JPH08168173A - Power system simulation test equipment - Google Patents

Abstract

PURPOSE: To test an electric unit reliably by a single operator by inputting a simulation test signal to the electric unit depending on the content of input to an operating section, taking in a response signal of the electric unit to the simulation test signal, and then deciding whether the electric unit responded well or not. CONSTITUTION: The operating section 8 of a power system simulation test equipment 2 is operated and a simulation signal for an electric unit 1 is applied through a control section 6 and a contact output interface section 5 to a contact I/O circuit 4. An internal control circuit 3 delivers an operation display output to a display circuit 18 in response to the input simulation signal. On the other hand, I/O information from the contact I/O interface section 5 and information corresponding to the response from the electric unit 1 are inputted sequentially from the operating section to a memory section 7. The output information to the contact I/O interface section 5 is compared with the response information of the electric unit 1 at the control section 6 in order to decide whether the electric unit 1 responded correctly or not and the decision results are presented on a display section 9 and stored in the memory section 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power system simulation test device for testing an electric device such as a switchboard.

[0002]

2. Description of the Related Art Conventionally, since a sequence test of an electric device requires manpower, it is desired to develop a new test device for labor saving.

Conventionally, as shown in FIG. 5, an electric device 1 such as a switchboard is provided with a display circuit 18 provided on a front operation panel or the like, and control is performed to display internal failure information or the like on the display circuit 18. In addition to the internal control circuit 3, the contact input / output circuit 4 which is an input / output interface for an external simulation test, the operation circuit 19 for operating the internal control circuit 3,
A power system, that is, a circuit breaker, a disconnector, etc. is complicatedly incorporated, and when a simulated test signal is applied to the contact input / output circuit 4 by human work, the related control signal is output from the internal control circuit 3 to the operation panel. Is output to the display circuit 18 to notify a failure alarm or the like.

By the way, the contact input / output circuit 4 of the switchboard is
Since it is not used for normal operation, many terminal blocks are provided in the cover on the back surface of the switchboard.

On the other hand, an operation indicator lamp and an operation indicator of the display circuit 18 for lighting a failure alarm are provided on the front surface of the electric device 1 so as to be visible from the front of the electric device 1. Therefore, in order to perform the test of the electric device 1, at least one tester A turns to the back side of the electric device 1 to open the cover, and simulates a short circuit or an opening to the terminal block of the contact input / output circuit 4. It is necessary for the other tester B to visually check the operation indicator lamp, the operation indicator and the like from the front of the electric device 1 by performing the test work. In this work, it is necessary to confirm the response of the electric device 1 for each test. In order to carry out all of this confirmation, it is necessary to repeat the above-mentioned simulated test operation for a plurality of contacts.

However, if such a test is performed, at least two testers will be involved in the test, and it is not possible for one person to perform simulated input from the outside and check the operation of the electric device.

[0007]

As described above, in the above-described conventional method for testing an electric device, a tester who performs a test operation on the electric device and a test for confirming the display of the electric device according to the test operation. Multiple test personnel with staff are required.

[0008] Further, there is a trouble that the same simulation or operation must be repeated for the number of external inputs or the number of device operations.

Further, the display form of the operation output of the electric device is also
Not only simple indicators and mechanical indicators, but in the future it may be displayed in images, etc., so checking the displayed contents only with the eyes of the tester may result in omission of confirmation or misidentification. There was a problem.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a power system simulation test device capable of reliably testing an electric device by one person.

[0011]

According to a first aspect of the present invention, there is provided a power system simulation test device for testing the operating state of an electric device in order to achieve the above object. An operation unit for performing an input operation of test information, and inputting a simulated test signal to the electric device according to the content of the operation input by the operation unit,
The electronic device further includes a control unit that receives a response signal of the electric device with respect to the simulated test signal and determines whether the response of the electric device is good or bad, and a display unit that displays a result determined by the control unit.

A power system simulation test apparatus according to a second aspect of the present invention is the power system simulation test apparatus according to the first aspect, further comprising a storage unit that stores the result determined by the control unit and the operation content. There is.

The power system simulation test apparatus according to a third aspect of the present invention is a power system simulation test apparatus for testing the operating state of an electric device, which is arranged in the vicinity of the electric device and inputs a simulation test signal to the electric device. At the same time, a terminal unit for receiving a response signal of the electric device with respect to the simulated test signal and a position separated from the electric device and the terminal unit are provided, and the terminal unit is remotely operated via a predetermined communication unit. , A remote control unit for determining whether the response of the electric device is good or not based on the response signal taken in by the terminal unit and displaying the determination result.

The power system simulation test apparatus according to a fourth aspect is the power system simulation test apparatus according to the third aspect, wherein the communication means is a local area network.

[0015]

According to the first aspect of the invention, when the simulated test input to the electric device is input from the operation unit, the control unit inputs the simulated test signal to the electric device. When a response signal to this input is output from the electric device, the control unit determines whether the response of the electric device is good or not based on the response signal, and the result is displayed on the display unit.

At this time, the control unit compares the reference information input from the operation unit to the storage unit with the response information from the electric device to determine whether the response of the electric device is good or bad. There is no misidentification or mistake like humans.

As a result, one tester can reliably test the electric device.

According to the second aspect of the invention, the test result and the operation content are stored in the storage unit. Therefore, it is possible to easily and repeatedly perform the test using the stored data.

Further, according to the invention of claim 3, the remote control unit is arranged at a position distant from the electric device and the terminal unit, and the tester operates the remote control unit so that the terminal unit is operated by the electric device. Of the response signal is transmitted to the remote control unit via a predetermined communication means.

Thus, the tester can surely perform the simulated test of the electric device even from a place away from the electric device (device under test).

Further, in the invention according to the fourth aspect, the simulation test for the electric device is performed from the remote control unit through the local area network.

Thus, within the range of the local area network, one tester can surely perform the simulated test of the electric device.

[0023]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the configuration of a power system simulation test apparatus according to the first embodiment of the present invention.

In the figure, reference numeral 1 is an electric device such as a switchboard. The electric device 1 includes a display circuit 18 for performing display control of an operation indicator lamp and an operation indicator provided on a front operation panel, and an internal control circuit 3 for outputting failure information inside the device to the display circuit 18. , A contact input / output circuit 4 which is an input / output interface with the outside provided on the operation panel, an operation circuit 19 for inputting operation conditions to the internal control circuit 3, and the like, and the operation conditions are input from the operation circuit 19. In this case, when a simulated contact signal or the like is applied from the outside, a related contact signal is output from the internal control circuit 3 to the contact input / output circuit 4.

Reference numeral 2 is a power system simulation test device. The power system simulation test device 2 is connected to the contact input / output circuit 4 of the electric device 1 at the time of a test, and applies a simulated contact test signal and a contact input / output interface 5 that receives a contact output from the contact input / output circuit 4. , Power system simulation test device 2
An operation unit 8 for operating the device from the outside, a display unit 9 for displaying the result of the operation confirmation and the contents of the simulated test (contact test contents) to the contact input / output interface 5, and the electric device 1 for the input of the simulated signal. Determine whether the response is correct,
Further, the contents of the simulation test input from the control unit 6 for controlling the entire apparatus and the operation unit 8 are stored, and the electric device 1
The storage unit 7 stores information input and output to and from the external storage unit 11, and an external storage interface 10 for exchanging data.

Next, the operation of the power system simulation test device 2 will be described.

In the case of this power system simulation test device 2, when a tester conducts a sequence test of the electric device 1,
First, the contact input / output interface 4 of the electric power system is connected to the contact input / output circuit 4 of the electric device 1. At this time, since the output of the operation display output corresponding to each individual contact input signal is known in advance, the contact input / output circuit 4 and the contact input / output interface 5 of the electric device 1 are made to correspond to each other.

After connecting the interfaces to each other, the tester operates the operation unit 8 of the power system simulation test device 2 to input an external contact to the electric device 1 (simulation information).
Is input, the simulated signal is applied to the contact input / output circuit 4 of the electric device 1 through the control unit 6 and the contact output interface 5.

Then, in response to the input of this simulated signal,
The operation control output is processed by the internal control circuit 3 of the electric device 1 and is comprehensively combined with other conditions to display the display circuit 1.
8 is output.

On the other hand, the input / output information of the contact input / output interface 5 and the correspondence information of the response of the electric device 1 are sequentially input to the storage unit 7 from the operation unit 8, and the output information to the contact input / output interface 5 and the electric information are stored. The control unit 6 compares the response information of the device.

Based on this comparison, the control unit 6 determines whether or not the response of the electric device 1 is correct, and the determination result is output to the display unit 9 and is sequentially stored in the storage unit 7.

Therefore, the tester can confirm the simulated test result by viewing the display contents of the display unit 9.
Further, since the data is stored in the storage unit 7, the storage unit 7
You can repeat the test as many times as you like.

The input / output information of the test and the test contents are also output to the external storage unit 11 through the external storage interface 10. In this external storage unit 11, it is also possible to store the information stored in advance in the storage unit 7 or to change the content of the storage and to store it again.

On the other hand, when an input is applied from the operation circuit 19 of the electric device 1, a related contact signal from the internal control circuit 3 of the electric device 1 is controlled by the electric power system simulation test device 2 through the contact input / output circuit 4. It is taken into the part 6.

In the control section 6, based on this contact input signal,
It is determined whether the contact input is correct. This determination result is output to the display unit 9, the storage unit 7, and the external storage unit 11, similarly to the operation display output.

As described above, according to the power system simulation test device of the first embodiment, the contact input / output interface 5 of the power system simulation test device 2 is connected to the contact input / output circuit 4 of the electric device 1, and the operation unit 8 is provided. Since the test result is displayed on the display unit 9 by performing the simulated test operation, the test of the electric device 1 conventionally performed by a plurality of testers can be accurately performed by one tester alone.

The control unit 6 automatically determines the result of the simulation test based on the display output obtained from the electric device 1 and the determination standard stored in advance in the storage unit 7, and the result is displayed on the display unit 9. Since it is displayed and stored in the storage unit 7, the contents of the simulation test and the test results can be confirmed without error.

Further, since the contents of the test and the test results are stored in the storage unit 7 one after another, the contents of the same sequence test can be surely and repeatedly executed. In addition, once in the storage unit 7,
If the basic test contents are stored, different tests can be easily performed by changing the data even if the tests vary. For example, it is easy to repeatedly confirm the difference in the response state of the electric device to the input by changing the timing of inputting the data. In addition, when there are many operation check points, it is laborious for the tester to check each of the points one by one, so there is a possibility of misunderstanding. In addition, once set, the reproduction test can be performed accurately as many times as necessary.

Next, a power system simulation test device according to a second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a diagram showing the configuration of a power system simulation test device according to a second embodiment of the present invention.

As shown in the figure, the electric power system simulation test apparatus 20 is roughly composed of a terminal section 21 and a remote control section 22.

The terminal unit 21 includes a contact input / output interface 5, a storage unit 7, a communication interface unit 25 for connecting the terminal unit 21 and the remote control unit 22 with communication devices 23 and 24, and a control unit for controlling these. 26, etc., and is disposed in the vicinity of the electric device 1 or inside the electric device 1. The control unit 26 performs partial control of each unit of the terminal unit 21.

On the other hand, the remote control unit 22 has a communication interface unit 27 for connecting to the terminal unit 21, an operation unit 8,
The display unit 9, the external storage interface 10, the external storage unit 11, and the control unit 28 that controls these and controls the entire device and performs operation determination are included, and are separated from the electric device 1 and the terminal unit 21. It is located at a position, for example, a central control room.

In the power system simulation test device of the second embodiment, the remote operation of the terminal unit 21 is performed from the operation unit 8 of the remote control unit 22. The tester operates the operation unit 8.

In this case, when a tester operates the operation unit 8, the contents of the operation are analyzed by the control unit 28, and a signal (test signal) for the simulation test is generated. This test signal is sent from the control unit 28 to the communication interface unit 25 of the terminal unit 21 through the communication interface 27 and the communication devices 23 and 24.

On the other hand, even when some information is input from the operation circuit 19 of the electric device 1, a related contact signal is input from the internal control circuit 3 of the electric device 1 via the contact input / output circuit 4 and the contact input / output interface 5. It is taken into the control unit 26.

This contact signal is also controlled by the control unit 26 via the communication interface unit 25, the communication devices 23 and 24, and the communication interface unit 27 of the remote control unit 22 together with the information stored in the storage unit 7 as described above. Part 28
The control unit 28 determines whether or not the response of the electric device 1 is correct, and the determination result is output to the display unit 9 and stored in the external storage unit 11 and the storage unit 7.
Other operations are the same as those of the power system simulation test device 2 of the first embodiment.

According to the power system simulation test device of the second embodiment, the terminal portion 21 is provided in the contact input / output circuit 4 of the electric device 1.
If the remote control unit 22 is connected to the electric device 1, the remote control unit 22 is installed in a place away from the electric device 1, for example, in a central control room, and the tester operates the operation unit 8 of the remote control unit 22 to operate the electric device. Simulated tests such as various sequence tests in 1 can be surely performed.

Next, a power system simulation test device according to a third embodiment of the present invention will be described. FIG. 3 is a diagram showing the configuration of the power system simulation test device of the third embodiment.

As shown in the figure, this power system simulation test device 30 is a LAN of the electric device 1 instead of the contact input / output interface of the power system simulation test device 2 of the first embodiment.
L directly connected to 31 for exchanging signals with the electric device 1
AN interface 32 and power system simulation test device 3
0 from the outside, a display unit 9 for displaying the result of the operation confirmation and the contents of the output simulation of the LAN interface 32, and it is determined whether or not the response of the electric device 1 to the simulated input is correct. And a control unit 33 for controlling the whole
And a storage unit 7 for storing input / output information and test contents
And an external storage interface 10 for exchanging data with the external storage unit 11. In the case of this power system simulation test device 30, signal exchange with the electric device 1 is performed via the LAN 31 and the LAN interface 32. The other operation is the same as that of the power system simulation test device 2 of the first embodiment.

Therefore, one tester can perform a sequence test or the like on the distant electric device 1 within the range of the LAN 31.

According to the electric power system simulation test apparatus of the third embodiment, since the electric device 1 and the electric power system simulation test apparatus 30 are connected to each other by the LAN 31, only one tester for the electric device 1 in the distance. It is possible to carry out simulated tests such as sequence tests.

Next, a power system simulation test device according to a fourth embodiment of the present invention will be described. FIG. 4 is a diagram showing the configuration of the power system simulation test device of the fourth embodiment.

As shown in the figure, this power system simulation test device 40 is similar to the power system simulation test device 30 of the third embodiment.
In the same manner as in the second embodiment, the electric device 1 is arranged at a distance and the tester and the test device are separated from each other.

The power system simulation test device 40 is roughly composed of a terminal section 41 and a remote control section 42.
The terminal unit 41 includes the LAN interface 32 and the storage unit 7.
And the communication devices 23 and 24 between itself and the remote control unit 42.
The communication interface unit 25 is connected with the control unit 43 and the control unit 43 for controlling them.

On the other hand, the remote control section 42 includes a communication interface section 27 for connecting to the terminal section 41, an operating section 8,
It includes a display unit 9, an external storage interface 10, an external storage unit 11, and a control unit 44 that controls these and controls the entire device and determines an operation.

In the case of this power system simulation test device, the LAN interface 32 of the terminal unit 41 is the LA of the electric device 1.
Connect to N31. The operation of the terminal unit 41 is performed by the remote control unit 42.
The operation signal is transmitted from the control unit 43 to the communication interface 25, and the communication devices 23, 24
Is sent to the communication interface unit 27 of the remote control unit 42.

When an input is applied from the operation circuit 19 in the electric device 1, a relevant signal from the internal control circuit 3 of the electric device 1 is taken into the LAN interface 32 via the LAN 31. This signal is also sent to the control unit 44 of the remote control unit 42 via the communication interface unit 25, the communication devices 23 and 24, and the communication interface unit 27 together with the information stored in the storage unit 7 via the control unit 44 in the same manner as above. It is transmitted, it is determined whether the response of the electric device 1 is correct,
The determination result is displayed on the display unit 9 and stored in the external storage unit 11 and the storage unit 7. Other operations are the same as those of the power system simulation test device 30 of the third embodiment.

As described above, according to the power system simulation test device of the fourth embodiment, the LAN 31 of the electric device 1 is connected to the LAN interface 17 of the terminal portion 41, and the communication device 23 is connected through the terminal portion 41. Since the remote control unit 42 is operated through 24, in addition to the effect of the third embodiment,
The tester can accurately perform the sequence test of the electric device 1 from a place further away from the range of the LAN 31 of the electric device 1.

It is also conceivable to use a communication satellite or the like in order to carry out a simulation test of the electric device 1 within a wider range.

[0061]

As described above, according to the present invention, when a simulated test input for an electric device is input from the operating section, a simulated test signal is input to the electric device, and a response signal to this input is sent from the electric device. Based on this, the control unit judges whether the response of the electric device is good or bad based on this, and the judgment result is displayed on the display unit, so there is no need to watch the indicator lamp etc. on the front of the electric device, and only one tester The electric device can be reliably tested.

Further, since the test result is stored in the storage unit, it is possible to easily and repeatedly test the stored data using the stored data.

Furthermore, since the remote control section and the terminal section are connected to each other via a predetermined communication means at a position apart from each other, a test for an electric device (device under test) can be performed by an operation from the remote control unit. The tester can surely perform a simulated test of the electric device even from a place away from the device under test).

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a power system simulation test device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a power system simulation test device according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a power system simulation test device according to a third embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a power system simulation test device according to a fourth embodiment of the present invention.

FIG. 5 is a diagram showing a conventional sequence test method for an electric device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electrical device, 2, 20, 30, 40 ... Electric power system simulation test device, 3 ... Internal control circuit, 4 ... Contact input / output circuit, 5 ...
Contact input / output interface, 6 ... Control unit, 7 ... Storage unit, 8 ... Operation unit, 9 ... Display unit, 10 ... External storage interface, 11 ... External storage unit, 18 ... Display circuit, 19 ...
Operation circuit, 21 ... Terminal unit, 22 ... Remote control unit, 23, 2
4 ... communication device, 25, 27 ... communication interface section,
31 ... LAN, 32 ... LAN interface, A, B
… Examiner.

Claims (4)

[Claims] 1. An electric power system simulation test apparatus for testing an operating state of an electric device, wherein an operation unit for performing an input operation of simulation test information for the electric device, and an operation unit according to an input operation of the operation unit. While inputting a simulated test signal to the electric device, a response signal of the electric device to the simulated test signal is taken in, a control unit that determines whether the response of the electric device is good or bad, and a result determined by the control unit is displayed. An electric power system simulation test device comprising: 2. The power system simulation test apparatus according to claim 1, further comprising a storage unit that stores a result determined by the control unit and operation content. 3. A power system simulation test device for testing an operating state of an electric device, wherein the electric device is disposed in the vicinity of the electric device, inputs a simulation test signal to the electric device, and receives the simulation test signal. And a terminal unit for receiving the response signal of the device, the electric device and the terminal unit being disposed at a position separated from the terminal unit, and the terminal unit is remotely operated through a predetermined communication unit, and the response signal captured by the terminal unit is A power system simulation test device, comprising: a remote control unit that determines whether the response of the electric device is good or bad based on the determination result and displays the determination result. As a result, it is possible to confirm the operation of the electric device from a place away from the device under test. 4. The electric power system simulation test apparatus according to claim 3, wherein the communication unit is a local area network.