CN106340851A - Reclosing loop suitable for T connected small hydropower line - Google Patents
Reclosing loop suitable for T connected small hydropower line Download PDFInfo
- Publication number
- CN106340851A CN106340851A CN201610823364.9A CN201610823364A CN106340851A CN 106340851 A CN106340851 A CN 106340851A CN 201610823364 A CN201610823364 A CN 201610823364A CN 106340851 A CN106340851 A CN 106340851A
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- CN
- China
- Prior art keywords
- loop
- reclosing
- power supply
- protection
- circuit
- 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.)
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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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a reclosing loop suitable for a T connected small hydropower line. The loop comprises an outlet loop, a monitoring loop, a control power supply and a protection power supply. The outlet loop is connected between positive and negative electrodes of the control power supply. The monitoring loop is connected between positive and negative electrodes of the protection power supply. The outlet loop comprises a reclosing motion contact point CHJ, a reclosing pressing plate LP, an electrified-display-apparatus normally-closed contact point DS-1, a closing maintenance relay HBJ and a breaking-closing operating mechanism which are successively connected in series and are in a protection device. The monitoring loop comprises an electrified-display-apparatus normally-closed contact point DS-2 and an optical coupling switch of the protection device which are successively connected in series. The loop possesses advantages that on a basis of not increasing an equipment investment, automatic reclosing of the T connected small hydropower line is realized; a reclosing success rate and a correct rate are high; simultaneously a reclosing loop state is monitored in real time; and under an abnormal condition, monitoring personnel is timely prompted and power supply reliability of the T connected small hydropower line is increased.
Description
Technical field
The present invention relates to a kind of be applied to the reclosure loop reform that t connects small power station's circuit.
Background technology
After circuit t meets small power station, reclosing mode is complex, has both needed the single supply considering feeder line characteristic to close a floodgate special
Levy, need to consider dual power supply or the many power supplys reclosing feature that the power supply characteristic that small power station provides is formed again.If non-Switching Synchronization,
Power system will be produced with serious impact, or even threaten the person, the safety of equipment.The method commonly used at present is using inspection circuit
No press or release the modes such as reclosing function.These methods all there is a problem of larger in actually used process.Using inspection line
The mode of road no pressure needs line side to be respectively arranged with voltage transformer, and current 10kv, 35kv feeder clearance line voltage transformer
Installation rate not high, especially for the longer transformer station of the time limit, the installation rate of line voltage transformer lower it is impossible to meet actual
Requirement, if installing line voltage transformer additional to need to carry out power failure technological transformation work, the time of expending is long, less economical.Using releasing
The mode of reclosing function sacrifices supply load on feeder line, reduces power supply reliability.
Content of the invention
The invention provides a kind of be applied to the reclosure loop reform that t connects small power station's circuit, which overcome institute in background technology
The deficiencies in the prior art stated.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of be applied to the reclosure loop reform that t connects small power station's circuit, it include outlet loop, monitoring circuit, control power supply
And protection power supply, described outlet loop be connected to control power supply both positive and negative polarity between, described monitoring circuit is connected to protection power supply
Both positive and negative polarity between；Described outlet loop includes the reclosing action connection point chj within protection device, the reclosing 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；Described monitoring circuit
Including the charged display device normally closed contact ds-2 being sequentially connected in series and protection device optocoupler open into；Wherein, described protection dress
It is set to protection for feed line measure and control device.
Among one embodiment: described charged display device has at least two pairs normally closed contacts, its normally closed contact refers to circuit
When three-phase is no pressed, normally closed contact closes；At least one is mutually powered or during charged display device fault, contact disconnects.
Among one embodiment: the reclosing action setting time of the feed motion contact chj within protection device is 0-10
Second.
Among one embodiment: the reclosing action setting time of the feed motion contact chj within protection device is 8 seconds.
Among one embodiment: the internal reclosing action of described protection device is using not procuratorial organ's formula.
Compared with background technology, it has the advantage that the technical program
1st, concatenated the normally closed contact of charged display device in reclosure loop reform, when circuit is arbitrary mutually have pressure when, reclosing
Loop locking；Only in the case that circuit three-phase is all no pressed, the loop of reclosing could turn on, and is realized by reclosure loop reform
Same period safety closing, need not additionally install voltage transformer, do not increase primary equipment investment.
2nd, can effectively escape small power station's off-the-line demagnetizing time by the way of procuratorial organ's formula is not combined with deferred action, change
Become conventional t and connect the situation that small power station's circuit re-switching exits, improved the success rate of reclosing, improved t and connect small power station's circuit
Power supply reliability.
3rd, 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, is found the charged display device damaging in time, is opened in displacement and protection device by optocoupler
Circuit have stream criterion to send " charged display device contact mistake " signal to master supervisory system, remind the timely Shen of monitoring personnel
Report defect, it is to avoid reclosure loop reform is judged by accident, improves the correctness of reclosure loop reform action.
Brief description
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of to be applied to the circuit theory diagrams that t connects the reclosure loop reform of small power station's circuit described in the present embodiment.
Specific embodiment
Refer to Fig. 1, a kind of be applied to the reclosure loop reform that t connects small power station's circuit, it includes outlet loop, monitors back
Road, control power supply 10 and protection power supply 20, described outlet loop is connected between the both positive and negative polarity controlling power supply 10, described monitors back
Road is connected between the both positive and negative polarity of protection power supply 20；Described outlet loop includes the reclosing within protection 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；Described monitoring circuit includes the charged display device normally closed contact ds-2 being sequentially connected in series and the optocoupler of protection device is opened
Enter 40；The protection for feed line measure and control device that wherein said protection device is produced by each electrical equipment producer.
Described charged display device has at least two pairs normally closed contacts, when its normally closed contact refers to that circuit three-phase is no pressed, often
Close junction closure；At least one is mutually powered or during charged display device fault, contact disconnects.
The reclosing action setting time of the feed motion contact chj within protection device is the 0-10 second it is preferable that protecting
The reclosing action setting time of the feed motion contact chj within device is 8 seconds.
The internal reclosing action of described protection device, using not procuratorial organ's formula, is not examined and the mode of direct reclosing, neither
Carry out examine the same period do not carry out checkout voltage yet.
It is applied to t described in the present embodiment and connects the specific working method of reclosure loop reform of small power station's circuit and be:
Under normal operation, feeder line three-phase has voltage, and charged display device normally closed contact ds-2 disconnects, and monitors back
Road is off-state, if now normally closed contact ds-2 closure, shows that charged display device existing defects need repairing, by light
Coupling opens displacement has stream criterion to send " charged display device contact mistake " signal to main station monitoring system with circuit in protection device
System, reminds monitoring personnel to declare defect in time.
When needing line switching is overlapped after circuit breaks down tripping operation, the reclosing action within protection device
Contact chj closes after setting time 8 seconds；Now, if t meets small power station, circuit is no pressed, charged display device normally closed contact
Ds-1 closes, and reclosure loop reform conducting is it is allowed to reclosing exports；If conversely, t connect small power station's circuit powered although protection device
Internal reclosing action connection point chj closure, but charged display device contact ds-1 does not close, and reclosure loop reform is not turned on, weight
Combined floodgate can not export.
The above, only present pre-ferred embodiments, therefore can not limit according to this present invention enforcement scope, that is, according to
Equivalence changes and modification that the scope of the claims of the present invention and description are made, all should still belong in the range of the present invention covers.
Claims (5)
1. a kind of be applied to t connect small power station's circuit reclosure loop reform it is characterised in that: include outlet loop, monitoring circuit, control
Power supply processed and protection power supply, described outlet loop is connected between the both positive and negative polarity controlling power supply, and described monitoring circuit is connected to guarantor
Between the both positive and negative polarity of shield power supply；The reclosing action connection point chj within protection device that described outlet loop includes 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；Described prison
The optocoupler including the charged display device normally closed contact ds-2 and protection device being sequentially connected in series depending on loop open into；Wherein, described
Protection device is protection for feed line measure and control device.
2. according to claim 1 a kind of be applied to t connect small power station's circuit reclosure loop reform it is characterised in that: described
Charged display device has at least two pairs normally closed contacts, and when its normally closed contact refers to that circuit three-phase is no pressed, normally closed contact closes；Extremely
Few one is mutually powered or during charged display device fault, contact disconnects.
3. according to claim 1 a kind of be applied to t connect small power station's circuit reclosure loop reform it is characterised in that: protection
The reclosing action setting time of the feed motion contact chj within device is the 0-10 second.
4. according to claim 3 a kind of be applied to t connect small power station's circuit reclosure loop reform it is characterised in that: protection
The reclosing action setting time of the feed motion contact chj within device is 8 seconds.
5. according to claim 1 a kind of be applied to t connect small power station's circuit reclosure loop reform it is characterised in that: described
The internal reclosing action of protection device is using not procuratorial organ's formula.
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 true CN106340851A (en) | 2017-01-18 |
| CN106340851B CN106340851B (en) | 2019-04-19 |
Family
ID=57840040
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106340851B (en) |
Cited By (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 |
|---|
| 陈申华: "区域小水电站对微机型自动重合闸的影响分析", 《机电信息》 * |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106340851B (en) | 2019-04-19 |
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