CN112186633A - Operation method for live replacement of voltage transformer isolation device on column - Google Patents
Operation method for live replacement of voltage transformer isolation device on column Download PDFInfo
- Publication number
- CN112186633A CN112186633A CN202011245074.3A CN202011245074A CN112186633A CN 112186633 A CN112186633 A CN 112186633A CN 202011245074 A CN202011245074 A CN 202011245074A CN 112186633 A CN112186633 A CN 112186633A
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- CN
- China
- Prior art keywords
- column
- voltage transformer
- replacement
- control box
- power
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- 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
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses an operation method for replacing a voltage transformer isolating device on a column in a live mode, which comprises the following steps: step 1, when the uninterrupted operation is to be started, an isolation disconnecting link of an isolation device of a voltage transformer on a live replacement column is in a closing state, a power switch of a control box of a circuit breaker on the column is closed, and a power supply mode of a battery of the control box is adopted; step 2, after the on-column circuit breaker control box adopts a battery mode to supply power, switching-off operation is carried out on the novel on-column voltage transformer isolation device for live replacement to form an obvious isolation port, and the on-column voltage transformer can be replaced without power outage; and 3, after the replacement operation without power outage is finished, closing the disconnecting link, and then opening a power supply mode switch of the pole-mounted circuit breaker control box to finish the replacement operation. The invention can realize the live replacement of the voltage transformer isolating device.
Description
Technical Field
The invention relates to an operation method for replacing a voltage transformer isolating device on a column in an electrified way, which is used in the field of electric power engineering.
Background
In recent years, the pole-mounted circuit breaker has the advantages of multiple functions of voltage and current acquisition, fault judgment, remote control on-off operation and the like, is basically maintenance-free, can be effectively and automatically switched on and off to remove fault points when short-circuit current is met after a protection value is set, effectively ensures safe and stable operation of a power grid and power supply reliability, and is an important terminal device on a 10kV power distribution overhead line.
The pole-mounted circuit breaker device is provided with a parallel voltage transformer. And (3) according to the requirements of Q/GDW 1799.2-2013 'part of line of electric power safety work regulations', namely after the transformer and the voltage transformer on the side of the access line are surely quitted from operation, the no-load line can be disconnected and connected in an electrified way. Along with the installation and replacement of a large number of circuit breakers on the column, the problem that the voltage transformer breaks down is also occasionally caused; meanwhile, due to the installation of the pole-mounted circuit breaker, the line must be in a power failure state, and the power failure times of the line are increased. The existing pole structure relates to the maintenance, technical improvement and defect elimination of a pole-mounted circuit breaker, wherein firstly, a disconnecting switch is used for replacing the pole-mounted circuit breaker, and secondly, power failure is carried out; when the voltage transformer is replaced due to a fault, power failure replacement is also needed. Therefore, the number of line power failure times and the power failure duration must be increased, the waiting duration and the complaint rate of equipment users are increased, and the power supply service quality is seriously influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an operation method for replacing a voltage transformer isolating device on a column in a charged mode, which can realize the charged replacement of the voltage transformer isolating device.
One technical scheme for achieving the above purpose is as follows: an operation method for replacing a voltage transformer isolating device on a column in a live mode comprises the following steps:
step 1, when the uninterrupted operation is to be started, an isolation disconnecting link of an isolation device of a voltage transformer on a live replacement column is in a closing state, a power switch of a control box of a circuit breaker on the column is closed, and a power supply mode of a battery of the control box is adopted;
step 2, after the on-column circuit breaker control box adopts a battery mode to supply power, switching-off operation is carried out on the novel on-column voltage transformer isolation device for live replacement to form an obvious isolation port, and the on-column voltage transformer can be replaced without power outage;
and 3, after the replacement operation without power outage is finished, closing the disconnecting link, and then opening a power supply mode switch of the pole-mounted circuit breaker control box to finish the replacement operation.
The operation method for replacing the voltage transformer isolating device on the column in a live-line mode solves the problem of live-line operation, does not influence the installation framework of the original line equipment device, and is simple, convenient, safe and reliable in construction.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by specific examples:
the invention relates to an operation method for replacing a voltage transformer isolating device on a column in a live mode, which comprises the following steps:
step 1, when the uninterrupted operation is to be started, an isolation disconnecting link of an isolation device of a voltage transformer on a live replacement column is in a closing state, a power switch of a control box of a circuit breaker on the column is closed, and a power supply mode of a battery of the control box is adopted;
step 2, after the on-column circuit breaker control box adopts a battery mode to supply power, switching-off operation is carried out on the novel on-column voltage transformer isolation device for live replacement to form an obvious isolation port, and the on-column voltage transformer can be replaced without power outage;
and 3, after the replacement operation without power outage is finished, closing the disconnecting link, and then opening a power supply mode switch of the pole-mounted circuit breaker control box to finish the replacement operation.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (1)
1. An operation method for replacing a voltage transformer isolating device on a column in a live mode is characterized by comprising the following steps:
step 1, when the uninterrupted operation is to be started, an isolation disconnecting link of an isolation device of a voltage transformer on a live replacement column is in a closing state, a power switch of a control box of a circuit breaker on the column is closed, and a power supply mode of a battery of the control box is adopted;
step 2, after the on-column circuit breaker control box adopts a battery mode to supply power, switching-off operation is carried out on the novel on-column voltage transformer isolation device for live replacement to form an obvious isolation port, and the on-column voltage transformer can be replaced without power outage;
and 3, after the replacement operation without power outage is finished, closing the disconnecting link, and then opening a power supply mode switch of the pole-mounted circuit breaker control box to finish the replacement operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245074.3A CN112186633A (en) | 2020-11-10 | 2020-11-10 | Operation method for live replacement of voltage transformer isolation device on column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011245074.3A CN112186633A (en) | 2020-11-10 | 2020-11-10 | Operation method for live replacement of voltage transformer isolation device on column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112186633A true CN112186633A (en) | 2021-01-05 |
Family
ID=73917440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011245074.3A Pending CN112186633A (en) | 2020-11-10 | 2020-11-10 | Operation method for live replacement of voltage transformer isolation device on column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112186633A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114725827A (en) * | 2022-02-28 | 2022-07-08 | 云南电网有限责任公司红河供电局 | 10kV line live-line breaker live-line voltage transformer disconnection and connection operation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325627A (en) * | 2012-03-20 | 2013-09-25 | 深圳市金博联电力技术有限公司 | Fast and intelligent 10KV pole-mounted breaker |
| CN105280430A (en) * | 2015-10-20 | 2016-01-27 | 北京华电瑞通电力工程技术有限公司 | 10kV solar intelligent pole-mounted vacuum circuit breaker |
| CN205159193U (en) * | 2015-10-20 | 2016-04-13 | 北京华电瑞通电力工程技术有限公司 | Vacuum circuit breaker on 10kV solar energy intelligence post |
| CN210693223U (en) * | 2019-11-19 | 2020-06-05 | 国网上海市电力公司 | Voltage transformer isolation combination device applied to uninterrupted operation |
-
2020
- 2020-11-10 CN CN202011245074.3A patent/CN112186633A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325627A (en) * | 2012-03-20 | 2013-09-25 | 深圳市金博联电力技术有限公司 | Fast and intelligent 10KV pole-mounted breaker |
| CN105280430A (en) * | 2015-10-20 | 2016-01-27 | 北京华电瑞通电力工程技术有限公司 | 10kV solar intelligent pole-mounted vacuum circuit breaker |
| CN205159193U (en) * | 2015-10-20 | 2016-04-13 | 北京华电瑞通电力工程技术有限公司 | Vacuum circuit breaker on 10kV solar energy intelligence post |
| CN210693223U (en) * | 2019-11-19 | 2020-06-05 | 国网上海市电力公司 | Voltage transformer isolation combination device applied to uninterrupted operation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114725827A (en) * | 2022-02-28 | 2022-07-08 | 云南电网有限责任公司红河供电局 | 10kV line live-line breaker live-line voltage transformer disconnection and connection operation method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210105 |