CN203965536U - Microcomputer protective relay test macro - Google Patents
Microcomputer protective relay test macro Download PDFInfo
- Publication number
- CN203965536U CN203965536U CN201420316184.8U CN201420316184U CN203965536U CN 203965536 U CN203965536 U CN 203965536U CN 201420316184 U CN201420316184 U CN 201420316184U CN 203965536 U CN203965536 U CN 203965536U
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- China
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- test macro
- converter
- low pass
- protective relay
- work rate
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Abstract
The utility model discloses a kind of microcomputer protective relay test macro, it comprises three layers, wherein ground floor is that industrial computer, the second layer are that core communication control panel, the 3rd layer are work rate amplification system, described core communication control panel comprises programmable logic device, this programmable logic device is connected with bridge, storer, controller and converter respectively, and described bridge is connected with industrial computer; Described controller intercoms with isolation amplification low pass device respectively mutually with converter, and described isolation amplification low pass device and work rate amplification system are joined.This system architecture is simple; volume is little; can complete most site test calibration operations; can identify various types of relays (as electric current, voltage, inverse time lag, power direction, impedance, differential, low week, the same period, frequency, direct current, centre, time etc.) and Microcomputer Protection, and can simulate the instantaneity of various complexity, permanent, evolved fault to carry out total group test.
Description
Technical field
The utility model relates to a kind of microcomputer protective relay test macro, belongs to power technology field.
Background technology
In order to detect logic function and the acting characteristic of protective relaying device in electric system, the detection means that people adopt and checkout equipment be the constantly innovation along with the development of electric system and scientific and technological progress all.Relay-protection tester is as the important means of testing and the testing tool that detect protective relaying device, and due to the close-coupled with tested object, it is to reform along with the development of protective relaying device.Therefore,, before introducing the background and developing history of relay-protection tester, be necessary very much to understand the evolution of protective relaying device.
Along with the development of electric system carrier communication, occurred utilizing high frequency carrier electric current on high voltage transmission line to transmit and the carrier current protection of power transmission line two ends power direction or current phase relatively.Thereby the MICROWAVE PROTECTION that has occurred utilizing microwave transmission and compared power transmission line two ends fault electric parameters; At present, along with a large amount of employings of optical fiber communication in electric system, utilize the protective relaying device of optical-fibre channel just obtaining development rapidly and application widely.
As adopt manual ground connection or disconnect the contact of tested protective device and the fault that electric system is simulated in loop, to detect logic function and the acting characteristic of protective relaying device.Manual patch method cannot meet the requirement of present test certainly.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of microcomputer protective relay test macro; this system architecture is simple; volume is little; can complete most site test calibration operations; can identify various types of relays (as electric current, voltage, inverse time lag, power direction, impedance, differential, low week, the same period, frequency, direct current, centre, time etc.) and Microcomputer Protection, and can simulate the instantaneity of various complexity, permanent, evolved fault to carry out total group test.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of microcomputer protective relay test macro, it comprises three layers, wherein ground floor is that industrial computer, the second layer are that core communication control panel, the 3rd layer are work rate amplification system, it is characterized in that: described core communication control panel comprises programmable logic device, this programmable logic device is connected with bridge, storer, controller and converter respectively, and described bridge is connected with industrial computer; Described controller intercoms with isolation amplification low pass device respectively mutually with converter, and described isolation amplification low pass device and work rate amplification system are joined.
Described work rate amplification system comprises electric current and voltage power amplifier and passage pilot relay, described isolation amplification low pass device is divided into two-way output, first via outputting ten way switch amount signal is to passage pilot relay, and eight channel voltage current signals are exported to electric current and voltage power amplifier in another road.
Described passage pilot relay intercoms mutually with electric current and voltage power amplifier.
Their intercommunication of described bridge, storer, controller and converter.
The beneficial effects of the utility model are: this system architecture is simple; volume is little; can complete most site test calibration operations; can identify various types of relays (as electric current, voltage, inverse time lag, power direction, impedance, differential, low week, the same period, frequency, direct current, centre, time etc.) and Microcomputer Protection, and can simulate the instantaneity of various complexity, permanent, evolved fault to carry out total group test.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture schematic diagram;
Fig. 2 is work rate amplification system structural representation.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1-2, a kind of microcomputer protective relay test macro, it comprises three layers, wherein ground floor is that industrial computer 1, the second layer are that core communication control panel 2, the 3rd layer are work rate amplification system 3, core communication control panel comprises programmable logic device, this programmable logic device is connected with bridge, storer, controller and converter respectively, and bridge is connected with industrial computer 1; Controller intercoms with isolation amplification low pass respectively mutually with converter, and isolation amplification low pass device and work rate amplification system 3 are joined.
Work rate amplification system 3 comprises electric current and voltage power amplifier and passage pilot relay, isolation amplification low pass device is divided into two-way output, first via outputting ten way switch amount signal is to passage pilot relay, and eight channel voltage current signals are exported to electric current and voltage power amplifier in another road.
Passage pilot relay intercoms mutually with electric current and voltage power amplifier.
Their intercommunication of bridge, storer, controller and converter.
The utility model is sent to core communication control panel by test parameters and the order that user is set, controller in core communication control panel produces set electric parameters digital signal, and be sent to and in each converter, carry out digital-to-analog conversion, the simulating signal of converter output is sent into current/voltage power amplifying system through low-pass filtering and linear can't harm after isolation is amplified, the electric signal of being undertaken obtaining after power amplification by current/voltage power amplifying system is the test output signal that user sets, by this voltage, current signal is exported to passage pilot relay, the test of realization to protective relaying device.
When protective relaying device has action, can use out ingress to obtain the state of current protective relaying device, thereby appraise and decide logic function and the acting characteristic of protective relaying device.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. microcomputer protective relay test macro, it comprises three layers, wherein ground floor is that industrial computer, the second layer are that core communication control panel, the 3rd layer are work rate amplification system, it is characterized in that: described core communication control panel comprises programmable logic device, this programmable logic device is connected with bridge, storer, controller and converter respectively, and described bridge is connected with industrial computer; Described controller intercoms with isolation amplification low pass device respectively mutually with converter, and described isolation amplification low pass device and work rate amplification system are joined.
2. microcomputer protective relay test macro according to claim 1; it is characterized in that: described work rate amplification system comprises electric current and voltage power amplifier and passage pilot relay; described isolation amplification low pass device is divided into two-way output; first via outputting ten way switch amount signal is to passage pilot relay, and eight channel voltage current signals are exported to electric current and voltage power amplifier in another road.
3. microcomputer protective relay test macro according to claim 2, is characterized in that: described passage pilot relay intercoms mutually with electric current and voltage power amplifier.
4. microcomputer protective relay test macro according to claim 1, is characterized in that: their intercommunication of described bridge, storer, controller and converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316184.8U CN203965536U (en) | 2014-06-13 | 2014-06-13 | Microcomputer protective relay test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420316184.8U CN203965536U (en) | 2014-06-13 | 2014-06-13 | Microcomputer protective relay test macro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965536U true CN203965536U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420316184.8U Expired - Fee Related CN203965536U (en) | 2014-06-13 | 2014-06-13 | Microcomputer protective relay test macro |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203965536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866682A (en) * | 2016-03-09 | 2016-08-17 | 国网江西省电力科学研究院 | Network source coordination performance test method and system thereof |
| CN112505601A (en) * | 2020-10-30 | 2021-03-16 | 中国船舶重工集团公司第七0九研究所 | Calibration device and calibration method for electrical parameter measurement system of inertial MEMS device |
-
2014
- 2014-06-13 CN CN201420316184.8U patent/CN203965536U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105866682A (en) * | 2016-03-09 | 2016-08-17 | 国网江西省电力科学研究院 | Network source coordination performance test method and system thereof |
| CN112505601A (en) * | 2020-10-30 | 2021-03-16 | 中国船舶重工集团公司第七0九研究所 | Calibration device and calibration method for electrical parameter measurement system of inertial MEMS device |
| CN112505601B (en) * | 2020-10-30 | 2022-11-08 | 中国船舶重工集团公司第七0九研究所 | Calibration device and calibration method for electrical parameter measurement system of inertial MEMS device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141126 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |