CN103633615A - Protection method for trip loop of distribution terminal - Google Patents
Protection method for trip loop of distribution terminal Download PDFInfo
- Publication number
- CN103633615A CN103633615A CN201310571722.8A CN201310571722A CN103633615A CN 103633615 A CN103633615 A CN 103633615A CN 201310571722 A CN201310571722 A CN 201310571722A CN 103633615 A CN103633615 A CN 103633615A
- Authority
- CN
- China
- Prior art keywords
- distribution terminal
- tripping operation
- circuit
- loop
- ping
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
Images
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a protection method for a trip loop of a distribution terminal. The distribution terminal, a primary switch, a primary switch operation loop, a tripping air contact and a closing air contact are involved in the method, wherein the tripping output end of the distribution terminal is connected with the tripping input end of the primary switch; the output end of the distribution terminal is connected with the input ends of the tripping air contact and the closing air contact respectively; the output ends of the tripping air contact and the closing air contact are connected with the input end of the primary switch operation loop; the output end of the primary switch operation loop is connected with the input end of the primary switch; the current in the primary switch is reduced by the resistance in the primary switch operation loop so that the primary switch is protected. According to the protection method, the flowing time of the current in a circuit can be delayed effectively by arranging the primary switch and the primary switch operation loop, and the primary switch can be protected in time. The loop has the advantages of simple structure, stable using performance and long service life.
Description
Technical field
The present invention relates to the guard method of trip(ping) circuit, relate in particular to a kind of guard method of distribution terminal trip(ping) circuit.
Background technology
At present; distribution power automation terminal self does not generally possess operation circuit; but directly export a relay idle contact; usually can be due to after distribution terminal tripping operation; a switch the electric current of process surpassed the rated current of a switch; cause switch to damage, cause switch of tripping operation to damage to be mainly at switch not completely during tripping, tripping operation contact returns and causes larger drop-out current to cause.
Summary of the invention
Object of the present invention is just to provide in order to address the above problem a kind of guard method of distribution terminal trip(ping) circuit.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes distribution terminal, a switch, a switching manipulation loop, tripping operation idle contact and combined floodgate idle contact, the tripping operation output of described distribution terminal is connected with the tripping operation input of a described switch, the output of described distribution terminal is connected with the input of described combined floodgate idle contact with described tripping operation idle contact respectively, the output of described tripping operation idle contact and described combined floodgate idle contact is connected with the input in a described switching manipulation loop, the output in a described switching manipulation loop is connected with the input of a described switch, utilize the resistance in switching manipulation loop to reduce the electric current in a described switch, protect a described switch.
Further, in a described switching manipulation loop, breaking coil and closing coil are set, utilize the circuit in described breaking coil and described closing coil to reduce the electric current in a described switch.
Further, two circuit breakers being also set in a described switching manipulation loop connects with described breaking coil and described closing coil respectively.
Further, the electric current in loop is excessive, and when described breaking coil and described closing coil cannot reduce electric current, two circuit breakers carry out power-off protection to tripping operation and closing circuit respectively.
Further, described breaking coil and described closing coil when the tripping operation of described distribution terminal, because its resistance value is higher, can to circuit play certain hour delay, this time can guarantee that a described switch disconnects completely.
Further, be 350ms-1s described time of delay.
Further, be 500ms described time of delay.
Further, when a described switch disconnects completely, when tripping operation idle contact is closed, loop still has the larger current point of operating current generating to open tripping operation idle contact protective circuit.
Beneficial effect of the present invention is:
The present invention is by setting switching manipulation loop of a switch, and effectively the flowing time of electric current in delay circuit, can protect switch timely No. one time; That the present invention has advantages of is simple in structure, serviceability stable and useful life is longer.
Accompanying drawing explanation
Fig. 1 is the structure chart of the guard method of a kind of distribution terminal trip(ping) circuit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Embodiment mono-: as shown in Figure 1, the present invention includes distribution terminal, a switch S, a switching manipulation loop, tripping operation idle contact TJ and combined floodgate idle contact HJ, the tripping operation output of distribution terminal is connected with the tripping operation input of a switch S, the output of distribution terminal is connected with the input of combined floodgate idle contact HJ with tripping operation idle contact TJ respectively, the output of tripping operation idle contact TJ and combined floodgate idle contact HJ is connected with the input in a switching manipulation loop, the output in a switching manipulation loop is connected with the input of a switch S, utilize the resistance in switching manipulation loop to reduce the electric current in switch S one time, protect one time switch S, breaking coil TQ and closing coil HQ are set in a switching manipulation loop, utilize the circuit in breaking coil TQ and closing coil HQ to reduce the electric current in switch S one time, two circuit breaker DL are also set in a switching manipulation loop to connect with breaking coil TQ and closing coil HQ respectively, electric current in loop is excessive, when breaking coil TQ and closing coil HQ cannot reduce electric current, two circuit breaker DL carry out power-off protection to tripping operation and closing circuit respectively, breaking coil TQ and closing coil HQ are when distribution terminal trips, because its resistance value is higher, can to circuit play certain hour delay, this time can guarantee that a switch S disconnects completely, be 500ms time of delay, when a switch S disconnects completely, when tripping operation idle contact TJ is closed, loop still has the larger current point of operating current generating to open tripping operation idle contact TJ protective circuit.
Those skilled in the art do not depart from essence of the present invention and spirit, can there is various deformation scheme to realize the present invention, the foregoing is only the better feasible embodiment of the present invention, not thereby limit to interest field of the present invention, the equivalent structure that all utilizations specification of the present invention and accompanying drawing content are done changes, within being all contained in interest field of the present invention.
Claims (8)
1. the guard method of a distribution terminal trip(ping) circuit, comprise distribution terminal and a switch, the tripping operation output of described distribution terminal is connected with the tripping operation input of a described switch, it is characterized in that: also comprise switching manipulation loop one time, tripping operation idle contact and combined floodgate idle contact, the output of described distribution terminal is connected with the input of described combined floodgate idle contact with described tripping operation idle contact respectively, the output of described tripping operation idle contact and described combined floodgate idle contact is connected with the input in a described switching manipulation loop, the output in a described switching manipulation loop is connected with the input of a described switch, utilize the resistance in switching manipulation loop to reduce the electric current in a described switch, protect a described switch.
2. the guard method of a kind of distribution terminal trip(ping) circuit according to claim 1; it is characterized in that: in a described switching manipulation loop, breaking coil and closing coil are set, utilize the circuit in described breaking coil and described closing coil to reduce the electric current in a described switch.
3. the guard method of a kind of distribution terminal trip(ping) circuit according to claim 2, is characterized in that: two circuit breakers are also set in a described switching manipulation loop and connect with described breaking coil and described closing coil respectively.
4. the guard method of a kind of distribution terminal trip(ping) circuit according to claim 3; it is characterized in that: the electric current in loop is excessive; when described breaking coil and described closing coil cannot reduce electric current, two circuit breakers carry out power-off protection to tripping operation and closing circuit respectively.
5. the guard method of a kind of distribution terminal trip(ping) circuit according to claim 2; it is characterized in that: described breaking coil and described closing coil are when described distribution terminal tripping operation; because its resistance value is higher; can to circuit play certain hour delay, this time can guarantee that a described switch disconnects completely.
6. the guard method of a kind of distribution terminal trip(ping) circuit according to claim 5, is characterized in that: be 350ms-1s described time of delay.
7. the guard method of a kind of distribution terminal trip(ping) circuit according to claim 6, is characterized in that: be 500ms described time of delay.
8. the guard method of a kind of distribution terminal trip(ping) circuit according to claim 5; it is characterized in that: when a described switch disconnects completely; when tripping operation idle contact is closed, loop still has the larger current point of operating current generating to open tripping operation idle contact protective circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310571722.8A CN103633615A (en) | 2013-11-13 | 2013-11-13 | Protection method for trip loop of distribution terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310571722.8A CN103633615A (en) | 2013-11-13 | 2013-11-13 | Protection method for trip loop of distribution terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103633615A true CN103633615A (en) | 2014-03-12 |
Family
ID=50214362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310571722.8A Pending CN103633615A (en) | 2013-11-13 | 2013-11-13 | Protection method for trip loop of distribution terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103633615A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872167A (en) * | 2021-11-24 | 2021-12-31 | 国网重庆市电力公司电力科学研究院 | Device and method for preventing protection misoperation or refusal caused by direct current system ground fault |
-
2013
- 2013-11-13 CN CN201310571722.8A patent/CN103633615A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113872167A (en) * | 2021-11-24 | 2021-12-31 | 国网重庆市电力公司电力科学研究院 | Device and method for preventing protection misoperation or refusal caused by direct current system ground fault |
| CN113872167B (en) * | 2021-11-24 | 2024-05-28 | 国网重庆市电力公司电力科学研究院 | Device and method for preventing protection misoperation or refusal operation caused by direct current system ground fault |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105006806A (en) | Circuit breaker series connection type electrical trip prevention circuit | |
| CN204858540U (en) | Circuit breaker serial -type is electric prevents rebound way | |
| CN103633615A (en) | Protection method for trip loop of distribution terminal | |
| CN203607830U (en) | Protective circuit of power distribution terminal trip circuit | |
| CN202231403U (en) | Closing protection device of permanent magnetism operating mechanism | |
| CN204102831U (en) | A kind of undervoltage tripping function circuit breaker | |
| CN203760403U (en) | Circuit breaker with time relay | |
| CN204258129U (en) | A kind of High-voltage Incoming Cabinet | |
| CN202309036U (en) | Device for protecting motor | |
| CN203165831U (en) | Breaker | |
| CN204045485U (en) | A kind of Fast Speed Vacuum Circuit Breaker | |
| CN202094050U (en) | Trip device for managing load | |
| CN201868839U (en) | Over-current protection circuit | |
| CN103337850B (en) | A kind of HVDC gas-break switch with wide-range current | |
| CN205900465U (en) | Miniature circuit breaker | |
| CN204537973U (en) | Big current fast acting fuse | |
| CN104183432A (en) | Breaker with prepayment function | |
| CN204130472U (en) | A kind of circuit breaker | |
| CN205050692U (en) | Distribution transformer on post with built -in protect function | |
| CN204391722U (en) | A kind of Novel electric surge protector | |
| CN103281015B (en) | A kind of novel F-C loop configuration circuit | |
| CN203456852U (en) | Fee-control intelligent ammeter tripping loop protection circuit | |
| CN202978891U (en) | Circuit realizing device used for fast starting out | |
| CN202564154U (en) | Anti-tripping circuit device for imported circuit breaker body | |
| CN205319110U (en) | Electric auxiliary device of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |