CN102707206A - Reclosure device for insulation detection - Google Patents
Reclosure device for insulation detection Download PDFInfo
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- CN102707206A CN102707206A CN2012101850589A CN201210185058A CN102707206A CN 102707206 A CN102707206 A CN 102707206A CN 2012101850589 A CN2012101850589 A CN 2012101850589A CN 201210185058 A CN201210185058 A CN 201210185058A CN 102707206 A CN102707206 A CN 102707206A
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- reclosing
- insulation
- insulation detection
- reclosure
- microprocessor
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Abstract
The invention discloses a reclosure device, in particular to a reclosure device for insulation detection. The reclosure device for insulation detection belongs to the technical field of relay protection of power system. The reclosure device for insulation detection is in such a structure that an insulation detection device (2) for detecting the interphase or ground insulation of a primary device is connected with the high voltage primary device detected, an output end of the insulation detection device (2) is connected with an input end of a reclosure microprocessor (5), and an output end of the reclosure microprocessor (5) is connected with circuit breaker (6), a display (3) and a loudspeaker (4). The reclosure device for insulation detection provided by the invention can perform insulation detection on a double-circuit parallel line with a sensing voltage which trips off due to failures, and controls the reclosure to act according to detection result, thereby effectively guaranteeing safe and stable operation of the power system.
Description
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Technical field
The present invention relates to a kind of reclosing device, particularly relate to a kind of insulation and detect reclosing device, it belongs to the relay protection of power system technical field.
Background technology
The cardinal rule of relay protection of power system is at present: the overhead transmission line boundary belt reclosing device of each electric pressure, and cable line is not with reclosing; Bus protection is not with reclosing; Tranformer protection is not with reclosing.
The above-mentioned reclosing device that cooperates with the overhead transmission line protection; Reclosing device for the protection of the power end of single-side power circuit; Behind line failure protection action tripping switch excision trouble spot; Mode with gambling is carried out single shot reclosing, if previous what take place is transient fault insulation recovery then successful reclosing; What before taken place is permanent fault, and the trouble spot insulation does not recover then reclosing failure, and circuit is once more by the protection tripping.For busbar protective device; Just the possibility of permanent fault is arranged owing to worry the bus fault first time; The fault current of just worrying the bus-bar fault generation is big; Coincide with on the trouble spot and can just adopt bus protection not with the protection allocation plan of reclosing primary equipment and system's damaging property impacts such as switches, do so obviously be blindly, unscientific.
At present; There is the following technical matters in all kinds of primary equipment relay protection of known electric system reclosing using priciple: 1) during overhead transmission line generation permanent fault; Blindly carry out single shot reclosing; Bring electric or mechanical damaging impact can for equipment such as switch, if when especially after coinciding with the trouble spot, tripping for the second time switch be unable to bear continuously open, disconnected operation and tripping will expansion accident scopes, stable the bringing of electric system seriously influenced.2) during bus generation transient fault; Originally carried out the simple reclosing of a side just immediately recovery system give; But to pass through operations staff and electric power system dispatching commanding's the scene of checking repeatedly, communication; The time that last each element of bus send electricity often to need several hrs, especially recur very easily expansion accident scope under the physical environment such as power equipment short trouble easily at barber etc., it is stable that system is lost.
Summary of the invention
Technical matters to be solved by this invention provides a kind of insulation and detects reclosing device, and when the electric system primary equipment broke down, the present invention can be according to the fault recovery situation, and the action of control reclosing has effectively guaranteed power system security, stable operation.
In order to solve the problems of the technologies described above, the present invention realizes through following technical proposals:
Insulation detects reclosing device; Its structure is following: be used to detect primary equipment insulation detection device alternate or the insulation against ground situation and be connected with high pressure primary equipment to be detected; The output terminal of insulation detection device is connected with the input end of reclosing microprocessor, and the output terminal of reclosing microprocessor is connected with isolating switch, display and loudspeaker.
The output terminal of above-mentioned reclosing microprocessor also is connected with loudspeaker with display.
Above-mentioned high pressure primary equipment to be detected is transmission line of electricity, bus or transformer.
Above-mentioned reclosing microprocessor is the ARM-LPC4357 chip.
Above-mentioned reclosing microprocessor also can be reclosing device.
Owing to adopt technique scheme, make the present invention have following advantage and effect:
The present invention can be to failover and two after the tripping return the parallel circuit bands and induced voltage detections of insulating, and moves according to testing result control reclosing, has guaranteed power system security, stable operation.
Description of drawings
Fig. 1 is a block diagram of the present invention.
Fig. 2 is the circuit theory diagrams of insulation detection device of the present invention to the static state insulation detection of the overhead transmission line of aircraft carrier line or non-inductive voltage.
Fig. 3 circuit theory diagrams that to be insulation detection device of the present invention detect the dynamic insulation of overhead transmission line that induced voltage is arranged or bus.
Fig. 4 is that insulation detection device of the present invention carries out dynamically or the static circuit theory diagrams that insulate and detect through the principle of series loop dividing potential drop.
Among the figure, 1, high pressure primary equipment to be detected, 2, insulation detection device, 3, display, 4, loudspeaker, 5, the reclosing microprocessor, 6, isolating switch.
Embodiment
Further specify the present invention below in conjunction with embodiment, but protection scope of the present invention is not limit by embodiment.
As shown in Figure 1; The present invention's detection reclosing device that insulate; Its structure is following: be used to detect primary equipment insulation detection device 2 alternate or the insulation against ground situation and be connected with high pressure primary equipment 1 to be detected; The output terminal of insulation detection device 2 is connected with the input end of reclosing microprocessor 5, and the output terminal of reclosing microprocessor 5 is connected with isolating switch 6, display 3 and loudspeaker 4.
Above-mentioned high pressure primary equipment to be detected 1 is transmission line of electricity, bus or transformer.Reclosing microprocessor 5 is the reclosing device that ARM-LPC4357 chip or relay protection manufacturer produce, and reclosing device is existing city pin product.
Insulation detection device 2 is used to detect the alternate or insulation against ground situation of primary equipment; This is a techniques well known; Below; The difference of enumerating three insulation detection devices 2 detects principle, but this can not be used to limit the concrete structure of insulation detection device 2, all can so long as can detect the device of high pressure primary equipment insulation situation.
As shown in Figure 2; Insulation detection device 2 is used for the static state insulation of the overhead transmission line of aircraft carrier line or non-inductive voltage is detected; It mainly be mode through the transformer impedance conversion to the static Insulation test of the overhead transmission line of aircraft carrier line or non-inductive voltage: mainly be to measure to have or not the ground wire of significantly not removing on the bus; Just hang up by the operations staff during temporary interruption, have or not the metallic short circuit phenomenon to exist.When normal condition is the electric capacity no-voltage, as when having improper situation, then can detect voltage.
As shown in Figure 3, insulation detection device detects the dynamic insulation of overhead transmission line that induced voltage is arranged or bus, if its size and state through direct current transient current waveform is clearly distinguished the overhead transmission line that induced voltage is necessarily arranged or the dynamic insulation situation of bus.
As shown in Figure 4; Insulation detection device carries out dynamically through the principle of series loop dividing potential drop or static insulation detects; It mainly is to carry out Insulation test through the principle of series loop dividing potential drop, when three-phase bus or transmission line of electricity over the ground or phase insulation puncture constantly, be added to voltage on bus or the circuit by insulation detection device through the mutual inductor that boosts and all drop to and measure on the electric capacity; Insulation detection device can measure sufficiently high voltage, greater than setting value; If when three-phase bus or transmission line of electricity over the ground or phase insulation when good, the voltage of measuring on the electric capacity is very little, and is lower than setting value.
Whether good, whether decision bus protection or route protection can close a floodgate by above-mentioned three kinds of insulation detection devices if all can measure high pressure primary equipment insulation situation.But this can not be used to limit protection scope of the present invention.CPU among Fig. 2, Fig. 3 and Fig. 4 is the ARM-LPC4357 chip.
Principle of work of the present invention is following:
Insulation detection device 2 detects the insulation situation of high pressure primary equipment 1 to be detected; And testing result exported to reclosing microprocessor 5; Reclosing microprocessor 5 receives the laggard line data analytical calculation of insulation detection device 2 testing results, and control signal is exported to isolating switch 6,6 actions of control isolating switch; Reclosing microprocessor 5 is also exported to display 3 and loudspeaker 4 with technical result simultaneously, is used to the operation personnel operational order is provided.
The present invention judges by the circuit of failover disconnection or the insulation recovery situation of bus according to the testing result of insulation detection device, or judges that one is not sent the nonloaded line of electricity or the insulation situation of bus; Whether determine whether send close a floodgate order or circuit then can hand closes and send.
The present invention combines reclosing device and insulation monitoring and warning device, has processed a new equipment that adapts to the intelligent grid requirement, and this is the intention protection that the present invention stresses, the present invention has effectively guaranteed power system security, stable operation.
Claims (5)
1. insulation detects reclosing device; It is characterized in that structure is following: be used to detect primary equipment insulation detection device (2) alternate or the insulation against ground situation and be connected with high pressure primary equipment to be detected (1); The output terminal of insulation detection device (2) is connected with the input end of reclosing microprocessor (5), and the output terminal of reclosing microprocessor (5) is connected with isolating switch (6).
2. insulation according to claim 1 detects reclosing device, it is characterized in that the output terminal of described reclosing microprocessor (5) also is connected with loudspeaker (4) with display (3).
3. insulation according to claim 1 detects reclosing device, it is characterized in that described high pressure primary equipment to be detected (1) is transmission line of electricity, bus or transformer.
4. insulation according to claim 1 detects reclosing device, it is characterized in that described reclosing microprocessor (5) is the ARM-LPC4357 chip.
5. insulation according to claim 1 detects reclosing device, it is characterized in that described reclosing microprocessor (5) is a reclosing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185058.9A CN102707206B (en) | 2012-06-07 | 2012-06-07 | Reclosure device for insulation detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210185058.9A CN102707206B (en) | 2012-06-07 | 2012-06-07 | Reclosure device for insulation detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102707206A true CN102707206A (en) | 2012-10-03 |
| CN102707206B CN102707206B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210185058.9A Active CN102707206B (en) | 2012-06-07 | 2012-06-07 | Reclosure device for insulation detection |
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| Country | Link |
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| CN (1) | CN102707206B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954887A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Power line insulation monitoring method based on instant fault |
| CN104459466A (en) * | 2014-12-02 | 2015-03-25 | 国网河南偃师市供电公司 | Device for judging station of automatic reclosing lock of power transmission and distribution station |
| CN105116716A (en) * | 2015-10-10 | 2015-12-02 | 国网浙江临海市供电公司 | Reclosing control system |
Citations (5)
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|---|---|---|---|---|
| CN1082261A (en) * | 1993-05-31 | 1994-02-16 | 李养善 | Make the single-pole reclosing of criterion with non-full phase voltage |
| CN101261304A (en) * | 2008-04-25 | 2008-09-10 | 山东大学 | Low current grounding system distribution circuit single-phase earth fault automatic position setting method |
| CN101478150A (en) * | 2009-01-20 | 2009-07-08 | 李景禄 | Intelligent diagnosis method and apparatus for power transmission and distribution line state |
| US20100097070A1 (en) * | 2008-10-22 | 2010-04-22 | Crick Robert G | Method for performing a shield integrity test and for isolating trouble in the shield using graphical analysis |
| CN202870238U (en) * | 2012-06-07 | 2013-04-10 | 辽宁省电力有限公司沈阳供电公司 | Reclosing device with insulation detection function |
-
2012
- 2012-06-07 CN CN201210185058.9A patent/CN102707206B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082261A (en) * | 1993-05-31 | 1994-02-16 | 李养善 | Make the single-pole reclosing of criterion with non-full phase voltage |
| CN101261304A (en) * | 2008-04-25 | 2008-09-10 | 山东大学 | Low current grounding system distribution circuit single-phase earth fault automatic position setting method |
| US20100097070A1 (en) * | 2008-10-22 | 2010-04-22 | Crick Robert G | Method for performing a shield integrity test and for isolating trouble in the shield using graphical analysis |
| CN101478150A (en) * | 2009-01-20 | 2009-07-08 | 李景禄 | Intelligent diagnosis method and apparatus for power transmission and distribution line state |
| CN101478150B (en) * | 2009-01-20 | 2012-04-25 | 李景禄 | Intelligent diagnosis method and apparatus for power transmission and distribution line state |
| CN202870238U (en) * | 2012-06-07 | 2013-04-10 | 辽宁省电力有限公司沈阳供电公司 | Reclosing device with insulation detection function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954887A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Power line insulation monitoring method based on instant fault |
| CN104459466A (en) * | 2014-12-02 | 2015-03-25 | 国网河南偃师市供电公司 | Device for judging station of automatic reclosing lock of power transmission and distribution station |
| CN105116716A (en) * | 2015-10-10 | 2015-12-02 | 国网浙江临海市供电公司 | Reclosing control system |
Also Published As
| Publication number | Publication date |
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| CN102707206B (en) | 2015-06-10 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121009 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121009 Address after: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Applicant after: Liaoning Shenyang Electric Power Supply Co., Ltd. Applicant after: State Grid Corporation of China Address before: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Applicant before: Liaoning Shenyang Electric Power Supply Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tao Yongmao Inventor after: Fu Yun Inventor after: Xia Yujue Inventor after: Li Anping Inventor after: Xia Rongzhen Inventor after: Wang Yan Inventor before: Tao Yongmao Inventor before: Li Anping Inventor before: Xia Rongzhen Inventor before: Wang Yan |
|
| COR | Change of bibliographic data | ||
| CP03 | Change of name, title or address |
Address after: 110003 Shenyang, Heping District, Liaoning, No. eight via street, No. 94 Patentee after: Shenyang Power Supply Company of State Grid Liaoning Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Patentee before: Liaoning Shenyang Electric Power Supply Co., Ltd. Patentee before: State Grid Corporation of China |