CN203606469U - Simulation test device for intelligent transformer tapping switch - Google Patents
Simulation test device for intelligent transformer tapping switch Download PDFInfo
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- CN203606469U CN203606469U CN201320445457.4U CN201320445457U CN203606469U CN 203606469 U CN203606469 U CN 203606469U CN 201320445457 U CN201320445457 U CN 201320445457U CN 203606469 U CN203606469 U CN 203606469U
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Abstract
The utility model discloses a simulation test device for an intelligent transformer tapping switch. The simulation test device comprises a main control module, a communication module, a test circuit module and a key module. The main control module is respectively connected with the test circuit module, the communication module and the key module. The test circuit module is configured to conduct the conversion treatment on the test data of an external to-be-tested product, and then transmit the data to the main control module. The communication module is configured to transmit the test data of external host equipment to the main control module. The main control module is configured to process the test data transmitted from the test circuit module/communication module according to the preset information of the key module. According to the technical scheme of the utility model, the simulation test device is particularly suitable for being applied to the simulation training for the power system. By means of the simulation test device, not only the practical operation ability of students can be cultivated, but also the fault analysis capability of the students can be trained.
Description
Technical field
The utility model relates to a kind of Intelligent transformer shunting switch simulation testing device, belongs to Simulating technique in Electric Power System field.
Background technology
Shunting switch is a kind ofly to provide the switchgear of constant voltage when the load variations for transformer, its ultimate principle is exactly in the situation that guaranteeing not interrupt load electric current, realize the switching between tap in Transformer Winding, thereby change the number of turn of winding, be the voltage ratio of transformer, finally realize the object of pressure regulation.In power transmission and transformation industry, high-power transformer has generally been installed shunting switch, and it plays an important role to the quality of voltage that guarantees user.
But the common fault of shunting switch has: 1. shunting switch loose contact causes local overheating, this be mainly shunting switch spring pressure not or contact surface loose contact cause; 2. shunting switch arcing or spark discharge, this is mainly because do not put in place electric discharge or the operating process of tap change operation bar of shunting switch moving contact contact breaks, the moving contact electric discharge that do not put in place.
Shunting switch moves conventionally under high voltage environment.While test at the scene, high-tension apparatus major part is in running status, and actual hot line job exists certain danger.For the student who participates in training, personal safety can not get guarantee, and the object of training is also difficult to realize.Along with emulation technology is in the widespread use of electric system, carries out emulation training by computing machine and can, at any time for student provides more training chance, reduce the danger that may contact high pressure in training process.But existing emulation training technology utilizes merely computing machine to carry out pseudo operation, student contacts intuitively and is familiar with real electrical test testing apparatus neither one.Therefore, how in the environment of safety, to strengthen student's perceptual knowledge, the practical operation technical ability that improves student remains present stage problem demanding prompt solution.
In the Chinese patent application that is 201210346065.2 at application number, a kind of electrical test equipment analogue means is disclosed.This device is made up of MCU processing unit, display unit, mini-printer, button, data communication units data communication units, control communication unit etc., can be combined with high voltage electric equipment realistic model, to realize entity simulation training.But the weak point of this technical scheme is student and cannot carries out the practical operations such as wiring.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of Intelligent transformer shunting switch simulation testing device.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Intelligent transformer shunting switch simulation testing device, comprises main control module, communication module, test circuit module and key-press module;
Storage unit and output/input interface that described main control module comprises microprocessor, is connected with described microprocessor; Described test circuit module comprises power circuit, microprocessor controls circuit, serial port circuit and digital signal transmission circuit;
Described main control module is connected with described test circuit module, described communication module and described key-press module respectively;
Described test circuit module is sent to described main control module after the test data conversion of the tested product in outside is processed;
The test data of external host device is sent to described main control module by described communication module.
Wherein more preferably, described in the control of described microprocessor controls circuit, serial port circuit receives the test data of outside tested product, described test data is sent to described digital signal transmission circuit through the conversion of described serial port circuit, and test data is sent to described main control module by digital signal transmission circuit described in the control of described microprocessor controls circuit.
Intelligent transformer shunting switch simulation testing device provided by the utility model operates under low-pressure state, can simulate various electric faults, especially be applicable to being applied in the emulation training of electric system, not only can temper student's actual operational capacity, can also cultivate student's fault analysis ability.
Accompanying drawing explanation
Fig. 1 is the guidance panel schematic diagram of this Intelligent transformer shunting switch simulation testing device;
Fig. 2 is the structural drawing of this Intelligent transformer shunting switch simulation testing device;
Fig. 3 is the principle schematic of test circuit module;
Fig. 4 is in signal transmitting and receiving circuit, the schematic diagram of data transmitting channel;
Fig. 5 is in signal transmitting and receiving circuit, the schematic diagram of data receiving channel;
Fig. 6 is the process flow diagram of the utility model deal with data;
Fig. 7 is the process flow diagram that the utility model and external host device realize fault simulation.
Embodiment
Intelligent transformer shunting switch simulation testing device provided by the utility model (abbreviation simulation testing device), is mainly used in Hi-pot test simulation work.As shown in Figure 1, the guidance panel of this simulation testing device comprises three-phase and neutral point, instrument ground end, display screen, printer and supply socket and the switch of antenna end, connection transformer.Wherein, connection terminal A, B, C, N connect respectively the p-wire of Huang, the different colours such as green, red, black.
As shown in Figure 2, this simulation testing device mainly comprises main control module, communication module, test circuit module, print module, key-press module and display module.Wherein main control module is connected with test circuit module, communication module, display module, print module and key-press module respectively, is the core of this simulation testing device, for coordinating cooperatively interacting between modules; Test circuit module and outside tested product (sub-connecting switch of transformer) carry out data communication, after its test data conversion is processed, are sent to main control module; Communication module and external host device are carried out data communication, and the test data of external host device is sent to main control module.Main control module, according to the configuration information of key-press module, is processed rear demonstration printing to the test data of test circuit module or communication module transmission.
In an embodiment of the present utility model, main control module adopts ARM6410 development board, and it comprises microprocessor, storage unit and input/output interface.Microprocessor is connected with storage unit and output/input interface.Wherein storage unit preferably adopts the DDR RAM of 256M and the SLG Nand FLASH of 1G.DDR RAM is used for depositing various configurators, and Nand FLASH is for storing the operating system of the simulation testing device that user writes.The utility model preferably adopts (SuSE) Linux OS.Input/output interface comprises the interfaces such as I/O mouth, serial ports and USB, for supporting peripherals.For example USB interface connects the USB wireless interface module of communication module, and I/O mouth connects key-press module, supports that user arranges this simulation testing device.A serial ports connects print module, is responsible for printing test data, another one serial ports connecting test circuit module, the transmitting-receiving of completing circuit status data.
Communication module is the data interaction with external host device for this simulation testing device.Communication mode can be wire communication, can be also radio communication.The utility model preferably adopts Wi-Fi mode and the external host device in radio communication to communicate, and it is advantageous that external host device can carry out Long-distance Control to this simulation testing device by Wi-Fi mode.
As shown in Figure 3, test circuit module comprises microprocessor controls circuit, power circuit, serial port circuit and 24V digital signal transmission circuit.Wherein, microprocessor controls circuit is connected with power circuit, serial port circuit and 24V digital signal transmission circuit respectively.The core component of microprocessor controls circuit is single-chip microcomputer, and this single-chip microcomputer preferably adopts atmel128 microprocessor.Power circuit is each circuit module power supply, for 24V digital signal transmission circuit provides 24V supply voltage, for other circuit modules such as microprocessor controls circuit, serial port circuit provide 5V supply voltage.24V digital signal transmission circuit is controlled and Information Monitoring by single-chip microcomputer IO, comprises 16 receiving cable He16 road, road sendaisles.Fig. 4 and Figure 5 shows that 16 circuit-switched data sendaisles and 16 circuit-switched data receiving cable circuit diagrams, the light-coupled isolation chip signal wherein adopting is TPL521-4.Serial port circuit is 232 serial port circuits preferably, carry out data communication for the tested product in outside and this simulation testing device.
In addition, test circuit module comprises emulation testing and two functional modules of fault simulation.Wherein, emulation testing module comprises to be measured and excessively waveform demonstration measurement transit time, transition resistance.Fault simulation module comprises that the shunting switch spring pressure of transformer is inadequate, tapping switch contact Surface Contact is bad, tapping switch contact contacts the detecting informations such as electric discharge that do not put in place.These two functional modules can adopt FPGA or firmware mode to realize.In the time that this simulation testing device is tested, need user to set trigger voltage, measuring current, filtering selection and test mode.After the test data of main control module reception external host device, call corresponding shunting switch test procedure data are carried out to Treatment Analysis.In the time of fault simulation, external host device is set fault type and is sent fault data, and main control module receives fault data, calls fault simulator according to the failure message in fault simulation module, analyzes, judges current fault type and show.
In addition, this simulation testing device also comprises display module for supporting display device and the print module for back printer.
Below the principle of work of this simulation testing device is elaborated.This simulation testing device can carry out test and the fault simulation of sub-connecting switch of transformer.
The test process of paper sub-connecting switch of transformer: the tested product in outside and this simulation testing device are carried out to wiring by test cable.After wiring, go up electrical measurement, enter the test interface of this simulation testing device, set relevant electric current, voltage parameter.As shown in Figure 6, this device judges whether communication is interrupted: if communication disruption can be waited for always.If communication is normal, can, according to the test model of setting, corresponding parameter be sent to outside tested product.The test data of outside tested product, through the processing such as serial ports conversion, data acquisition of test circuit module, is sent to main control module by test data.Selection information in main control module calls test circuit module, and according to relevant selection information, call the data processor relevant to selection information.Final result shows by display screen and prints.
Next introduces the test process of simulation test and fault simulation, as shown in Figure 7.Upper electrical testing, enters after the test interface of this simulation testing device, arranges and sets trigger voltage, measuring current, filtering selection and test mode.Main control module is sent to external host device by correlation parameter by communication module.After the parameter that external host device reception simulation testing device issues, the model of parameter being put into sub-connecting switch of transformer proving installation contrasts, analyzes.Judge the current fault that whether arranges: if the fault of setting, external host device will issue fault test data; If most common failure (normal condition) is not set, external host device issues proper testing data.Test data is issued to simulation testing device by the mode of radio communication.Simulation testing device receives test data, and test data is transferred to main control module, carries out data processing.Main control module receives after data, and it is analyzed, is processed.If what receive is normal data, normal test result is shown and printed; If what receive is fault data, simulation testing device shows the electrical value under malfunction and fault type print.
Above Intelligent transformer shunting switch simulation testing device provided by the utility model is had been described in detail, but be not limitation of the utility model.Therefore,, for one of ordinary skill in the art, any apparent change of under the prerequisite that does not deviate from the utility model connotation, it being done, all will form the utility model infringement of patent right, will bear corresponding legal liabilities.
Claims (4)
1. an Intelligent transformer shunting switch simulation testing device, is characterized in that comprising main control module, communication module, test circuit module and key-press module;
Storage unit and output/input interface that described main control module comprises microprocessor, is connected with described microprocessor; Described test circuit module comprises power circuit, microprocessor controls circuit, serial port circuit and digital signal transmission circuit;
Described main control module is connected with described test circuit module, described communication module and described key-press module respectively;
Described test circuit module is sent to described main control module after the test data conversion of the tested product in outside is processed;
The test data of external host device is sent to described main control module by described communication module.
2. Intelligent transformer shunting switch simulation testing device as claimed in claim 1, is characterized in that:
Described in the control of described microprocessor controls circuit, serial port circuit receives the test data of outside tested product, described test data is sent to described digital signal transmission circuit through the conversion of described serial port circuit, and test data is sent to described main control module by digital signal transmission circuit described in the control of described microprocessor controls circuit.
3. Intelligent transformer shunting switch simulation testing device as claimed in claim 1, is characterized in that:
Described Intelligent transformer shunting switch simulation testing device also comprises print module, and described print module connects described main control module.
4. Intelligent transformer shunting switch simulation testing device as claimed in claim 1, is characterized in that:
Described Intelligent transformer shunting switch simulation testing device also comprises display module, and described display module connects described main control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445457.4U CN203606469U (en) | 2013-07-24 | 2013-07-24 | Simulation test device for intelligent transformer tapping switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445457.4U CN203606469U (en) | 2013-07-24 | 2013-07-24 | Simulation test device for intelligent transformer tapping switch |
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| Publication Number | Publication Date |
|---|---|
| CN203606469U true CN203606469U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320445457.4U Expired - Fee Related CN203606469U (en) | 2013-07-24 | 2013-07-24 | Simulation test device for intelligent transformer tapping switch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831234A (en) * | 2017-11-29 | 2018-11-16 | 国网吉林省电力有限公司培训中心 | Mutual inductor electrical test emulates teaching aid |
| CN112816765A (en) * | 2020-08-28 | 2021-05-18 | 苏州灵成电气有限公司 | Intelligent transformer comprehensive parameter testing system |
-
2013
- 2013-07-24 CN CN201320445457.4U patent/CN203606469U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831234A (en) * | 2017-11-29 | 2018-11-16 | 国网吉林省电力有限公司培训中心 | Mutual inductor electrical test emulates teaching aid |
| CN112816765A (en) * | 2020-08-28 | 2021-05-18 | 苏州灵成电气有限公司 | Intelligent transformer comprehensive parameter testing system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20140724 |
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| EXPY | Termination of patent right or utility model |