CN204559112U - A kind of circuit breaker protective circuit - Google Patents
A kind of circuit breaker protective circuit Download PDFInfo
- Publication number
- CN204559112U CN204559112U CN201520130793.9U CN201520130793U CN204559112U CN 204559112 U CN204559112 U CN 204559112U CN 201520130793 U CN201520130793 U CN 201520130793U CN 204559112 U CN204559112 U CN 204559112U
- Authority
- CN
- China
- Prior art keywords
- circuit
- binding post
- trip
- circuit breaker
- telecommunication
- 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.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 37
- 230000007257 malfunction Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 229910018503 SF6 Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a kind of circuit breaker protective circuit, comprising: the 3rd binding post is connected with the 4th binding post; For receiving the tripping operation module of trip command; After tripping operation module receives described trip command, for receiving the 5th binding post of the positive pole signal of telecommunication; After the 5th binding post receives the positive pole signal of telecommunication, trip(ping) circuit conducting; For receiving the combined floodgate module of reclosing command; After combined floodgate module receives reclosing command, for receiving the 6th binding post of the positive pole signal of telecommunication; After the 6th binding post receives the positive pole signal of telecommunication; closing circuit conducting; the circuit breaker protective circuit that the utility model provides; make after the second switch circuit malfunctions controlling power module; the negative electricity signal of trip protection closing circuit can not be affected; the tripping operation reclosing command correct operation that circuit breaker can send according to automatic safety device, for power grid security provides a guarantee.
Description
Technical field
The utility model relates to electrical safety technical field, more particularly, relates to a kind of circuit breaker protective circuit.
Background technology
Breaker protection action refer to circuit breaker in relaying protection and automatic safety device action and send instruction perform an action, comprise and to cut off and closed.In circuit breaker protective circuit; air switch fault is inevitable; but breaker protection tripping in the case; then can cause the further expansion of circuit breaker protective circuit fault; and then harm power grid security; therefore, how effectively to eliminate the impact of power supply air switch fault on breaker protection action and seem particularly important.
In prior art, the main second switch fault adopting circuit breaker protective circuit as shown in Figure 1 to eliminate control power module is on the impact of breaker protection action.But still there is a little deficiency in it; when controlling the second switch circuit malfunctions of power module; closing circuit in circuit breaker protective circuit and the integrality of trip(ping) circuit will be destroyed, to such an extent as to circuit breaker correctly cannot perform separating brake and reclosing command that automatic safety device sends.
Utility model content
In view of this; the purpose of this utility model is to provide a kind of circuit breaker protective circuit; in order to after control power switch circuit breaks down, the negative electricity signal that protection divide-shut brake is returned can not be affected, the divide-shut brake instruction correct operation that circuit breaker can send according to automatic safety device.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of circuit breaker protective circuit, comprising:
First binding post is connected with the first switching circuit, and described first switching circuit is connected with the second binding post, and described second binding post is connected with closing circuit, and described closing circuit is connected with trip(ping) circuit;
3rd binding post is connected with second switch circuit, and described second switch circuit is connected with the 4th binding post, and described 4th binding post is connected with closing circuit, and described closing circuit is connected with trip(ping) circuit;
One end of power module is connected with described first switching circuit, and the other end of described power module is connected with described second switch circuit;
Described 3rd binding post is connected with described 4th binding post;
Described trip(ping) circuit comprises:
For receiving the tripping operation module of trip command; When described trip command is the described second switch circuit malfunctions controlling described power module, the instruction that automatic safety device sends;
After described tripping operation module receives described trip command, for receiving the 5th binding post of the positive pole signal of telecommunication; After described 5th binding post receives the described positive pole signal of telecommunication, described trip(ping) circuit conducting;
Described closing circuit comprises:
For receiving the combined floodgate module of reclosing command; When described reclosing command is described trip(ping) circuit conducting, the instruction that described automatic safety device sends;
After described combined floodgate module receives described reclosing command, for receiving the 6th binding post of the positive pole signal of telecommunication; After described 6th binding post receives the described positive pole signal of telecommunication, described closing circuit conducting.
Preferably, described circuit also comprises:
Monitoring circuit, the current strength in described monitoring circuit is less than or equal to 50mA.
Preferably, described switching circuit is specially DC power supply automatic switch on the spot.
Preferably, described power module is DC power supplier.
Preferably, the voltage of described DC power supplier is 220V.
Preferably, the voltage of described DC power supplier is 110V.
Preferably, the wire gauge that described circuit breaker protective circuit adopts is 2.5mm
2.
Compared with prior art, advantage of the present utility model is as follows:
A kind of circuit breaker protective circuit that the utility model provides, by the 3rd binding post is connected with the 4th binding post, make the 5th binding post in trip(ping) circuit when controlling the second switch circuit malfunctions of power module, the positive pole signal of telecommunication is received after tripping operation module receives the trip command of automatic safety device transmission, make trip(ping) circuit conducting, and according to the 6th binding post by closing circuit conducting, with prior art, after the second switch circuit malfunctions controlling power module, trip protection closing circuit integrality is destroyed, circuit breaker correctly cannot perform the tripping operation reclosing command that automatic safety device sends, checking harm power grid security is compared, the circuit breaker protective circuit that the utility model provides, make after the second switch circuit malfunctions controlling power module, the negative electricity signal of trip protection closing circuit can not be affected, the tripping operation reclosing command correct operation that circuit breaker can send according to automatic safety device, for power grid security provides a guarantee.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The electronic schematic diagram of the circuit breaker that Fig. 1 provides for prior art;
A kind of circuit breaker electronic schematic diagram that Fig. 2 provides for the utility model embodiment;
The schematic diagram of a kind of circuit breaker mechanism case terminal board that Fig. 3 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of structural representation of a kind of circuit breaker protective circuit that the utility model embodiment provides as shown in Figure 2, can comprise:
Power module 11, closing circuit 12 and trip(ping) circuit 13; Wherein:
Trip(ping) circuit 13 comprises:
For receiving the tripping operation module of trip command; Trip command is power module 11 when breaking down, the instruction that automatic safety device sends;
After tripping operation module receives trip command, for receiving the 5th binding post TB1/8 of the positive pole signal of telecommunication; After the 5th binding post TB1/8 receives the positive pole signal of telecommunication, trip(ping) circuit 13 conducting;
Closing circuit 12 comprises:
For receiving the combined floodgate module of reclosing command; When reclosing command is trip(ping) circuit 12 conducting, the instruction that automatic safety device sends;
After combined floodgate module 12 receives reclosing command, for receiving the 6th binding post TB1/7 of the positive pole signal of telecommunication; After the 6th binding post TB1/7 receives the positive pole signal of telecommunication, closing circuit 12 conducting.
Be depicted as in the electronic schematic diagram of the circuit breaker that the utility model embodiment provides at Fig. 2, first binding post TB1/1 is connected with the first switching circuit 8D, first switching circuit 8D is connected with the second binding post TB1/4, second binding post TB1/4 is connected with closing circuit 12, and closing circuit 12 is connected with trip(ping) circuit 13;
3rd binding post TB1/2 is connected with second switch circuit 8D, and second switch circuit 8D is connected with the 4th binding post TB1/6, and the 4th binding post TB1/6 is connected with closing circuit 12, and closing circuit 12 is connected with trip(ping) circuit 13;
One end of power module 11 is connected with the first switching circuit 8D, and the other end of power module 11 is connected with second switch circuit 8D; 3rd binding post TB1/2 is connected with the 4th binding post TB1/6.
Be understandable that, the first switching circuit 8D and second switch circuit 8D is identical switching circuit.
It should be noted that, the combined floodgate module of closing circuit 12 can comprise:
The first circuit that manual brake separating console switch 11-52C, on the spot remote operation switch 43LR, anti-jump auxiliary relay 52Y, D.C. contactor 88M, motor heat relay 49MX, switching-in spring Stateful Inspection auxiliary relay 33HBX, auxiliary switch 52b/1, closing coil 52c and SF6 low-voltage dead lock relay 63GLX etc. are connected in series mutually;
Meanwhile, can comprise:
The second circuit that auxiliary switch 52a/1, anti-jump auxiliary relay 52Y and on the spot remote operation switch 43LR etc. are connected in series;
Can also comprise:
The tertiary circuit that anti-jump auxiliary relay 52Y connects with resistance R1 etc.
It should be noted that, be connected in parallel between the first circuit, second circuit and tertiary circuit.
In like manner, the tripping operation module in trip(ping) circuit 13 can comprise:
Manual brake separating console switch 11-52T, auxiliary switch 52a/1, and above-mentioned electronic device is connected in series.
Meanwhile, can also comprise in circuit breaker protective circuit: electric capacity etc.
Be understandable that, the closing circuit 12 and the trip(ping) circuit 13 that provide in the utility model embodiment are connected in parallel.
It should be noted that, in the electrical schematic diagram of the circuit breaker shown in Fig. 3, breaker open operation (circuit breaker transfers open position to by closing position) position during auxiliary switch position, relay tip is in without excited state, pressure switch (SF6 low-voltage dead lock relay, sulfur hexafluoride, sulphur hexafluoride low-voltage dead lock relay) be in passive state, automatic switch is in gate-dividing state.
When the first switching circuit 8D of the control power module 11 in circuit breaker protective circuit and second switch circuit 8D normally works; by being in the first switching circuit 8D and the second switch circuit 8D of closure state; power module 11 provides power supply for circuit breaker protective circuit, and circuit breaker protective circuit is in normal operating conditions.
When the second switch circuit 8D of the control power module 11 in circuit breaker protective circuit breaks down (electric current namely in electrical circuit breakers protective circuit is 0mA), automatic safety device sends trip command, after circuit breaker receives the trip command that automatic safety device sends, the 5th binding post TB1/8 in trip(ping) circuit in circuit breaker protective circuit receives the positive pole signal of telecommunication, because the 3rd binding post TB1/2 and the 4th binding post TB1/6 is in connection status always, and each electronic device in tripping operation module all normally works, therefore trip(ping) circuit 13 is while the 5th binding post TB1/8 receives the positive pole signal of telecommunication, trip(ping) circuit 13 also can receive negative electricity signal, to make trip(ping) circuit 13 conducting.After trip(ping) circuit 13 conducting, automatic safety device sends reclosing command, after circuit breaker receives the reclosing command that automatic safety device sends, the 6th binding post TB1/7 in closing circuit 12 in circuit breaker protective circuit receives the positive pole signal of telecommunication, in like manner, because the 3rd binding post TB1/2 and the 4th binding post TB1/6 is in connection status always, and each electronic device in combined floodgate module all normally works, therefore closing circuit 12 is while the 6th binding post TB1/7 receives the positive pole signal of telecommunication, closing circuit 12 also can receive negative electricity signal, to make closing circuit 12 conducting.Therefore the circuit breaker protective circuit that the utility model embodiment provides is when the second switch circuit 8D controlling power module 11 breaks down; the negative electricity signal of trip protection, combined floodgate can not be affected; circuit breaker can send tripping operation according to automatic safety device, reclosing command performs correct action; for power grid security provides effective guarantee; on the basis of Fig. 2, the schematic diagram of a kind of circuit breaker mechanism case terminal board that the utility model embodiment provides is shown in Fig. 3.
In the utility model embodiment, described circuit breaker protective circuit can also comprise:
Monitoring circuit, but it should be noted that the current strength in monitoring circuit generally can be less than or equal to 50mA.
Optionally, in the circuit breaker protective circuit that the utility model embodiment provides, when being interconnected between each electronic device, employing be 2.5mm
2the wire of specification; Wherein, in circuit breaker protective circuit, generally adopt DC power supplier, and the magnitude of voltage of this DC power supplier can be 220V, also can be 110V.
Optionally, described switching circuit is specifically as follows DC power supply automatic switch on the spot.
It should be noted that, in the utility model embodiment, remote operation switch is on the spot have employed in closing circuit, wherein generally there are tens meters between controlled circuit breaker and control room to the distance of hundreds of rice, operations staff is operated circuit breaker by control loop at control room control switch, and the location status of circuit breaker is reflected by light signal, this control controls in a distant place.Namely the mode that remote operation switch adopts a distant place to control realizes the closed of switch and disconnection.
Control on the spot to be divided into Non-follow control and automatically controlling on the spot on the spot.It is a kind ofly possessing the control method that the local control device of independently computer disposal and controlling functions realizes.Wherein, Non-follow control utilizes switch on local control device or button on the spot, realizes opening/stop operation to equipment control in mode manually; And automatically control on the spot to control for utilizing the controller of local control device automatically to realize opening/stop operation to equipment, it is fixing in the controller that its operation requirements and program pass through programming.Therefore no matter adopt control on the spot or distant place control, all can realize the normal work of each electronic device in combined floodgate circuit and trip(ping) circuit.
A kind of circuit breaker protective circuit that the utility model embodiment provides, by the 3rd binding post is connected with the 4th binding post, make the 5th binding post in trip(ping) circuit when power module breaks down, the positive pole signal of telecommunication is received after tripping operation module receives the trip command of automatic safety device transmission, make trip(ping) circuit conducting, and according to the 6th binding post by closing circuit conducting, with prior art, after the second switch circuit malfunctions controlling power module, trip protection closing circuit integrality is destroyed, circuit breaker correctly cannot perform the tripping operation reclosing command that automatic safety device sends, checking harm power grid security is compared, the circuit breaker protective circuit that the utility model embodiment provides, make after the second switch circuit malfunctions controlling power module, the negative electricity signal of trip protection closing circuit can not be affected, the tripping operation reclosing command correct operation that circuit breaker can send according to automatic safety device, for power grid security provides a guarantee.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the utility model.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a circuit breaker protective circuit, is characterized in that, comprising:
First binding post is connected with the first switching circuit, and described first switching circuit is connected with the second binding post, and described second binding post is connected with closing circuit, and described closing circuit is connected with trip(ping) circuit;
3rd binding post is connected with second switch circuit, and described second switch circuit is connected with the 4th binding post, and described 4th binding post is connected with closing circuit, and described closing circuit is connected with trip(ping) circuit;
One end of power module is connected with described first switching circuit, and the other end of described power module is connected with described second switch circuit;
Described 3rd binding post is connected with described 4th binding post;
Described trip(ping) circuit comprises:
For receiving the tripping operation module of trip command; When described trip command is the described second switch circuit malfunctions controlling described power module, the instruction that automatic safety device sends;
After described tripping operation module receives described trip command, for receiving the 5th binding post of the positive pole signal of telecommunication; After described 5th binding post receives the described positive pole signal of telecommunication, described trip(ping) circuit conducting;
Described closing circuit comprises:
For receiving the combined floodgate module of reclosing command; When described reclosing command is described trip(ping) circuit conducting, the instruction that described automatic safety device sends;
After described combined floodgate module receives described reclosing command, for receiving the 6th binding post of the positive pole signal of telecommunication; After described 6th binding post receives the described positive pole signal of telecommunication, described closing circuit conducting.
2. circuit breaker protective circuit according to claim 1, is characterized in that, described circuit also comprises:
Monitoring circuit, the current strength in described monitoring circuit is less than or equal to 50mA.
3. circuit breaker protective circuit according to claim 1, is characterized in that, described switching circuit is specially DC power supply automatic switch on the spot.
4. circuit breaker protective circuit according to claim 1, is characterized in that, described power module is DC power supplier.
5. circuit breaker protective circuit according to claim 4, is characterized in that, the voltage of described DC power supplier is 220V.
6. circuit breaker protective circuit according to claim 5, is characterized in that, the voltage of described DC power supplier is 110V.
7. circuit breaker protective circuit according to claim 1, is characterized in that, the wire gauge that described circuit breaker protective circuit adopts is 2.5mm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130793.9U CN204559112U (en) | 2015-03-06 | 2015-03-06 | A kind of circuit breaker protective circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130793.9U CN204559112U (en) | 2015-03-06 | 2015-03-06 | A kind of circuit breaker protective circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559112U true CN204559112U (en) | 2015-08-12 |
Family
ID=53834183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520130793.9U Expired - Fee Related CN204559112U (en) | 2015-03-06 | 2015-03-06 | A kind of circuit breaker protective circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204559112U (en) |
-
2015
- 2015-03-06 CN CN201520130793.9U patent/CN204559112U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105305620A (en) | Disconnection monitoring system of breaker closing control circuit | |
| CN106787222B (en) | Main transformer neutral point grounding disconnecting link remote control circuit | |
| CN104192026B (en) | Based on electrification railway contact net electric isolating switch and the method for supervising of power supply switching type | |
| CN202586259U (en) | Minisize intelligent electric leakage comprehensive protection switch | |
| CN206195330U (en) | Protection of intelligence breaker control circuit and monitoring devices | |
| CN201549868U (en) | Low-voltage switch intelligent controller | |
| CN103311889A (en) | Manual switching protection circuit for dual power supplies | |
| CN204559112U (en) | A kind of circuit breaker protective circuit | |
| CN206931526U (en) | A kind of Standard type intelligent vacuum circuit breaker | |
| CN206804748U (en) | A kind of FTU online simulations experimental rig | |
| CN203192723U (en) | Under-voltage trip gear for breaker | |
| CN202798126U (en) | Automatic switching system for uninterrupted power supply of PLC (programmable logic controller) | |
| CN204706818U (en) | A kind of high-tension switch cabinet switching-off device | |
| CN203607351U (en) | A low-voltage circuit breaker automatic closing apparatus | |
| CN203800403U (en) | Multifunctional distribution terminal box | |
| CN203434595U (en) | Dual power supply manual switch protection circuit | |
| CN202678949U (en) | 110kv circuit protection system capable of avoiding multi-reclosing failures | |
| CN202586284U (en) | Motor overheating delay protection device | |
| CN104362578B (en) | Can reclosing RCCB | |
| CN105261530A (en) | Multi-stroke realizing circuit and multi-stroke control method for circuit breakers | |
| CN204216659U (en) | For the control circuit of double power-supply system | |
| CN204886117U (en) | Operation circuit of circuit breaker | |
| CN203504132U (en) | Overcurrent protection device for mining mobile transformer station of flame-proof type | |
| CN204130924U (en) | A kind of tripper of distribution box | |
| CN204271607U (en) | A kind of dual trip-preventing circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20190306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |