CN103399229B - Device for protection outlet of relay protection proving installation - Google Patents
Device for protection outlet of relay protection proving installation Download PDFInfo
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- CN103399229B CN103399229B CN201310325344.5A CN201310325344A CN103399229B CN 103399229 B CN103399229 B CN 103399229B CN 201310325344 A CN201310325344 A CN 201310325344A CN 103399229 B CN103399229 B CN 103399229B
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- 238000009434 installation Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 37
- 238000005259 measurement Methods 0.000 claims abstract description 31
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Abstract
The present invention relates to a kind of device for protection outlet of relay protection proving installation, comprise casing, in casing, be arranged in parallel several test modules, the outer wall of casing is provided with the ground terminal be connected respectively with each test module and measurement terminal; Test module comprises and being connected in series between ground terminal and measurement terminal for measuring the voltage measurement unit of exit potential and the current-limiting resistance R1 for reducing loop current value, the output terminal of voltage measurement unit is coupled with sound and light alarm control module, and the output terminal of sound and light alarm control module is connected with pilot lamp loop and audio alert loop respectively.The present invention can measure the protection exit of several protective relaying devices simultaneously, and simple, test result is very clear, and effectively extends the serviceable life of the isolating switch be connected with protection exit.
Description
Technical field
The present invention relates to relay protection field, particularly a kind of proving installation being applied to device for protection outlet of relay protection in electric system.
Background technology
Along with the high speed development of electric system, electrical network scale grows stronger day by day, the more aobvious complexity of power system network structure, and the safety operation level improving electric system seems particularly important.Due to the singularity of electric system, electric fault be inevitable.In Operation of Electric Systems process, if when partial electric grid or electrical equipment accident occurring and can not get effectively controlling, the destruction to the stabilization of power grids and large area blackout will inevitably be caused.Modernization bulk power grid is stronger to the dependence of relay protection, higher to the requirement of its action accuracy.
Protective relaying device is the important component part of electric system, and to the safe operation ensureing electric system, Accident prevention occurs and key effect is played in expansion.Protective relaying device can react fault and the abnormal working position of electrical equipment in time; and action is in isolating switch automatically, rapidly, selectively according to electric fault kind; faulty equipment is excised from system; guarantee equipment continues normal operation; accident is limited in minimum zone; improve the reliability of system cloud gray model, ensure to user security to greatest extent, power continuously.In view of the importance of relay protection, preventive trial is regularly carried out to it and is very important.
Protection pressing plate is the tie of protective relaying device contact external wiring; purposes is equivalent to a switch; the effect that there is access and disconnect; be used for dropping into or exiting corresponding defencive function; therefore pressing plate whether normal is protected to be directly connected to defencive function and can action export and normally play a role, therefore extremely important.When testing the Reliability of Microprocessor of protective relaying device, need to test the protection pressing plate outlet of protective relaying device.For ensureing the safety of operating personnel, when testing the outlet of protection pressing plate, first answer measuring and protecting pressing plate exit lower end voltage-to-ground, and then the voltage-to-ground of measuring and protecting pressing plate outlet upper end.In time protecting pressing plate to be in switch point position, the top and bottom voltage-to-ground of protection pressing plate outlet is zero, does not therefore also have voltage between top and bottom.When protecting pressing plate to be in switch co-bit, lower end voltage-to-ground is zero, and upper end has negative voltage over the ground, therefore also there is voltage difference between top and bottom.
But because the protection pressing plate of protective relaying device is more, carrying out protecting in the process of pressing plate outlet test, need to test by end the outlet of each protection pressing plate, not only operating process is loaded down with trivial details, wastes time and energy; And frequent starting exports with closedown and protection pressing plate the electrical equipment such as isolating switch or switch be connected, and will affect its performance, and then cause its life-span greatly to be reduced.
Summary of the invention
The technical issues that need to address of the present invention are to provide the proving installation of device for protection outlet of relay protection in a kind of electric system; the protection exit of several protective relaying devices can be measured simultaneously; simple; test result is very clear, and effectively extends the serviceable life of the isolating switch be connected with protection exit.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Device for protection outlet of relay protection proving installation, comprises casing, has been arranged in parallel several test modules in casing, and the outer wall of casing is provided with the ground terminal be connected respectively with each test module and measurement terminal; Described test module comprises and being connected in series between ground terminal and measurement terminal for measuring the voltage measurement unit of exit potential and the current-limiting resistance R1 for reducing loop current value, the output terminal of described voltage measurement unit is coupled with sound and light alarm control module, and the output terminal of sound and light alarm control module is connected with pilot lamp loop and audio alert loop respectively.
Improvement of the present invention is: described voltage measurement unit is be connected in series in the light coupling relay U between measurement terminal J and current-limiting resistance R1; Described sound and light alarm control module comprises direct supply DC and the resistance R2 that is connected in series in DC power supply loop and auxiliary reclay, and the coupled end of light coupling relay U is connected in series between resistance R2 and auxiliary reclay coil KA; Auxiliary reclay normally opened contact KA1 is connected in the coupled end of light coupling relay U in parallel; Described pilot lamp loop comprises and is connected in series in auxiliary reclay normally opened contact KA2 in DC power supply loop and pilot lamp RL; Described audio alert loop comprises the auxiliary reclay normally opened contact KA3 and phonetic alarm BL that are connected in pilot lamp loop two ends in parallel; The output terminal of described direct supply DC is connected with and controls power supply connection and the K switch turned off and reset key F.
Improvement of the present invention is: be connected in series with the time relay KT sending the time for controlling phonetic alarm alarm in described audio alert loop between auxiliary reclay normally opened contact KA3 and phonetic alarm BL.
Improvement of the present invention is: described in triggering and conducting time of time relay KT in each test module of being arranged in parallel increase progressively successively.
Further improvement of the present invention is: all sound and light alarm control modules, pilot lamp loop and audio alert loop share a direct supply DC.
Owing to have employed technique scheme, the technical progress that the present invention obtains is:
The present invention is when carrying out device for protection outlet of relay protection test, test module can be utilized to measure the terminal voltage value of several protection pressing plate outlets simultaneously, this device to test protection exit is simple, lamplight pointing and voice message are carried out to test result in described pilot lamp loop and audio alert loop, make test result very clear; Because the present invention can test multiple outlets of protective relaying device simultaneously; therefore action is only needed once in test process; avoid other electrical equipment repetitive operations be connected with protective relaying device, extend the serviceable life of the electrical equipment be connected with protection exit further.
Time relay KT is provided with in audio alert loop of the present invention, can as the case may be by the triggering and conducting time of setup times relay K T, control the time that phonetic alarm BL sends warning, make phonetic alarm can send warning at different time points.The triggering and conducting set of time of the time relay KT in each test module that the present invention is arranged in parallel is the form increased progressively successively, so that the alarm BL of each test module sends alerting signal successively, avoids the mixed and disorderly phenomenon simultaneously pointed out.
All acousto-optic warning units of the present invention, pilot lamp loop and audio alert loop share a direct supply DC, can effective economize energy.
Accompanying drawing explanation
Fig. 1: structural representation of the present invention;
Fig. 2: the structural representation of test module of the present invention;
Fig. 3: the circuit diagram of test module of the present invention.
Embodiment
Do further to describe in detail to the present invention below in conjunction with the drawings and the specific embodiments:
The structural representation of device for protection outlet of relay protection proving installation; as shown in Figure 1; comprise insulation case; several test modules have been arranged in parallel in casing; the outer wall of casing is provided with five pairs of measurement terminal and ground terminal, each test module is connected with a pair measurement terminal and ground terminal respectively.
The structural representation of test module of the present invention, as shown in Figure 2, comprises voltage measurement unit, sound and light alarm control module, pilot lamp loop and audio alert loop.One end of voltage measurement unit is connected with measurement terminal, and the other end is connected with ground terminal G by the current-limiting resistance R1 be connected in series, and current-limiting resistance R1 is used for the current value of restricted passage voltage measurement unit, prevents because overcurrent burns voltage measurement unit; After voltage measurement unit is connected in series to the endpiece of protective relaying device, for detecting the magnitude of voltage of endpiece.Sound and light alarm control module and voltage measurement unit are of coupled connections, and the output terminal of sound and light alarm control module is connected in series in pilot lamp loop and audio alert loop respectively, for controlling pilot lamp loop and report to the police in audio alert loop.
The circuit diagram of test module in the present embodiment, as shown in Figure 3, voltage measurement unit is be connected in series in the light coupling relay U between measurement terminal J and current-limiting resistance R1.Sound and light alarm control module comprises direct supply DC and the resistance R2 that is connected in series in DC power supply loop and auxiliary reclay, and the coupled end of light coupling relay U is connected in series between resistance R2 and auxiliary reclay coil KA; The normally opened contact KA1 of auxiliary reclay is connected in the coupled end of light coupling relay U in parallel.Pilot lamp loop is made up of the auxiliary reclay normally opened contact KA2 be connected in series in DC power supply loop and pilot lamp RL.Audio alert loop is connected in series by auxiliary reclay normally opened contact KA3, the time relay KT and phonetic alarm BL that are connected in pilot lamp loop two ends in parallel and forms.The output terminal of direct supply DC is connected with and controls power supply connection and the K switch turned off and reset key F; All sound and light alarm control modules, pilot lamp loop and audio alert loop share a direct supply DC.
When the terminal voltage using device for protection outlet of relay protection proving installation to carry out protection exit pressing plate is measured, to measure the terminal voltage of five protection exit pressing plates simultaneously.For ensureing safety, general first measuring and protecting pressing plate exit lower end voltage-to-ground, and then measuring and protecting pressing plate outlet upper end voltage over the ground.First, by five ground terminal G ground connection, the lower end of tested five pressing plates is connected respectively in five measurement terminal; Secondly, set the turn on delay time of the time relay KT in corresponding five test modules, the triggering and conducting time of each time relay KT is arranged according to increasing progressively form successively; Then, the connection terminal of direct supply both positive and negative polarity is communicated with direct supply DC, in the present embodiment, the magnitude of voltage that direct supply DC exports is ± 6V.
When starting to measure, the K switch of each test module is closed.When there is voltage one end of tested protection pressing plate outlet, light coupling relay conducting in voltage measurement unit, the sound and light alarm control module conducting be of coupled connections with voltage measurement unit, auxiliary reclay coil KA obtains electric, auxiliary reclay normally opened contact KA1 closes, and sound and light alarm control module is in conducting state; Auxiliary reclay normally opened contact KA2 on corresponding pilot lamp loop closes, pilot lamp loop conducting, and pilot lamp RL lights; Auxiliary reclay normally opened contact KA3 on audio alert loop closes, the conducting of audio alert loop, and time relay KT starts timing, and when timing arrives, phonetic alarm BL sends audio alert.Because the turn on delay time of the time relay KT of five test modules increases progressively successively, therefore the phonetic alarm BL of five test modules sends audio alert signal successively.Survey crew lights the alerting signal with phonetic alarm according to pilot lamp, judges that there is voltage tested protection pressing plate one end.When measurement is complete or when there are abnormal conditions, can reset by reset key F.When one end of tested protection pressing plate outlet does not have voltage, photoelectrical coupler can not conducting, and the auxiliary reclay coil KA of corresponding sound and light alarm control module can not obtain electric, therefore pilot lamp can not be lighted, and phonetic alarm can not send alerting signal.
Claims (4)
1. device for protection outlet of relay protection proving installation, is characterized in that: comprise casing, has been arranged in parallel several test modules in casing, and the outer wall of casing is provided with the ground terminal be connected respectively with each test module and measurement terminal;
Described test module comprises and being connected in series between ground terminal and measurement terminal for measuring the voltage measurement unit of exit potential and the current-limiting resistance R1 for reducing loop current value, the output terminal of described voltage measurement unit is coupled with sound and light alarm control module, and the output terminal of sound and light alarm control module is connected with pilot lamp loop and audio alert loop respectively;
Described voltage measurement unit is be connected in series in the light coupling relay U between measurement terminal and current-limiting resistance R1; Described sound and light alarm control module comprises direct supply DC and the resistance R2 that is connected in series in DC power supply loop and auxiliary reclay, and the coupled end of light coupling relay U is connected in series between resistance R2 and auxiliary reclay coil KA; Auxiliary reclay normally opened contact KA1 is connected in the coupled end of light coupling relay U in parallel;
Described pilot lamp loop comprises and is connected in series in auxiliary reclay normally opened contact KA2 in DC power supply loop and pilot lamp RL; Described audio alert loop comprises the auxiliary reclay normally opened contact KA3 and phonetic alarm BL that are connected in pilot lamp loop two ends in parallel;
The output terminal of described direct supply DC is connected with and controls direct supply DC connection and the K switch turned off and reset key F.
2. device for protection outlet of relay protection proving installation according to claim 1, is characterized in that: be connected in series with the time relay KT sending the time for controlling phonetic alarm BL alarm in described audio alert loop between auxiliary reclay normally opened contact KA3 and phonetic alarm BL.
3. device for protection outlet of relay protection proving installation according to claim 2, is characterized in that: described in triggering and conducting time of time relay KT in each test module of being arranged in parallel increase progressively successively.
4. the device for protection outlet of relay protection proving installation according to any one of claims 1 to 3, is characterized in that: described sound and light alarm control module, pilot lamp loop and audio alert loop share a direct supply DC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310325344.5A CN103399229B (en) | 2013-07-30 | 2013-07-30 | Device for protection outlet of relay protection proving installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310325344.5A CN103399229B (en) | 2013-07-30 | 2013-07-30 | Device for protection outlet of relay protection proving installation |
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| Publication Number | Publication Date |
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| CN103399229A CN103399229A (en) | 2013-11-20 |
| CN103399229B true CN103399229B (en) | 2016-03-30 |
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| CN201310325344.5A Active CN103399229B (en) | 2013-07-30 | 2013-07-30 | Device for protection outlet of relay protection proving installation |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792451B (en) * | 2014-01-29 | 2016-09-28 | 中国能源建设集团广东火电工程总公司 | A kind of relay protection protection exit loop detection circuit and instrument |
| CN103812085B (en) * | 2014-02-28 | 2016-06-29 | 国家电网公司 | Active electric current pressing plate has stream anti-misoperation locking device |
| CN105652199A (en) * | 2016-04-20 | 2016-06-08 | 国家电网公司 | Detection device of transformer substation relay protection outlet |
| CN107748315B (en) * | 2017-09-14 | 2019-09-27 | 国家电网公司 | A kind of Distribution Network Failure active forewarning method |
| CN108802598A (en) * | 2018-05-29 | 2018-11-13 | 国网河南省电力公司检修公司 | A kind of 1000 kilovolts of extra-high voltage series compensation protection exit loop test methods |
| CN110542805A (en) * | 2018-05-29 | 2019-12-06 | 国网河南省电力公司检修公司 | comprehensive relay protection outlet loop tester |
| CN109521311B (en) * | 2019-01-17 | 2023-10-13 | 国网江苏省电力有限公司淮安供电分公司 | Relay protection multi-outlet pressing plate measuring instrument |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202512211U (en) * | 2012-04-06 | 2012-10-31 | 宁夏电力公司银川供电局 | Timer for trip outlet time of relay protection device |
| CN103353556A (en) * | 2013-06-06 | 2013-10-16 | 国家电网公司 | Relay protection device pressboard outlet logic detection apparatus |
-
2013
- 2013-07-30 CN CN201310325344.5A patent/CN103399229B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202512211U (en) * | 2012-04-06 | 2012-10-31 | 宁夏电力公司银川供电局 | Timer for trip outlet time of relay protection device |
| CN103353556A (en) * | 2013-06-06 | 2013-10-16 | 国家电网公司 | Relay protection device pressboard outlet logic detection apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 主变压器保护跳闸矩阵出口辅助测试仪的研制与应用;杨博涛;《河北电力技术》;20130430;第32卷(第2期);第20-21页 * |
| 微机保护压板电压测量方式探讨;朱江;《电工技术》;20120731(第7期);第34-35页 * |
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Inventor after: Jiao Gefeng Inventor after: Gao Xiuxiang Inventor after: Dong Huiran Inventor after: Zhang Huijun Inventor after: Feng Huan Inventor after: Du Huilian Inventor before: Jiao Gefeng Inventor before: Gao Xiuxiang Inventor before: Dong Huiran |
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