CN102487190B - High-voltage side protection device of transformer - Google Patents
High-voltage side protection device of transformer Download PDFInfo
- Publication number
- CN102487190B CN102487190B CN201010571710.1A CN201010571710A CN102487190B CN 102487190 B CN102487190 B CN 102487190B CN 201010571710 A CN201010571710 A CN 201010571710A CN 102487190 B CN102487190 B CN 102487190B
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- transformator
- transformer
- time delay
- circuit breaker
- minutes
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Abstract
The invention discloses a kind of high-voltage side protection device of transformer, including being arranged on high-voltage mutual inductor and the vacuum circuit breaker of high voltage side of transformer, described control box is arranged on step down side, and described control system is Single-chip Controlling.Owing to the present invention arranges high-voltage mutual inductor and vacuum circuit breaker at high voltage side of transformer; vacuum circuit breaker setting current is adjusted to three times of controlled transformator rated current; the instantaneous tripping when transformator serious overload; after delay tripping starts; if load reduction; at this moment another relay adhesive; release delay cut-off and prevent mistrip; as can be seen here, utilize the present invention, energy power themselves down in the case of transformer overload; effectively protect transformator; simultaneous with time delay reclosing control system, it is greatly improved the reliability of power supply, and safety and stability.
Description
Technical field
The invention belongs to transformator maintenance technology field, be specifically related to a kind of high-voltage side protection device of transformer.
Background technology
Transformator is the device changing alternating voltage, is electric energy transmission or the critical elements as signal transmission,
Have alternating voltage conversion, circuit Rhizoma Nelumbinis close, impedance transformation and circuit isolation function, be in power system not
The important component part that can lack, once breaks down, and will affect normal power supply, cause inconvenience.
It is the properly functioning important guarantee of transformator that high voltage side of transformer carries out necessary protection, and at present, transformator is high
Pressure side protected mode is usually vacuum circuit breaker-Microcomputer Protection (or electromagnetic relay protection), or uses load
The ring main unit of switch-fuse combination.Though the former have can disengagement failure short circuit current, not by transformer capacity
Restriction and protection the superior and the subordinate coordinate more flexible, trip time and definite value such as can be adjusted at the advantage, but price is relatively
Height, in the latter on-load switch cut-off transfer current value sometimes can only disjunction load current, but can not disengagement failure
Electric current, the most also easily causes the biggest potential safety hazard.
Summary of the invention
It is an object of the invention to avoid above-mentioned weak point of the prior art, and provide a kind of safety and stability,
Ensure the high-voltage side protection device of transformer of power supply reliability, effectively protection transformator.
A kind of high-voltage side protection device of transformer, including being arranged on the high-voltage mutual inductor of high voltage side of transformer with true
Empty chopper, described control box is arranged on step down side, and the control system of described control box is single-chip microcomputer
Controlling, described transformator arranges time delay power transmission device and alarm.
Owing to the present invention arranges high-voltage mutual inductor and vacuum circuit breaker at high voltage side of transformer, by vacuum circuit breaker
Setting current is adjusted to three times of controlled transformator rated current, the instantaneous tripping when transformator serious overload,
After delay tripping starts, if load reduction, at this moment another relay adhesive, release delay cut-off and prevent by mistake
Tripping operation, it can be seen that, utilize the present invention, in the case of transformer overload, energy power themselves down, protects effectively
Transformator, simultaneous with time delay reclosing control system, is greatly improved the reliability of power supply, and safety is steady
Fixed.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1: a kind of high-voltage side protection device of transformer, including the height being arranged on high voltage side of transformer
Pressure transformer 1 and vacuum circuit breaker 2, described control box 3 is arranged on step down side, described control box 3
Control system be Single-chip Controlling.
Described transformator arranges time delay power transmission device and alarm.
Utilize the present invention, high-voltage mutual inductor 1 and vacuum circuit breaker 2 are set at high voltage side of transformer, vacuum is broken
Road device 2 setting current is adjusted to three times of controlled transformator rated current, the wink when transformator serious overload
Time tripping operation.Transformator is in operation, if the 100% alarm device exceeding its rated current is reported to the police, and time delay
Breaker device starts, and after continuous overload 120 minutes, (time is adjustable) vacuum circuit breaker 2 trips transformator
Power-off, time delay power transmission device starts simultaneously, reclosing after five minutes, and after second time tripping operation, time delay power transmission is prolonged again
Long ten minutes；When transformator overload 160% time, trip delayed startup, breaks at continuously 30 minutes final vacuums of overload
Road device 2 trips, transformator power-off, and time delay power transmission device starts simultaneously, reclosing after five minutes, for the second time
After tripping operation, time delay power transmission extends ten minutes again；When transformator overload 200% time, tripping relay adhesive but do not prolong
Time, vacuum circuit breaker 2 trips, and time delay power transmission device starts simultaneously, reclosing after ten minutes；Jump in time delay
After lock starts, if load reduction, at this moment another relay adhesive, release delay cut-off and prevent mistrip.By
This is visible, utilizes the present invention, and in the case of transformer overload, energy power themselves down, protects transformator effectively,
Simultaneous with time delay reclosing control system, it is greatly improved the reliability of power supply.
Claims (1)
1. a high-voltage side protection device of transformer, including be arranged on high voltage side of transformer high-voltage mutual inductor and
Vacuum circuit breaker, it is characterised in that: control box and be arranged on step down side, the control system of described control box
System is Single-chip Controlling, and described transformator arranges time delay power transmission device, Delayed power failure device and alarm, institute
State transformator to be in operation, if the 100% alarm device exceeding its rated current is reported to the police, and delay cut-off dress
Putting startup, in overload final vacuum circuit breaker trip transformator power-off in 120 minutes continuously, time delay power transmission simultaneously fills
Putting startup, reclosing after five minutes, after second time tripping operation, time delay power transmission extends ten minutes again；When transformator surpasses
When carrying 160%, Delayed power failure device starts, at 30 minutes final vacuum circuit breaker trips of overload, transformator continuously
Power-off, time delay power transmission device starts simultaneously, reclosing after five minutes, and after second time tripping operation, time delay power transmission is prolonged again
Long ten minutes；When transformator overload 200% time, tripping relay adhesive but not time delay, vacuum circuit breaker trips,
Time delay power transmission device starts simultaneously, reclosing after ten minutes；After Delayed power failure device starts, if load fall
Low, at this moment another relay adhesive, release delay cut-off and prevent mistrip.
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 CN102487190A (en) | 2012-06-06 |
| CN102487190B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| 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 |
| 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 |
| 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 |
| 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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2329109Y (en) * | 1998-06-12 | 1999-07-14 | 翁同松 | Intelligent protective switch for transformer |
| 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 |
| 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 |
-
2010
- 2010-12-01 CN CN201010571710.1A patent/CN102487190B/en not_active Expired - Fee Related
Patent Citations (6)
| 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 |
| 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 |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102487190A (en) | 2012-06-06 |
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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 |