CN202550688U - A Simulation Simulator for FA Function Test in Non-power-off State - Google Patents

Abstract

The utility model relates to a FA functional test simulator under non-power off state, its technical characterstic is: the remote-control testing device is formed by connecting a shell and a testing simulation circuit inside the shell, wherein the testing simulation circuit is formed by connecting a direct-current power supply, a remote-control testing module and a remote-signaling simulation module, the remote-control testing module comprises a plurality of paths of remote-control state indicating lamps and a controllable silicon, a remote-control pulse signal is connected to a control electrode of the controllable silicon, each path of remote-control state indicating lamp is connected with one controllable silicon, the remote-signaling simulation module comprises a plurality of paths of double-pole double-throw switches and corresponding remote-signaling state indicating lamps, and each path of double-pole double-throw switches is connected with two remote. The utility model relates to a rationally, avoided the switch action effectively and verified remote control, remote signaling function, guaranteed the FA functional test under the non-power off state, opened brand-new situation for FA field test, also provide effectual method for the comprehensive acceptance of city distribution automation test point engineering.

Description

A Simulation Simulator for FA Function Test in Non-power-off State

technical field

The utility model belongs to the field of electric power distribution automation, in particular to a FA function test simulation simulator in a non-power failure state.

Background technique

With the rapid development of the national economy, the country's demand for electricity is increasing, and at the same time, the requirements for power supply reliability are also getting higher and higher. Distribution automation (DA) is to improve the reliability and quality of power supply for power companies, expand power supply capacity, An important means to realize efficient and economical operation of distribution network has been paid more and more attention by electric power researchers. In order to ensure the quality of distribution automation products, the system needs to conduct joint debugging and testing of all aspects of the system before it is put into operation. , the joint commissioning of feeder automation (FA) and the testing of some functions cannot be carried out completely, and some functions need to be debugged on site. However, the site is all operating equipment with loads. In order to ensure the reliability of the power supply, it is not possible to cut off the power to the users, so the functional test in the non-power-off state is particularly important. In addition, in the process of distribution network automation transformation, the requirements for power outage time are very strict, and it is not allowed to power off users when entering the test stage. In order to ensure the reliability of power supply, it is urgent to solve the function test of FA under non-power outage conditions question.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a FA function test simulation simulator in a non-power-off state with reasonable design, high reliability and convenient use.

The utility model solves its technical problem and realizes by taking the following technical solutions:

An FA function test simulation simulator in a non-power-off state, which is composed of a casing and its internal test simulation circuit. The casing is provided with multiple remote control status indicators, multiple remote signaling status indicators, and multiple The double-pole double-throw switch corresponding to the remote signal status indicator light; the test simulation circuit is composed of a DC power supply, a remote control test module and a remote signal analog module. Connected to the control pole of the thyristor, each remote control status indicator is connected to a thyristor, and the DC power is loaded between each thyristor and the remote control status indicator; the remote signaling analog module includes multiple double poles Double-throw switch and corresponding remote signaling status indicator light, each double-pole double-throw switch is connected to two remote signaling status indicator lights, DC power is loaded between each double-pole double-throw switch and remote signaling status indicator light, through Toggle the switch to make the corresponding remote signaling status indicator glow, and send a remote signaling pulse signal to the master station.

Moreover, the said DC power supply is a 3V DC power supply.

Moreover, both the remote control status indicator light and the remote signaling status indicator light are light emitting diodes.

Advantage and positive effect of the present utility model are:

The utility model has a reasonable design, and can receive circuit breaker tripping and closing signals, receive protection signals, simulate circuit breaker tripping and closing signals and other remote control pulse signals through the remote control test module and the remote signal simulation module, and send simulated remote signal displacement signals, effectively It avoids switching action and verifies the functions of remote control and remote signaling, ensuring the FA function test in the non-power-off state, opening up a new situation for FA field testing, and also providing an effective test for the comprehensive acceptance of urban power distribution automation pilot projects. Methods.

Description of drawings

Fig. 1 is the schematic diagram of the front panel of the casing of the present utility model;

Fig. 2 is the schematic diagram of the test simulation circuit of the present utility model;

Fig. 3 is a schematic diagram of the wiring of the switching station selected in the application test scheme of the utility model.

Detailed ways

Embodiments of the utility model are described in further detail below in conjunction with the accompanying drawings.

The utility model relates to a FA function test emulation simulator in a non-power-off state, which is composed of a casing and an internal test emulation circuit connection. As shown in Figure 1, on the front panel 1 of the casing, there are 16 remote control status indicator lights 2, 8 remote signaling status indicator lights 3, and 8 double pole double throw switches 4, remote control status indicator lights and remote signaling status indicators. The indicator lights are all light-emitting diodes. The test simulation circuit is composed of a 3V DC power supply, a remote control test module and a remote signal simulation module connected to realize the functions of remote control reception and remote signal transmission, as shown in Figure 2. The remote control test module includes 16 light-emitting diodes and 16 thyristors. The remote control pulse signal is connected to the control pole of the thyristor. Each light-emitting diode is connected to a thyristor. The 3V DC power is loaded on the thyristor and the light Between the two diodes, the remote control pulse signal is transmitted to the remote control test module to trigger the diode to emit light, and it can be judged whether the circuit breaker tripping signal is received. match. The remote signaling analog module includes 8 double-pole double-throw switches and 16 light-emitting diodes. Each double-pole double-throw switch is connected to two light-emitting diodes. The switch can turn on the circuit to make the corresponding diode light up, and at the same time send a pulse signal to make the master station receive the corresponding remote signaling signal, realizing the remote signaling simulation function.

When the FA function test simulator is in use, connect the outgoing line of the remote control test module to the FA remote control outlet pressure plate. When the master station sends a remote control command, the remote control pulse signal reaches the remote control test module to make the corresponding LED light up. Connect the corresponding remote signaling analog module to its corresponding remote signaling signal terminal. When the toggle switch conducts the circuit, there will be voltage transmitted back to the FA measurement and control device, so that the master station receives the corresponding remote signaling signal. When the switch is turned on When it is on the top, the upper row of diodes will glow, and when it is turned to the bottom, the lower row of diodes will be on.

This FA function test simulation simulator can be used in the commissioning and acceptance of distribution automation, both centralized and local. In the following, the on-site FA is taken as an example. As shown in Figure 3, the distribution automation ring network is composed of two feeder connections of the distribution station NK124 and the distribution station NK800. According to the load distribution, the Li 2305 negative 2 switch is set as a tie switch, and a boundary circuit breaker is added at the source end of NK124 and NK800 and corresponding protection is set to ensure that the boundary circuit breaker operates before the 10KV outlet switch when a fault current occurs, ensuring During the whole process, there is no power outage to the user. During the test, the relay protection tester is used to add various types of fault currents to the current terminals to simulate various faults. After monitoring the fault information, the master station starts the fault processing process and makes decisions by analyzing fault location, fault type and other information By analyzing and issuing fault isolation instructions, the functional test of the centralized FA can be realized in the non-power-off state. When testing the remote control function, first make sure that all the switches on the site are in remote locations, and disconnect all the remote control input and connection pressure plates on the site, and direct remote control operations on the switches are not allowed. In order to test the FA remote control signal, we use the remote The outlet pressure plate is connected to the FA function test simulation simulator. When the control relay operates, the remote control pulse will make the small light on the simulated circuit breaker light up. At this time, we believe that the remote control operation is successful. When testing the remote signaling function, the FA function test simulation simulator is also connected to the remote signaling terminal. When the analog circuit breaker shows that the switch control is successfully completed, manually toggle the switch on the analog circuit breaker to make the "switch state" remote signaling When the terminal forms a path, the switch close signal can be reported; if the analog circuit breaker shows that the switch control is successful, toggle the switch to disconnect the "switch state" remote signaling terminal, and the master station will receive the switch close signal. Similarly, connecting any remote signaling terminal to an analog circuit breaker can realize uploading of remote signaling signals.

This FA function test simulation simulator conducts commissioning and acceptance of the regional feeder terminal according to the number of switching stations connected to the power grid. The number of feeder sections will be adjusted, and finally the centralized joint commissioning of all switching stations in the pilot area will be realized. Through the comprehensive use of power distribution automation, when a fault occurs, the master station will directly start the DA program after monitoring the fault signal, and isolate the fault in the shortest time, which will fundamentally reduce the average number of power outages for users, shorten the average power outage time for users, and reduce The total number of households during power outages, thereby improving the reliability of power supply.

It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, so the present invention is not limited to the embodiments described in the specific implementation. All other implementations obtained according to the technical solution of the present utility model also belong to the scope of protection of the utility model.

Claims (3)

1. FA function test emulation simulator under a kind of non-power-off state, it is characterized in that: be formed by the test emulation circuit connection of casing and its inside, be provided with multi-channel remote control status indicator light, multi-channel remote signal status on the casing The indicator light and the double-pole double-throw switch corresponding to the multi-channel remote signal status indicator light; the test simulation circuit is composed of a DC power supply, a remote control test module and a remote signal simulation module. The remote test module includes a multi-channel remote control status indicator light and a SCR, the remote control pulse signal is connected to the control pole of the SCR, each remote control status indicator is connected to a SCR, and the DC power is loaded between each SCR and the remote control status indicator; remote signal simulation The module includes multiple DPDT switches and corresponding remote signaling status indicators. Each DPDT switch is connected to two remote signaling status indicators. DC power is loaded on each DPDT switch and remote signaling status indicators. Between the indicator lights, the corresponding remote signaling status indicator light is illuminated by a toggle switch, and a remote signaling pulse signal is sent to the master station. 2. The FA function test emulation simulator in a non-power-off state according to claim 1, characterized in that: said DC power supply is a 3V DC power supply. 3. The FA function test simulation simulator in a non-power-off state according to claim 1, characterized in that: the remote control status indicator light and the remote signaling status indicator light are both light-emitting diodes.

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