CN106340851B - A kind of reclosure loop reform connecing small power station's route suitable for T - Google Patents
A kind of reclosure loop reform connecing small power station's route suitable for T Download PDFInfo
- Publication number
- CN106340851B CN106340851B CN201610823364.9A CN201610823364A CN106340851B CN 106340851 B CN106340851 B CN 106340851B CN 201610823364 A CN201610823364 A CN 201610823364A CN 106340851 B CN106340851 B CN 106340851B
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- China
- Prior art keywords
- reclosing
- normally closed
- route
- loop
- power station
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- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 210000000056 organ Anatomy 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of reclosure loop reforms that small power station's route is connect suitable for T; it includes outlet loop, monitoring circuit, control power supply and protection power source; outlet loop is connected between the positive and negative anodes of control power supply, and monitoring circuit is connected between the positive and negative anodes of protection power source；Outlet loop includes reclosing action connection point CHJ, reclosing pressing plate LP, charged display device normally closed contact DS-1, the combined floodgate guard relay HBJ, opening/closing operation mechanism inside the protective device being sequentially connected in series；Monitoring circuit include the optocoupler of the charged display device normally closed contact DS-2 being sequentially connected in series and protective device open into；It has the following advantages: realizing that T connects small power station's route automatic reclosing on the basis of not increasing primary equipment investment, reclosing success rate and accuracy are high, real-time monitoring reclosure loop reform state simultaneously reminds monitoring personnel under abnormal conditions in time, improves the power supply reliability that T connects small power station's route.
Description
Technical field
The present invention relates to a kind of reclosure loop reforms that small power station's route is connect suitable for T.
Background technique
After route T meets small power station, reclosing mode is complex, and it is special both to have needed to consider that the single supply of feeder line characteristic closes a floodgate
Sign, and need to consider dual power supply or more power supply reclosing features that the power supply characteristic that small power station provides is formed.If non-Switching Synchronization,
Serious impact will be generated to electric system, or even threaten the safety of the person, equipment.Currently used method is using inspection route
Without pressure or release the modes such as reclosing function.These methods all there is a problem of larger in actual use process.Using inspection line
Road needs line side to be respectively arranged with voltage transformer without the mode of pressure, and 10kV, 35kV feeder clearance line voltage transformer at present
Installation rate it is not high, especially for the longer substation of the time limit, the installation rate of line voltage transformer is lower, is unable to satisfy reality
Requirement, if install additional line voltage transformer need to carry out power failure technological transformation work, consuming time is long, less economical.Using releasing
The mode of reclosing function sacrifices supply load on feeder line, reduces power supply reliability.
Summary of the invention
The present invention provides a kind of reclosure loop reforms that small power station's route is connect suitable for T, and which overcome institutes in background technique
The deficiencies in the prior art stated.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of reclosure loop reform connecing small power station's route suitable for T, it includes outlet loop, monitoring circuit, control power supply
And protection power source, the outlet loop are connected between the positive and negative anodes of control power supply, the monitoring circuit is connected to protection power source
Positive and negative anodes between；The outlet loop includes reclosing action connection point CHJ, the reclosing inside the protective device being sequentially connected in series
Pressing plate LP, charged display device normally closed contact DS-1, combined floodgate guard relay HBJ, opening/closing operation mechanism；The monitoring circuit
Optocoupler including the charged display device normally closed contact DS-2 being sequentially connected in series and protective device open into；Wherein, protection dress
It is set to protection for feed line measure and control device.
Among one embodiment: there is the charged display device at least two pairs of normally closed contacts, normally closed contact to refer to route
When three-phase is without pressure, normally closed contact closure；When the electrification of an at least phase or charged display device failure, contact is disconnected.
Among one embodiment: the reclosing movement setting time of the feed motion contact CHJ inside protective device is 0-10
Second.
Among one embodiment: the reclosing movement setting time of the feed motion contact CHJ inside protective device is 8 seconds.
Among one embodiment: reclosing movement is using not procuratorial organ's formula inside the protective device.
The technical program compared with the background art, it has the following advantages:
1, the normally closed contact that charged display device has been concatenated in reclosure loop reform, when any phase of route has pressure, reclosing
Circuit locking；Only route three-phase without pressure in the case where, the circuit of reclosing could be connected, and be realized by reclosure loop reform
Same period safety closing does not increase primary equipment investment without additional installation voltage transformer.
2, small power station's off-the-line demagnetizing time can be effectively escaped in such a way that not procuratorial organ's formula is combined with deferred action, changed
Previous T is become and has connect the situation that small power station's circuit re-switching exits, improved the success rate of reclosing, has improved T and connect small power station's route
Power supply reliability.
3, monitoring circuit has monitored the normally closed contact of charged display device, can monitor band under system normal operation
The contact performance of electric display device, the charged display device of discovery damage in time, is opened in displacement and protective device by optocoupler
Route there is stream criterion to send " charged display device contact mistake " signal to master supervisory system, remind the timely Shen of monitoring personnel
Defect is reported, reclosure loop reform is avoided to judge by accident, improves the correctness of reclosure loop reform movement.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of circuit diagram for the reclosure loop reform that small power station's route is connect suitable for T described in the present embodiment.
Specific embodiment
Fig. 1 is please referred to, a kind of reclosure loop reform connecing small power station's route suitable for T, it includes outlet loop, monitors back
Road, control power supply 10 and protection power source 20, the outlet loop is connected between the positive and negative anodes of control power supply 10, described to monitor back
Road is connected between the positive and negative anodes of protection power source 20；The outlet loop includes the reclosing inside the protective device being sequentially connected in series
Action connection point CHJ, reclosing pressing plate LP, charged display device normally closed contact DS-1, combined floodgate guard relay HBJ, divide-shut brake behaviour
Make mechanism 30；The monitoring circuit includes that the optocoupler of the charged display device normally closed contact DS-2 being sequentially connected in series and protective device is opened
Enter 40；Wherein the protective device is each electrical equipment producer protection for feed line measure and control device produced.
The charged display device has at least two pairs of normally closed contacts, when normally closed contact refers to route three-phase without pressure, often
Close junction closure；When the electrification of an at least phase or charged display device failure, contact is disconnected.
The reclosing movement setting time of feed motion contact CHJ inside protective device is 0-10 seconds, it is preferable that protection
The reclosing movement setting time of feed motion contact CHJ inside device is 8 seconds.
Inside the protective device reclosing movement is not examined and the mode of directly reclosing, neither using not procuratorial organ's formula
The inspection same period is carried out also without checkout voltage.
It is suitable for the specific working method of reclosure loop reform that T connects small power station's route described in the present embodiment are as follows:
Under normal operation, feeder line three-phase has voltage, and charged display device normally closed contact DS-2 is disconnected, monitored back
Road is off-state, if normally closed contact DS-2 is closed at this time, shows that charged display device existing defects need repairing, passes through light
Coupling, which opens route in displacement and protective device, has stream criterion to send " charged display device contact mistake " signal to main station monitoring system
System reminds monitoring personnel to declare defect in time.
Reclosing movement when needing to be overlapped line switching after route breaks down tripping, inside protective device
Contact CHJ is closed after setting time 8 seconds；At this point, if T connects small power station's route without pressure, charged display device normally closed contact
DS-1 closure, reclosure loop reform conducting, allows reclosing to export；Conversely, if T connects the electrification of small power station's route, although protective device
Internal reclosing action connection point CHJ closure, but charged display device contact DS-1 is not closed, and reclosure loop reform is not turned on, weight
Combined floodgate cannot export.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (3)
1. a kind of reclosure loop reform for connecing small power station's route suitable for T, it is characterised in that: including outlet loop, monitoring circuit, control
Power supply processed and protection power source, the outlet loop are connected between the positive and negative anodes of control power supply, and the monitoring circuit is connected to guarantor
It protects between the positive and negative anodes of power supply；The outlet loop include reclosing action connection point CHJ inside the protective device being sequentially connected in series,
Reclosing pressing plate LP, charged display device normally closed contact DS-1, combined floodgate guard relay HBJ, opening/closing operation mechanism；The coincidence
There is lock action connection point CHJ reclosing to act setting time, which is set as 8-10 seconds, and the monitoring circuit includes successively
The charged display device normally closed contact DS-2 of concatenation and the optocoupler of protective device open into；Wherein, the protective device is feeder line
Protection supervisory equipment.
2. a kind of reclosure loop reform for connecing small power station's route suitable for T according to claim 1, it is characterised in that: described
Charged display device has at least two pairs of normally closed contacts, when normally closed contact refers to route three-phase without pressure, normally closed contact closure；Extremely
When few phase electrification or charged display device failure, contact is disconnected.
3. a kind of reclosure loop reform for connecing small power station's route suitable for T according to claim 1, it is characterised in that: described
Reclosing movement is using not procuratorial organ's formula inside protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823364.9A CN106340851B (en) | 2016-09-14 | 2016-09-14 | A kind of reclosure loop reform connecing small power station's route suitable for T |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823364.9A CN106340851B (en) | 2016-09-14 | 2016-09-14 | A kind of reclosure loop reform connecing small power station's route suitable for T |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106340851A CN106340851A (en) | 2017-01-18 |
| CN106340851B true CN106340851B (en) | 2019-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610823364.9A Active CN106340851B (en) | 2016-09-14 | 2016-09-14 | A kind of reclosure loop reform connecing small power station's route suitable for T |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684812A (en) * | 2017-02-17 | 2017-05-17 | 国网山东省电力公司威海供电公司 | Device and method for achieving reclosing non-voltage check |
| CN108711834A (en) * | 2018-06-06 | 2018-10-26 | 广东电网有限责任公司 | Improve the system and method for reclosing success rate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123767A1 (en) * | 2012-02-24 | 2013-08-29 | 安徽省电力公司芜湖供电公司 | Transformer substation dual-protocol monitoring system and method thereof |
| CN203503547U (en) * | 2013-10-18 | 2014-03-26 | 江苏中科时代电气制造股份有限公司 | 10kV transformer substation vacuum circuit breaker closing control circuit |
| CN104218666A (en) * | 2014-09-01 | 2014-12-17 | 国家电网公司 | Automatic throw-in device of backup closing coil for 10kV vacuum breaker |
| CN105305286A (en) * | 2015-10-28 | 2016-02-03 | 国网山东郯城县供电公司 | Reclose forced interlocking device with dual protection and operation method thereof |
-
2016
- 2016-09-14 CN CN201610823364.9A patent/CN106340851B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123767A1 (en) * | 2012-02-24 | 2013-08-29 | 安徽省电力公司芜湖供电公司 | Transformer substation dual-protocol monitoring system and method thereof |
| CN203503547U (en) * | 2013-10-18 | 2014-03-26 | 江苏中科时代电气制造股份有限公司 | 10kV transformer substation vacuum circuit breaker closing control circuit |
| CN104218666A (en) * | 2014-09-01 | 2014-12-17 | 国家电网公司 | Automatic throw-in device of backup closing coil for 10kV vacuum breaker |
| CN105305286A (en) * | 2015-10-28 | 2016-02-03 | 国网山东郯城县供电公司 | Reclose forced interlocking device with dual protection and operation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 区域小水电站对微机型自动重合闸的影响分析;陈申华;《机电信息》;20111031(第30期);第13-14页 |
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| Publication number | Publication date |
|---|---|
| CN106340851A (en) | 2017-01-18 |
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