AC / DC power supply monitoring automatic testing device

Abstract

The utility model relates to an AC / DC power supply monitoring automatic test device, which is characterized in that upper computer control software ProtTestTool reads a test process configuration file, and a control tool is used for switching of analog quantity channels, remote control output, remote signaling acquisition and control of a test indicating lamp; the electricity testing instrument is used for outputting three paths of current quantity and four paths of voltage quantity; the simulation circuit breaker is used for simulating the opening and closing functions of the circuit breaker and providing an opening and closing position auxiliary contact; the switch is used for connecting the upper computer, the control tool, the tested device and the blog tester, and all test command messages are realized through network transmission; and the B code time synchronization instrument is used for providing a B code time synchronization function for the control tool and the tested device. The device can accurately judge the result of each test item, greatly improves the delivery test efficiency of the relay protection device, reduces the missing detection and error detection rate of manual test, and has the characteristics of full-automatic test, high reliability, complete functions, accurate test result and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of AC / DC power supply monitoring automatic testing device, for a kind of AC / DC power supply monitoring automatic testing device for extra-high voltage, thermal power plant, transformer substation. BACKGROUND

[0002] In recent years, with the promotion of domestic intelligent substation, wisdom substation, new functions of AC / DC power supply monitoring device emerge in an endless stream, and the testing difficulty is increasing, so that the factory detection personnel must be very familiar with principle, testing method, and manual testing remote signal input, remote control output, analog quantity, direct current, control loop and other software and hardware functions are needed, and factory detection work becomes complicated and repetitive, with low testing efficiency and prone to miss detection and wrong detection.

[0003] Therefore, a kind of AC / DC power supply monitoring automatic testing device with complete functions and convenient operation is needed to meet the "wrong, miss" detection problem faced during product factory testing, realize the automatic testing of product and improve testing efficiency. SUMMARY

[0004] In order to solve the above technical problems, the utility model is a kind of AC / DC power supply monitoring automatic testing device, and the technical scheme is:

[0005] It comprises host computer, control tooling, wiring tooling, power test instrument, analog circuit breaker, switch and B code time instrument, host computer is installed in test host test platform table position, and is connected with switch through network cable;Switch is installed in the middle layer position of test platform cabinet, used for connecting host computer, control tooling, tested device, power test instrument, and its test command message is realized through network transmission;Power test instrument is installed in the upper layer position of test platform cabinet, used for outputting 3-way current and 4-way voltage, and connected with host computer;Control tooling is installed in test platform table position, connected with switch through network cable, and control tooling is also connected with power test instrument, test indicator and wiring tooling respectively, used for analog quantity channel switching, remote control output, remote signal acquisition, test indicator control;B code time instrument is installed in the upper layer position of test platform cabinet, used for providing B code time function for control tooling and tested device, and connected with FBZ3100 protection;FBZ3100 protection is installed in test platform table position, and connected with switch and analog circuit breaker respectively;Analog circuit breaker is installed in the lower layer position of test platform cabinet, used for simulating the breaking and closing function of circuit breaker and providing breaking and closing position auxiliary contact.

[0006] Further, the output end of host computer is connected with the input end of switch and power test instrument respectively;

[0007] The control tool input end is connected with the B power tester output end, and the current and voltage of the control tool are controlled by the B power tester; the control tool output end is connected with the switch, the wiring tool and the test indicator lamp input end respectively, and the wiring tool is controlled by the control tool to control the input, output and analog quantity;

[0008] The output end of the B code time instrument is connected with the FBZ3100 protection input end;

[0009] The input and output ends of the FBZ3100 protection are connected with the output and input ends of the analog circuit breaker through the control loop respectively, and the output end of the FBZ3100 protection is connected with the switch input end.

[0010] Further, the host computer is provided with the control software ProtTestTool, which is used for detecting the power supply of the measured device connected with the B power tester and the wiring tool and reading the test flow configuration file.

[0011] The utility model discloses a kind of AC / DC power supply monitoring automatic testing device, and host computer control software ProtTestTool reads test flow configuration file, control tool is used for analog channel switching, remote output, remote information collection, the control of test indicator lamp;B power tester is used for output 3 electric current 4 electric voltage quantity;Analog circuit breaker is used for the breaking and closing function of analog circuit breaker and provides breaking and closing position auxiliary contact;Switch is used for connecting host computer computer, control tool, the device to be tested, B power tester, all test command messages are realized by network transmission;B code time instrument is used for providing B code time function for control tool and the device to be tested.The device can accurately determine the result of each test item, greatly improves the factory test efficiency of relay protection device, reduces the missed detection, wrong detection rate of manual test, with full-automatic test, high reliability, complete function, test result accurate and the like characteristics. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the connection schematic diagram of the utility model;

[0013] Figure 2 It is the wiring diagram of the utility model;

[0014] Figure 3 It is the host computer control software ProtTestTool main interface diagram;

[0015] Figure 4 It is test configuration file diagram;

[0016] Figure 5 It is control tool CtrlTool network port communication circuit principle diagram;

[0017] Figure 6It is an automatically generated test report graph.

[0018] As shown in the figure, 1 is the host computer; 2 is the control fixture; 3 is the wiring fixture; 4 is the Bodian tester; 5 is the simulated circuit breaker; 6 is the switch; and 7 is the B-code time synchronization instrument. Detailed Implementation

[0019] As shown in the figure, this utility model is an automatic testing device for AC / DC power supply monitoring, including host computer control software ProtTestTool, control fixture CtrlTool, wiring fixture ConnectTool, Bodian tester, simulated circuit breaker, switch, B-code time synchronization instrument, etc. When the device is running, after the host computer control software ProtTestTool detects successful power supply to each device, it reads the test configuration file and performs tests on each item sequentially according to the file order. After the tests are completed, a test report is automatically generated. my country's standard DL / T856, "Power DC Power Supply and Integrated Power Supply Monitoring Device," sets forth clear requirements for various technical performance indicators for AC / DC power supply monitoring. The automatic testing device for AC / DC power supply monitoring mentioned in this patent is developed and designed according to the requirements of this standard.

[0020] Further explanation with reference to the attached diagram:

[0021] like Figure 1 As shown in the device connection diagram, the host computer 1 (a Dell computer, installed on the test platform table), the control software ProtTestTool, the control fixture 2 (a self-developed MD355 controller, installed on the test platform table), and the Bodian tester 4 (a Bodian PW336A, installed on the upper layer of the test platform cabinet) are all connected to the switch 6 (a Dongtu KIEN7009, installed in the middle layer of the test platform cabinet) via network cables. During device operation, the host computer control software ProtTestTool detects that the power supply to the device under test (DUT) connected to the Bodian tester 4 and wiring fixture 3 (using a self-developed MD356 connector fixture, installed on the test platform table) is normal. After this, the tester clicks the "Start Test" button on the host computer control software ProtTestTool. The host computer software ProtTestTool performs the tests for each item in sequence according to the test configuration file. During the test, it issues commands or reads process data to the control fixture CtrlTool, the Bodian tester 4, and the wiring fixture 3 ConnectTool according to the test item, records the test process data, and automatically calculates and judges the test results according to the configured test result criteria. After all items are tested, the results are automatically saved to the test report file.

[0022] The test steps for manually opening the circuit when the anti-pumping circuit is held during manual closing are as follows:

[0023] First step, the host computer control software ProtTestTool sends a hand-on signal to the control tool CtrlTool, and the control tool CtrlTool turns on the hand-on relay (the relay is always on), and the wiring tool ConnectTool connected to the measured device is powered on, and the simulated circuit breaker 5 (using the Bode PSS01 circuit breaker simulation device, installed in the lower layer position of the test platform cabinet) is closed;

[0024] Second step, the host computer control software ProtTestTool sends a hand-off signal to the control tool CtrlTool, and the control tool CtrlTool turns on the hand-off relay (the relay is always on), and the wiring tool ConnectTool connected to the measured device is powered on, and the simulated circuit breaker is tripped;

[0025] Third step: the host computer control software ProtTestTool reads the remote signaling state of the wiring tool ConnectTool connected to the measured device, and if it is on, the test is passed, and if it is off, the test fails.

[0026] Figure 2 Control tool CtrlTool and remote signaling board, outlet board, CPU board wiring diagram of the device under test.

[0027] (1) Remote signaling input board test

[0028] First step, the host computer control software sends a first relay outlet control command to the control tool, and the control tool turns on the first relay, and after 2S, the host computer control software reads the first remote signaling state of the measured device, and if it is on, the test is passed, and if it is off, the first remote signaling is prompted to have a problem;

[0029] Second step, the host computer control software sends a first relay outlet control command to the control tool, and the control tool turns off the first relay, and after 2S, the host computer control software reads the first remote signaling state of the measured device, and if it is off, the test is passed, and if it is on, the first remote signaling is prompted to have a problem;

[0030] Third step, sequentially perform the on-off test of the remaining number of remote signaling.

[0031] (2) Remote control output board test

[0032] First step, the host computer control software sends a first relay outlet control command to the measured device, and the device output line is connected to the remote signaling acquisition board of the control tool, and after 2S, the host computer software ProtTestTool reads the remote signaling state of the control tool, and if the corresponding remote signaling is on, the test is passed, and if it is off, the first relay outlet is prompted to have a problem, and is recorded in the test results;

[0033] The second step, the host computer control software sends the first relay outlet to the measured device, and the device opens the outlet line connected to the remote signal acquisition board of the control tool. After 2S, the host computer control software reads the remote signal acquisition data of the control tool. If the corresponding remote signal is a split position test, it passes. If it is a combined position, it indicates that the first relay has a problem, and the test result is recorded.

[0034] The third step is to test the remaining relays in turn.

[0035] (3) Analog board test

[0036] The first step, the host computer control software sends an analog quantity start test command and closes the first group of contactors to the control tool. The control tool controls the first group of contactors to be attracted by the relay outlet. At this time, the first group of mutual inductors of the measured device is connected to the Bo electric tester. After connection, the reply confirmation frame is returned to the host computer software.

[0037] The second step, the host computer control software controls the Bo electric tester to output voltage and current.

[0038] The third step, after 10 seconds of Bo electric tester output, the host computer control software reads the analog quantity of the measured device for comparison and records the test result.

[0039] (4) CPU board test

[0040] The first step, the host computer control software sends a NANDFLASH test command to the measured device. The measured device writes 20 groups of different data to the NANDFLASH and records the check code. After reading the data, the check code is calculated. If the data is consistent with the data written at the time, the chip is qualified. Otherwise, the chip has a problem, and the test result is sent to the host computer control software.

[0041] The second step, the host computer control software sends a watchdog test command to the measured device. The measured device writes 3 bytes (0x88, 0x99, 0x77) to the EEPROM and enters a dead loop. After the watchdog time, the measured device restarts. After successful restart, the program reads the EEPROM at the beginning. If the first three bytes are (0x88, 0x99, 0x77), it means that the watchdog is being tested. After successful restart, send the watchdog test correct command to the host computer. After 30 seconds, the host computer cannot receive the watchdog success command and considers it a failure. After the test is completed, the measured device automatically erases the data written to the EEPROM.

[0042] The third step, the host computer control software sends a time setting command to the device under test, and the device under test is connected to a B code time setting instrument 7 (YT335 from Hengyu, Yantai, installed on the upper layer of the test platform cabinet), so that the time can be restored to the normal time after the next B code time setting, and the host computer software reads the device under test time after 1 minute of time setting, and the error between the computer time and the device under test time within 10 seconds is considered as normal B code time setting.

[0043] Figure 3 The main interface of the host computer control software ProtTestTool is shown in the left tree list of the test file, the test board and the test project, the right list of the test entry state being tested, the log window outputs the abnormal information in the test step, and the status bar displays the communication state of the host computer control software ProtTestTool and the relay protection instrument and the device under test, wherein the test of the untested board, the test being tested, the test passing, and the test failing are displayed.

[0044] Figure 4 The test configuration file is shown in the figure, and the configuration file of different test board test projects is written according to the displayed configuration file prompt instruction, different test project files can be configured according to the model of the device, and only one test project of a board can be configured, so that batch detection of a single board is facilitated.

[0045] Figure 5 The principle diagram of the network port communication circuit of the control tool CtrlTool is shown in the figure, and the control tool CtrlTool is connected to the switch through the network port and communicates with the host computer control software ProtTestTool.

[0046] Figure 6 The automatically generated test report is shown in the figure, and the host computer control software ProtTestTool automatically generates the test report of the device after testing all test projects according to the configuration file.

[0047] The utility model discloses a full-automatic testing device for improving the delivery test efficiency of AC / DC power supply monitoring devices, reducing the test workload, and reducing the missed detection and wrong detection rate caused by manual test, and the device is especially suitable for the delivery test of AC / DC power supply monitoring devices of 220kV and above voltage level substations, to meet the efficient and accurate delivery test demand of AC / DC power supply monitoring manufacturers, and the test of a relay protection device is reduced from 1 hour to 15 minutes, the test efficiency is greatly improved, and the test complexity and difficulty are reduced.

[0048] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An AC / DC power supply monitoring automatic testing device, comprising a host computer (1), a control tool (2), a wiring tool (3), a power test instrument (4), a simulated circuit breaker (5), a switch (6), and a B code time instrument (7), characterized in that, the host computer (1) is installed on a test platform in a test host computer, and is connected to the switch (6) through a network cable; the switch (6) is installed in the middle of a test platform cabinet, and is used for connecting the host computer, the control tool, the device under test, and the power test instrument, and test command messages of the switch (6) are transmitted through a network to achieve testing; the power test instrument (4) is installed on the upper part of the test platform cabinet, and is used for outputting three current values and four voltage values, and is connected to the host computer (1); the control tool (2) is installed on the test platform, and is connected to the switch (6) through a network cable, and is also connected to the power test instrument (4), a test indicator, and the wiring tool (3), and is used for switching a simulated quantity channel, remotely controlling outgoing and remotely collecting information, and controlling a test indicator; the B code time instrument (7) is installed on the upper part of the test platform cabinet, and is used for providing a B code time function for the control tool and the device under test, and is connected to an FBZ3100 protection; the FBZ3100 protection is installed on the test platform, and is connected to the switch (6) and the simulated circuit breaker (5); the simulated circuit breaker (5) is installed on the lower part of the test platform cabinet, and is used for simulating tripping and closing functions of the circuit breaker and providing auxiliary contacts of tripping and closing positions.

2. The automatic testing device for monitoring AC / DC power supply of claim 1, wherein an output end of the host computer (1) is connected to an input end of the switch (6) and the power test instrument (4); an input end of the control tool (2) is connected to an output end of the power test instrument (4), and the control tool (2) is controlled by the power test instrument (4) to control current and voltage; an output end of the control tool (2) is connected to input ends of the switch (6), the wiring tool (3), and the test indicator, and the control tool (2) controls incoming, outgoing, and simulated quantities of the wiring tool (3); an output end of the B code time instrument (7) is connected to an input end of the FBZ3100 protection; input and output ends of the FBZ3100 protection are connected to output and input ends of the simulated circuit breaker (5) through a control loop, and an output end of the FBZ3100 protection is connected to an input end of the switch (6).

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