CN102487190A - High-voltage side protection device of transformer - Google Patents
High-voltage side protection device of transformer Download PDFInfo
- Publication number
- CN102487190A CN102487190A CN2010105717101A CN201010571710A CN102487190A CN 102487190 A CN102487190 A CN 102487190A CN 2010105717101 A CN2010105717101 A CN 2010105717101A CN 201010571710 A CN201010571710 A CN 201010571710A CN 102487190 A CN102487190 A CN 102487190A
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- transformer
- voltage side
- protection device
- vacuum circuit
- side protection
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Abstract
The invention discloses a high-voltage side protection device of a transformer, and the high-voltage side protection device comprises a high-voltage mutual inductor and a vacuum circuit breaker which are arranged on a high-voltage side of the transformer; a control box is arranged on a low-voltage side of the transformer; and a control system adopts a single chip microcomputer control manner. According to the high-voltage side protection device, since the high-voltage mutual inductor and the vacuum circuit breaker are arranged on the high-voltage side of the transformer, a setting current of the vacuum circuit breaker is adjusted to be three times the rated current of the controlled transformer; the vacuum circuit breaker is instantaneously tripped when the transformer is seriously overloaded; and if the load is reduced after the start of the tripping is delayed, another relay is closed and the delay of interruption of a power supply is removed to prevent error tripping. Therefore, by utilizing the high-voltage side protection device, the power supply can be automatically interrupted under the circumstance that the transformer is overloaded, so the transformer is effectively protected; and meanwhile, the high-voltage side protection device is provided with a delayed reclosing control system, so the power supply reliability is greatly improved, and the safety and the reliability are realized.
Description
Technical field
The invention belongs to transformer maintenance technology field, be specifically related to a kind of transformer high-voltage side protective device.
Background technology
Transformer is the device that changes alternating voltage; It is electrical energy transfer or as the critical elements of signal transmission; The function of have that AC voltage conversion, circuit lotus root are closed, impedance conversion and circuit being isolated is an indispensable important component part in the electric power system, in case break down; Will influence normal power supply, cause inconvenience.The transformer high-voltage side is carried out the important assurance that necessary protection is the normal operation of transformer, and at present, transformer high-voltage side protected mode is generally vacuum circuit-breaker-Microcomputer Protection (or electromagnetic relay protection), or adopts the ring main unit of on-load switch-fuse combination.Though but the former has the disengagement failure short circuit current, does not receive the restriction of transformer capacity and protection the superior and the subordinate to cooperate comparatively flexible; Trip time and definite value advantage such as can adjust; But price is higher; Among the latter on-load switch cut-off the transfer current value sometimes can only the disjunction load current, but can not the disengagement failure electric current, so also cause very big potential safety hazard easily.
Summary of the invention
The objective of the invention is to avoid above-mentioned weak point of the prior art, and a kind of safety and stability is provided, guarantees power supply reliability, effectively protects the transformer high-voltage side protective device of transformer.
A kind of transformer high-voltage side protective device; Comprise the high-voltage mutual inductor and the vacuum circuit-breaker that are arranged on the transformer high-voltage side; Said control box is arranged on step down side, and the control system of said control box is a Single-chip Controlling, and said transformer is provided with time-delay power transmission device and alarm.
Because the present invention is provided with high-voltage mutual inductor and vacuum circuit-breaker in the transformer high-voltage side, the vacuum circuit-breaker setting current is adjusted into three times of institute's control transformer rated current, instantaneous tripping operation when the serious overload of transformer; After delay tripping starts, if load reduces another relay adhesive at this moment; Remove delay cut-off and prevent mistrip, this shows, utilize the present invention; Under the transformer overload situation, can cut off the power supply voluntarily, protect transformer effectively, have time-delay reclosing control system simultaneously; Improve the reliability of power supply greatly, and safety and stability.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1: a kind of transformer high-voltage side protective device, comprise the high-voltage mutual inductor 1 and vacuum circuit-breaker 2 that are arranged on the transformer high-voltage side, said control box 3 is arranged on step down side, and the control system of said control box 3 is a Single-chip Controlling.
Said transformer is provided with time-delay power transmission device and alarm.
Utilize the present invention, high-voltage mutual inductor 1 and vacuum circuit-breaker 2 are set, vacuum circuit-breaker 2 setting currents are adjusted into three times of institute's control transformer rated current, instantaneous tripping operation when the serious overload of transformer in the transformer high-voltage side.Transformer is in operation; If surpass 100% o'clock alarm equipment alarm of its rated current; And the delay cut-off device starts, and in overload (time is adjustable) vacuum circuit-breaker 2 tripping operation transformer outages after 120 minutes continuously, the power transmission device of delaying time simultaneously starts; Reclosing after five minutes, tripping operation back time-delay for the second time send electricity to prolong ten minutes again; When transformer overloads 160% the time, the tripping operation delayed startup, in overload final vacuum circuit breaker 2 tripping operations in 30 minutes continuously, the transformer outage, the power transmission device of delaying time simultaneously starts, reclosing after five minutes, tripping operation back time-delay for the second time send electricity to prolong ten minutes again; When transformer overloads 200% the time, tripping relay adhesive but do not delay time, vacuum circuit-breaker 2 tripping operations, the power transmission device of delaying time simultaneously starts, reclosing after ten minutes; After delay tripping started, if load reduces, another relay adhesive was at this moment removed delay cut-off and is prevented mistrip.This shows, utilize the present invention, under the transformer overload situation, can cut off the power supply voluntarily, protect transformer effectively, have time-delay reclosing control system simultaneously, improve the reliability of power supply greatly.
Claims (2)
1. a transformer high-voltage side protective device comprises the high-voltage mutual inductor and the vacuum circuit-breaker that are arranged on the transformer high-voltage side, and it is characterized in that: said control box is arranged on step down side, and the control system of said control box is a Single-chip Controlling;
2. transformer high-voltage side protective device as claimed in claim 1 is characterized in that: said transformer is provided with time-delay power transmission device and alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010571710.1A CN102487190B (en) | 2010-12-01 | 2010-12-01 | High-voltage side protection device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010571710.1A CN102487190B (en) | 2010-12-01 | 2010-12-01 | High-voltage side protection device of transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102487190A true CN102487190A (en) | 2012-06-06 |
| CN102487190B CN102487190B (en) | 2016-08-17 |
Family
ID=46152654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010571710.1A Expired - Fee Related CN102487190B (en) | 2010-12-01 | 2010-12-01 | High-voltage side protection device of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102487190B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389369A (en) * | 2022-03-23 | 2022-04-22 | 广东承能电力安装有限公司 | Intelligent monitoring system and method for electric room load |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202987Y (en) * | 1994-05-31 | 1995-07-05 | 沈阳科达有限公司 | Mineral explosion-insulating high-voltage vacuum switch |
| CN1124874A (en) * | 1995-07-31 | 1996-06-19 | 北京顺城电子技术公司 | Integrated protector for program-controlled high-voltage switch |
| CN2329109Y (en) * | 1998-06-12 | 1999-07-14 | 翁同松 | Intelligent protective switch for transformer |
| CN2523089Y (en) * | 2001-09-26 | 2002-11-27 | 大同煤矿集团有限责任公司技术中心 | Protection device from low-voltage feedback to high-voltage execution for movable converting station |
| CN2554852Y (en) * | 2002-02-26 | 2003-06-04 | 昆明华奥电器设备有限责任公司 | Pole protection switch for low-voltage electric power distribution line |
| CN201222650Y (en) * | 2008-06-20 | 2009-04-15 | 石家庄博发科技有限公司 | Apparatus for monitoring and protecting power distribution of transformer house |
| CN201540676U (en) * | 2008-12-11 | 2010-08-04 | 浙江天煌科技实业有限公司 | Factory power supply integrated automatic training device |
| CN201584672U (en) * | 2009-12-08 | 2010-09-15 | 河南省电力公司南阳供电公司 | Novel power distribution and transformation device |
| CN201928003U (en) * | 2010-12-01 | 2011-08-10 | 河南省电力公司南阳供电公司 | Protective device for transformer high voltage side |
-
2010
- 2010-12-01 CN CN201010571710.1A patent/CN102487190B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202987Y (en) * | 1994-05-31 | 1995-07-05 | 沈阳科达有限公司 | Mineral explosion-insulating high-voltage vacuum switch |
| CN1124874A (en) * | 1995-07-31 | 1996-06-19 | 北京顺城电子技术公司 | Integrated protector for program-controlled high-voltage switch |
| CN2329109Y (en) * | 1998-06-12 | 1999-07-14 | 翁同松 | Intelligent protective switch for transformer |
| CN2523089Y (en) * | 2001-09-26 | 2002-11-27 | 大同煤矿集团有限责任公司技术中心 | Protection device from low-voltage feedback to high-voltage execution for movable converting station |
| CN2554852Y (en) * | 2002-02-26 | 2003-06-04 | 昆明华奥电器设备有限责任公司 | Pole protection switch for low-voltage electric power distribution line |
| CN201222650Y (en) * | 2008-06-20 | 2009-04-15 | 石家庄博发科技有限公司 | Apparatus for monitoring and protecting power distribution of transformer house |
| CN201540676U (en) * | 2008-12-11 | 2010-08-04 | 浙江天煌科技实业有限公司 | Factory power supply integrated automatic training device |
| CN201584672U (en) * | 2009-12-08 | 2010-09-15 | 河南省电力公司南阳供电公司 | Novel power distribution and transformation device |
| CN201928003U (en) * | 2010-12-01 | 2011-08-10 | 河南省电力公司南阳供电公司 | Protective device for transformer high voltage side |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389369A (en) * | 2022-03-23 | 2022-04-22 | 广东承能电力安装有限公司 | Intelligent monitoring system and method for electric room load |
| CN114389369B (en) * | 2022-03-23 | 2022-07-05 | 广东承能电力安装有限公司 | Intelligent monitoring system and method for electric room load |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102487190B (en) | 2016-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 473000 Henan City, Nanyang province people's North Road, No. 268 Applicant after: Nanyang Power Supply Company, State Grid Henan Electric Power Company Address before: 473000 Henan City, Nanyang province people's North Road, No. 268 Applicant before: Henan Electric Power Company Nanyang Power Supply Branch |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20161201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |