CN104076277A - Tripping-prevention loop testing device for breaker - Google Patents
Tripping-prevention loop testing device for breaker Download PDFInfo
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- CN104076277A CN104076277A CN201410342924.XA CN201410342924A CN104076277A CN 104076277 A CN104076277 A CN 104076277A CN 201410342924 A CN201410342924 A CN 201410342924A CN 104076277 A CN104076277 A CN 104076277A
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Abstract
The invention discloses a tripping-prevention loop testing device for a breaker. The tripping-prevention loop testing device comprises a shell, a common power source terminal, a switching-on terminal, a trip terminal, a switch and a counting display screen, wherein the common power source terminal, the switching-on terminal, the trip terminal, the switch and the counting display screen are fixed on the shell. The switching-on terminal is connected with the trip terminal in series. The switch is provided with a first moving contact, a second moving contact, a first auxiliary contact and a second auxiliary contact. The trip terminal is connected to the first moving contact in series to form a trip loop. The common power source terminal is connected to the second moving contact in series to form a closing loop. The first auxiliary contact and the second auxiliary contact are respectively connected with the counting display screen and electrically connected to monitoring switch auxiliary contacts through wires to form a closed loop. When the switch is closed, the closing loop and the trip loop are connected at the same time. The tripping-prevention loop testing device for the breaker can ensure simultaneity of switching and closing operation of the breaker, and further avoid the phenomenon that a tripping-prevention loop is displayed to be normal in the manual testing process, while false operation occurs in the operation process.
Description
Technical field
The present invention relates to a kind of testing tool of power industry, relate in particular to a kind of Anti-jump Circuit of Breaker tester.
Background technology
Isolating switch (switch) is primary equipment important in electric system.In isolating switch (switch) operational process; isolating switch is after device closes a floodgate manually or automatically; if operation-control switch not involution or gauge tap contact, aut.eq. contact blocks; now protection action makes circuit breaker trip and " jump-close " phenomenon occurs repeatedly, and this phenomenon is called jump.Isolating switch generation jump fault is abnormally dangerous to isolating switch, easily causes mechanism's damage, even causes isolating switch blast, and the expansion that causes the accident, so must take locking measure.The jump fault of isolating switch is generally just to occur while connecting in combined floodgate, tripping operation simultaneously.When the design of anti-jump loop should make isolating switch occur jumping, circuit breaker closing is locked into trip position.
The method of the anti-jump loop function of traditional test isolating switch is first isolating switch to be placed in to " co-bit " by the hand mode of closing, with combined floodgate handgrip, make to close a floodgate contact always in on-state, touch the loop that makes breaker open operation simultaneously, observe isolating switch operation counter, when if anti-jump loop function is normal, isolating switch counter shows that numeral is " 1 ".Yet this traditional artificial verification method, need at least three people's operations, and need first man that combined floodgate handgrip is kept to on-state, second people provides trip signal simultaneously, the 3rd people goes to breaker mechanism body place to observe the action frequency of isolating switch counter.In this case, because there is the time error of artificial property, the test data discreteness of experiment is very large, differs greatly with practical operation situation, has strengthened the misoperation number of times of isolating switch in actual motion.
Summary of the invention
The problems referred to above in view of prior art exists, the object of the present invention is to provide a kind of Anti-jump Circuit of Breaker tester that can conveniently test Anti-jump Circuit of Breaker.
To achieve these goals, a kind of Anti-jump Circuit of Breaker tester provided by the invention, it is tested the anti-jump loop of isolating switch for accessing on isolating switch route protection screen terminal row, described route protection screen terminal row is provided with public power contact, closing circuit contact, monitor switch auxiliary contact and trip(ping) circuit contact, described anti-jump loop tester comprises housing, and be fixed on described housing and be connected to accordingly respectively the public power terminals on described route protection screen terminal row, combined floodgate terminals, tripping operation terminals, switch and counting display screen, wherein said combined floodgate terminals are connected with described tripping operation terminals, described switch has the first moving contact, the second moving contact, the first auxiliary contact and the second auxiliary contact, described tripping operation terminals are separately connected on described the first moving contact and form trip(ping) circuit, and described public power terminals are connected on and on described the second moving contact, form closing circuit, described the first auxiliary contact are connected with described counting display screen respectively with described the second auxiliary contact and are electrically connected to described supervision switch auxiliary contact formation closed-loop path by wire, when described switch is closed, described closing circuit and described trip(ping) circuit are connected simultaneously.
Anti-jump Circuit of Breaker tester of the present invention can guarantee the simultaneity of the breaking-closing operating of isolating switch, and then avoids showing normally when manual testing's anti-jump loop, and be in operation, the situation of misoperation occurs.And the test instrument of test both opens device anti-jump loop of the present invention can reduce human resources, a plurality of people's work can be concentrated on to Anti-jump Circuit of Breaker tester of the present invention, realize property simple to operate and the accuracy of test both opens device anti-jump loop.
Accompanying drawing explanation
Fig. 1 is the perspective view of Anti-jump Circuit of Breaker tester of the present invention;
Fig. 2 is the internal wiring connection diagram of Anti-jump Circuit of Breaker tester of the present invention;
Fig. 3 is the anti-jump control loop schematic diagram of Anti-jump Circuit of Breaker tester access mechanism case of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe technical scheme of the present invention in detail, it will be appreciated by those skilled in the art that the embodiment the following describes is only to exemplary illustration of the present invention, but not for it being made to any restriction.
Fig. 1 is the schematic perspective view of Anti-jump Circuit of Breaker tester of the present invention; Fig. 2 is the internal wiring connection diagram of Anti-jump Circuit of Breaker tester of the present invention; Fig. 3 is the anti-jump control loop schematic diagram of Anti-jump Circuit of Breaker tester access mechanism case of the present invention.A kind of Anti-jump Circuit of Breaker tester 10 provided by the invention; as shown in Figure 3; it is tested the anti-jump loop of isolating switch for accessing in isolating switch route protection screen terminal row (not shown), and described route protection screen terminal row is provided with public power contact 101, closing circuit contact 107, monitors switch auxiliary contact (representing with DL in Fig. 3) and trip(ping) circuit contact 137.As depicted in figs. 1 and 2, described anti-jump loop tester 10 itself comprises housing, and is fixed on described housing and the public power terminals 3, combined floodgate terminals 4, tripping operation terminals 5, the switch 6 that are connected with each contact on above-mentioned route protection screen terminal row accordingly respectively and count display screen 7; Wherein said combined floodgate terminals 4 are connected with described tripping operation terminals 5, described switch has the first moving contact 8, the second moving contact 9, the first auxiliary contact 1 and the second auxiliary contact 2, described tripping operation terminals 5 are separately connected on described the first moving contact and form trip(ping) circuit, and described public power terminals 3 are connected on and on described the second moving contact 9, form closing circuit; Described the first auxiliary contact 1 are connected with described counting display screen 7 respectively with described the second auxiliary contact 2 and are electrically connected to described supervision switch auxiliary contact formation closed-loop path by wire; When described switch 6 is closed, described closing circuit and described trip(ping) circuit are connected simultaneously.When pressing switch 6, can make closing circuit and trip(ping) circuit connect, the combined floodgate of anti-jump loop and the simultaneity of trip signal in the time of can realizing test simultaneously.
Below in conjunction with the comparison with conventional test methodologies, the principle that realizes of Anti-jump Circuit of Breaker tester of the present invention is described further.
When verifying the anti-jump loop function of isolating switch by the artificial method of testing of tradition, first artificially isolating switch is placed in isolating switch to " co-bit " by the hand mode of closing, with switch lever, make to close a floodgate contact always in on-state, after forever jumping relay (simulation permanent fault) tripping isolating switch with shorting stub startup again, decontrol divide-shut brake handle, reading on the counter display screen of observation isolating switch action, isolating switch only moves once, examine and determine into anti-jump loop function normal.For counting, show this part, reality is identical with the present invention.But artificially test anti-jump loop, the result of normally repeatedly testing.And there are various faults during actual motion, the discreteness of time is larger, and anti-trip relay is often opened, normally closed contact actuation time also inconsistent (between 10ms to 60ms not etc.).If anti-trip relay (CJX in Fig. 3) is often opened auxiliary contact by isolating switch and is started to the time of cutting off closing circuit and be greater than isolating switch actuation time (breaker closing time+breaker time+fast operating time of protection); may cause anti-trip relay not start; therefore there is isolating switch jump phenomena, increased the misoperation number of times of isolating switch.
Anti-jump Circuit of Breaker tester of the present invention, can guarantee the simultaneity of the breaking-closing operating of isolating switch, avoids the misoperation of isolating switch.Describe now the course of work of the test instrument of test both opens device anti-jump loop of the present invention in detail.When by after the corresponding contact of the public power terminals 3 in Anti-jump Circuit of Breaker tester 10 of the present invention, combined floodgate terminals 4 and tripping operation terminals 5 use wire line attachment protection screen terminal rows, corresponding contact comprises public power contact 101, closing circuit contact 107, supervision switch auxiliary contact (representing with DL in Fig. 3) and trip(ping) circuit contact 137 here.Press switch 6, the first moving contacts 8 and the second moving contact 9 connections, Anti-jump Circuit of Breaker testing experiment instrument 10 of the present invention and trip(ping) circuit and closing circuit are connected, and form closed-loop path.Make like this closing circuit and trip(ping) circuit connect (duration is 300ms), the operation simultaneously that divides, closes a floodgate of isolating switch simultaneously.In conjunction with Fig. 3 and Fig. 2, in anti-jump control loop, monitor switch auxiliary contact (DL) by the first auxiliary contact and the second auxiliary contact to counting display screen 7 feedback test signals, now, counting display screen 7 in the test instrument 10 of observation test Anti-jump Circuit of Breaker, if show, numeral is " 1 ", shows that Anti-jump Circuit of Breaker is normal.Like this, anti-jump loop is tested by least three people and is reduced to a people, realize property simple to operate and the accuracy of test both opens device anti-jump loop.
In addition, the inventor finds by a large amount of tests, utilizes Anti-jump Circuit of Breaker tester 10 of the present invention, can avoid isolating switch generation misoperation completely.Therefore, utilize the test instrument 10 of test both opens device anti-jump loop of the present invention, can guarantee isolating switch minute, the operation simultaneously of closing a floodgate, while avoiding artificial test method to cause test, result is correct, and during actual motion due to the multifactor anti-jump situation that loses that causes.
Certainly, the above is the preferred implementation of invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (1)
1. an Anti-jump Circuit of Breaker tester, it is tested the anti-jump loop of isolating switch for accessing on the route protection screen terminal row of isolating switch, described route protection screen terminal row is provided with public power contact, closing circuit contact, monitors switch auxiliary contact and trip(ping) circuit contact, it is characterized in that, described Anti-jump Circuit of Breaker tester comprises housing, and is fixed on described housing and is connected to accordingly respectively public power terminals, combined floodgate terminals, tripping operation terminals, switch and the counting display screen on described route protection screen terminal row; Wherein said combined floodgate terminals are connected with described tripping operation terminals, described switch has the first moving contact, the second moving contact, the first auxiliary contact and the second auxiliary contact, described tripping operation terminals are separately connected on described the first moving contact and form trip(ping) circuit, and described public power terminals are connected on and on described the second moving contact, form closing circuit; Described the first auxiliary contact are connected with described counting display screen respectively with described the second auxiliary contact and are electrically connected to described supervision switch auxiliary contact formation closed-loop path by wire; When described switch is closed, described closing circuit and described trip(ping) circuit are connected simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342924.XA CN104076277B (en) | 2014-07-17 | 2014-07-17 | Anti-jump Circuit of Breaker tester |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410342924.XA CN104076277B (en) | 2014-07-17 | 2014-07-17 | Anti-jump Circuit of Breaker tester |
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| CN104076277A true CN104076277A (en) | 2014-10-01 |
| CN104076277B CN104076277B (en) | 2017-10-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267344A (en) * | 2014-10-27 | 2015-01-07 | 国家电网公司 | Breaker trip detection method based on predicated mutation information |
| CN108169670A (en) * | 2018-02-01 | 2018-06-15 | 贵州电网有限责任公司 | A kind of Anti-jump Circuit of Breaker automatic test equipment and test method |
| CN110161404A (en) * | 2019-05-23 | 2019-08-23 | 首钢京唐钢铁联合有限责任公司 | High-voltage circuit breaker fault detection method and device and electronic equipment |
| CN110988668A (en) * | 2019-12-11 | 2020-04-10 | 国网浙江省电力有限公司金华供电公司 | Special tester and method for anti-jump loop |
| CN112986815A (en) * | 2021-04-30 | 2021-06-18 | 帝森克罗德集团有限公司 | Circuit and method for testing anti-tripping loop of circuit breaker |
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| JPS599570A (en) * | 1982-07-08 | 1984-01-18 | Nissin Electric Co Ltd | Method for testing switching life of capacitor of switch apparatus |
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| CN203502556U (en) * | 2013-09-18 | 2014-03-26 | 国家电网公司 | Simulation circuit breaker testing device for relay protection |
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| CN203965591U (en) * | 2014-07-17 | 2014-11-26 | 国家电网公司 | Anti-jump Circuit of Breaker tester |
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2014
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| JPS599570A (en) * | 1982-07-08 | 1984-01-18 | Nissin Electric Co Ltd | Method for testing switching life of capacitor of switch apparatus |
| CN201364378Y (en) * | 2009-03-03 | 2009-12-16 | 天津市电力公司 | Mechanical life testing device of high-voltage switch |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267344A (en) * | 2014-10-27 | 2015-01-07 | 国家电网公司 | Breaker trip detection method based on predicated mutation information |
| CN104267344B (en) * | 2014-10-27 | 2017-01-18 | 国家电网公司 | Breaker trip detection method based on predicated mutation information |
| CN108169670A (en) * | 2018-02-01 | 2018-06-15 | 贵州电网有限责任公司 | A kind of Anti-jump Circuit of Breaker automatic test equipment and test method |
| CN108169670B (en) * | 2018-02-01 | 2023-07-14 | 贵州电网有限责任公司 | Automatic test device and test method for circuit breaker anti-jump loop |
| CN110161404A (en) * | 2019-05-23 | 2019-08-23 | 首钢京唐钢铁联合有限责任公司 | High-voltage circuit breaker fault detection method and device and electronic equipment |
| CN110988668A (en) * | 2019-12-11 | 2020-04-10 | 国网浙江省电力有限公司金华供电公司 | Special tester and method for anti-jump loop |
| CN112986815A (en) * | 2021-04-30 | 2021-06-18 | 帝森克罗德集团有限公司 | Circuit and method for testing anti-tripping loop of circuit breaker |
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| Publication number | Publication date |
|---|---|
| CN104076277B (en) | 2017-10-17 |
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