CN103680912A - Post processing technology of transformer products - Google Patents

Post processing technology of transformer products Download PDF

Info

Publication number
CN103680912A
CN103680912A CN201310720271.XA CN201310720271A CN103680912A CN 103680912 A CN103680912 A CN 103680912A CN 201310720271 A CN201310720271 A CN 201310720271A CN 103680912 A CN103680912 A CN 103680912A
Authority
CN
China
Prior art keywords
oil
transformer
circulation
vacuum
post processing
Prior art date
Application number
CN201310720271.XA
Other languages
Chinese (zh)
Inventor
陈继浩
王洋
赵贺亮
王彩娟
聂鹏
韩秀龙
Original Assignee
天威保变(秦皇岛)变压器有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 天威保变(秦皇岛)变压器有限公司 filed Critical 天威保变(秦皇岛)变压器有限公司
Priority to CN201310720271.XA priority Critical patent/CN103680912A/en
Publication of CN103680912A publication Critical patent/CN103680912A/en

Links

Abstract

The invention relates to a post processing technology of transformer products, and belongs to the technical field of transformers. According to the technical scheme, a low-voltage winding (1) short-circuits through a low-voltage busing, a minimum tapping rated current is exerted to the head end of a high-voltage winding (2) through a high-voltage bushing, a coil of a transformer generates heat, an oil pump of a cooling device of the transformer is started at the same time, oil temperature of various positions in the whole transformer is uniform, when the coil of the transformer is heated electrically until the oil temperature of the top layer of the transformer reaches 70-75 DEG C, a vacuum oil filter (6) is started to carry out oil circulation, after oil circulates for 20 hours, an oil sample of the transformer is tested, the oil can stop circulating if the oil index meets the requirement, and if the oil index does not meet the requirement, the oil circulates continuously until the oil index meets the requirement. The windings are electrified to generate heat, hot oil circulation is combined, the oil immersion speed of insulation parts is improved, the oil filtering speed is improved, and time of the post processing technology is saved. Compared with the background art, the post processing technology of the transformer products has the advantage that the post processing time of the transformer products is shortened by about 200 hours, namely eight and a half days.

Description

A kind of final treatment techniques of power transformer product

Technical field

The present invention relates to a kind of final treatment techniques of power transformer product, belong to transformer technology field.

Background technology

Large-scale power transformer all can need to carry out post-processed, and the treatment process existing problems of background technology are: the large-scale power transformer final treatment techniques time is longer, and the post-processed cycle is long, and production efficiency is low.

Summary of the invention

The object of the invention provides a kind of final treatment techniques of power transformer product, utilizes winding energising to produce heat, in conjunction with Circulation and Hot Oil Spray, improve insulating part immersion oil speed, promote oil strain speed simultaneously, saved later stage process treatment time, solve the problems referred to above that exist in background technology.

Technical scheme of the present invention is: a kind of final treatment techniques of power transformer product, comprises following processing step: 1. transformer assembling final vacuum is processed, vacuum processing time 48h, 2. vacuum oil, 10 hours time, 3. transformer Circulation and Hot Oil Spray, by low-tension bushing by low pressure short circuit in winding, by bushing, at high pressure winding head end, apply minimum tap rated current, make transformer coil produce heat, simultaneously, open transformer cooling device oil pump, make interior each position oil temperature of whole transformer even, when transformer coil electric heating to transformer top-oil temperature reaches 70-75 ℃, open vacuum oil-filter and carry out oil circulation, circulate after 20 hours, getting transformer oil sample chemically examines, oil index meets the requirements and can stop circulation, as undesirable in oil index, continue circulation, until oil index meets the requirements, 4. transformer is quiet puts, 48 hours time.

Described transformer Circulation and Hot Oil Spray, utilizes winding electric heating, opens transformer cooling device oil pump, does not open fan, and improves temperature of oil in transformer, uses vacuum oil-filter to carry out oily circulating filtration to transformer simultaneously; Control top-oil temperature at 70-75 ℃, by control, apply the size of electric current, regulate oil temperature height.

Good effect of the present invention: utilize winding energising to produce heat, in conjunction with Circulation and Hot Oil Spray, improve insulating part immersion oil speed, promote oil strain speed simultaneously, saved later stage process treatment time; Compare with background technology, power transformer product post-processed time shorten of the present invention approximately 200 hours, closes 8.5 days.

Accompanying drawing explanation

Fig. 1 is embodiment of the present invention Transformer Winding principle of electric-heating figure;

Fig. 2 is embodiment of the present invention transformer electric heating circulation schematic diagram;

In figure: low pressure winding 1, high pressure winding head end 2, high voltage winding group end 3, transformer 4, oil conservator 5, vacuum oil-filter 6.

Embodiment

Below in conjunction with accompanying drawing, by embodiment, the invention will be further described

A final treatment techniques for power transformer product, comprises following processing step: 1. transformer assembling final vacuum is processed, vacuum processing time 48h, 2. vacuum oil, 10 hours time, 3. transformer Circulation and Hot Oil Spray, by low-tension bushing by 1 short circuit of low pressure winding, by bushing, at high pressure winding head end 2, apply minimum tap rated current, make transformer coil produce heat, simultaneously, open transformer cooling device oil pump, make interior each position oil temperature of whole transformer even, when transformer coil electric heating to transformer top-oil temperature reaches 70-75 ℃, open vacuum oil-filter 6 and carry out oil circulation, circulate after 20 hours, getting transformer oil sample chemically examines, oil index meets the requirements and can stop circulation, as undesirable in oil index, continue circulation, until oil index meets the requirements, 4. transformer is quiet puts, 48 hours time.

Described transformer Circulation and Hot Oil Spray, utilizes winding electric heating, opens transformer cooling device oil pump, does not open fan, and improves temperature of oil in transformer, uses vacuum oil-filter to carry out oily circulating filtration to transformer simultaneously; Control top-oil temperature at 70-75 ℃, by control, apply the size of electric current, regulate oil temperature height.

Claims (2)

1. a final treatment techniques for power transformer product, is characterized in that comprising following processing step: 1. transformer assembling final vacuum is processed, vacuum processing time 48h, 2. vacuum oil, 10 hours time, 3. transformer Circulation and Hot Oil Spray, by low-tension bushing by low pressure winding (1) short circuit, by bushing, at high pressure winding head end (2), apply minimum tap rated current, make transformer coil produce heat, simultaneously, open transformer cooling device oil pump, make interior each position oil temperature of whole transformer evenly when transformer coil electric heating to transformer top-oil temperature reaches 70-75 ℃, open vacuum oil-filter (6) and carry out oil circulation, circulate after 20 hours, getting transformer oil sample chemically examines, oil index meets the requirements and can stop circulation, as undesirable in oil index, continue circulation, until oil index meets the requirements, 4. transformer is quiet puts, 48 hours time.
2. the final treatment techniques of a kind of power transformer product according to claim 1, it is characterized in that described transformer Circulation and Hot Oil Spray, utilize winding electric heating, open transformer cooling device oil pump, do not open fan, improve temperature of oil in transformer, use vacuum oil-filter to carry out oily circulating filtration to transformer simultaneously; Control top-oil temperature at 70-75 ℃, by control, apply the size of electric current, regulate oil temperature height.
CN201310720271.XA 2013-12-24 2013-12-24 Post processing technology of transformer products CN103680912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310720271.XA CN103680912A (en) 2013-12-24 2013-12-24 Post processing technology of transformer products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310720271.XA CN103680912A (en) 2013-12-24 2013-12-24 Post processing technology of transformer products

Publications (1)

Publication Number Publication Date
CN103680912A true CN103680912A (en) 2014-03-26

Family

ID=50318179

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310720271.XA CN103680912A (en) 2013-12-24 2013-12-24 Post processing technology of transformer products

Country Status (1)

Country Link
CN (1) CN103680912A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105071260A (en) * 2015-08-14 2015-11-18 中广核工程有限公司 Insulating property processing method for nuclear power station main transformer after overdue of onsite warehousing
CN105225819A (en) * 2015-11-06 2016-01-06 青海智鑫电力监理咨询有限公司 A kind of transformer body heating means and application thereof
CN107293396A (en) * 2017-05-19 2017-10-24 王振宇 A kind of production technology of oil-filled transformer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101901671A (en) * 2009-05-25 2010-12-01 甘肃省电力公司兰州超高压输变电公司 Hot oil-circulating automatic heating device of large-size transformer
CN101908404A (en) * 2010-06-30 2010-12-08 国家电网公司 Method and device for carrying out field drying on convertor transformer
CN202855493U (en) * 2012-09-29 2013-04-03 苏州华电电气股份有限公司 On-site transformer oil treatment self-heating device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101901671A (en) * 2009-05-25 2010-12-01 甘肃省电力公司兰州超高压输变电公司 Hot oil-circulating automatic heating device of large-size transformer
CN101908404A (en) * 2010-06-30 2010-12-08 国家电网公司 Method and device for carrying out field drying on convertor transformer
CN202855493U (en) * 2012-09-29 2013-04-03 苏州华电电气股份有限公司 On-site transformer oil treatment self-heating device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘锐等: "《大型变压器现场加热干燥方法的研究与应用》", 《中国电机工程学报》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105071260A (en) * 2015-08-14 2015-11-18 中广核工程有限公司 Insulating property processing method for nuclear power station main transformer after overdue of onsite warehousing
CN105225819A (en) * 2015-11-06 2016-01-06 青海智鑫电力监理咨询有限公司 A kind of transformer body heating means and application thereof
CN107293396A (en) * 2017-05-19 2017-10-24 王振宇 A kind of production technology of oil-filled transformer
CN107293396B (en) * 2017-05-19 2019-06-18 宁波索拉电气有限公司 A kind of production technology of oil-immersed transformer

Similar Documents

Publication Publication Date Title
CN203931712U (en) High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer
CN204315332U (en) A kind of novel dry-type transformer
CN204087991U (en) Dry-type transformer
CN109256959A (en) Alternating current numerical controlled voltage flow control power transfering device
CN102054570A (en) Double-split dry type voltage booster transformer for photovoltaic power generation
CN104578253A (en) High-frequency triangular transformation technology-based electric vehicle motor driving DC/DC transformation device
CN102965478A (en) Heat treatment method for iron-based amorphous strip
CN103151116B (en) Strand of cable conductor machine and conductor method for annealing
CN105551716A (en) Low noise inductor
CN104935123A (en) Method for transforming and utilizing waste motor
CN201704376U (en) Device for drying coolant in order to prevent bonding wires from getting stuck after being annealed
CN203759189U (en) Ultra-large-capacity high-voltage variable frequency resonant cable voltage withstanding test device
CN103337344B (en) Double-split epoxy resin insulation dry type boosting transformer for wind power and photovoltaic power generation
CN204991396U (en) Dull and stereotyped coil reactor
CN104103413A (en) Method for preparing magnetic powder core with high-flux magnet ring performance
JP2016533144A5 (en)
CN102217875A (en) Anti-electromagnetic field radiation electric blanket
CN103366933A (en) Integrated high-frequency power transformer
CN102355098B (en) High-frequency cast aluminium rotor surface treatment process
CN204024895U (en) A kind of novel cold start device of methanol automobile
CN107451381B (en) Transformer thermal stability calculation method based on magnetic-thermal-current coupling
CN102956350A (en) Integrated high-frequency power transformer
CN203795363U (en) Snow shovel device with heating function
CN106102199B (en) A kind of induction heating equipment and method of leggy multi-coil
CN204102693U (en) Direct current exports oil immersed type rectifier transformer

Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140326

C02 Deemed withdrawal of patent application after publication (patent law 2001)