KR100441913B1 - Power system protective control system - Google Patents

Abstract

Although the monitoring and control of the power system can be performed through the protective relay devices 1 to 3 installed in the electric station, it is necessary to install various dedicated programs in the monitoring control device 4 in advance. Therefore, when the number of protection relays installed in an electric station increases, the number of dedicated programs increases, and there is a problem in that the cost of purchasing dedicated software is enormous.

A web browser, which establishes a connection via a communication line with a web server mounted on the relay board, is mounted on the PC, and the system browser obtains the system status information stored in the relay board using the web browser.

Description

Power System Protection Control System {POWER SYSTEM PROTECTIVE CONTROL SYSTEM}

The present invention relates to a power system protection control system that performs protection and control of the power system.

23 is a configuration diagram showing a conventional power system protection control system, and in the drawing, 1 to 3 are installed in an electric station, and a protective relay device for tripping a circuit breaker when an accident is detected on a transmission line or bus. Is a supervisory control device which is installed at an electric station and another maintenance base, and monitors or controls the power system through the operation of the protective relay devices 1 to 3, and 5 to 7 supervisory control device 4 and a protective relay device. It is a dedicated communication line for connecting (1 to 3).

The following operation is described.

The supervisory control device 4 requests and receives transmission of the system state information collected by the protection relay devices 1 to 3 (for example, information indicating the open / closed state of the circuit breaker installed in the bus bar). Dedicated programs for detecting the state and dedicated programs for controlling breakers and disconnectors are installed through the protective relay devices (1 to 3).

Therefore, the supervisory control device 4 provided at a remote place away from the electric station can determine whether the power system is in a normal state through the protective relay devices 1 to 3, and at the same time perform the restoration work of the power system. There is a number.

Since the conventional power system protection control system is configured as described above, the monitoring and control of the power system can be executed through the protection relay devices 1 to 3 installed in the electric station. It is necessary to install in (4). For this reason, as the number of protective relay devices installed in electric stations increases, the number of dedicated programs increases and the cost of purchasing dedicated software increases. In addition, in order to execute a large number of dedicated programs, a high-performance computer is required, and there is a problem that the model of the supervisory control device 4 is limited. In addition, every time the protective relay device installed in the electric station is expanded, the program installed in the supervisory control device 4 must be changed, and there is a problem that the change of the system is cumbersome.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an object thereof is to obtain a power system protection control system capable of performing power system protection or control without mounting a dedicated program in an electronic terminal.

1 is a configuration diagram showing a power system protection control system according to Embodiment 1 of the present invention.

2 is an explanatory diagram showing a plurality of types of correction values tables.

3 is an explanatory diagram showing a web screen when the repair PC25 or the design PC27 approaches the correction value table A. FIG.

4 is an explanatory diagram showing a web screen after the correction value is changed.

5 is a system diagram showing a system configuration corresponding to the correction table A. FIG.

6 is an explanatory diagram showing a web screen on which operation history is displayed.

7 is a configuration diagram showing a power system protection control system according to a twenty-third embodiment of the present invention.

8 is an explanatory diagram for explaining supplementation of system state information.

9 is a configuration diagram showing a power system protection control system according to a twenty-fourth embodiment of the present invention.

10 is an explanatory diagram showing a screen for relay operation maintenance.

It is explanatory drawing which shows the relay operation maintenance screen.

12 is an explanatory diagram showing a relay operation maintenance screen.

It is explanatory drawing which shows the relay operation maintenance screen.

Fig. 14 is an explanatory diagram showing a display mode alternative selection screen and a relay operation maintenance screen;

15 is an explanatory diagram showing another example of the relay operation maintenance screen.

Fig. 16 is a flowchart showing the system construction method according to Embodiment 33 of the present invention.

17 is a configuration diagram showing hardware of the relay board.

18 is an explanatory diagram showing an example of a web screen in which a plurality of screens are displayed in parallel.

19 is an explanatory diagram showing a connection relationship between an additional relay plate, a plurality of relay plates, and a hub (I / O port).

20 is an explanatory diagram showing the detailed structure of the photoelectric conversion device 45. As shown in FIG.

21 is an explanatory diagram of a method of multiplexing an optical signal in an accident.

22 is an explanatory diagram of an optical frequency band in the case of multiple transmission of an optical signal.

23 is a block diagram showing a conventional power system protection control system.

<Description of the symbols for the main parts of the drawings>

11-14: Relay board (protective relay device) 15-18: Electronic acceptance device

19-22: Web server (Web server) 23-28: PC (electronic terminal)

29-34: Web browser 35: Communication line

41: breaker 42: software receiving device

43: hub 43T: additional connection terminal

43TT: Terminal for additional connection 45: Photoelectric conversion device

300: optical data signal 301: optical sampling synchronization signal

451: main light path 452 to 455: branch light

456: photoelectric conversion element 456T: electrical signal terminal

457: power converter 457T: connection terminal

458: photoelectric conversion element 458T1, 458T2: electrical signal terminal

459: power converter 459T: connection terminal

460: electrical insulation space 461: attached insulating member

4611 ~ 4614: attachment hole

The power system protection control system according to the present invention is equipped with a web browser which establishes a connection through a communication line with a web server mounted in the protection relay device, and uses the web browser to read the system state information stored in the protection relay device. It was to acquire.
The power system protection control system according to the present invention includes a plurality of protection relay devices equipped with hardware and software for providing a web server function and an information storage function respectively installed in a plurality of electric stations, and at least a power supply base and a device providing base. An electronic terminal equipped with hardware and software for providing a web browser function, which is a monitoring control device provided in one, and a protective relay device and a router which is an interface with the outside of the electronic terminal. The electronic terminal is connected via a communication line, and the electronic terminal accesses the protection relay device through the interface to obtain state information stored in the information storage device.
In the power system protection control system according to the present invention, the state information is relay internal state information, and the electronic terminal performs life diagnosis of the protection relay device according to the relay internal state information.
In the power system protection control system according to the present invention, the protection relay device controls the circuit breaker according to the circuit breaker operation command and outputs the system phenomenon information displaying the control result, and the system according to the system phenomenon information outputted the system model. It is equipped with a device model for performing the operation determination of the model.
In the power system protection control system according to the present invention, the state information is system state information, and the electronic terminal interprets the system state information and displays the result.
In the power system protection control system according to the present invention, the electronic terminal acquires status information and monitors a plurality of protection relay devices.
In the power system protection control system according to the present invention, the electronic terminal acquires status information and changes correction values of a plurality of protection relay devices.
In the power system protection control system according to the present invention, the electronic terminal of the power supply-side base acquires status information and monitors a plurality of protection relay devices, and the electronic terminal of the device-providing base acquires status information and corrects values of the protection relay device. To change.
In the power system protection control system according to the present invention, the electronic terminal of the power supply side base acquires state information and monitors the protection relay device, and the electronic terminal of the device providing side base acquires state information and sets or updates relay software.
In the power relay protection control system according to the present invention, the protection relay device controls the breaker based on the correction value stored in the recording device, and also records various operation histories in the storage device, the CPU is mounted, and the electronic terminal is protected. The operation history stored in the storage device of the relay device is read.
In the power system protection control system according to the present invention, the electronic terminal identifies a failure point of the system from the state information.
In the power system protection control system according to the present invention, an electronic terminal displays a type of a screen prepared for a protection relay device and simultaneously displays a first display area that accepts a display of the screen, and any screen among a plurality of types of screens. If the display is accepted, the second display area for displaying the screen is set in another area on the same screen.
In the power system protection control system according to the present invention, among the various relay elements corresponding to the system operation plan incorporated on the board as the protection relay device, the relay elements commonly used in the multiple systems are incorporated on the common board and the system operation plan The relay element optionally used in accordance with this is incorporated on a separate substrate.
In the power system protection control system according to the present invention, the electronic terminal displays the electronic data in the protection relay device in parallel in different areas on the same screen.
In the power system protection control system according to the present invention, the electronic terminal displays electronic data of different relay elements in the protection relay device in parallel in different areas on the same screen.
In the power system protection control system according to the present invention, the electronic terminal displays electronic data of an existing relay element in the protection relay device and electronic data of an additional relay element in the protection relay device in parallel in different areas on the same screen.
In the power system protection control system according to the present invention, the protection relay device is a Peter protection relay device and a transformer protection relay device, and the electronic terminal has different areas of the electronic data in the Peter protection relay device and the electronic data in the transformer protection relay device on the same screen. To display in parallel.
In the power system protection control system according to the present invention, when at least one of the protection control object and the protection relay device is not normal, the electronic terminal prioritizes the corresponding electronic data to the electronic data corresponding to the normal protection control object and the protection relay device. To display.
In the power system protection control system according to the present invention, the electronic terminal acquires status information in the case of a hub, and a plurality of relay elements constituting the protective relay device are individually united, and the unitization is performed by each relay element individually. Is connected to.
The power system protection control system according to the present invention further includes a photoelectric conversion device for connecting each protective relay device and an electronic terminal, and provides an electrical signal between the photoelectric conversion device and the protective relay device and between the optical conversion device and the electronic terminal. On the other hand, the photoelectric conversion device and the photoelectric conversion device is exchanged as an optical signal.
(Embodiment of invention)

One embodiment of this invention is described.

Embodiment 1

1 is a block diagram showing a power system protection control system according to a first embodiment of the present invention. In the drawing, 11 to 14 are installed in an electric power station, and trip breakers are detected when an accident is detected in a transmission line or a bus. At the same time, system status information (for example, information indicating the open / closed state of the breaker or the breaker installed in the bus, information on bus voltage, bus current, image current, etc.) is collected and stored in the electronic storage device (15-18). Relay panel (protective relay device) to store, electronic storage device for storing grid status information, 15 ~ 18, Web server is 19 ~ 22.

23-28 are PCs (electronic terminals) with display devices such as personal computers equipped with web browsers 29-34, and 29-34 are web servers (19-22) mounted on relay boards 11-14. ) And a Web browser connected through the communication circuit 35, 35 are wired or wireless communication circuit lines such as an internet, an ethernet, and an internet.

Next, the operation will be described.

The relay panels 11 to 14 are equipped with an interface capable of collecting system state information indicating an open / closed state of a circuit breaker installed in a bus, for example, and store the system information in the electronic storage devices 15 to 18.

On the other hand, a repair PC25 installed at a maintenance base at a power supply side such as an electric power company, for example, uses a web browser 31 to determine whether a transmission line connected to an A electric station is in a normal state. By connecting the relay board 11 of the A electric station and only the specified address information to the communication rotation 35, a connection with the Web server 19 mounted on the relay board 11 is attempted.

When the web server 19 mounted on the relay board 11 receives this address information, the connection between the web browser 31 and the web server 19 is established.

In this way, when the connection between the web browser 31 and the web server 19 is established, HTTP communication between the web browser 31 and the web server 19 is started, and the maintenance PC25 uses the web browser 31 for the system. The status information is sent to the web server 19 of the relay board 11.

When the web server 19 mounted on the relay board 11 receives a request for transmission of the system status information from the maintenance PC25 through the communication line 35, the web server 19 communicates the system status information stored in the electronic storage device 15. It transfers to the maintenance PC25 via the line 35.

For this reason, the maintenance PC25 can judge whether the power transmission line connected to A electric station is in a normal state.

In addition, since the Java PC is mounted on the maintenance PC25, a program for displaying system status information on the screen is downloaded from the electronic storage device 15 through the communication line 35 at the time of execution of java. There is no need to install the PC25 in advance.

As is apparent from the above, according to the first embodiment, the personal computer is equipped with a web browser which establishes a connection via a communication line with a web server installed in the relay board, and is stored in the relay board using the web browser. It is configured to acquire the system status information, so that it is possible to grasp the power system status without having to install a dedicated program in the PC.

Therefore, if a web browser (universal browser software) is mounted, the purchase cost of the dedicated software does not occur, so that the system construction cost can be reduced.

General-purpose browser software is generally available free of charge and is assembled at the time of purchase on almost all PCs.

In addition, the version up of the general-purpose browser software can be easily performed through the Internet.

In addition, any type of PC can be used as long as the computer can be equipped with a web browser, and an expensive high performance computer is not required.

That is, other PCs 23, 24, 26-28, power supply base, device supply side, and mobile PCs (electronic terminals with portable display devices) of A-C electric stations have the same functions as those described above with PC25 as necessary. do.

Embodiment 2

In the first embodiment described above, the system state information stored in the electronic storage device 15 of the relay panel 11 is acquired using the web browser 31, but the relay is executed using the web browser 31. The operation setting information of the protection relay device included in the system state information stored in the electronic storage device 15 of the van 11 is changed through the communication line 35.

As a result, the operation setting information of the protection relay device can be changed without mounting the dedicated program on the maintenance PC 25, the other PC, or the movable PC.

Embodiment 3

In the first embodiment, the system state information stored in the electronic storage device 15 of the relay panel 11 is obtained by using the web browser 31. However, the relay panel is used by using the web browser 31. The relay internal state information stored in the electronic storage device 15, etc. of (11) may be acquired, and life diagnosis of the relay board 11 or the like may be performed through the communication line 35 based on the relay internal state information. do.

For example, in the relay panel 11, the AD conversion data for the reference input of the analog input unit is transmitted as the relay internal state information to the maintenance PC25 via the communication line 35.

Then, a trend (TREND) between the AD converted data and the past AD converted data is analyzed, and the lifespan diagnosis is performed by comparing the analysis result with the result of a good judgment.

If the remaining life is small, an alarm is output to the PC25 and the relay board 11.

As a result, it is possible to reduce the labor cost since the field serviceman can diagnose the remaining life without going to the electric station and conducting the characteristic test.

In addition, since it is possible to diagnose the lifespan in a short period of time because it does not require the labor, there is an effect that can maintain a high reliability of the system.

In addition, since the life diagnosis can be performed without the need to stop the relay board, the life diagnosis can be performed without being restricted by the system operation.

Embodiment 4

In Embodiment 3, the maintenance PC25 is shown to perform life diagnosis, but the development, design, or production PCs 26 to 28 installed in the maker acquire internal state information through the communication line 35. Life diagnosis may be performed.

The same effects as in the third embodiment are shown.

Similarly, life-time diagnosis can be performed even if necessary for the PC23 or 24 for facility planning or control, or the movable PCs of the bases and electric stations.

Embodiment 5

Although the embodiment 1 did not specifically mention the simulation of the relay board 11, a system model for controlling the circuit breaker according to the circuit breaker operation command and outputting system phenomenon information indicating the control result, and the system model are outputted. The device model for executing the operation determination of the system model based on the system shape information described above may be mounted in the repair PC25, and the relay panel 11 may be simulated in the repair PC25.

For example, when the system model receives the circuit breaker operation command from the device model, the circuit breaker is controlled according to the circuit breaker operation command to separate the system accident section and output the system phenomenon information indicating the current system status.

When the device model receives the system phenomenon information from the system model, the system model executes the operation determination of the system model based on the system phenomenon information, and the system model feeds back the operation determination result.

Thus, in addition to system accident response, there is an effect that verification can be performed including recovery control after separation of the accident section.

In addition, device model response can be verified continuously while changing the system conditions.

If the verification results are known facts, the system model can be assumed to be in good standing to verify the validity of the device model.

On the contrary, it is possible to verify the validity of the system model by making the device model successful.

Embodiment 6

In the fifth embodiment, the maintenance PC25 displays the system model and the device model, but the facility planning PC23 manages the system model and the design production PC27 manages the device model.

The same effects as in the fifth embodiment can be obtained.

In addition, the same management can be performed with the other PCs 24, 26 to 28, and each movable PC as necessary.

Embodiment 7

In the first embodiment, the system state information stored in the electronic storage device 15, etc. of the relay panel 11 is obtained by using the web browser 31, but is stored in the electronic storage device 15, etc. In addition to the system status information, an analysis tool may be downloaded to the maintenance PC25 via the communication line 35.

When the maintenance PC25 downloads the analysis tool, the analysis tool is executed in the browser to analyze the system status information and display the analysis result.

Analysis tools include waveform analysis, vector analysis, frequency analysis, and the like.

As a result, the analysis work can be performed at the base where the repairman or the design engineer resides, thereby eliminating the cost and time loss caused by the movement of the repairman or the design engineer.

Therefore, when an analysis is required in a short time as in a system accident, the request can be coped with.

When the system status information is downloaded, the analysis tool is also downloaded to the maintenance PC25, so that the analysis process can be executed without installing the analysis tool in advance for the maintenance PC25.

However, the analysis tool may be installed in advance on the repair PC25.

In the seventh embodiment, the maintenance PC25 is shown to execute the analysis process, but the present invention is not limited thereto. For example, the design PC27 or the other PCs 23, 24, 26, 28, and each operation PC may execute the analysis process. You may also do it.

In the seventh embodiment, the analysis tool is downloaded from the electronic storage device 15 of the relay board 11, but the present invention is not limited thereto. For example, the server is provided at the power supply base or the device provision base. The analysis tool may be downloaded through the communication line 35 at.

Embodiment 8

In the first embodiment, the system state information stored in the electronic storage device 15 of the relay panel 11 is obtained by using the web browser 31. However, the web browser 31 or the like is used to obtain. Repair of the internal state display software via the communication line 35, which enables the arrival of the electronic device (e.g., opening / closing information of the circuit breaker or information of the current voltage) stored in the electronic storage device 15 of the relay board 11 or the like. It may be downloaded to PC25 for design or PC27 for design, and the maintenance PC25 or design PC27 may execute the internal status display software as necessary.

The internal status display software has a function of displaying the operation result of the relay panel 11, the fault occurrence status, the operating condition setting status, and the like, so that a maintenance worker or a design engineer compares the knowledge of his / her knowledge with the relay panel 11, etc. You can accurately grasp the state of.

Embodiment 9

In the eighth embodiment, the downloading of the internal state display software using the web browser 31 or the like is shown, but the internal state setting software for setting the internal state of the relay beam 11 or the like is provided for maintenance PC25 or design. When the PC25 for maintenance or the PC27 for design executes the internal state setting software, the system performs the comparison operation to be performed in the PC when determining the operation of the circuit breaker 11 or the like. Corresponding to a set value compared with a current).

As a result, it is easy to collectively manage the correction values of the plurality of relay panels, thereby improving the reliability of the system.

In addition, since the maintenance personnel or the design engineer can change the correction value even without going to the electric station on site, there is an effect that the response of the system configuration can be quickly responded.

Embodiment 10

In the above embodiments 8 and 9, the internal state display software and the internal state setting software are displayed for downloading to the maintenance PC25 or the design PC27, but the internal state display software is downloaded to the maintenance PC25 via the communication line 35. The internal state setting software may be downloaded to the design PC27 via the communication line 35.

Because of this, if the program structure of the internal state display software and the internal state setting software is large, it is downloaded to each PC, thereby reducing the time required for downloading.

Embodiment 11

In the eighth embodiment, the downloading of the internal status display software using the web browser 31 or the like is displayed. However, the relay for setting or changing the relay software such as the relay panel 11 using the web browser 33 is shown. The S / W setting software may be downloaded to the design PC27 through the communication line 35, and the internal state display software may be downloaded to the maintenance PC25 through the communication line 35 using the Web browser 31.

As a result, when it is necessary to expand or change the functions of the relay panel 11, there is an effect that a repairman or a design engineer can quickly expand or change the functions of the relay panel 11, etc. without going to the electric station on site. .

In addition, in the eleventh embodiment, the design PC27 displays that the relay software such as the relay board 11 is set or changed, but the design PC27 repairs the relay S / W setting software through the communication line 35. It may be transmitted to the PC25 for maintenance, and the maintenance PC25 may set or change relay software such as the relay board 11 through the communication line 35.

In addition, in Embodiment 11, although the maintenance PC25 displayed about monitoring the relay board 11 etc., the design PC27 downloads the internal state display software through the communication line 35, and the relay board 11 etc. are shown. It may be monitored.

Embodiment 12

Although not specifically mentioned in the above-described embodiments 10 and 11, the design PC27 stores at least one electronic data among the drawings, the manual production year and the functional summary of the relay board 11 and the like, and stores the electronic data in the communication line 35. It may be transmitted to the maintenance PC25 via

That is, when the design PC27 receives the electronic data transmission request from the maintenance PC25, the maker, who is in the position to manage the electronic data, determines whether the transmission request is justified, and if the transmission request is justified, The PC27 is operated to transmit the electronic data to the maintenance PC25 via the communication line 35.

As a result, maintenance workers and the like have an effect of obtaining appropriate up-to-date information when necessary.

In addition, in order to prevent information from being leaked to anyone other than an authorized person, reference rights of electronic data are managed by the public key method of the Internet.

In addition, in order to prevent electronic data from being tapped on the communication line 35, the electronic data is concealed by the encryption technology of the Internet.

Embodiment 13

In the twelfth embodiment, the design PC27 indicates that the electronic data is sent to the repair PC25, but the repair PC25 may read the electronic data stored in the design PC27 through the communication line 35. ,

The same effects as in the 12th embodiment are obtained.

Embodiment 14

In the twelfth embodiment, the design PC27 stores at least one piece of electronic data among the drawings, manuals, production years, and functional outlines related to the relay board 11 and the like, and is displayed for transmitting the electronic data to the repair PC25. The PC25 may store electronic data relating to facility planning of power transmission lines, transformers, circuit breakers and the like including the relay board 11, and transmit the electronic data to the design PC27 via the communication line 35.

This enables Mecca design engineers to verify the adequacy of facility protection for the relay station to be installed using electronic data on facility planning.

The user's facility planner can receive the results of Mica's verification and specify or reevaluate the facility plan.

Embodiment 15

In the fourteenth embodiment, the repair PC25 indicates that the electronic data relating to the facility planning is transmitted to the design PC27, but the design PC27 reads the electronic data stored in the repair PC25 through the communication line 35. Or

The same effect as in the 14th embodiment is shown.

Embodiment 16

In the twelfth embodiment, a configuration is described in which the design PC27 transmits electronic data such as a drawing relating to the relay board 11 and the like to the repair PC25. In the fourteenth embodiment, the repair PC25 uses electronic data related to facility planning. Has been described, but the electronic data such as the drawings of the relay board 11, etc. of the design PC27 are transmitted to the repair PC25 via the communication line 35, and the repair PC25 is used in the facility plan. The electronic data may be transmitted to the design PC27 via the communication line 35.

Embodiment 17

In the sixteenth embodiment, the design PC27 transmits electronic data such as a drawing relating to the relay board 11 and the like to the repair PC25, and the repair PC25 transmits electronic data related to the facility plan to the design PC27. The equipment plan for which the design PC27 is stored in the repair PC25 while the electronic data such as the drawings related to the relay board 11 and the like, which is displayed but the repair PC25 is stored in the design PC27, is read through the communication line 35. The electronic data related to the data may be read through the communication line 35.

Embodiment 18

In the ninth embodiment, the internal state setting software is executed to change the correction value of the relay board 11 or the like. However, the repair PC25 or the design PC27 correspond to the system conditions in the plurality of types of correction value tables. The correction value table may be selected to change the correction value of the relay board 11 or the like through the communication line 35.

Specifically, as shown in Fig. 2, a plurality of kinds of correction value tables are stored in the relay board 11 or the like, and the maintenance PC25 or the design PC27 communicates the arbitrary correction value tables using the web browser 31 or the like. To reach through line 35.

3 shows a web screen when the maintenance PC25 or the design PC27 reaches the correction value table A. FIG.

In the case where the correction value table A corresponds to the system configuration of FIG. 5, when the breaker 41 is switched from the ON state to the OFF state, the system state information is transmitted to the maintenance PC25 from the relay board 11 or the like and the maintenance PC25. Etc calculates the optimum correction value for the current system configuration.

The new correction value is transmitted to the relay panel 11 or the like so that the correction value of the relay panel 11 or the like is changed via the communication line 35.

4 shows the Web screen after the correction value is changed.

Here, for calculating the optimal correction value of the system configuration, the correction value table corresponding to the system configuration after the change is selected from the correction table A corresponding to the system configuration before the change (correction table B). The correction value stored in the correction value table B may be changed as a correction value of the relay board 11 or the like.

As a result, since the correction value can be changed at a remote location, the operation maintenance can be rationalized.

In addition, since the correction value is automatically changed when the system configuration changes, there is an effect that can prevent the incorrect setting by humans.

Embodiment 19

In the eighteenth embodiment, although the correction value table is displayed in the relay panel 11 or the like, a storage device for collectively storing the correction value tables of the plurality of relay panels is provided outside the relay panel 11 or the like. You may also do it.

For this reason, there exists an effect which can manage the correction value table of several relay board collectively.

Embodiment 20

In the nineteenth embodiment of the present invention, a storage device for collectively storing correction value tables of a plurality of relay panels is displayed outside the relay panel 11 or the like, but communication lines between some storage devices and the relay panel 11 In the normal case, the correction value table stored in the external storage device is selected, and if the communication line is not normal, the correction value table stored in the internal storage device is stored through the sound communication line 35 or in the electric station. You may select from.

Therefore, it is possible to collectively manage the correction value tables of the plurality of relay panels and to select an appropriate correction value table even when a communication error occurs.

Embodiment 21

In the above embodiments 1 to 20, the control of the breaker based on the correction value of the relay board 11 or the like is shown, but the CPU for storing the operation history of the relay board 11 or the like in the storage device is the relay board 11. And the like, and the maintenance PC 25 or the like may read the operation history stored in the storage device such as the relay panel 11 by using the web browser 31 or the like through the communication line 35.

As a result, the maintenance staff can record the operation history reliably without recording the operation history by themselves whenever the operation is performed, and at the same time, the operation history can be quickly identified by checking the operation history when an abnormality occurs.

Embodiment 22

In the twenty-first embodiment described above, the operation details of the relay board 11 and the like are stored in the storage device. However, the operation contents include the date of change of the correction value, the object of change, the correction value before the change, the correction value after the change, and the like. You may also do so.

6 is a web screen showing operation details.

This has the effect of recognizing details of the operation regarding the change of the correction value.

Embodiment 23

In Embodiments 1 to 22, the identification of the failure point of the power system was not particularly mentioned, but as shown in FIG. 7, system state information (voltage and current information to which sampling time information was added) within the self-monitoring range. For example, in the relay boards 11 to 14 storing the information, for example, the maintenance PC25 reads the system status information through the communication line 35 using the web browser 31, and from the system status information. You may also check the fault points of the system.

That is, when the maintenance PC25 reads the system status information from the relay boards 11 to 14, the system fault information is identified from the system status information. However, the sampling time of the system status information in the relay boards 11 to 14 is checked. Is subtly displaced, and as shown in FIG. 8, by referring to the system state information of a relay panel (based on the system state information of the relay panel 11), the sampling time information is used for each relay panel. Complement the system status information and calculate the system status information at the same sampling time.

When the sampling time calculates the system status information at the same time as the sampling time, the FL operation program is executed to identify the fault point of the system using the system status information at the same time.

The FL calculation program may be installed in advance in the maintenance PC 25 or may be downloaded from the relay board 11 or the like through the communication line 35.

This makes it possible to check the system failure by using a maintenance PC25 composed of a personal computer or the like without installing dedicated hardware for identifying the failure point.

In addition, there is an effect that can confirm the failure of the system without stopping the relay panel.

Embodiment 24

In the twenty-third embodiment, the maintenance PC25 or the like is displayed for calculating the system state information at the same time as the sampling time, but as shown in FIG. 9, the same time is achieved by synchronizing the sampling time between the plurality of relay panels. System status information may be provided to the maintenance PC25.

As a result, the repair PC25 and the like have an effect of identifying a failure point without calculating the system state information at the same time.

Embodiment 25

In Embodiments 1 to 24, the relay operation maintenance screen displayed by the maintenance PC25 is not particularly mentioned, but the operation maintenance screen may be set as follows.

That is, as shown in Fig. 10, a screen which is prepared in advance for the relay panel 11 or the like, and whichever screen is selected from among a plurality of types of screens and a first display area for accepting the display of the screen. If display of is accepted, a second display area for displaying the screen concretely is set on the same screen.

Specifically, upon receiving the display request of the relay operation maintenance screen, the type of the screen prepared in advance for the relay panel 11 or the like is displayed in the first display area.

In the example of FIG. 10, a "correction screen", a "relay operation screen", an "input electric power screen", and the like are prepared in advance.

For example, if " correction screen " is selected by clicking " 1. Correction ", as shown in Fig. 10, &quot; 1. Correction &quot; is reversed to display specific contents of the &quot; correction screen &quot; in the second display area.

When the details of the "correction screen" are displayed in the second display area and the "2, relay operation" displayed in the first display area is selected by clicking, the second display area is displayed in detail. The contents are displayed.

In this way, since the first display area and the second display area are secured on the same screen, it is possible to grasp the entire configuration of the relay operation maintenance screen and to easily grasp which screen is currently displayed.

In addition, since the first display area is resident on the screen, it is possible to simplify the transition operation to another screen.

In general, since the first display area does not reside on the screen, it is necessary to select the display target screen after displaying the first display area once to change to another screen.

Embodiment 26

In the twenty-fifth embodiment, the first display area is shown above the second display area. However, as shown in FIG. 11, the first display area may be set on the left side of the second display area.

Because of this, since the arrangement is the same as the information arrangement screen of many other information terminals, there is an effect that the user can naturally settle the operation of a convenient new function.

In addition, as in the twenty-fifth embodiment, by setting the display area of the second display area to be wider than the display area of the first display area, specific contents of the screen can be displayed in detail without impairing operability of the screen transition operation. To make sure.

Embodiment 27

In the twenty-fifth embodiment, the first display area and the second display area are displayed on the same screen, but as shown in Fig. 12, the type of the relay panel 11 or the like (name of the relay panel) and the relay panel ( 11) The third display area for displaying the name of the electric station in which the lamp is installed, the state of the relay board 11 and the like may be set on the same screen as the first and second display areas.

In the twelfth example, this relay panel is installed in a substation in Beijing, and the type of relay panel is a DZ device, and indicates that part of the current system is February 12, 2000, and this relay panel is currently normal. It is currently showing that it is being corrected.

In addition, you may display the information (for example, the number of successes of a test | inspection) regarding the relay board not illustrated here.

Because of this, it is possible to recognize the information on the relay panel in communication with the current maintenance PC25 in detail, thereby making it possible to accurately and efficiently maintain the relay panel.

Embodiment 28

In the twenty-seventh embodiment, the third display area is displayed on the right side of the second display area. However, as shown in Fig. 13, the third display area may be set above or below the second display area. .

Thus, the information of the second display area and the information of the third display area can be displayed relatively.

In the same way as in the twenty-seventh embodiment, the display area of the second display area is set wider than that of the third display area so that the specific contents of the second display area can be displayed in detail.

Embodiment 29

In the 25th to 28th embodiments, the first display area is displayed on the relay operation maintenance screen. However, as shown in Fig. 14, the display mode alternative selection screen is displayed before the relay operation maintenance screen is displayed. The display mode alternative selection screen may be used, and the presence or absence of the display of the first display area may be set.

That is, the display mode alternative selection screen is either one of the first display mode for displaying the first display area and the second display area on the same screen, or the second display mode for displaying the second display area without displaying the first display area. When the first display mode is selected, the first display area is displayed on the screen, but when the second display mode is selected, the first display area is not displayed on the screen.

As a result, the screen configuration that respects the user's intention can be set.

Embodiment 30

In the twenty-ninth embodiment, the display mode alternative selection screen is displayed before the relay operation maintenance screen is displayed. On the display mode alternative selection screen, the display mode alternative selection screen is memorized and the display mode alternative selection screen is displayed next. When the display mode is displayed, the display mode may be focused. For this reason, unless the display mode is changed, the same display mode is selected (selection of the display mode is completed by simply clicking the OK button), thereby achieving an effect of simplifying the operation.

Embodiment 31

In the above embodiments 25 to 30, the software for displaying the relay operation maintenance screen or the display mode alternative selection screen and the relay internal status information of the relay board (hereinafter referred to as "information about the display of the screen" including the software and the relay internal status information); Although not specifically mentioned, the maintenance PC25 may download the information on the display of the screen stored in the relay board 11 or the like using the web browser 31.

Thus, there is an effect that the maintenance PC25 does not need to secure a memory area for storing information on the display of the screen.

Embodiment 32

Regarding the change of the correction value of the relay board in the above-described embodiments 25 to 31, the various screens displayed in the second display area, although not paid in advance, include a screen for accepting the change of the correction value of the relay board, If the fixation is received, the repair PC25 may change the relay board correction value.

Thus, the correction value of the relay board can be changed on the screen displayed in the second display area.

In FIG. 15, the initial screen of the second display area is displayed to display the same type as the type of the upper concept of the first display area. When the correction value of the type of the second display area is selected and clicked, FIGS. In 14, there is an example in which the display screen of the second display area is opened, and has the same effect as in FIGS. 10 to 15.

Embodiment 33

Fig. 16 is a flowchart showing the system construction method according to Embodiment 33 of the present invention.

17 is a block diagram showing hardware of the relay board.

The relay panel is composed of a signal input unit for inputting a system information signal and a CPU unit for executing processing in accordance with the system information signal.

The CPU unit receives the input / output processing CPU card that executes input / output processing for the system information signal input by the signal input unit and the PC25 for maintenance, and the like. The common CPU card (common board) having the function of the relay element commonly used in a plurality of systems among the human interface CPU card and various relay elements to be transmitted to the system and the relay element selectively used according to the system operation plan. It consists of individual CPU cards (individual boards) with functions.

Therefore, when a relay element corresponding to the system operation plan is incorporated in the relay board, the functions of the relay elements commonly used in a plurality of systems among various relay elements are provided by providing a common CPU card (step ST1), The function of the relay element selectively used in accordance with the system operation plan is made by providing an individual CPU card (step ST2).

In addition, individual CPU cards can be serialized for each relay element and selectively replaced to build a system that matches the system configuration.

Regarding the software of the relay element mounted on the relay panel, the software of the relay element is loaded into the relay panel by downloading the software of the relay element to the relay panel through the communication line from the software storage device 42 in which the relay element software is stored.

That is, since software of the relay element corresponding to the multiple system configuration is stored in the software storage device 42 installed at the power supply side of the power supply company or the like, the PC23 for the facility planning at the facility planning base has a When the relay designation information is inputted to designate the relay station to be changed in accordance with the plan change and the relay element software required by the relay station, the software of the relay element is selected (step ST3), and this software is used as the common CPU card of the relay station. And at least one of the individual CPU cards is downloaded via the communication line 35 (step ST4).

However, if there is no individual CPU card, it is downloaded only to the common CPU card and the steps ST3 and ST4 are allocated.

If the relay board itself is not changed, and the relay board itself is newly established, the software of the relay elements required by the relay board is downloaded to the common CPU card of the relay board and the individual CPU card as required by the facility plan.

In addition, when the relay software is stored in advance in the common CPU card or the individual CPU card without the communication line 35, only the steps ST1 and ST2 are used, and the steps ST3 and ST4 are allocated.

As is apparent from the above, according to the thirty-third embodiment, when only a relay is modified in accordance with the plan change, the individual CPU card is added or replaced according to the system operation plan, and at the same time, the relay element software required by the relay board is changed after the change. It can cope simply by downloading, so it is easy to build the system according to the system operation plan.

Since the software storage device 42 stores the software whose operation has been checked, there is an effect that it is possible to omit the trouble of performing the operation verification experiment after downloading the software.

Therefore, the blackout time accompanying the change of a system operation plan can be shortened.

In the thirty-third embodiment, the input / output processing CPU, the common CPU, and the human interface CPU can be implemented in common with one or two CPUs according to the CPU processing performance.

Embodiment 34

In the thirty-third embodiment, the installation planning PC23 reads the system operation planning information created by the system operation planning base to display the software for relay elements required by the relay board after the change. The PC 27 reads the system operation planning information created by the system operation planning base through the communication line, and may download the relay element software required by the relay board after the change.

The same effect as in the thirty-third embodiment is obtained.

Embodiment 35

In the thirty-third embodiment, the expansion or solidification of individual CPU cards is indicated in accordance with the system operation plan; however, the CPU unit may be expanded by expanding the signal input unit.

The same effects as in the thirty-third embodiment are exhibited.

Embodiment 36

As shown in Figs. 1 and 18, the thirty-fourth embodiment is provided with a plurality of protection relay devices 11 to 14 respectively provided in a plurality of electric stations (A, B and C stations in Fig. 1). And software for allowing access to electronic data stored in the multiple protection relay devices 11 to 14, and the electronic data is acquired by executing the software to display the electronic data in the multiple protection relay device on the screen. An electronic terminal (at least one of the electronic terminals 23 to 28 and the movable PC), and the electronic data in the protection relay devices 11 to 14 are displayed in parallel on the other areas A1 to A4 on the same screen A. It was made possible.

For this reason, it is possible to easily compare the system state of the plural electric stations (A electric station, B electric station, C electric station) and the state of the protective relay devices 11 to 14, so that these states can be easily confirmed.

Embodiment 37

In this embodiment 37, as shown in Figs. 1 and 18, the plurality of protection relay devices 11, 12 provided in one electric station, for example, A electric station, and the protection relay device 11 (12) is equipped with software that allows access to the electronic data stored in (12), and the electronic data is obtained by executing the software to display the electronic data in each protection relay device on the screen. Terminals (at least one of the electronic terminals 23 to 28 and the movable PC), and the like of the other relay elements (distance relay, ground fault relay, differential protective relay, etc.) in the protective relay devices 11 and 12. Electronic data is displayed in parallel in different areas A1 to A4 on the same screen A. FIG.

For this reason, since the states of a plurality of protection relay devices can be compared easily, these states can be confirmed easily.

Embodiment 38

In this embodiment 38, as shown in Figs. 1, 18 and 19, the protective relay devices 11 and 12 provided in an electric station such as an A electric station, the protective relay device 11, (12) An electronic terminal equipped with software for allowing access to the electronic data stored in the ... and executing the software to acquire the electronic data and display the electronic data in the protective relay device on the screen. A relay element (relay panel 11, 12, 13 or distance relay of FIG. 19) provided with electronic terminals 23-28 and at least one of movable PCs, and installed in the protection relay device; To display the electronic data of the ground fault relay and the electronic data of the additional relay element (relay board 14 or the differential relay in FIG. 19) in the protection relay device in parallel in different areas A1 to A4 on the same screen A (FIG. 18). It is.

As a result, the state of the system or the state of the relay elements (relay boards 11, 12, 13, or distance relays and ground fault relays) of the existing relay element in the protection relay device can be added. Half (14) or differential relays) can be easily compared, so that their status can be easily confirmed.

Embodiment 39

As shown in Fig. 1, Fig. 18 and Fig. 19, this embodiment 39 is a feeder protection relay device (electric stations A, B and C) of Fig. 1 and transformer protection installed in electric stations as shown in Figs. 1, a relay device (not shown in FIG. 1, a well-known transformer protection relay device for protecting a transformer) and software for allowing access to the electronic data stored in each protection relay device are mounted and the software is executed by executing the software. An electronic terminal (at least one of the electronic terminals 23 to 28 and the operating PC) for acquiring and displaying the electronic data in the plurality of protection relay devices, and the electronic data in the feeder protection relay device and the transformer relay device. The electronic data is displayed in parallel in different areas A1 to A4 on the same screen A (Fig. 18).

Because of this, the state of the feeder protection relay device and the state of the transformer protection relay device can be compared, so that the state over the wide area of the system can be easily confirmed.

Embodiment 40

In this embodiment 40, at least one of the type of relay and the type of electric station as displayed in the third display area is displayed together in all of the electronic data displayed in parallel in the display areas A1 to A4 as shown in FIG. It was made possible.

As a result, it is possible to check whether the state of the screen is the state of which relay device of which electric station.

Embodiment 41

This Embodiment 41 is such that the display method of the parallel-displayed electronic data is different when the corresponding protection control object (corresponding system, transformer, relay device or relay element) is not normal.

For example, when an abnormality occurs in the relay panel 11 in FIG. 1, the corresponding display area of the relay panel 11 in FIG. 18, for example, the display area A1 is pulled out and other locations (normal relay panel 12, ( 13) and 14) display continuously without flickering.

For this reason, it is not necessary to check and judge the contents of the state of each relay device displayed in parallel in the display areas A1 to A4 one by one, and the display in the case of abnormality can be confirmed at a glance.

Embodiment 42

In this embodiment 42, the electronic data displayed in parallel or the color of the screen are different when the corresponding protection control object (corresponding grid, transformer, relay device or relay element) is abnormal or abnormal.

For example, when an abnormality occurs in the relay panel 11 in FIG. 1, the corresponding display area of the relay panel 11 in FIG. 18, for example, the display area A1, is displayed in red (background color or data display in red). The other points (normal relay boards 12, 13 and 14) are set to green display (background color or data display to green display).

For this reason, there is no need to check and judge the contents of the state of each relay device displayed in parallel in the display areas A1 to A4 one by one, and it is possible to confirm the display of abnormal cases at a glance.

Embodiment 43

In this embodiment 43, the case where the parallel-displayed electronic data is abnormal in priority than the normal case in which the corresponding protection control object (corresponding system, transformer, relay device or relay element) is displayed in color is displayed prominently.

For example, when an abnormality occurs in the relay panel 11 in FIG. 1, the corresponding display area of the relay panel 11 in FIG. 18, for example, the display area A1 is displayed in red, (background color or data display in red). And other points (normal relay boards 12, 13, and 14) to gray display (background color or data display to gray display).

As a result, it is not necessary to check and determine the contents of the state of each relay device connected in parallel to the display areas A1 to A4 one by one, and the display in abnormal cases can be confirmed at a glance.

Embodiment 44

In the 44th embodiment, when each protection control object (corresponding system, transformer, relay device or relay element) is normal, the protection control object in which the corresponding electronic data is displayed in parallel in the display areas A1 to A4 shown in FIG. When any one of the abnormalities is abnormal, for example, when an error occurs in the relay panel 11, the electronic data, such as voltage, current, etc., the input electric quantity of the normal protection control object, for example, the electrons of the relay panels 12-14. Prior to the data, as shown in FIG. 15, the display of electronic data of the normal protection control object, for example, the relay panels 12 to 14 is excluded, and only the electronic data of the abnormal relay panel 11 is displayed first. .

As a result, the contents of the electronic data in an abnormal case, for example, the screen 3-1 and the screen 3-2 of the input electric quantity of the screen 3 in the first display area of FIG. .

Embodiment 45

The 45th embodiment is stored in a plurality of protective relay devices 11 to 14 and a plurality of protective relay devices 11 to 14 respectively installed in a plurality of electric stations (A, B and C stations in FIG. 1). It is equipped with electronic terminals 23 to 28 which are equipped with software for enabling the arrival of electronic data and executing the software to acquire the electronic data and display the electronic data in the plurality of protective relay devices on the screen. When at least one of the object (system feeder, transformer, etc.) and the protective relay devices 11 to 14 is abnormal, the corresponding electronic data is displayed in preference to the normal electronic control data and the electronic data corresponding to the protective relay device.

That is, in the case where the electronic data of the protection control object (system feeder, transformer, etc.) and the protection relay devices 11 to 14 are not displayed in parallel but alternatively displayed in the drawing, the priority is given to the alternative display. Electronic data that is not normal is displayed first.

As a result, it is possible to quickly check the contents of the electronic data that is not normal.

Embodiment 46

In the embodiment 46, when at least one of the protection control object (system feeder, transformer, etc.) and the protection relay devices 11 to 14 is abnormal, the corresponding electronic data is stored in the electronic terminal (electronic terminals 23 to 28) and movable. At least one of the type PCs) is displayed on the initial screen.

As a result, it is possible to quickly check the contents of the electronic data in abnormal cases.

Embodiment 47

As shown in FIG. 1 and FIG. 19, the seventy-ninth embodiment includes a plurality of protection relay devices 11 to 14 provided in a plurality of electric stations (A electric station, B electric station, and C electric station in FIG. 1), respectively. By mounting the software which enables the arrival of the electronic data stored in the multiple protection relay device and executing this software, this electronic data is acquired via the hub (I / O port of FIG. A plurality of relay elements comprising an electronic terminal (at least one of the electronic terminals 23 to 28 and the movable PC) for displaying the electronic data in the protective relay devices 11 to 14 of the controller, and constituting the protective relay device; (Relay vanes 11, 12, 13, 14, or distance relay elements, ground relay elements, differential protection relay elements, etc.) are individually united, and each of these united relay elements is individually To the hub (I / O port) 43.

For this reason, the addition or replacement of the relay element is made only of this relay element, and can be easily and cheaply made.

Embodiment 48

In this embodiment 48, the relay elements (relay vanes 11, 12, 13, 14, or distance relay elements, ground relay elements, differential protective relay elements, etc.) and hubs, as shown in FIG. The connection method with the I / O port 43 in Fig. 19 is a plug-in connection method.

This makes it easy to add or replace relay elements in a short time.

Embodiment 49

This embodiment 49 is for further connection in which a relay element (relay panel 14 indicated by a dotted line in FIG. 19) can be added to the hub (I / O port) 43 as indicated by a dotted line in FIG. 19. Since the terminal 43TT is installed in advance and the additional connection terminal is connected to the electronic terminals 23 to 28 and the mobile PC in advance, additional connection of the relay element (the relay panel 14 indicated by the dotted line in FIG. 19) is performed. The electronic data of the additional relay element (relay board 14 shown in dotted line in Fig. 19) is displayed on the screen of the electronic terminals 23 to 28 and the movable PC only by connecting to the terminal 43TT. Is displayed.

Embodiment 50

In this embodiment 50, the electronic data of the relay elements (for example, relay panels 11, 12, and 13 of FIG. 19) already installed, and the empty electronic data of the relay elements (relay board 14 of FIG. 19) not added. Is displayed on another area of the same screen A of the electronic terminal (for example, display areas A1, A2, A3, and A4 in Fig. 18.) For example, relay elements already installed in display areas A1, A2, and A3 in Fig. 18 (Fig. 19). Electronic data is displayed as shown in FIG. 18 by the relay panels 11, 12, and 13 of FIG. 18, and the empty electronic data of the relay element (relay panel 14 in FIG. 19) not added is shown in FIG. In the display area A4 of FIG. 18, unlike in FIG. 18, the display area A4 does not display (only the background color of the electronic data is displayed).

As a result, since there is a non-display area (electronic data is displayed only the background color without display), it is easy to determine whether to add a relay element.

In this case, if the type of relay station (device) of the electric station is displayed, it is very convenient because the presence of the relay element that has not been added can be confirmed on the screen of the electronic terminal.

Embodiment 51

As shown in Figs. 1 and 20, this Embodiment 51 includes a plurality of protective relay devices 11 to 14, which are respectively provided in a plurality of electric stations (A, B and C stations in Fig. 1). And an electronic terminal for acquiring the electronic data and displaying the electronic data in the plurality of protective relay devices on the screen by mounting the software to enable access to the electronic data stored in the plurality of protective relay devices and executing the software. (At least one of the electronic terminals 23 to 28 and the movable PC), the protective relay devices 11 to 14, and the electronic terminal (at least one of the electronic terminals 23 to 28 and the movable PC) The photoelectric conversion device 45 is provided, and the photoelectric conversion device 45 and the protective relay devices 11 to 14 and between the photoelectric conversion device 45 and the electronic terminal are used as electrical signals. Between the device 45 and the photoelectric conversion device 45 is an optical signal.

As a result, even if an abnormality occurs in the electrical signal transmission system of any one of the protective relay devices 11 to 14, the electrical signal of the other healthy protective relay device is transmitted through the photoelectric conversion device 45 and reliable. High power system protection control system can be realized.

The detailed structure of the photoelectric conversion device 45 is shown in FIG. 20, where 35 is a communication line of an optical cable, 451 is a main optical path of an optical multiple signal, 452, 453, 454, and 455 are branch optical paths, and 456 is a first optical path. A photoelectric conversion element for a wide frequency band, for example, an optical insert transmitting / receiving module having a light emitting leisure diode LD1, a light receiving port diode PD1, and an electrical signal terminal 456T, and a power converter 457 which is a DC / DC converter or the like. It is equipped with.

458 is a photoelectric conversion element for a second wide frequency band, for example, an optical sampling (SP) registered signal transmission / reception module having a light emitting leisure diode LD2, a light receiving port diode PD2, and battery signal terminals 458T1, 458T2. The power converter 459 which becomes a DC converter etc. is provided.

Reference numeral 460 denotes an electrical insulating space between the photoelectric conversion elements 456 and 458, and 461 is a mounting insulating member of the photoelectric conversion elements 456 and 458, and branch light paths 452 and 453, ( 454) and 455, which have mounting holes 4611, 4612, 4613, and 4614 facing each other. The mounting hole 4611 has a light emitting diode LD1, and the mounting hole 4612 has a light receiving port. The diode PD1 is detachably attached to the mounting hole 46130 in the photo light emitting diode LD2 and the mounting hole 4614 in the light receiving port diode PD2.

The power converter 457 and the power converter 459 are connected to an external power source having a different voltage through the connection terminals 457T and 459T, respectively.

In Fig. 1, the photoelectric conversion device 45 of Fig. 20 is connected to the input / output terminals of the relay devices (plates) 11 to 14 and the input terminals of the respective routers, and the electrical signal terminal 456T of each photoelectric conversion device 45 is connected. The electronic data signals of the corresponding relay devices (plates) 11 to 14 and the router are inputted and outputted. These input and output electronic data signals are converted by the photoelectric conversion element 456 to photoelectric conversion (the optical signals are converted into electrical signals and the electrical signals are converted into optical signals). The sampling synchronization signal is transmitted as an optical signal from the light-emitting laser diode LD2 by the electrical signal terminal 458T when the corresponding sampling synchronization signal source is in the corresponding relay device (plate), and the sampling synchronization signal source is sent to the corresponding relay device. If not, the optical sampling synchronization signal input to the receiving photodiode PO2 is supplied as an electrical signal from the electrical signal terminal 458T2 into the corresponding relay value (plate).

In addition, the frequency of the output light signal of the light emitting laser diodes LD1 and LD2 is set.

In other words, the optical data signal 300 (data signal in the relay device) 300 and the optical sampling synchronization signal 301 having different frequencies are transmitted to the main optical path 451 as shown in FIG.

Embodiment 52

Embodiment 52 allows the optical signal between each relay device 11 to 14 and each photoelectric conversion device 45 corresponding to each router to be a frequency multiplexed signal.

Accordingly, the transmission efficiency is more than doubled compared to the continuous signal system such as the conventional Internet and TCP / IP transmission system, and the reliability of the power system protection control system is greatly improved.

Embodiment 53

Embodiment 53 shows a photoelectric conversion device in which a synchronization signal for synchronizing between protection relay devices 11 to 14 and an electronic data signal in protection relay devices 11 to 14 correspond to each protection relay device 11 to 14. The frequency is different between (45).

Accordingly, there is no need to transfer the synchronization signal and the electronic data signal in the protection relay device in a series of continuous signals such as the conventional Ethernet and TCP / IP transmission methods, and the signal processing is simplified, the reliability is improved, and the reliability is high. High power system protection control system can be realized.

Embodiment 54

In the fifty-fourth embodiment, an ordinary data signal and an abnormality corresponding data signal are optical signals of different frequencies between the photoelectric conversion devices 45.

As a result, the transmission speed and signal processing of the corresponding data signal in case of abnormality are exceptional compared to the method of mixing the usual data signal and the corresponding data signal in case of abnormality among a series of continuous signals such as the conventional Ethernet and TCP / IP transmission methods. It is possible to realize a power system protection control system which is faster, and can perform an abnormal detection process and an abnormal process quickly.

That is, as shown in Fig. 21, the breaker trip signal and the breaker re-entry signal as the examples of the waveform data (data 1, data 2, data N-1), which are the usual data, and the corresponding data signals in case of the abnormality, among the recorded data at the time of accident Since (data 2, data 4, dataN) are different frequencies (f1 _, f2), the transmission speed and signal processing of the corresponding data signal in case of abnormality are significantly faster, and the power for exceptionally faster detection and abnormality processing A system protection control system can be realized.

In order to realize the present embodiment 54, the photoelectric conversion element 458 for the sampling synchronization signal shown in FIG. 20 is used as the photoelectric conversion element 456 for the relay devices (plates) 11 to 14, and one photoelectric conversion element is used. The converter 456 may be used for a normal data signal, and the other photoelectric converter 456 may be used for a corresponding data signal.

Embodiment 55

In the fifty-fifth embodiment of the present invention, as shown in FIG. 20, each photoelectric converter 45 includes an optical waveguide (optical paths 451, 452, 453, 454, 455, and an insulating member 456). ) And photoelectric conversion units LD1, LD2, PD1, PD2, 456, and 458 detachably attached to the optical waveguide.

Accordingly, when the electronic component of the photoelectric conversion element 456 is broken, only the photoelectric conversion unit needs to be replaced, and during the replacement period, signals of other protection ray devices or the like that do not correspond to the photoelectric conversion unit may be light waveguides. It can be transferred to other places through the system, and a reliable power system protection control system capable of minimizing the effects of failure of electronic components can be implemented.

Embodiment 56

In Embodiment 56, the photoelectric conversion section is composed of a plurality of photoelectric conversion elements 456, 456, and 458 corresponding to optical signals of different frequencies, and the plurality of photoelectric conversion elements are respectively provided with magnetic power sources 457, 457, 459) and at the same time are electrically isolated from each other. As a result, it is possible to realize a power system protection control system capable of receiving signals of different potentials, such as electronic data, synchronization signals, and output signals of electronic terminals in the protection relay device.

As described above, according to the present invention, a web browser equipped with a web server mounted in the protective relay device and a web browser for establishing a connection through a communication line are mounted, and the web browser is accommodated in the protective relay device using the web browser. Since the system state information is acquired, the state of the power system can be grasped without having a dedicated program mounted on the electronic terminal.

According to the present invention, since the system state information stored in the protection relay device is changed using a web browser, there is an effect that the system state information can be changed without mounting a dedicated program in the electronic terminal.

According to the present invention, a web browser which establishes a connection via a communication line with a web server mounted in a protective relay device is mounted, and the relay internal status information accommodated in the protective relay device is acquired using the web browser. In addition, it is configured to perform the life diagnosis of the protective relay device according to the internal status information of the relay, so that the on-site maintenance worker can diagnose the remaining life without going to the electric station and conducting the characteristic test, thereby reducing the labor cost. It works. In addition, since no human hands are required, lifespan diagnosis can be performed in a short cycle, and the reliability of the system can be maintained.

In addition, since the life diagnosis can be performed without stopping the protective relay device, the life diagnosis can be performed without being restricted by the system operation.

According to the present invention, since the electronic terminal is installed in at least one of the bases of the facility planning, control, maintenance, device development, device design, and device manufacturing of the protection relay device, the maintenance base or design production base, There is an effect that can perform the surface diagnosis of the protective relay device.

According to the present invention, a system for controlling a circuit breaker according to a circuit breaker operation command and outputting system phenomenon information indicating the control result, and an apparatus for performing operation determination of the system motel according to the system phenomenon information outputted by the system model. In addition to the system accident response, it is possible to perform verification including recovery control after the separation of the accident section in addition to the system accident response.

According to the present invention, since the operation determination result of the device model is configured to feed back to the system model, it is possible to perform verification, including recovery control after separation of an accident section, by applying the system accident response.

According to the present invention, since the system model is installed at the facility planning base and the device model is installed at the design and manufacturing base, the system model can be operated at the design and manufacturing base.

According to the present invention, the system is connected to a plurality of protective relay devices through a communication line, and when the system state information is acquired from the plurality of protection relay devices, the system state information is analyzed using an analysis frame and the analysis results are displayed. As a result, it is possible to eliminate the loss of cost and time due to the movement of maintenance workers and design engineers, so that even if a request for short-term analysis occurs, such as in a system accident, there is an effect of coping with the demand.

According to the present invention, since at least one of the waveform analysis, the vector analysis, and the frequency analysis is configured, the cause of an accident occurring in the power system can be accurately estimated.

According to the present invention, when the web relay is mounted on the protection relay device and the web browser is mounted on the electronic terminal, the electronic terminal uses the web browser to acquire system status information contained in the protection relay device. Since it is configured to do so, there is an effect that system status information can be acquired without mounting a dedicated program in an electronic terminal.

According to the present invention, when the analysis frame is housed in the protection relay device, the analysis frame is configured to be downloaded using a web browser, so that the analysis process can be executed without installing the analysis frame in advance in the electronic terminal. It works.

According to the present invention, since the software which enables access to the electronic data contained in the plurality of protection relay devices is mounted and the software is executed, the electronic data is acquired to monitor the plurality of protection relay devices. It is effective for maintenance workers and design engineers to accurately grasp the state of the protective relay device by contrasting their knowledge.

According to the present invention, the protection relay device is monitored through a communication line by an electronic terminal in at least one of the bases of facility planning, control, maintenance, device development, device design, and device fabrication. It is effective to grasp the state of the protective relay device.

According to the present invention, since the software for enabling access to the electronic data contained in the plurality of protection relay devices is mounted and the software is executed, the correction values of the plurality of protection relay devices are changed. It is effective that a quick response is possible.

According to the present invention, it is configured to change the correction value of the protective relay device through a communication line by an electronic terminal in at least one of the points of facility planning, control, maintenance, device development, device design, and device manufacturing. As a result, it is possible to respond quickly to changes in the system configuration.

According to the present invention, there is provided a software for enabling access to electronic data contained in a plurality of protective relay devices, and the software is executed to acquire the electronic data and to monitor the plurality of protective relay devices. And an electronic terminal on the device providing side for changing the correction values of the plurality of protective relay devices by mounting the electronic terminal and software for enabling access to the electronic data contained in the plurality of protective relay devices and executing the software. Since it is configured to have, the maintenance personnel or design technicians can accurately grasp the state of the protective relay device while inquiring with their knowledge, and at the same time, it is possible to quickly respond to changes in the system configuration.

In addition, since these software are downloaded to separate electronic terminals, there is an effect that the time required for download can be shortened.

According to the present invention, the electronic device of the apparatus providing side is provided with software for enabling access to electronic data contained in a plurality of protective relay devices, and executing or executing the software to set or update relay software of the plurality of protective relay devices. An electronic terminal on the power supply side that includes a terminal and software that enables access to electronic data contained in the plurality of protective relay devices, and executes the software to acquire the electronic data and monitor the plurality of protective relay devices. Since it is configured to have, the maintenance and design technicians do not go out to the site of the electric field, there is an effect that can quickly expand or change the function of the protective relay device.

According to the present invention, an electronic terminal in at least one of the bases of device development, device design, and device fabrication stores at least one electronic data, among drawings, manuals, years of manufacture and function overview, The electronic data is transmitted to an electronic terminal in at least one of the facilities planning, control, and maintenance points through a communication line, so that maintenance personnel can obtain the latest information as needed. have.

According to the present invention, an electronic terminal in at least one of the bases of device development, device design, and device fabrication stores at least one electronic data of the drawings, instructions, year of manufacture and function overview of the protection relay device. Of the equipment planning, control, and maintenance points, the electronic terminal in at least one of the bases is configured to read the electronic data through the communication line so that the maintenance staff can obtain appropriate body information when necessary. There is.

According to the present invention, an electronic terminal in at least one of the equipment planning, control, and maintenance points stores electronic data relating to the equipment planning including a protection relay device, and the electronic data is developed through a communication line. It is configured to transmit to the electronic terminal located in at least one base among the equipment design and device manufacturing bases. Therefore, the technician of the manufacturing company uses the electronic data on the equipment planning, and the appropriateness of the equipment protection regarding the protection relay device to be installed. There is an effect that can be verified.

According to the present invention, an electronic terminal in at least one of the equipment planning, control, and maintenance points stores electronic data related to the equipment planning including the protection relay device, and each device development, device design, and device manufacturing base. Among them, the electronic terminal in at least one base is configured to read the electronic data through the communication line, so that the design engineer of the manufacturing line uses the electronic data on the facility plan to provide the equipment protection for the protection relay body to be installed. There is an effect to verify the adequacy.

According to the present invention, an electronic terminal located in at least one of the bases of device development, device design, and device fabrication stores at least one electronic data of the drawings, manual, year of production, and function overview of the protection relay device. The electronic data is transmitted through a communication line to an electronic terminal in at least one base of facility planning, control, and maintenance, while at least one of each base of facility planning, control, and maintenance is transmitted. The electronic terminal stores the protection relay device with electronic data related to the facility plan and transmits the electronic data to the electronic terminal in at least one of the bases of device development, device design, and device fabrication through a communication line. Since it is comprised, it is effective to obtain the latest information appropriate as needed by a maintenance worker. In addition, there is an effect that the design engineer of the manufacturing company can verify the adequacy of the protection relay device to be installed by using the data on the facility plan.

According to the present invention, an electronic terminal in at least one of the bases of device development, device design, and device fabrication stores at least one electronic data among the drawings, manuals, production years, and functional summary of the protection relay device, An electronic terminal in at least one of the bases of planning, control, and maintenance reads the electronic data through a communication line, while an electronic terminal in at least one of the bases of facility planning, control, and maintenance is read. The terminal stores the electronic data related to the facility plan including the protective relay device, and the electronic terminal located in at least one of the bases of the device development, the device design, and the device production reads the electronic data through the communication line. Since it is configured so that maintenance personnel and the like can obtain the latest information appropriate when necessary. In addition, there is an effect that the design engineer of the manufacturing company can detect the adequacy of facility protection regarding the protection relay device to be installed by using the electronic data on the facility plan.

According to the present invention, since the electronic terminal selects a correction value table corresponding to a system condition from among a plurality of types of correction value tables, and changes the correction values of the plurality of protection relay devices, the correction value can be changed remotely. There is an effect to rationalize the maintenance fee.

In addition, when the system configuration changes, the correction value is automatically changed, whereby an incorrect setting by a human can be obtained. According to the present invention, an electronic terminal is installed in at least one of the bases of facility planning, control, maintenance, device development, device design, and device manufacturing, while a protection relay device is installed in an electric station. Since the correction value of the protective relay device is configured through this communication line, it is possible to rationalize the maintenance and repair as a result of changing the correction value at a remote location.

According to the present invention, since a plurality of types of correction table are prepared for each protection relay device, a new correction value can be obtained simply by selecting a correction table corresponding to the system configuration.

According to the present invention, since the storage device for storing the correction table is provided in the protection relay device, there is an effect that the electronic terminal does not need to secure the memory area for storing the correction table.

According to the present invention, since the storage device for storing the correction table is configured to be installed inside the protection relay device, there is an effect that the correction table of the plurality of protection relays can be collectively managed.

According to the present invention, a memory device for storing the correction table is provided inside and outside the protection relay, respectively, and when the communication line between the external storage device and the protection relay is normal, the correction table stored in the external storage device is stored. If the communication line is abnormal, the correction table stored in the internal storage device is selected so that the correction table of the plurality of protection relay devices can be collectively managed and appropriate even if a communication error occurs. This has the effect of selecting a correction table.

According to the present invention, since the operation history stored in the storage device of the protective relay device is read, the operation history can be reliably recorded without any recording of the operation history by the maintenance worker or any other operation. At the same time, by checking the operation history at the time of abnormality, the cause can be quickly identified.

According to the present invention, since the operation history stored in the storage device is read out using a web browser, there is an effect that the electronic terminal does not need to secure a memory area for storing the operation history.

According to the present invention, since at least the date of change of the correction value, the subject of change, the correction value before the change and the correction value after the change are stored as the operation history, the effect of recognizing the history of the operation regarding the change of the correction value in detail There is.

According to the present invention, since the system status information stored in the plurality of protection relay devices is read through the communication line, and the system status information is identified from the system status information, the system has dedicated hardware for identifying the failure point. Without fail, an electronic terminal such as a personal computer can be used to identify fault points of the system.

In addition, there is an effect that can determine the failure point of the system without stopping the relay plate.

According to the present invention, since a plurality of protection relay devices add the sampling time information to the system state information, the electronic terminal is configured to determine the fault point of the system by using the system state information at the same sampling time. There is an effect that can increase the degree of identification of.

According to the present invention, since the plurality of protection relay devices are configured to synchronize the sampling time of the system state information with each other, and the sampling time information is added to the system state information, the electronic terminal calculates the system state information at the same time. It is effective to determine the point of failure of the system.

According to the present invention, the first display area which displays the type of the screen prepared for the protection relay device and receives the display of the screen, and when the display of any screen among the plurality of types of screens is received, displays the screen. Since the second display area is configured to be set in another area on the same screen, it is possible to grasp the entire configuration of the relay operation maintenance screen and to easily identify which screen is currently displayed.

In addition, since the first display area is resident on the screen, the transition operation can be simplified to another screen.

According to the present invention, since the type of the display contents of the second display area is displayed on the first display area, it is possible to grasp the entire configuration of the relay operation maintenance screen and to determine which screen is currently displayed. There is an effect that can be easily identified.

According to the present invention, an electronic terminal is installed in at least one of the bases of facility planning, control, maintenance, device development, device design, and device manufacturing, and the electronic terminal takes electronic data stored in the protection relay device and displays screen contents. Since it is configured to display, there is an effect that can grasp the state of the protective relay device from a remote location.

According to the present invention, since the first display area is configured to be set on the left side of the second display area, the first display area is arranged in the same manner as the information rearranging screen of many other information terminals. It can be effective.

According to the present invention, since the display area of the second display area is set to be set wider than that of the first display area, there is an effect that the specific contents of the screen can be displayed in detail without impairing the operability of the transition operation of the screen. .

According to the present invention, since the third display area for displaying the type and state of the protection relay device is set in another area on the same screen as the first and second display areas, the protection relay device currently in communication with the electronic terminal is configured. As a result of recognizing the detailed information, the maintenance of the protection relay device can be performed accurately and effectively.

According to the present invention, a third display area for displaying the state of the protection relay device, the electric name provided with the protection relay device, and the name of the protection relay device is set in another area on the same screen as the first and second display areas. Since the present invention can be configured to recognize the information on the protection relay device in communication with the electronic terminal in detail, the maintenance of the protection relay device can be performed accurately and efficiently.

According to the present invention, since the third display area is configured to be set above or below the second display area, the information of the second display area and the information of the third display area can be displayed relatively. .

According to the present invention, since the display area of the second display area is set to be wider than the display area of the third display area, there is an effect that the specific contents of the second display area can be displayed in detail.

According to the present invention, a first display mode for displaying a first display area and a second display area on the same screen, or a second display area for displaying a second display area without displaying the first display area. Since the display is configured to display a selection screen for selecting either of the display modes, the screen configuration respecting the user's intention can be set.

According to the present invention, since the display mode selected by the selection screen is stored and the next selection screen is configured to focus on the display mode, the operation can be simplified.

According to the present invention, since the information on the display of the screen is stored in the protection relay device, and the electronic terminal is configured to obtain information on the display of the screen from the protection relay device through a communication line, the information on the display of the screen is displayed. There is an effect that it is not necessary to secure a memory area for storing the memory.

According to the present invention, the various screens displayed in the second display area include screens for changing the correction values of the protection relay device, and the electronic terminal receives the correction values when the correction values are received by the screens. Since the stationary device is configured to be changed, the correction value of the relay board can be changed on the screen displayed in the second display area.

According to the present invention, when a protective relay device is constructed by assembling a relay element corresponding to a system operation plan on a board, among the various relay elements, a relay element commonly used in a plurality of systems is assembled on a common board. On the other hand, since the relay element selectively used according to the system operation plan is configured to be assembled on a separate board, there is an effect that it is possible to simply build a protective relay device according to the system operation plan.

According to the present invention, the software of the relay element mounted on the protection relay device is configured to be downloaded to the protection relay device through the communication line from the software storage device in which the software of the relay element is stored. There is an effect that the software of the relay element required by the relay board after the plan change can be mounted without changing the software.

According to the present invention, upon receiving the system operation plan information from at least one of the bases of facility planning, control, maintenance, device development, device design, and device manufacturing, the software of the necessary relay element is selected according to the system operation plan information. In addition, since the software is configured to be downloaded to the protection relay device via a communication line, there is an effect that the software corresponding to the system operation planning information can be easily introduced.

According to the present invention, the system operation plan information generated at at least one of the bases of facility planning, control, maintenance, device development, device design, and device manufacturing is read out through a communication line at the design production point of the protection relay device. Since it is configured to, the software corresponding to the system operation planning information can be easily introduced.

According to the present invention, since relay designation information is configured to be used as the system operation plan information, there is an effect that the relay board to be changed according to the plan change and the software of the relay element required by the relay board can be easily designated.

According to the present invention, since the software storage device is configured to be installed in at least one of each base of facility planning, control, and maintenance, the software of the relay element can be easily managed.

According to the present invention is configured to accept the expansion of the input unit or the CPU unit according to the system operation plan information, there is an effect that can easily build the system configuration according to the system operation plan.

According to the present invention, since the electronic data in each protection relay device of the electronic terminal is displayed in parallel in different areas on the same screen, the system states of the plurality of electric stations and the states of the protection relay devices can be easily compared, which facilitates their states. You can see the effect.

According to the present invention, since the electronic terminal is configured to display the electronic data of other relay elements in the protection relay device in parallel in different areas on the same screen, the states of a plurality of protection relay devices can be easily compared, so that their states can be easily confirmed. It has an effect.

According to the present invention, since the electronic terminal is configured to display the electronic data of the existing relay element in the protection relay device and the electronic data of the additional relay element in the protection relay device in parallel in different areas on the same screen, the system state of the electric station and the protection relay device Since the states can be easily compared to include additional relay elements, there is an effect that can easily check their state.

According to the present invention, since the electronic terminal is configured to display the electronic data in the feeder protection relay device and the electronic data in the transformer protection relay device in parallel in different areas on the same screen, the state of the feeder protection relay device and the state of the transformer protection relay device are determined. Since it can be compared easily, there is an effect that can easily confirm their state.

According to the present invention, since the electronic data is displayed in parallel, at least one of the type of the relay and the type of the electric station is displayed together, there is an effect that it is possible to confirm the state of the relay device of which electric station.

According to the present invention, since the method of displaying electronic data is configured to be different from the case where the corresponding protection control object is normal and the case that is not normal, the contents of the states of the relay devices displayed in parallel are not tracked and checked one by one, and the normal operation is not performed. If not, the effect can be seen at a glance.

According to the present invention, since the color of the electronic data or the screen displayed in parallel is configured to be different from the case where the corresponding protection control object is normal and not normal, the contents of the state of each relay device displayed in parallel are not checked one by one. It is effective to check the display when it is not normal.

According to the present invention, since the electronic data displayed in parallel is configured to be displayed in color priority when the corresponding protection control object is not normal, the contents of the state of each relay device displayed in parallel are not checked one by one. In addition, there is an effect of confirming the display when it is not normal at first glance.

According to the present invention, when each protection control object is normal, the corresponding electronic data is displayed in parallel, and when any one of the protection control objects is not normal, the electronic data is displayed in preference to the electronic data of the protection control object that is normal. Since it is configured to, it is possible to quickly check the contents of the electronic data when it is not normal.

According to the present invention, when at least one of the protection control target and the protection relay device is not normal, the corresponding electronic data is configured to be displayed in preference to the electronic data corresponding to the normal protection control target and the protection relay device. If not, there is an effect that can quickly check the contents of the electronic data.

According to the present invention, when at least one of the protection control object and the protection relay device is not normal, the corresponding electronic data is configured to be displayed on the initial screen of the electronic terminal. Therefore, the contents of the electronic data when the normality is not normal are quickly confirmed. It can be effective.

According to the present invention, since a plurality of relay elements constituting the protective relay device are individually unitized, and each of these united relay elements is individually connected to a hub, the addition and replacement of the relay element is In this case, only the corresponding relay element can be easily and at low cost.

According to the present invention, since the connection method between the relay element and the hub is a plug-in connection method, the addition and replacement of the relay element can be performed easily and in a short time.

According to the present invention, an additional connection terminal for adding a relay element is provided in the hub, and the additional connection terminal is configured to be connected to the electronic terminal in advance, so that the additional relay is merely connected to the additional connection terminal. There is an effect that the electronic data of the element is displayed on the screen of the electronic terminal.

According to the present invention, since the electronic data of the existing relay element and the idler data of the non-additional relay element are configured to be displayed in another area on the same screen of the electronic terminal, it is easy to judge whether the relay element is added or not. There is.

According to the present invention, since the photoelectric conversion device and the protection relay device and the photoelectric conversion device and the electronic terminal are housed with an electric signal, the photoelectric conversion device and the photoelectric conversion device are housed with an optical signal. Even if an abnormality occurs in the electrical signal transmission system of the protective relay device, the electrical signal of the protective relay device is transmitted through the photoelectric conversion device, thereby achieving a highly reliable power system protection control system.

According to the present invention, since the optical signal between the photoelectric conversion device and the photoelectric conversion device is configured to be a frequency multiplex signal, the transmission efficiency is more than doubled compared to continuous signal methods such as the conventional Internet and TCP / IP transmission methods, and thus the power system. The reliability of the protection control system is greatly improved.

According to the present invention, the synchronization signal for synchronizing between the protection relay devices and the electronic data signal in the protection relay device are configured to have different frequencies between the photoelectric conversion device and the photoelectric conversion device. Since the synchronization signal and the electronic data signal in the protection relay device do not need to be mixed and transmitted among a series of continuous signals, signal processing is simplified, reliability is improved, and a highly reliable power system protection control system can be realized.

According to the present invention, since the usual data signal and the abnormality corresponding data signal are configured to have different frequencies between the photoelectric conversion device and the photoelectric conversion device, the normal data signal is normally used in a series of continuous signals such as the Internet and the TCP / IP transmission method. Compared to the method of mixing the data signal with the corresponding data signal in case of abnormality, the transmission speed and signal processing of the corresponding data signal in case of abnormality are significantly faster, and the power system protection control that can speed up the abnormality detection process and the abnormality process. The effect is that the system can be realized.

According to the present invention, each photoelectric conversion device is composed of an optical waveguide and a photoelectric conversion section detachably mounted to the optical waveguide. Therefore, when an electronic component fails, only the photoelectric conversion section needs to be replaced. Signals from other protection relays, etc., which do not correspond to the conversion unit are transmitted to other places via the optical waveguide, and a highly reliable power system protection control system that can minimize the effects of failure of electronic components can be realized. It has an effect.

According to the present invention, since the photoelectric conversion unit is composed of a plurality of photoelectric conversion elements corresponding to optical signals of different frequencies, and the plurality of photoelectric conversion elements have a magnetic power source and are electrically insulated from each other, the electrons in the protection relay device There is an effect that a power system protection control system capable of receiving signals of different potentials, such as data, synchronization signals, and output signals of electronic terminals, can be realized.

Claims (20)

Web browser function, which is a monitoring and control device provided in at least one of a power supply base and a device providing base equipped with a plurality of protection relay devices equipped with hardware and software providing web server functions and information storage functions respectively installed in a plurality of electric stations. And an electronic terminal equipped with hardware and software for providing a signal, and a looper that is an interface between the protective relay device and the outside of the electronic terminal, wherein the plurality of protective relay devices and the electronic terminal are connected through a communication line. And the electronic terminal accesses the protection relay device through the interface to obtain state information stored in the information storage device. delete The power system protection control system according to claim 1, wherein the state information is relay internal state information, and the electronic terminal performs life diagnosis of the protection relay device according to the degree of internal state of the relay. The system of claim 1, wherein the protection relay device controls the circuit breaker according to the circuit breaker operation command, and outputs system phenomenon information indicating the control result, and the system according to the system phenomenon information outputted by the system model. A power system protection control system, comprising a device model for performing the operation determination of the model. The power system protection control system according to claim 1, wherein the state information is system state information, and the electronic terminal interprets the system state information and displays a result. The power system protection control system according to claim 1, wherein the electronic terminal acquires the state information and monitors the plurality of protection relay devices. The power system protection control system according to claim 1, wherein the electronic terminal acquires the state information and changes correction values of the plurality of protection relay devices. 2. The terminal of claim 1, wherein the electronic terminal of the power supply-side base acquires the status information to monitor the plurality of protection relay devices, and the electronic terminal of the device-providing base acquires the status information to determine the protection relay device. Power system protection control system, characterized in that for changing the politics. The electronic terminal of claim 1, wherein the electronic terminal of the power supply-side base acquires the status information and monitors a protection relay device, and the electronic terminal of the device-providing base acquires the status information to set or update relay software. Power system protection control system characterized in that. The protection relay device according to claim 1, wherein the protection relay device is equipped with a CPU for controlling the breaker on the basis of the correction value stored in the recording device, and recording various operation histories in the storage device. A power system protection control system, characterized in that for reading the operation history stored in the storage device of the device. The power system protection control system according to claim 1, wherein the electronic terminal identifies a fault point of the system from the state information. The display device of claim 1, wherein the electronic terminal displays a first display area that displays a type of a screen prepared for the protective relay device and accepts the display of the screen, and displays an arbitrary screen among a plurality of types of screens. Is set, the second display area for displaying the screen is set in another area on the same screen. According to claim 1, Relay elements commonly used in a plurality of systems of the various relay elements corresponding to the system operation plan incorporated on the substrate by the protective relay device is incorporated on a common substrate, according to the system operation plan The power system protection control system, characterized in that the relay element optionally used is incorporated on a separate substrate. The power system protection control system according to claim 1, wherein the electronic terminal displays the electronic data in the protection relay device in parallel in different areas on the same screen. The power system protection control system according to claim 1, wherein the electronic terminal displays electronic data of different relay elements in the protection relay device in parallel on different areas of the same screen. The electronic terminal of claim 1, wherein the electronic terminal displays electronic data of an existing relay element in the protective relay device and electronic data of an additional relay element of the protective relay device in different areas on the same screen. Power system protection control system. The protection relay device according to claim 1, wherein the protection relay device is a Peter protection relay device and a transformer protection relay device, wherein the electronic terminal comprises electronic data in the Peter protection relay device and electronic data in the transformer protection relay device different from each other on the same screen. Power system protection control system, characterized in that the display in parallel to the area. 2. The method according to claim 1, wherein if at least one of the protection control object and the protection relay device is not normal, the electronic terminal preferentially displays the corresponding electronic data in preference to the electronic data corresponding to the normal protection control object and the protection relay device. Power system protection control system characterized in that. The electronic terminal of claim 1, wherein the electronic terminal acquires the status information via a hub, and a plurality of relay elements constituting the protective relay device are individually united, and each of the unitized relay elements is individually Power system protection control system, characterized in that connected to the hub. The electronic device of claim 1, further comprising a photoelectric conversion device connected to each of the protective relay devices and the electronic terminal, wherein the photoelectric conversion device is connected to the protective relay device and between the photoelectric conversion device and the electronic terminal. A power system protection control system, characterized in that while transmitting and receiving a signal, the photoelectric conversion device and the photoelectric conversion device as an optical signal.