CN102436773A - Analog circuit breaker - Google Patents
Analog circuit breaker Download PDFInfo
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- CN102436773A CN102436773A CN2011102741616A CN201110274161A CN102436773A CN 102436773 A CN102436773 A CN 102436773A CN 2011102741616 A CN2011102741616 A CN 2011102741616A CN 201110274161 A CN201110274161 A CN 201110274161A CN 102436773 A CN102436773 A CN 102436773A
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- disconnecting switch
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Abstract
The invention discloses an analog circuit breaker. The analog circuit breaker comprises a core circuit used for simulating a real breaker to work and a peripheral circuit used for ensuring operational reliability and a panel; the core circuit of the analog circuit breaker is formed by the serial connection of pair of normally opened contacts and a pair of normally closed contacts of a two-position relay respectively with a contactor, and is used for simulating the working electrical characteristic of the analog circuit breaker; the peripheral circuit comprises a control loop, a protection loop and a signal loop, wherein the control loop is connected with a control button on the foundation of the core circuit so as to achieve manual switching on and off; the protection loop is connected with a fuse wire and the like at the input end of the two-position relay so as to prevent conditions such as overflowing, overvoltage and the like; and the signal loop is connected in series with a red and green indicating lamp on an auxiliary contact of the two-position relay, and is used for simulating indication of switching on and off states.
Description
Technical field
The present invention relates to breaker technical field, relate in particular to a kind of mimic-disconnecting switch.
Background technology
Along with society and expanding economy, the dynamics of power grid construction is strengthening year by year.The quantity of annual new transformer station of going into operation and newly-increased each electric pressure isolating switch also increases year by year.The mechanical property of isolating switch is concerning the reliability of electrical network.After operation, prerun and overhaul, to carry out the test of switch mechanical property to isolating switch.
Isolating switch be a kind of can close with, carrying and normal loop condition of beginning under electric current, and can close close, the switchgear of the electric current in official hour under carrying and the unusual loop condition of beginning (comprising short circuit condition).
Because isolating switch quantity newly-increased in the annual power grid construction is bigger, annual breaker mechanic property test mission is quite heavy.Want often the testing crew that newly advances to be giveed training.If use true isolating switch to test training apparatus as breaker mechanic property, then investment is big, and training receives the restriction in place, and test also influences short-circuiting device serviceable life unavoidably, so use true isolating switch bigger as the cost of training apparatus.
In addition, also be useful on the mimic-disconnecting switch of the whole group of relay protection transmission test in the market.The mimic-disconnecting switch overwhelming majority is a microcomputer type, and the price of the mimic-disconnecting switch of microcomputer type is higher not to be suitable for electrical test.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of mimic-disconnecting switch, and the cost of manufacture of this mimic-disconnecting switch is lower, and can be applicable to electrical test.
In view of this; The technical scheme of technical solution problem of the present invention is: a kind of mimic-disconnecting switch is provided; Comprise: simulate true isolating switch core work circuit, guarantee the peripheral circuit and the panel of functional reliability, said core circuit is that the auxiliary contact of two-position relay and two-position relay remove the trigger that triggers.
Preferably, every phase all seal in two contacts of contactor with realize simulation alternate same period with mutually in the same period.
Preferably, insert three ports/six port translation switches in the described core circuit.
Preferably, described peripheral circuit comprises: control loop, protection loop and signal circuit.
Preferably, described control loop is an access control apparatus, realizes manual divide-shut brake.
Preferably, described control device is a control knob.
Preferably, the superpotential injury is avoided for protective device is set at input end in described protection loop.
Preferably, the described protective device that is provided with is for to be provided with fuse at input end, and two-position relay with contact coil on the reverse parallel connection fly-wheel diode.
Preferably, described signal circuit is a sending and receiving telltale on the two-position relay auxiliary contact, is used for the divide-shut brake indication of mimic-disconnecting switch.
Preferably, described signaling device is a pilot lamp.
The present invention constitutes the core circuit of mimic-disconnecting switch jointly with two-position relay and contactor, and these two kinds of elements all are most common components during we work, and their prices are lower, buying easily, so with respect to prior art, cost of the present invention is lower.
Description of drawings
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the present invention;
Fig. 2 is the circuit diagram in protection loop in a kind of embodiment of the present invention.
Embodiment
Mimic-disconnecting switch provided by the invention comprises: the peripheral circuit and the panel of simulating true isolating switch core work circuit, assurance functional reliability.Wherein the core circuit of mimic-disconnecting switch is to constitute with a secondary normal opened contact of two-position relay and the secondary normally closed contact contactor of connecting respectively, is used for the electrical specification of mimic-disconnecting switch work.Because two-position relay and these two kinds of elements of contactor all are most common components, they have, and price is low, the characteristics of easy buying, does core parts of the present invention with them and has effectively reduced cost.
Specify a kind of embodiment of the present invention below in conjunction with accompanying drawing.
Under the situation of not considering barring condition, the course of action of isolating switch can simply be described as the closing coil energising, breaker closing, switching winding energising, breaker open operation.This operating principle with two-position relay is the same.The energising of two-position relay set coil, normally opened contact is closed, the resetting coil energising, normally opened contact breaks off.It is thus clear that the set coil of two-position relay just is equivalent to the closing coil of isolating switch, resetting coil is equivalent to switching winding.
A kind of mimic-disconnecting switch involved in the present invention is with the core parts of two-position relay as mimic-disconnecting switch.But the contact rating of two-position relay is limited; Can't satisfy the requirement of electrical test; In order to address this problem, we remove to trigger contactor with the auxiliary contact of two-position relay, are made up of the core circuit of mimic-disconnecting switch jointly contactor and two-position relay.
As shown in Figure 1, a secondary normal opened contact JKX1 of two-position relay and a secondary normally closed contact JKX2 be series contactor KM1, KM2 respectively.Simultaneously, for simulate the alternate same period with mutually in the same period (double break mouth isolating switch), need all to seal in two contacts of contactor in every phase.When switching current flows through No. 1 relay; Normal opened contact JKX1 is closed; Electric current is through the normally closed contact JKX2 of combined floodgate TA through No. 2 relays, and the normal opened contact JKX1 that flows to No. 1 relay is to contactor KM1, so because KM1 conducting normal opened contact KM1 is closed; Make contactor KM1 self-sustaining, the effect that is equivalent to close a floodgate.In like manner, when a minute brake current flow through No. 2 relay normally closed contact JKX2, normally closed contact JKX2 broke off, and contactor KM1 no current so break off, reaches the separating brake effect.
In order to make the mimic-disconnecting switch reliable operation that adopts contactor and two-position relay to build, we also need be provided with some necessary control loops, protection loop and signal circuit.Control loop is very simple, is exactly the Access Control button, realizes manual divide-shut brake, and guarantee to feed after the measuring current contactor and two-position relay coil and can in time switch on and cut off the power supply by certain logic.The protection loop then is that at the input end of relay fuse to be set in order to prevent situation such as overcurrent, overvoltage from occurring as shown in Figure 2; 1RD, 2RD, 3RD are set fuses; And on two-position relay and contactor coil the reverse parallel connection fly-wheel diode, avoid injuring because of switching fast the superpotential that produces.Signal circuit then is the red green pilot lamp of serial connection on the two-position relay auxiliary contact, is used for the indication of the opening and closing state of mimic-disconnecting switch.
In the production of reality, some isolating switch has a fracture, and some isolating switch is two fractures that have of Y type, because use generally is A, B, C three-phase breaker, so there are three/six ports.Three ports/six port translation switches in core circuit, have been inserted in this embodiment, to realize the conversion of three/six ports.Because the conversion of three/six ports is arranged, and the indicating status in the signal circuit specifically comprises: the indication of three port separating brakes, three ports close a floodgate and indicate, six port separating brakes are indicated, six ports close a floodgate indication.
Be the design panel at last, all nodes drawn be connected to panel jack, and the producing device shell, when playing the protection inner member, make device elegant in appearance, such mimic-disconnecting switch is just complete.
Above embodiment is a kind of preferred implementation of the present invention, and wherein the control loop of peripheral circuit, protection loop, signal circuit can also use other mode to realize.What control loop will be realized is manual divide-shut brake function, if insert hand switch just can, handle the Access Control button and can also select to insert other forms of switch outward.What signal circuit will be realized is the function of indication opening and closing state, except the red green pilot lamp of mentioning in the foregoing description can also be used other signal prompt devices.As long as the technical scheme embodiment consistent with the present invention of technical solution problem all belongs to protection scope of the present invention.
Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of invention claim.
Claims (10)
1. mimic-disconnecting switch; It is characterized in that; Comprise: simulate true isolating switch core work circuit, guarantee the peripheral circuit and the panel of functional reliability, said core circuit is that the auxiliary contact of two-position relay and two-position relay remove the trigger that triggers.
2. mimic-disconnecting switch according to claim 1 is characterized in that, every phase all seal in two contacts of contactor with realize simulation alternate same period with mutually in the same period.
3. mimic-disconnecting switch according to claim 1 is characterized in that, inserts three ports/six port translation switches in the described core circuit.
4. mimic-disconnecting switch according to claim 1 is characterized in that, described peripheral circuit comprises: control loop, protection loop and signal circuit.
5. mimic-disconnecting switch according to claim 4 is characterized in that described control loop is an access control apparatus, realizes manual divide-shut brake.
6. mimic-disconnecting switch according to claim 5 is characterized in that, described control device is a control knob.
7. mimic-disconnecting switch according to claim 3 is characterized in that, the superpotential injury is avoided for protective device is set at input end in described protection loop.
8. mimic-disconnecting switch according to claim 7 is characterized in that, the described protective device that is provided with is for to be provided with fuse at input end, and two-position relay with contact coil on the reverse parallel connection fly-wheel diode.
9. mimic-disconnecting switch according to claim 4 is characterized in that, described signal circuit is a sending and receiving telltale on the two-position relay auxiliary contact, is used for the divide-shut brake indication of mimic-disconnecting switch.
10. mimic-disconnecting switch according to claim 9 is characterized in that, described signaling device is a pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274161.6A CN102436773B (en) | 2011-09-15 | 2011-09-15 | Analog circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110274161.6A CN102436773B (en) | 2011-09-15 | 2011-09-15 | Analog circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102436773A true CN102436773A (en) | 2012-05-02 |
| CN102436773B CN102436773B (en) | 2014-03-12 |
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| CN201110274161.6A Active CN102436773B (en) | 2011-09-15 | 2011-09-15 | Analog circuit breaker |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293350A (en) * | 2013-06-06 | 2013-09-11 | 国家电网公司 | Micro analog circuit breaker |
| CN104569802A (en) * | 2015-01-19 | 2015-04-29 | 国家电网公司 | Intelligent substation debugging system and primary isolating switch analog equipment |
| CN105004990A (en) * | 2015-07-23 | 2015-10-28 | 广西水利电力职业技术学院 | High-voltage breaker simulator with DC voltage output |
| CN106297510A (en) * | 2016-11-02 | 2017-01-04 | 中国石油大学胜利学院 | Relay protection based on 36V voltage and the portable simulator of secondary circuit |
| CN106768954A (en) * | 2016-12-28 | 2017-05-31 | 中核核电运行管理有限公司 | 6kV medium voltage contactor multi-functional mechanical features Testbeds |
| CN107102232A (en) * | 2017-06-13 | 2017-08-29 | 广东电网有限责任公司佛山供电局 | A kind of portable simulation breaker |
| CN104502760B (en) * | 2014-12-19 | 2018-02-27 | 厦门远通电子技术有限公司 | A kind of primary cut-out simulator and its application method |
| CN112285451A (en) * | 2020-09-04 | 2021-01-29 | 福建福清核电有限公司 | Medium-voltage emergency section reloading logic test substitution device and method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293350A (en) * | 2013-06-06 | 2013-09-11 | 国家电网公司 | Micro analog circuit breaker |
| CN103293350B (en) * | 2013-06-06 | 2015-12-09 | 国家电网公司 | Minisize simulative circuit breaker |
| CN104502760B (en) * | 2014-12-19 | 2018-02-27 | 厦门远通电子技术有限公司 | A kind of primary cut-out simulator and its application method |
| CN104569802B (en) * | 2015-01-19 | 2018-01-09 | 国家电网公司 | A kind of intelligent substation debugging system and a disconnecting switch analog machine |
| CN104569802A (en) * | 2015-01-19 | 2015-04-29 | 国家电网公司 | Intelligent substation debugging system and primary isolating switch analog equipment |
| CN105004990B (en) * | 2015-07-23 | 2018-04-13 | 广西水利电力职业技术学院 | A kind of high voltage breaker simulator with direct voltage output |
| CN105004990A (en) * | 2015-07-23 | 2015-10-28 | 广西水利电力职业技术学院 | High-voltage breaker simulator with DC voltage output |
| CN106297510A (en) * | 2016-11-02 | 2017-01-04 | 中国石油大学胜利学院 | Relay protection based on 36V voltage and the portable simulator of secondary circuit |
| CN106768954A (en) * | 2016-12-28 | 2017-05-31 | 中核核电运行管理有限公司 | 6kV medium voltage contactor multi-functional mechanical features Testbeds |
| CN106768954B (en) * | 2016-12-28 | 2023-05-19 | 中核核电运行管理有限公司 | Multifunctional mechanical characteristic test bed for 6kV medium-voltage contactor |
| CN107102232A (en) * | 2017-06-13 | 2017-08-29 | 广东电网有限责任公司佛山供电局 | A kind of portable simulation breaker |
| CN107102232B (en) * | 2017-06-13 | 2023-04-28 | 广东电网有限责任公司佛山供电局 | Portable analog circuit breaker |
| CN112285451A (en) * | 2020-09-04 | 2021-01-29 | 福建福清核电有限公司 | Medium-voltage emergency section reloading logic test substitution device and method |
| CN112285451B (en) * | 2020-09-04 | 2024-05-14 | 福建福清核电有限公司 | Medium-voltage emergency section reload logic test substitution device and method |
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|---|---|
| CN102436773B (en) | 2014-03-12 |
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