CN102004202A - Microcomputer relay protection tester - Google Patents
Microcomputer relay protection tester Download PDFInfo
- Publication number
- CN102004202A CN102004202A CN 201010607660 CN201010607660A CN102004202A CN 102004202 A CN102004202 A CN 102004202A CN 201010607660 CN201010607660 CN 201010607660 CN 201010607660 A CN201010607660 A CN 201010607660A CN 102004202 A CN102004202 A CN 102004202A
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- CN
- China
- Prior art keywords
- power supply
- circuit
- input end
- relay protection
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to a microcomputer relay protection tester, relating to the technical field of production of electric power automation equipment relay protection testers, in particular to the technical field of production and manufacturing of the microcomputer relay protection testers. The microcomputer relay protection tester comprises a three-phase power supply input end and a test circuit respectively connected with the three-phase power supply input end, and also comprises a control power supply circuit and a power amplifier power supply isolation protection circuit. Because independent power supply and power amplifier power supply isolation protection are made on each phase current and voltage, when any one phase current or voltage fails, work of any other phase current and voltage can not be affected, a control power supply input to each test circuit can not be affected, and the tester is ensured to normally work.
Description
Technical field
The present invention relates to Electric Power Automation Equipment relay-protection tester production technical field, the particularly production of microcomputer protective relay tester, manufacturing technology field.
Background technology
Existing microcomputer protective relay tester can be tested traditional various relays and protective device, also can test various microcomputer protecting devices.But after the amplifier power supply of being everlasting breaks down, cause controlling power supply and break down, even cause whole instrument cisco unity malfunction.
Summary of the invention
The object of the invention is to design a kind of microcomputer protective relay tester that can guarantee instrument energy operate as normal.
The present invention includes three-phase power input end; and the test circuit that is connected respectively with three-phase power input end; also comprise control power circuit and amplifier power supply isolation protective circuit; the input end of described control power circuit is connected on the three-phase power input end; the output terminal of described control power circuit is connected with the input end of amplifier power supply isolation protective circuit, and the output terminal of described amplifier power supply isolation protective circuit is connected the power end of each test circuit.
The present invention is owing to done independent control power supply and amplifier power supply insulation blocking at each phase current, voltage; if break down at any phase current or voltage; can not influence other any phase current, voltage power supply; more can not influence the control power supply that is input to each test circuit, guarantee that tester can operate as normal.
Description of drawings
Fig. 1 is a kind of circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1, the present invention mainly is made up of with amplifier power supply isolation protective circuit 4 three-phase current input end 1, test circuit 2 and control power circuit 3.
Connect control power circuit 3 at three-phase power input end 1, the output terminal of control power circuit 3 is connected with the input end of amplifier power supply isolation protective circuit 4, and the output terminal of amplifier power supply isolation protective circuit 4 is connected the power end of each test circuit 2.
Claims (1)
1. microcomputer protective relay tester; comprise three-phase power input end; and the test circuit that is connected respectively with three-phase power input end; it is characterized in that also comprising control power circuit and amplifier power supply isolation protective circuit; the input end of described control power circuit is connected on the three-phase power input end; the output terminal of described control power circuit is connected with the input end of amplifier power supply isolation protective circuit, and the output terminal of described amplifier power supply isolation protective circuit is connected the power end of each test circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010607660 CN102004202A (en) | 2010-12-28 | 2010-12-28 | Microcomputer relay protection tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010607660 CN102004202A (en) | 2010-12-28 | 2010-12-28 | Microcomputer relay protection tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102004202A true CN102004202A (en) | 2011-04-06 |
Family
ID=43811726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010607660 Pending CN102004202A (en) | 2010-12-28 | 2010-12-28 | Microcomputer relay protection tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102004202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759710A (en) * | 2012-07-27 | 2012-10-31 | 苏州贝腾特电子科技有限公司 | Improved detection equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035720A (en) * | 1988-03-10 | 1989-09-20 | 天津大学 | Portable micro-computer controlled multifuncitonal tester of protective relay |
| CN101153884A (en) * | 2007-07-27 | 2008-04-02 | 杭州中恒电气股份有限公司 | Relay-protection steady-state digital moving die test system |
| CN201514448U (en) * | 2009-07-02 | 2010-06-23 | 上海市电力公司超高压输变电公司 | Integrated testing device of relay protection |
| CN101915881A (en) * | 2010-08-04 | 2010-12-15 | 国网电力科学研究院 | Real-time simulation test method of relay protection device |
-
2010
- 2010-12-28 CN CN 201010607660 patent/CN102004202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035720A (en) * | 1988-03-10 | 1989-09-20 | 天津大学 | Portable micro-computer controlled multifuncitonal tester of protective relay |
| CN101153884A (en) * | 2007-07-27 | 2008-04-02 | 杭州中恒电气股份有限公司 | Relay-protection steady-state digital moving die test system |
| CN201514448U (en) * | 2009-07-02 | 2010-06-23 | 上海市电力公司超高压输变电公司 | Integrated testing device of relay protection |
| CN101915881A (en) * | 2010-08-04 | 2010-12-15 | 国网电力科学研究院 | Real-time simulation test method of relay protection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759710A (en) * | 2012-07-27 | 2012-10-31 | 苏州贝腾特电子科技有限公司 | Improved detection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110406 |