CN101794973A - Live working method for replacing distribution transformer - Google Patents
Live working method for replacing distribution transformer Download PDFInfo
- Publication number
- CN101794973A CN101794973A CN 201010140318 CN201010140318A CN101794973A CN 101794973 A CN101794973 A CN 101794973A CN 201010140318 CN201010140318 CN 201010140318 CN 201010140318 A CN201010140318 A CN 201010140318A CN 101794973 A CN101794973 A CN 101794973A
- Authority
- CN
- China
- Prior art keywords
- transformer
- circuit breaker
- distribution transformer
- converting system
- low pressure
- 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 14
- 238000009413 insulation Methods 0.000 claims description 12
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to a live working method for replacing a distribution transformer. The method comprises the following steps of: (a) respectively installing an insulated cable at the front end of the high-voltage circuit breaker of a transformer to be replaced and the back end of the low-voltage circuit breaker, respectively connecting to breakers on both sides of a mobile transformer used for temporary power supply, thereby forming an all-insulated bypath system connected in parallel to the original high-low voltage changeover system after closing the breakers on the two sides; (b) disconnecting the original high-low voltage changeover system, and replacing the original high-low voltage changeover system with a temporarily erected all-insulated bypath system; (c) and after the new high-low voltage changeover system of the distribution transformer operates normally, disconnecting and removing the all-insulated bypass changeover system. On the premise of uninterrupted power supply to users, the invention replaces the distribution transformer on load, thereby avoiding users' inconvenience and loss caused by power cut and enhancing the power distribution reliability.
Description
Technical field
The present invention relates to the method for charged for replacement transformer, particularly under the continued power condition, the method for charged for replacement distribution transformer.
Background technology
Transformer is an important equipment in electric power system.It is to utilize electromagnetic induction principle a kind of AC energy of electric pressure to be transformed into the AC energy of another kind of electric pressure.And distribution transformer is that high voltage electric energy directly is converted to life, produces low-voltage electric energy, thus distribution transformer indispensable important power equipment in daily life, production.If distribution transformer breaks down, will cause the user to have a power failure.If will become the public affairs of a 400kVA and carry out increase-volume or maintenance, adopt present power failure method to handle, at first inevitable low-pressure side load is cut off, and just causes these public affairs to become all users of rear end and has a power failure.May upset enterprise, factories and miness ordinary production so on the one hand, cause economic loss in various degree, also may influence the normal electricity consumption of resident, bring inconvenience, bring certain negative effect for the image and the reputation of power supply enterprise to life.And can reduce the continued power reliability on the other hand, and cause amount of power supply to reduce, influence the economic benefit of power supply enterprise.Calculate by reaching rated power, these public affairs per hour become amount of power supply and are 374kW.h, whole maintenance process calculated according to 4 hours, to reduce the many amount of power supply about 1500kW.h if also say power supply department, if at whole electrical network, 1 year, 10 years, 20 years ..., the amount of power supply of minimizing will be a how googol.
Summary of the invention
The purpose of this invention is to provide a kind of live line working method of changing distribution transformer, to solve under the continued power condition, promptly to finishing the replacing operation of distribution transformer under user's uninterrupted power supply situation.
The object of the present invention is achieved like this: a kind of live line working method of changing distribution transformer, carry out in turn according to the following steps:
A), load onto insulated cable at transformer high-voltage circuit breaker front end to be replaced and low-voltage circuit breaker rear end, be connected respectively on the phase shifting transformer both sides circuit breaker of making interim power supply usefulness, make it behind the both sides circuit breaker that closes, can form an all insulation bypath system in parallel with former high and low pressure converting system;
B), disconnect former transformer high and low pressure converting system, by all insulation bypath system of temporary erection, replace former high-low pressure converting system operation;
C), after the normal operation of new distribution transformer high and low pressure converting system changed, disconnect and also remove all insulation bypass converting system.
The present invention adopts the parallel operation of transformers mode, and its supply of electrical energy process is as follows: and former transformer converting system power supply → former transformer converting system and bypass converting system power simultaneously → and bypass converting system power supply → bypass converting system and new transformer converting system power → new transformer converting system power supply simultaneously.
The invention has the beneficial effects as follows:
1, improves power supply reliability;
2, increase many amount of power supply, increase power supply enterprise's economic well-being of workers and staff;
3, inconvenience and the loss of avoiding having a power failure and bringing to the user promotes the good service level, promotes corporate image.
Embodiment
A kind of live line working method of changing distribution transformer, carry out in turn according to the following steps:
A), load onto insulated cable at transformer high-voltage circuit breaker front end to be replaced and low-voltage circuit breaker rear end, be connected respectively on the phase shifting transformer both sides circuit breaker of making interim power supply usefulness, make it behind the both sides circuit breaker that closes, can form an all insulation bypath system in parallel with former high and low pressure converting system;
B), disconnect former transformer high and low pressure converting system, by all insulation bypath system of temporary erection, replace former high-low pressure converting system operation;
C), after the normal operation of new distribution transformer high and low pressure converting system changed, disconnect and also remove all insulation bypass converting system.
The present invention is by setting up insulated cable, transformer and high and low pressure side short-circuiting device, form an all insulation bypath system in parallel with former high and low pressure converting system, this all insulation bypath system can replace former distribution transformer operation when former high and low pressure converting system disconnects distribution transformer to be replaced.After the normal operation of the new distribution transformer of changing, remove all insulation bypath system again, adopt this method to realize not excising distribution transformer low-pressure side load to be replaced, under the situation about promptly not having a power failure distribution transformer to be replaced is changed, power supply client's life is not produced any influence with producing.
Claims (1)
1. live line working method of changing distribution transformer is characterized in that: carry out in turn according to the following steps:
A), load onto insulated cable at transformer high-voltage circuit breaker front end to be replaced and low-voltage circuit breaker rear end, be connected respectively on the phase shifting transformer both sides circuit breaker of making interim power supply usefulness, make it behind the both sides circuit breaker that closes, can form an all insulation bypath system in parallel with former high and low pressure converting system;
B), disconnect former transformer high and low pressure converting system, by all insulation bypath system of temporary erection, replace former high-low pressure converting system operation;
C), after the normal operation of new distribution transformer high and low pressure converting system changed, disconnect and also remove all insulation bypass converting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140318 CN101794973A (en) | 2010-04-07 | 2010-04-07 | Live working method for replacing distribution transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140318 CN101794973A (en) | 2010-04-07 | 2010-04-07 | Live working method for replacing distribution transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101794973A true CN101794973A (en) | 2010-08-04 |
Family
ID=42587455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010140318 Pending CN101794973A (en) | 2010-04-07 | 2010-04-07 | Live working method for replacing distribution transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101794973A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185260A (en) * | 2011-01-26 | 2011-09-14 | 河南省电力公司南阳供电公司 | A method for replacing a panel or a cubicle in a master control room by using a by-pass wiring method |
| CN102638009A (en) * | 2012-03-30 | 2012-08-15 | 上海市电力公司 | Operation method for first-aid repair of 630A low-tension outgoing lines by by-pass switch |
| CN103280744A (en) * | 2013-05-09 | 2013-09-04 | 国家电网公司 | Method for temporarily wiring 35kV medium voltage cables for narrow space |
| CN104104030A (en) * | 2014-07-30 | 2014-10-15 | 国家电网公司 | Hot-line work recovery method of ground wire of high-voltage cable shielding layer since stealing |
| CN104158103A (en) * | 2014-09-04 | 2014-11-19 | 国家电网公司 | Quick-repairing method for urban power distribution room |
| EP2988383A3 (en) * | 2014-08-15 | 2016-03-30 | EnBW Energie Baden-Württemberg AG | Method for de-energised maintenance of a fixed transformer station and mobile transformer station |
| CN110168826A (en) * | 2017-01-05 | 2019-08-23 | 大原电机株式会社 | Operation in section is carried out using the electric wire in insulation hot line cord holder and bypass cross-over connection electrical cables separate electric pole span and under dead wire state does not power off distribution method |
| CN110611264A (en) * | 2018-06-16 | 2019-12-24 | 南京捷泰电力设备有限公司 | A low-voltage distribution box non-stop operation system |
| CN113514669A (en) * | 2021-03-29 | 2021-10-19 | 杭州西湖电子研究所 | Wiring method for equipment detection of traction substation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2480226Y (en) * | 2001-03-13 | 2002-03-06 | 国家电力公司武汉高压研究所 | Moveable power supply vehicle |
| CN101064431A (en) * | 2006-04-29 | 2007-10-31 | 江苏省电力公司常州供电公司 | Method for replacing 10kV distributing transformer with charge |
-
2010
- 2010-04-07 CN CN 201010140318 patent/CN101794973A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2480226Y (en) * | 2001-03-13 | 2002-03-06 | 国家电力公司武汉高压研究所 | Moveable power supply vehicle |
| CN101064431A (en) * | 2006-04-29 | 2007-10-31 | 江苏省电力公司常州供电公司 | Method for replacing 10kV distributing transformer with charge |
Non-Patent Citations (1)
| Title |
|---|
| 《农村电气化》 20080731 蔡俊宇 几种配网不停电作业技术的比较 , 第07期 2 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185260A (en) * | 2011-01-26 | 2011-09-14 | 河南省电力公司南阳供电公司 | A method for replacing a panel or a cubicle in a master control room by using a by-pass wiring method |
| CN102638009B (en) * | 2012-03-30 | 2014-12-24 | 上海市电力公司 | Operation method for first-aid repair of 630A low-tension outgoing lines by by-pass switch |
| CN102638009A (en) * | 2012-03-30 | 2012-08-15 | 上海市电力公司 | Operation method for first-aid repair of 630A low-tension outgoing lines by by-pass switch |
| CN103280744A (en) * | 2013-05-09 | 2013-09-04 | 国家电网公司 | Method for temporarily wiring 35kV medium voltage cables for narrow space |
| CN103280744B (en) * | 2013-05-09 | 2015-08-19 | 国家电网公司 | A kind of for 35kV midium voltage cable patch method straitly |
| CN104104030A (en) * | 2014-07-30 | 2014-10-15 | 国家电网公司 | Hot-line work recovery method of ground wire of high-voltage cable shielding layer since stealing |
| EP2988383A3 (en) * | 2014-08-15 | 2016-03-30 | EnBW Energie Baden-Württemberg AG | Method for de-energised maintenance of a fixed transformer station and mobile transformer station |
| CN104158103A (en) * | 2014-09-04 | 2014-11-19 | 国家电网公司 | Quick-repairing method for urban power distribution room |
| CN104158103B (en) * | 2014-09-04 | 2016-03-02 | 江苏省电力公司扬州供电公司 | A kind of city power distribution room quick-speed first-aid repair method |
| CN110168826A (en) * | 2017-01-05 | 2019-08-23 | 大原电机株式会社 | Operation in section is carried out using the electric wire in insulation hot line cord holder and bypass cross-over connection electrical cables separate electric pole span and under dead wire state does not power off distribution method |
| CN110168826B (en) * | 2017-01-05 | 2021-07-09 | 大原电机株式会社 | Uninterruptible power distribution method for performing operation in interval under dead line state |
| CN110611264A (en) * | 2018-06-16 | 2019-12-24 | 南京捷泰电力设备有限公司 | A low-voltage distribution box non-stop operation system |
| CN113514669A (en) * | 2021-03-29 | 2021-10-19 | 杭州西湖电子研究所 | Wiring method for equipment detection of traction substation |
| CN113514669B (en) * | 2021-03-29 | 2024-03-12 | 杭州西湖电子研究所 | Wiring method for traction substation equipment detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101794973A (en) | Live working method for replacing distribution transformer | |
| CN204068405U (en) | The earth leakage protective DC power-supply system of a kind of band | |
| CN104242340A (en) | Stable control method in switching process from micro-grid non-planned grid connection operation mode to isolated island operation mode | |
| CN101841136A (en) | Broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof | |
| CN102946108A (en) | Voltage automatic compensation device | |
| CN202949138U (en) | Low-voltage cable branch box | |
| CN104377805A (en) | Communication station low-voltage distribution system | |
| CN201750047U (en) | 24KV box type substation control circuit | |
| CN106941259A (en) | A kind of line segment formula three-phase load unbalance adjustment and boosting loss-reducing and electricity-saving device | |
| CN106655254B (en) | A kind of inverter and transformer integrated equipment | |
| CN201733065U (en) | Low-voltage single-phase power source overvoltage protective device | |
| CN201590680U (en) | Back up power supply for feeder terminal unit FTU | |
| CN201528207U (en) | A dynamic high voltage reactive power automatic compensation device | |
| CN203589830U (en) | Common AC dual-supply-switching lighting distribution box | |
| CN203800383U (en) | Line measurement and control device for low voltage power distribution cabinet | |
| CN204333924U (en) | Comprehensive protection and compensation control box for agricultural machine well motor | |
| CN103580060B (en) | A kind ofly be applicable to the controller of combining inverter and the method for supplying power to of electrical secondary system | |
| CN207542799U (en) | A kind of integrated transformation and distribution system of the low pressure power generation grid-connected distributed energy of high pressure | |
| CN206834760U (en) | A kind of line segment formula three-phase load unbalance adjustment and boosting loss-reducing and electricity-saving device | |
| CN205178274U (en) | Manual reactive power compensator cabinet of power transformer | |
| CN219458661U (en) | Full-amount internet roof distributed photovoltaic power station electricity theft prevention management system | |
| CN103490497B (en) | Duplicate supply two volume step-down secondary voltage regulating rectifier transformer group of different electric pressure | |
| CN205725470U (en) | A kind of Retaining Ring on Generator Rotor sensing heating box type transformer | |
| CN204258326U (en) | A kind of photovoltaic generating system | |
| CN203481846U (en) | Automatic switching device for transformers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100804 |