CN103399229A - Testing device for protection outlet of relay protection device - Google Patents
Testing device for protection outlet of relay protection device Download PDFInfo
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- CN103399229A CN103399229A CN2013103253445A CN201310325344A CN103399229A CN 103399229 A CN103399229 A CN 103399229A CN 2013103253445 A CN2013103253445 A CN 2013103253445A CN 201310325344 A CN201310325344 A CN 201310325344A CN 103399229 A CN103399229 A CN 103399229A
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Abstract
The invention relates to a testing device for a protection outlet of a relay protection device. The testing device comprises a shell, wherein a plurality of testing modules are arranged in the shell in parallel; the outer wall of the shell is provided with a grounding terminal and a measuring terminal which are correspondingly connected with each testing module respectively; each testing module comprises a voltage measuring unit and a current limiting resistor R1; the voltage measuring unit is connected in series between the grounding terminal and the measuring terminal for measuring outlet voltage; the current limiting resistor R1 is used for reducing a loop current value; an output end of the voltage measuring unit is coupled with an audible and visual alarm control unit; and an output end of the audible and visual alarm control unit is connected with an indicator lamp loop and a voice alarm loop respectively. According to the testing device, the protection outlets of a plurality of relay protection devices can be simultaneously measured; the testing device is simple and easy; the testing result is clear; and the service life of a breaker connected with the protection outlet is effectively prolonged.
Description
Technical field
The present invention relates to the relay protection field, particularly a kind of proving installation that is applied to protective relaying device protection outlet in electric system.
Background technology
Along with the high speed development of electric system, the electrical network scale grows stronger day by day, the more aobvious complexity of power system network structure, and the safety operation level that improves electric system seems particularly important.Due to the singularity of electric system, electric fault be inevitable.In the Operation of Electric Systems process, while if partial electric grid or electrical equipment accident occur, can not get effectively controlling, will inevitably cause destruction and large area blackout to the stabilization of power grids.The large electrical network of modernization is stronger to the dependence of relay protection, and is higher to the requirement of its action accuracy.
Protective relaying device is the important component part of electric system, and to guaranteeing the safe operation of electric system, Accident prevention occurs and key effect is played in expansion.Protective relaying device can in time react fault and the abnormal working position of electrical equipment; and move in isolating switch automatically, rapidly, selectively according to the electric fault kind; by faulty equipment from system, excising; assurance equipment continues normal operation; accident is limited in to minimum zone; raising system reliability of operation, guarantee to greatest extent to user security, power supply continuously.In view of the importance of relay protection, it is regularly carried out to preventive trial and be very important.
The protection pressing plate is the tie of protective relaying device contact external wiring; purposes is equivalent to a switch; the effect that has access and disconnect; be used for dropping into or exiting corresponding defencive function; therefore protect the defencive function that normally whether is directly connected to of pressing plate to export and can normally play a role with action, therefore extremely important.When the Reliability of Microprocessor to protective relaying device is tested, need to test the protection pressing plate outlet of protective relaying device.For guaranteeing operating personnel's safety, when outlet is tested to the protection pressing plate, at first answer measuring and protecting pressing plate outlet lower end voltage-to-ground, and then the voltage-to-ground of measuring and protecting pressing plate outlet upper end.When the protection pressing plate is in switch, divide position time, the top and bottom voltage-to-ground of protection pressing plate outlet is zero, so between top and bottom, also there is no voltage.When the protection pressing plate was in the switch co-bit, the lower end voltage-to-ground was zero, and upper end has negative voltage over the ground, so also had voltage difference between top and bottom.
Yet, because the protection pressing plate of protective relaying device is more, in the process of protecting pressing plate outlet test, need to protect the outlet of pressing plate to test by end to each, not only operating process is loaded down with trivial details, wastes time and energy; And frequent starting with close and protect the electrical equipments such as isolating switch that pressing plate outlet is connected or switch, 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 protective relaying device protection outlet in a kind of electric system; can measure simultaneously the protection outlet of several protective relaying devices; simple; test result is very clear, and effectively extends the serviceable life of the isolating switch that is connected with the protection outlet.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Protective relaying device protection outlet proving installation, comprise casing, in casing, has been arranged in parallel several test modules, on the outer wall of casing, is provided with the ground terminal and the measurement terminal that with each test module, are connected respectively; Described test module comprises and being connected in series between ground terminal and measurement terminal be used to the voltage measurement unit of measuring outlet voltage and be used to reducing the current-limiting resistance R1 of loop current value, the output terminal of described voltage measurement unit is coupled with the sound and light alarm control module, and the output terminal of sound and light alarm control module is connected with the audio alert loop with pilot lamp loop respectively.
Improvement of the present invention is: described voltage measurement unit is the light coupling relay U that is connected in series between measurement terminal J and current-limiting resistance R1; Described sound and light alarm control module comprises direct supply DC and is connected in series in resistance R 2 and the auxiliary reclay in the DC power supply loop, and the coupled end of light coupling relay U is connected in series between resistance R 2 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 auxiliary reclay normally opened contact KA2 and the pilot lamp RL that is connected in series in the DC power supply loop; Described audio alert loop comprises auxiliary reclay normally opened contact KA3 and the phonetic alarm BL that is connected in the pilot lamp loop two ends in parallel; The output terminal of described direct supply DC is connected with K switch and the reset key F that controls power connection and shutoff.
Improvement of the present invention is: in described audio alert loop, between auxiliary reclay normally opened contact KA3 and phonetic alarm BL, be connected in series to be useful on and control the phonetic alarm alarm and send the time relay KT of time.
Improvement of the present invention is: the triggering and conducting time of the time relay KT in described each test module that is arranged in parallel increases 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 having adopted technique scheme, the technical progress that the present invention obtains is:
The present invention is when carrying out protective relaying device protection outlet test, can utilize test module to measure simultaneously the terminal voltage value of several protection pressing plate outlets, this device to test protection outlet is simple, lamplight pointing and voice suggestion 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 a plurality of outlets of protective relaying device simultaneously; therefore in test process, only need action once; avoid other electrical equipment repetitive operations that are connected with protective relaying device, further extended the serviceable life of the electrical equipment that is connected with the protection outlet.
Audio alert of the present invention is provided with time relay KT in loop, can pass through the triggering and conducting time of setup times relay K T as the case may be, control the time that phonetic alarm BL sends warning, make phonetic alarm send warning at different time points.The form of the triggering and conducting set of time of time relay KT in each test module that the present invention is arranged in parallel for increasing progressively successively, so that the alarm BL of each test module sends alerting signal successively, avoided the mixed and disorderly phenomenon of prompting simultaneously.
All acousto-optic warning units of the present invention, pilot lamp loop and audio alert loop share a direct supply DC, can effectively save the energy.
The 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
Below in conjunction with the drawings and the specific embodiments, the present invention is done further to describe in detail:
The structural representation of protective relaying device protection outlet proving installation; as shown in Figure 1; comprise insulation case; several test modules in casing, have been arranged in parallel; on the outer wall of casing, be provided with five pairs of measurement terminal and ground terminal, each test module is connected with ground terminal with a pair of measurement terminal respectively.
The structural representation of test module of the present invention, as shown in Figure 2, comprise 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 that is connected in series, and current-limiting resistance R1, for the current value of restricted passage voltage measurement unit, prevents from burning voltage measurement unit because of overcurrent; After voltage measurement unit is connected in series to the endpiece of protective relaying device, for detection of 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 respectively in pilot lamp loop and audio alert loop, be used to controlling pilot lamp loop and report to the police in the audio alert loop.
The circuit diagram of test module in the present embodiment, as shown in Figure 3, voltage measurement unit is the light coupling relay U that is connected in series between measurement terminal J and current-limiting resistance R1.The sound and light alarm control module comprises direct supply DC and is connected in series in resistance R 2 and the auxiliary reclay in the DC power supply loop, and the coupled end of light coupling relay U is connected in series between resistance R 2 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 consists of the auxiliary reclay normally opened contact KA2 and the pilot lamp RL that are connected in series in the DC power supply loop.The audio alert loop is connected in series and is formed by the auxiliary reclay normally opened contact KA3, the time relay KT that are connected in the pilot lamp loop two ends in parallel and phonetic alarm BL.The output terminal of direct supply DC is connected with K switch and the reset key F that controls power connection and shutoff; All sound and light alarm control modules, pilot lamp loop and audio alert loop share a direct supply DC.
While using protective relaying device protection outlet proving installation to protect the terminal voltage of output clamping to measure, to measure simultaneously five terminal voltages of protecting output clampings as example.For guaranteeing safety, general first measuring and protecting pressing plate outlet lower end voltage-to-ground, and then measuring and protecting pressing plate outlet upper end voltage over the ground.At first, by five ground terminal G ground connection, the lower end of five tested pressing plates is connected respectively on 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 according to increasing progressively successively the form setting; Then, the connection terminal of direct supply both positive and negative polarity is communicated with to direct supply DC, in the present embodiment, the magnitude of voltage of direct supply DC output is ± 6V.
While starting to measure, by the K switch closure of each test module.When an end of tested protection pressing plate outlet has voltage, light coupling relay conducting in voltage measurement unit, the sound and light alarm control module conducting that is of coupled connections with voltage measurement unit, auxiliary reclay coil KA obtains electric, auxiliary reclay normally opened contact KA1 closure, the sound and light alarm control module is in conducting state; Auxiliary reclay normally opened contact KA2 closure on corresponding pilot lamp loop, the pilot lamp loop conducting, pilot lamp RL lights; Auxiliary reclay normally opened contact KA3 closure on the audio alert loop, the conducting of audio alert loop, time relay KT starts timing, and when timing arrived, phonetic alarm BL sent audio alert.Because 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 the audio alert signal successively.Survey crew is lighted the alerting signal with phonetic alarm according to pilot lamp, judges that tested protection pressing plate one end has voltage.When measurement is complete or abnormal conditions occur, can reset by reset key F.When an end of tested protection pressing plate outlet did 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, phonetic alarm can not send alerting signal.
Claims (5)
1. protective relaying device protection outlet proving installation, is characterized in that: comprise casing, in casing, be arranged in parallel several test modules, on the outer wall of casing, be provided with the ground terminal and the measurement terminal that with each test module, are connected respectively;
Described test module comprises and being connected in series between ground terminal and measurement terminal be used to the voltage measurement unit of measuring outlet voltage and be used to reducing the current-limiting resistance R1 of loop current value, the output terminal of described voltage measurement unit is coupled with the sound and light alarm control module, and the output terminal of sound and light alarm control module is connected with the audio alert loop with pilot lamp loop respectively.
2. protective relaying device protection according to claim 1 exports proving installation, and it is characterized in that: described voltage measurement unit is the light coupling relay U that is connected in series between measurement terminal J and current-limiting resistance R1; Described sound and light alarm control module comprises direct supply DC and is connected in series in resistance R 2 and the auxiliary reclay in the DC power supply loop, and the coupled end of light coupling relay U is connected in series between resistance R 2 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 auxiliary reclay normally opened contact KA2 and the pilot lamp RL that is connected in series in the DC power supply loop; Described audio alert loop comprises auxiliary reclay normally opened contact KA3 and the phonetic alarm BL that is connected in the pilot lamp loop two ends in parallel;
The output terminal of described direct supply DC is connected with K switch and the reset key F that controls power connection and shutoff.
3. protective relaying device according to claim 2 protection outlet proving installation is characterized in that: in described audio alert loop, between auxiliary reclay normally opened contact KA3 and phonetic alarm BL, be connected in series to be useful on and control phonetic alarm BL alarm and send the time relay KT of time.
4. protective relaying device protection according to claim 3 exports proving installation, and it is characterized in that: the triggering and conducting time of the time relay KT in described each test module that is arranged in parallel increases progressively successively.
5. the described protective relaying device protection of according to claim 2 to 4 any one exports proving installation, and it is characterized in that: all sound and light alarm control modules, 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310325344.5A CN103399229B (en) | 2013-07-30 | 2013-07-30 | Device for protection outlet of relay protection proving installation |
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| CN103399229A true CN103399229A (en) | 2013-11-20 |
| CN103399229B CN103399229B (en) | 2016-03-30 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792451A (en) * | 2014-01-29 | 2014-05-14 | 中国能源建设集团广东火电工程总公司 | Detection circuit and instrument for relay protective device protective outlet loop |
| CN103812085A (en) * | 2014-02-28 | 2014-05-21 | 国家电网公司 | Lockout device for preventing misoperation of active current pressing plate under condition of current |
| CN105652199A (en) * | 2016-04-20 | 2016-06-08 | 国家电网公司 | Detection device of transformer substation relay protection outlet |
| CN107748315A (en) * | 2017-09-14 | 2018-03-02 | 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 |
| CN109521311A (en) * | 2019-01-17 | 2019-03-26 | 国网江苏省电力有限公司淮安供电分公司 | Relay protection multiple exit pressing plate measuring instrument |
| 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 |
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| 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 |
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| 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 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792451A (en) * | 2014-01-29 | 2014-05-14 | 中国能源建设集团广东火电工程总公司 | Detection circuit and instrument for relay protective device protective outlet loop |
| 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 |
| CN103812085A (en) * | 2014-02-28 | 2014-05-21 | 国家电网公司 | Lockout device for preventing misoperation of active current pressing plate under condition of current |
| 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 |
| CN107748315A (en) * | 2017-09-14 | 2018-03-02 | 国家电网公司 | A kind of Distribution Network Failure active forewarning method |
| 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 |
| CN109521311A (en) * | 2019-01-17 | 2019-03-26 | 国网江苏省电力有限公司淮安供电分公司 | Relay protection multiple exit pressing plate measuring instrument |
| 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 |
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|---|---|
| CN103399229B (en) | 2016-03-30 |
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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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