CN104505823A - Method for power maintenance through transient power stop and transient stop selective reclosing circuit - Google Patents
Method for power maintenance through transient power stop and transient stop selective reclosing circuit Download PDFInfo
- Publication number
- CN104505823A CN104505823A CN201410713952.8A CN201410713952A CN104505823A CN 104505823 A CN104505823 A CN 104505823A CN 201410713952 A CN201410713952 A CN 201410713952A CN 104505823 A CN104505823 A CN 104505823A
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- CN
- China
- Prior art keywords
- time
- open switch
- time relay
- relay
- normal open
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
Abstract
Provided are a method for power maintenance through transient power stop and a transient stop selective reclosing circuit. The transient stop selective reclosing circuit comprises a bus and at least one branch line. Each branch line is provided with a time relay normally open switch which is connected in series with a current transformer and an intermediate relay; an intermediate relay normally closed contact is connected in parallel to the two ends of the time relay normally open switch and the intermediate relay; and the intermediate relay normally closed contact is connected in series with a time relay. The beneficial effect is that whether a line is a faulty line can be judged on an integrated computer platform according to the switching time of circuit breaking operation for inspection. In the process, the power-off time of a circuit without faults is shortened to 1-5 seconds, thus reducing the power outage time for the society.
Description
Technical field
The present invention relates to electric power system stop in wink select reclosing device, be specifically related to a bus drive stop in the wink of multiple branch line select reclosing device.
Background technology
Current China 110KV and following transformer station major part have achieved comprehensive self-protection, are provided with reclosing in the line.According to statistics, there is the fault of 10% to be permanent fault, need manual maintenance.Be drive multiple sub-line circuit by bus in the transformer station in many places, when busbar grounding, directly can not judge it is which root line line failure.The method adopted is still stop ground connection selection traditional wink, namely according to the order prearranged circuit disconnection one by one, checks whether fault disappears, then in power transmission after disconnecting.This process generally needs 1-3 minute, the power failure causing fault-free circuit artificial like this.The dependence of modern society to electricity consumption is more and more higher, and investigation causes loss to society like this.
Summary of the invention
The object of this invention is to provide a kind of time less of the investigation fault of sub-line circuit that makes to stopping 1-5 wink in second to select reclosing device.
Technical scheme of the present invention is specially:
Stop in wink to select reclosing circuit, it comprises bus and at least one branch line, every bar branch line is equipped with time relay normal open switch, described time relay normal open switch and current transformer, auxiliary relay are connected in series, auxiliary relay normally-closed contact is connected in parallel on the two ends of time relay normal open switch and auxiliary relay, the auxiliary relay normally-closed contact series connection time relay.
Described current transformer is connected with remote controllers.
Current transformer is connected with data display unit.
One stops repair method in electric power wink, and it comprises the steps:
1., when normally working, time relay normal open switch is kept closed, and auxiliary relay is in obtain electricity condition always, and its auxiliary relay normally-closed contact disconnects, and branch line normally works;
2., maintenance time, by time relay normal open switch cut off, auxiliary relay dead electricity, auxiliary relay normally-closed contact maintains original closure state; If branch line fault-free, then the time relay obtains electric, and after the spacer segment time, time relay normal open switch closes; If branch line fault, then the time relay still can not obtain electric, then time relay normal open switch continues to disconnect.
Described interval time is 1-5s.
Beneficial effect of the present invention is: according to the time checking open-circuit operation switch, thus can determine whether faulty line at brain comprehensive platform.The power-off time of this process faultless circuit shortens to 1-5 second, for society decreases interruption duration.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Embodiment
As shown in Figure 1, a kind of stopping in wink selects reclosing circuit, and it comprises bus 1 and at least one branch line 2, and every bar branch line is equipped with time relay normal open switch 3, and time relay normal open switch 3 here serves as open-circuit operation switch.
Above-mentioned time relay normal open switch 3 is connected in series with current transformer 7, auxiliary relay 5, auxiliary relay normally-closed contact 4 is connected in parallel on the two ends of time relay normal open switch 3 and auxiliary relay 5, and auxiliary relay normally-closed contact 4 is connected the time relay 8.
Above-mentioned current transformer 7 is connected with remote controllers, facilitates long-range staff to monitor in real time.
Above-mentioned current transformer 7 is also connected with data display unit, and convenient on-the-spot staff obtains current data.
One stops repair method in electric power wink, and it comprises the steps:
1., when normally working, time relay normal open switch 3 is kept closed, and auxiliary relay 5 is in obtain electricity condition always, and its auxiliary relay normally-closed contact 4 disconnects, and branch line normally works;
2., maintenance time, cut off by time relay normal open switch 3, auxiliary relay 5 dead electricity, auxiliary relay normally-closed contact 4 maintains original closure state; If branch line fault-free, then the time relay 8 obtains electric, and after the spacer segment time, time relay normal open switch 3 closes; If branch line fault, then the time relay 8 still can not obtain electric, then time relay normal open switch 3 continues to disconnect.
Described interval time is 1-5s.
Like this, when overhauling sub-line circuit, if branch line exists fault point 6, then the time relay 8 still can not obtain electric, then time relay normal open switch 3 continues to disconnect; If there is not fault in branch line, then the time relay 8 obtains electric, after the spacer segment time, time relay normal open switch 3 closes, the opening time of such operations staff review time relay normally open switch 3 in the remote interface of comprehensive automation, whether there is involution phenomenon, just can judge branch line whether fault.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for a person skilled in the art, and not departing under general idea prerequisite of the present invention, can also make some changes and improvements, these also should be considered as protection scope of the present invention.
Claims (5)
1. stop in wink to select reclosing circuit, it comprises bus (1) and at least one branch line (2), it is characterized in that: every bar branch line is equipped with time relay normal open switch (3), described time relay normal open switch and current transformer (7), auxiliary relay (5) are connected in series, auxiliary relay normally-closed contact (4) is connected in parallel on the two ends of time relay normal open switch (3) and auxiliary relay (5), auxiliary relay normally-closed contact (4) the series connection time relay (8).
2. stop in wink according to claim 1 to select reclosing circuit, it is characterized in that: described current transformer (7) is connected with remote controllers.
3. stop in wink according to claim 1 to select reclosing circuit, it is characterized in that: current transformer (7) is connected with data display unit.
4. electric power wink stops a repair method, and it is characterized in that, it comprises the steps:
1., when normally working, time relay normal open switch (3) is kept closed, and auxiliary relay (5) is in obtain electricity condition always, and its auxiliary relay normally-closed contact (4) disconnects, and branch line normally works;
2., maintenance time, by time relay normal open switch (3) cut off, auxiliary relay (5) dead electricity, auxiliary relay normally-closed contact (4) maintains original closure state; If branch line fault-free, then the time relay (8) obtains electric, and after the spacer segment time, time relay normal open switch (3) closes; If branch line fault, then the time relay (8) still can not obtain electric, then time relay normal open switch (3) continues to disconnect.
5. electric power wink according to claim 1 stops repair method, it is characterized in that: described interval time is 1-5s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713952.8A CN104505823B (en) | 2014-12-02 | 2014-12-02 | Stop repair method electric power wink and stop in wink to select reclosing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410713952.8A CN104505823B (en) | 2014-12-02 | 2014-12-02 | Stop repair method electric power wink and stop in wink to select reclosing circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104505823A true CN104505823A (en) | 2015-04-08 |
| CN104505823B CN104505823B (en) | 2017-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410713952.8A Active CN104505823B (en) | 2014-12-02 | 2014-12-02 | Stop repair method electric power wink and stop in wink to select reclosing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104505823B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656199A (en) * | 2016-01-07 | 2016-06-08 | 武汉里得电力科技股份有限公司 | Automatic and dynamic monitoring type digital connection and transmission line |
| CN111682647A (en) * | 2020-07-03 | 2020-09-18 | 国网四川省电力公司绵阳供电公司 | Power-off resetting device and system for telecontrol signal of transformer substation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733710Y (en) * | 2004-07-31 | 2005-10-12 | 穆瑞国 | Urban power supply and inversion power supply changeover controller |
| JP2010273430A (en) * | 2009-05-20 | 2010-12-02 | Mitsubishi Electric Corp | Device for switching load of transformer |
| US20130285458A1 (en) * | 2012-04-27 | 2013-10-31 | Hon Hai Precision Industry Co., Ltd. | Power source switching circuit and power source switching system with power source switching circuit |
| CN204333953U (en) * | 2014-12-02 | 2015-05-13 | 国家电网公司 | Stop in wink to select reclosing circuit |
-
2014
- 2014-12-02 CN CN201410713952.8A patent/CN104505823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2733710Y (en) * | 2004-07-31 | 2005-10-12 | 穆瑞国 | Urban power supply and inversion power supply changeover controller |
| JP2010273430A (en) * | 2009-05-20 | 2010-12-02 | Mitsubishi Electric Corp | Device for switching load of transformer |
| US20130285458A1 (en) * | 2012-04-27 | 2013-10-31 | Hon Hai Precision Industry Co., Ltd. | Power source switching circuit and power source switching system with power source switching circuit |
| CN204333953U (en) * | 2014-12-02 | 2015-05-13 | 国家电网公司 | Stop in wink to select reclosing circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656199A (en) * | 2016-01-07 | 2016-06-08 | 武汉里得电力科技股份有限公司 | Automatic and dynamic monitoring type digital connection and transmission line |
| CN105656199B (en) * | 2016-01-07 | 2018-03-30 | 武汉里得电力科技股份有限公司 | Automatic dynamic monitoring is digital to connect power transmission line |
| CN111682647A (en) * | 2020-07-03 | 2020-09-18 | 国网四川省电力公司绵阳供电公司 | Power-off resetting device and system for telecontrol signal of transformer substation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104505823B (en) | 2017-08-08 |
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