KR100885629B1 - Power equipment tester and power equipment test system - Google Patents

Abstract

A power equipment simulation apparatus and a power equipment simulation system are provided to consult convenience of a user by simulating efficiently a normal operation of a power equipment control without installing actual spot equipment. A power equipment simulation apparatus includes an input unit(110), a control unit(120), and an output unit(130). The input unit receives a signal from a power equipment control unit for controlling an operation of actual spot equipment. The control unit generates an actual spot equipment state signal corresponding to an input signal. The output unit inspects a normal operation state of the power equipment control unit by feeding back the generated signal to the power equipment control unit.

Description

Power Equipment Simulation Tester and Power Equipment Simulation Test System {POWER EQUIPMENT TESTER AND POWER EQUIPMENT TEST SYSTEM}

The present invention relates to a power equipment simulation tester and a power equipment simulation test system, and more particularly, to check whether the power equipment control unit including the digital scaled-down micro switchgear and the field information processing panel is operated normally without directly constructing the field equipment. Power equipment simulation tester and power equipment simulation test system.

In general, in the process of supplying the power generated by the power plant to the customer, it is necessary to step up or step down the voltage in several stages, and also to concentrate or distribute the power transmission power. In addition to these roles, substations play an important role in protecting voltage variation and regulation, power concentration and distribution, power flow control, transmission and distribution lines and installations in substations.

Electric power equipment is widely distributed and exposed to natural disasters, and it is not only easy to put the equipment at risk due to overload, but also the accident of the equipment itself is likely to occur. In preparation for such a situation, various protection devices are installed in substations to protect transmission and distribution lines and substations.

In case of failure of short circuit ground in the field equipment, the equipment such as breaker is needed to cut off the large current to protect the equipment. In addition, there is a need for a facility for monitoring a device such as a circuit breaker in the field to operate without failure, transmitting a control signal, and checking a history state.

As a result, digital miniature mosaic switchboards are being operated to operate the monitoring, control and measurement functions of the substation's main facilities through a communication method. Digital miniature switchgear performs functions such as monitoring and control of field facilities through communication with field information processing board.

On the other hand, such a digital miniature switchgear is connected to the on-site information processing panel through a communication line, the on-site information processing panel can be directly connected to the on-site equipment to check whether the on-site equipment is abnormal. However, the digital miniature switchgear and the on-site information processing unit have a problem that can not be specifically monitored or controlled even if there is an abnormality in the field facilities in a situation that does not operate normally.

The present invention has been made to solve the above-mentioned problems, the present invention is a power that can simulate the normal operation of the power equipment control unit including a digital reduced-type micro distribution panel and field information processing panel even if the field equipment is not directly built The purpose is to provide a facility simulation tester and a power facility simulation test system.

Power equipment simulation tester according to an embodiment of the present invention for achieving the above object, the input unit for receiving a signal from the power equipment control unit for controlling the operation of the field equipment, the field equipment state corresponding to the input signal And a control unit for generating a signal, and an output unit for feeding back the generated signal to the power facility control unit and checking whether the power facility control unit is normally operated.

In this case, the display unit may display whether the signal input / output operation is normally performed.

At this time, the control unit, if any of the plurality of keys provided in the power equipment control unit is selected, and when a control signal corresponding to the selected key is input, the control unit generates a field equipment status signal for turning on or off the selected key; One mode, a second mode in which one of two keys operating in pairs is selected to generate a field facility status signal for turning on or off each of the selected and unselected keys when a control signal corresponding to the selected key is input; When a mode key for executing a particular mode is selected from among the plurality of keys and a control signal corresponding to the mode key is input, a status signal for turning on or off the keys corresponding to the field devices operating in the specific mode is provided. When the third mode to be generated and one of the tap up key and the tap down key are selected, a state for turning on or off the tap change key It may operate in at least one of the fourth mode, which generates a signal.

The controller may operate in a fifth mode for generating a field equipment status signal for blinking an output device included in the power equipment controller at a predetermined cycle even if a signal is not input to the input unit.

Here, the power equipment control unit includes a digital miniature switchgear and a field information processing panel, and the field equipment may be at least one of a breaker, a disconnector, and a tap.

The power equipment simulation test system according to another embodiment of the present invention, the power equipment control unit for controlling the operation of the field equipment, and generates a field equipment status signal corresponding to the signal input from the power equipment control unit and the power equipment It is fed back to the control unit, and includes a power equipment simulation tester for checking whether or not the normal operation of the power equipment control unit.

In this case, the power equipment control unit, the digital reduced miniature switchgear, and transmits the signal output from the digital reduced miniature switchgear to the power equipment simulation tester, or transmits the feedback signal to the digital reduced miniature switchgear. May include an on-site intelligence team.

In addition, the digital reduced main switchgear is provided with a plurality of keys attached to the front surface, and outputs a control signal corresponding to the selected key of the plurality of keys to the power equipment simulation tester, the field equipment corresponding to the selected key When the status signal is fed back from the power equipment simulator, the lamp corresponding to the fed back signal may be turned on or off.

Here, the power equipment simulation tester, if any key of the plurality of keys provided in the digital reduced-size switchgear is selected and a control signal corresponding to the selected key is input, the field equipment state for turning on or off the selected key In the first mode of outputting a signal, one of two keys operating in pairs is selected, and when a control signal corresponding to the selected key is input, the field equipment status signal for turning on or off each of the selected key and the unselected key is output. When the second mode to be output and a mode key for executing a specific mode among the plurality of keys are selected and a control signal corresponding to the mode key is input, the keys corresponding to the field facilities operating in the specific mode are turned on or off. A third mode for outputting a status signal to perform the step change, and when one of the tap up key and the tap down key is selected, It may be operated in at least one of the fourth mode, which outputs a status signal for turning on or off.

In addition, the digital reduced type micro switchgear may operate in a fifth mode for receiving a field equipment status signal at a predetermined cycle from the power equipment simulation tester and periodically turning on or off a predetermined lamp.

According to the present invention, it is possible to efficiently simulate whether or not the normal operation of the power equipment control unit including the digital reduced-type micro switchgear and on-site information processing panel without having to directly build a field equipment, it is possible to facilitate the user's convenience.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the present invention.

1 is a diagram illustrating a power equipment simulation test system including a power equipment simulation tester and a power equipment control unit according to an exemplary embodiment of the present invention. Referring to FIG. 1, the power equipment simulation test system 300 includes a power equipment simulation tester 100 and a power equipment control unit 200. The power equipment simulation tester 100 includes an input unit 110, a control unit 120, an output unit 130, and a display unit 140. The power equipment control unit 200 includes a digital miniature switchgear 210 and a field information processor 220.

First, referring to the power equipment simulation tester 100, the input unit 110 of the power equipment simulation tester 100 receives a signal from the power equipment control unit 200 for controlling the operation of the field equipment. The controller 120 generates a field equipment status signal corresponding to the input signal. The output unit 130 feeds back the generated signal to the power equipment control unit 200 to check whether the power equipment control unit 200 operates normally.

Here, the field facilities are devices that are actually installed on the site and can be controlled by signals of the power facility control unit 200, and include breakers, disconnectors, and taps. In addition, the power equipment simulation tester 100 may further include a display unit 140, which will be described later with reference to FIG. 2.

The control unit 120 of the power equipment simulation tester 100 turns on or off the selected key when an arbitrary key among a plurality of keys included in the power equipment control unit 200 is selected and a control signal corresponding to the selected key is input. In the first mode for generating a field equipment status signal, when one of the two keys acting as a pair is selected and a control signal corresponding to the selected key is input, each of the selected key and the unselected key is turned on or off. When a second mode for generating a field equipment status signal and a mode key for executing a specific mode among the plurality of keys are selected and a control signal corresponding to the mode key is input, the second equipment generates a field equipment status signal corresponding to the field equipment operating in the specific mode. When the third mode for generating a status signal for turning the keys on or off and one of the tap up key and the tap down key are selected, the tap change key is turned on or It may operate in at least one of the fourth mode, which generates a state signal for turning off.

In addition, the controller 120 may generate a field equipment status signal for blinking an output device included in the power equipment controller 200 at predetermined intervals even when a signal is not input to the input unit 110. It can work as

On the other hand, the power equipment control unit 200 of the power equipment simulation test system 300 includes a digital scaled-down micro switchgear 210 and a field information processing panel 220.

The power facility control unit 200 controls the operation of the field facility. The digital reduced main switchgear 210 includes a plurality of keys attached to the front surface, and outputs a control signal corresponding to a selected key among the plurality of keys to the power equipment simulation tester 100, and corresponds to a field equipment corresponding to the selected key. When the status signal is fed back from the power equipment simulation tester 100, the lamp corresponding to the fed back signal may be turned on or off. The field information processor 220 may transmit a signal output from the digital reduced-capacity switchgear 210 to the power equipment simulation tester 100, or may transmit a feedback signal to the digital reduced-capacity lower switchgear 210. In general, the site information processing unit 220 may use various types of field information processing boards, but preferably, a 23kV field information processing board and a 154kV site information processing board may be used.

On the other hand, unlike shown in Figure 1, instead of the configuration of the power equipment control unit 200, a simulating device (not shown) of the digital miniature switchgear may be connected. In this case, by generating a signal identical to the signal generated by the power equipment control unit 200 in the simulating device (not shown) of the digital reduced-capacity switchgear, the digital reduced-capacity micro switchgear and the field information processing panel do not need to directly construct a field facility. Efficiently simulate the normal operation of the power equipment control unit including a.

2 is a diagram illustrating an example of a display unit of the power equipment simulation tester. Referring to FIG. 2, the display unit 140 may include an input signal display unit 140a and an output signal display unit 140b, and may display whether signal input / output operations are normally performed through the display units 140a and 140b. have. Each of the signal display units 140a and 140b may include, for example, ten input modules DI1, DI2,..., DI10 that display an input signal, and ten output modules DO1 that display an output signal. DO2 ..., DO10), each module having 10 lamps. That is, ten points may be provided and connected to each module. As a result, it is possible to check the input and output status of 100 field equipment such as a circuit breaker by turning on and off the lamp, and additionally connect a separate power simulation tester for the field equipment.

3A to 3E are diagrams showing an example of an output element formed in a digital reduced-capacity switchgear for simulating whether the power equipment simulation tester is in normal operation, and FIGS. 4 to 8 are normal views of the power equipment simulation tester. It is a figure which shows the control signal according to each mode for simulating the operation.

3A to 3E and 4 to 8, the operation principle of the power equipment simulation test system 300 including the power equipment simulation tester 100 and the power equipment control unit 200 will be described.

In general, the main components of the electrical equipment are shown in a simple figure on the front surface of the digital reduced-capacity switchgear 210 of the power equipment control unit 200, and the structures of the entire equipment are connected by connecting them with lines or arrows. A schematic diagram (not shown) is shown. 3A to 3E illustrate keys that are output elements such as lamps and switches shown in one region of the schematic diagram for convenience of description.

In general, when the user presses a key formed on the front of the digital reduced-capacity switchgear and operates as a lamp and a switch, a signal corresponding to the pressed key is generated, and the generated signal is transmitted to the field information processing panel 220. Is transmitted, and is again input to the power equipment simulation tester 100. The power equipment simulation tester 100 generates a field equipment status signal, which is a signal transmitted to an actual field equipment according to the input signal. The generated on-site equipment status signal is transmitted to the on-site information processing panel 220 and finally displayed through an output element formed on the front of the digital reduced-capacity switchgear 210.

Alternatively, even when the input signal is not input, the control signal may be finally fed back to the digital reduced micro switchgear 210 at a predetermined time interval, so that the control signal may be displayed through an output element formed on the front of the digital reduced micro switchgear 210.

Accordingly, it is possible to simulate whether the power equipment controller 200 is operating normally without directly connecting the power equipment controller 200 and the actual field equipment (not shown).

Specifically, in accordance with the signal generated in the digital reduced-scale low-circuit switchgear 210, the field equipment status signal according to the above four modes generated by the power equipment simulation tester 100, and the signal to the power equipment simulation tester 100 Although not input, the field equipment status signal generated by the power equipment simulation tester 100 will be described.

3A and 4, a first mode of controlling one contact point of a field facility using one key will be described. When the " 51SN RESET " key of the digital reduced-size switchgear 210 is pressed, the " 51SN RESET " key blinks for a predetermined time after a predetermined time elapses, so that the user is operating the power equipment controller 200 normally. can confirm.

That is, when a signal such as (a) of FIG. 4 is generated and transmitted to the power equipment simulation tester 100, the control unit 120 of the power equipment simulation tester 100 is configured as shown in FIG. 4 (b). The first mode operation may be performed by generating the same signal as the signal input to the simulation tester 100 or a delayed signal by a predetermined value and feeding it back to the digital reduced-capacity switchgear 210.

3B and 5, a second mode of controlling one contact point of a field facility using a pair of keys will be described. When the "43CA ON" key of the digital reduced-size switchgear 210 is pressed, the "43CA ON" key is turned on and the "43CA OFF" key is turned off, and conversely, when the "43CA OFF" key is pressed, "43CA OFF" is pressed. By turning the "key on" and the "43CA ON" key off, the user can check whether the power equipment controller 200 is operating normally.

That is, if FIG. 5A is a signal corresponding to the "43CA ON" key and FIG. 5B is a signal corresponding to the "43CA OFF" key, in FIG. 43CA OFF "key is pressed, the state changes from" 0 "to" 1 "in the output signal of FIG. 5 (d) corresponding to the" 43CA OFF "key, and in the output signal of FIG. Notice that the state changes from 1 "to" 0 ". In the case of t2 time, since the "43CA ON" signal was pressed, it can be seen that the operation is the same as in the case of t1 time.

Referring to FIGS. 3C and 6, a third mode of controlling two contact points of field facilities using five keys will be described. In the third mode, there are an auto mode and a manual mode. Auto mode is a mode in which the key is turned on according to the field equipment status signal generated by the actual field equipment regardless of the user presses any key. Therefore, even if the user presses the "43 PDA # 1", "43 PDA # 2", and "43 PDA OFF" keys in the "43PDA AUTO" operating state, the power equipment simulator does not output the output signal.

In manual mode, on the other hand, three contacts can be controlled. If the "43PDA # 1" key is pressed while the manual mode "43PDA MAN" key is pressed, the "43PDA # 1" key is turned on and the remaining "43PDA OFF" and "43PDA # 2" keys are turned off. Likewise, if the "43PDA OFF" key is pressed while the "43PDA MAN" key in the manual mode is pressed, the "43PDA OFF" key is turned on and the remaining "43PDA # 1" and "43PDA # 2" keys are turned off. As described above, a signal for controlling the contact point # 1 and the contact point # 2 of the actual field equipment is generated and provided to the power equipment control unit by turning on and off the keys of the digital reduced-type low-circuit switchboard, thereby allowing the user to control the power equipment control unit. You can check whether it works normally.

That is, FIGS. 6A to 6E are input signals, in which FIG. 6A is in auto mode, FIG. 6B is in manual mode, and FIG. ) Corresponds to the contact # 1, (d) of FIG. 6 corresponds to the contact # 2, and (e) of FIG. 6 corresponds to the signal which OPENs the contacts # 1 and # 2, respectively. 6 (f) to (j) show output signals corresponding to the above-described input signals, respectively.

When the auto mode is pressed at time t5, the waveform of the output signal remains unchanged even though each key is pressed at t6, t7 and t8 in Figs. 6C to 6E.

On the other hand, when the manual mode is pressed at time t1, the output signal corresponding to the manual mode (g) of FIG. 6 changes state from "0" to "1", and the output signal corresponding to the auto mode is shown in FIG. (F) changes state from "1" to "0". In the manual mode, when any one of the three keys is pressed in t2, t3, and t4 of Figs. 6C to 6E, the pressed key changes state from "0" to "1", and the pressed key The other two keys except for the state change from "1" to "0".

A fourth mode of controlling a tap using three keys will be described with reference to FIGS. 3D and 7. A tap is a lead wire designed for windings to raise and lower the voltage of a transformer. In this case, raising the tap manually is called TAP RAISE, and lowering the tap manually is called TAP LOWER. The "RAISE" key in FIG. 3D raises the tab manually, and the "LOW" key manually lowers the tap. "T.C" key indicates TAP CHANGE. Eventually, pressing the "RAISE" key and the "LOW" key will change the tab and the "T.C" key will flash.

That is, if (a) and (b) of FIG. 7 correspond to the "RAISE" key and the "LOW" key, respectively, each time the key is pressed, the corresponding signal is respectively "0", "in FIG. You can see that the state changes to "1" and "0". Accordingly, through the blinking of the keys of the digital miniature switchgear, a signal for controlling the tap of the actual field equipment is generated and provided to the power equipment controller so that the user can check whether the power equipment controller is operating normally. .

Referring to FIGS. 3E and 8, even when an input signal is not provided to the power equipment simulation tester 100, the user is fed back to the power equipment control unit 200 by feeding back a predetermined signal to the power equipment control unit 200 at a pre-stored time interval. You can see that it works normally. 3E illustrates an output element shown in one region of the schematic diagram. When a periodic signal that changes to "0", "1", and "0" at predetermined time intervals is provided to the power equipment control unit 200 in FIG. By blinking the output switch (ES), the user can confirm that the power equipment control unit 200 operates normally.

Although the preferred embodiments of the present invention have been illustrated and described above, those skilled in the art to which the present invention pertains should preferably practice the present invention without departing from the spirit and scope of the present invention. Of course, the examples can be changed in various ways. Therefore, various modifications may be made without departing from the spirit of the invention as claimed in the claims, and such modifications should not be individually understood from the technical spirit or outlook of the invention.

1 is a diagram illustrating a power equipment simulation test system including a power equipment simulation tester and a power equipment control unit according to an embodiment of the present invention.

2 is a diagram illustrating an example of a display unit of the present power equipment simulation tester.

3A to 3E are diagrams showing an example of an output element formed in a digital reduced-capacity switchgear for simulating whether the present power equipment simulation tester operates normally.

4 to 8 are diagrams showing control signals according to respective modes for simulating whether the power equipment simulation tester is in normal operation.

Explanation of symbols on the main parts of the drawings

100: power equipment simulation tester 110: input unit

120: control unit 130: output unit

140: display unit 140a: input signal display unit

140b: output signal display unit 200: power equipment control unit

210: digital miniature switchgear 220: field information processing panel

300: power equipment simulation test system

Claims (10)

delete delete An input unit for receiving a signal from a power equipment controller for controlling an operation of a field equipment; A controller configured to generate an on-site facility status signal corresponding to the input signal; An output unit which feeds back the generated signal to the power equipment control unit and checks whether the power equipment control unit is normally operated; And, And a display unit displaying whether the signal input / output operation is normally performed. The control unit, A first mode for generating an on-site facility status signal for turning on or off the selected key when an arbitrary key is selected from among a plurality of keys provided in the power equipment control unit and a control signal corresponding to the selected key is input; A second mode for generating a field equipment status signal for turning on or off each of the selected key and the unselected key when one of two keys operating in pairs is selected and a control signal corresponding to the selected key is input; When a mode key for executing a specific mode is selected from among the plurality of keys and a control signal corresponding to the mode key is input, a status signal for turning on or off the keys corresponding to the field facilities operating in the specific mode is generated. A third mode, and, And if one of the tap up key and the tap down key is selected, operating in at least one of a fourth mode for generating a status signal for turning on or off the tap change key. The method of claim 3, The control unit, And a power equipment simulation tester operating in a fifth mode for generating an on-site equipment status signal for blinking an output device included in the power equipment control unit at predetermined intervals even if a signal is not input to the input unit. The method according to claim 3 or 4, The power equipment control unit includes a digital miniature switchgear and field information processing panel, And the field equipment is at least one of a breaker, a disconnector, and a tap. delete delete delete A power facility controller for controlling the operation of the field facility; And, And a power equipment simulation tester which generates a field equipment status signal corresponding to the signal input from the power equipment controller and feeds it back to the power equipment controller to check whether the power equipment controller operates normally. The power equipment control unit, Digital miniature switchgear; And, And a field information processing unit for transmitting a signal output from the digital reduced miniature switchgear to the power equipment simulation tester or transferring the feedback signal to the digital reduced miniature switchgear. The digital reduced type switchgear, It has a plurality of keys attached to the front surface, and outputs a control signal corresponding to the selected key of the plurality of keys to the power equipment simulation tester, the field equipment status signal corresponding to the selected key is fed back from the power equipment simulation tester If so, characterized in that the lamp corresponding to the feedback signal is turned on or off, The power equipment simulation tester, A first mode for outputting an on-site facility status signal for turning on or off a selected key when an arbitrary key is selected from among a plurality of keys provided in the digital reduced type switchgear, and a control signal corresponding to the selected key is input; A second mode in which one of two keys operating in pairs is selected and a control signal corresponding to the selected key is input, and outputs a field equipment status signal for turning on or off each of the selected key and the unselected key, When a mode key for executing a specific mode is selected from among the plurality of keys and a control signal corresponding to the mode key is input, a status signal for turning on or off keys corresponding to the field facilities operating in the specific mode is output. A third mode, and, And a fourth mode of outputting a status signal for turning on or off the tap change key when one of the tap up key and the tap down key is selected, the power equipment simulation test system. The method of claim 9, The digital reduced type switchgear, Receiving a field equipment status signal every predetermined period from the power equipment simulation tester, and operates in a fifth mode for periodically turning on or off the predetermined lamp.

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