CN203055810U - Improved power circuit breaker closing loop - Google Patents

Improved power circuit breaker closing loop Download PDF

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Publication number
CN203055810U
CN203055810U CN 201220280779 CN201220280779U CN203055810U CN 203055810 U CN203055810 U CN 203055810U CN 201220280779 CN201220280779 CN 201220280779 CN 201220280779 U CN201220280779 U CN 201220280779U CN 203055810 U CN203055810 U CN 203055810U
Authority
CN
China
Prior art keywords
breaker closing
jump
diode
circuit breaker
breaker
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.)
Expired - Fee Related
Application number
CN 201220280779
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Chinese (zh)
Inventor
王汉平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YUNCHENG POWER SUPPLY Co OF SHANXI ELECTRIC POWER Corp
State Grid Corp of China SGCC
Original Assignee
YUNCHENG POWER SUPPLY Co OF SHANXI ELECTRIC POWER Corp
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 YUNCHENG POWER SUPPLY Co OF SHANXI ELECTRIC POWER Corp filed Critical YUNCHENG POWER SUPPLY Co OF SHANXI ELECTRIC POWER Corp
Priority to CN 201220280779 priority Critical patent/CN203055810U/en
Application granted granted Critical
Publication of CN203055810U publication Critical patent/CN203055810U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Provided is an improved power circuit breaker closing loop, composed of an anti-jump voltage relay normally closed contact (TBJV1), anti-jump current relay normally open contacts (TBJI1,TBJI2), an anti-jump voltage relay coil (TBJV), a quantile indicating lamp (LD), a breaker normally closed auxiliary contact (DL1), a breaker closing coil (HQ), control circuit positive and negative supplies (+KM,-KM), etc. and characterized in that a diode (D) is in series connection between a position (4) and a position (8) of the breaker closing loop; the anode of the diode (D) orientates to the position (4) and the cathode orientates to the position (8); the unilateral conductivity of the diode is utilized to prevent loop current from flowing to the cathode from the anode, thereby avoiding error lighting of the quantile indicating lamp (LD) caused by resist-operation of a breaker operating mechanism in opening.

Description

Improved power circuit breaker closing circuit
Technical field
The utility model relates to the control loop of power high voltage circuit breaker.
Background technology
35kV in the electric power system, 10kV breaker control circuit, after carrying out the separating brake order under the normal condition, divide position indicator light (LD) to go out, it is bright to close an indicator light (HD), if mechanism's tripping during separating brake, because the TBJV coil one termination negative pole of control box inside, provide negative electrode channel by TBJV coil, TBJV and TBJI contact for dividing position indicator light (LD), the result divides an indicator light (LD) by overdue bright, causes erroneous judgement disconnected easily, belongs to design hidden danger.
The utility model content
The purpose of this utility model is to overcome the problems referred to above, and branch position indicator light (LD) that the circuit breaker operation mechanism tripping causes when avoiding because of separating brake is overdue bright.
For achieving the above object, the technical solution adopted in the utility model is: improved power circuit breaker closing circuit, by anti-jump voltage relay normally closed contact (TBJV1), anti-jump current relay normal opened contact one (TBJI1), anti-jump current relay normal opened contact two (TBJI2), anti-jump voltage relay coil (TBJV), divide position indicator light (LD), the normally closed auxiliary contact of circuit breaker (DL1), breaker closing coil (HQ), control loop just, negative supply (+KM,-KM) form, it is characterized in that: in breaker closing circuit positions four (4), series diode (D) between the position eight (8), the positive pole of diode (D) is towards the position four (4), and negative pole is towards the position eight (8).Utilize the unilateral conduction of diode, stop this loop current to flow to negative pole by positive pole, thereby prevent that branch position indicator light (LD) is by overdue bright.
The utility model compared with prior art has the following advantages:
1, can effectively prevent breaker mechanism tripping time-division position indicator light (LD) by overdue bright, prevent that erroneous judgement is disconnected.
2, corrective measure is simple, and cost is low.
Description of drawings
Accompanying drawing 1 is the power circuit breaker control loop before improving.
Accompanying drawing 2 is the power circuit breaker control loop after improving.
The icon explanation:
1~control box; 2~high-voltage board; 3~operating mechanism; 4~position four; 5~position five; 6~position six; 7~position seven; 8~position eight; TBJV1~anti-jump voltage relay normally closed contact; TBJI1~anti-jump current relay normal opened contact one; TBJI2~anti-jump current relay normal opened contact two; TBJI3~anti-jump current relay normal opened contact three; TBJI~anti-jump current relay coil; TBJV~anti-jump voltage relay coil; STJ~hand trip(ping) relay tip; SHJ~closing by hand relay tip; The normally closed auxiliary contact of DL1~circuit breaker; DL2~circuit breaker is often opened auxiliary contact; TQ~circuit breaker trip coil; HQ~breaker closing coil; + KM ,-the positive and negative power supply of KM~control loop; HD~a close indicator light; LD~minute position indicator light; TWJ~tripping position relay; HBJ~combined floodgate latching relay; HWJ~closing position relay; D~diode.
Embodiment
Accompanying drawing 1 is the power circuit breaker control loop before improving, after carrying out the separating brake order under the normal condition, divide position indicator light (LD) to go out, it is bright to close an indicator light (HD), if mechanism's tripping during separating brake, the result divides an indicator light (LD) by overdue bright, this is because the TBJV coil one termination negative pole of control box inside, provide negative electrode channel by TBJV coil, TBJI1, BTJI2 and TBJV1 contact for dividing position indicator light (LD), cause branch position indicator light (LD) overdue bright, cause erroneous judgement disconnected easily like this, belong to design hidden danger.Accompanying drawing 2 is the power circuit breaker control loop after improving, wherein the breaker closing loop is by anti-jump voltage relay normally closed contact (TBJV1), anti-jump current relay normal opened contact one (TBJI1), anti-jump current relay normal opened contact two (TBJI2), anti-jump voltage relay coil (TBJV), divide position indicator light (LD), the normally closed auxiliary contact of circuit breaker (DL1), breaker closing coil (HQ), control loop just, negative supply (+KM,-KM) form, present embodiment is position four (4) in breaker closing circuit operation case (1), series diode (D) between the position five (5), the positive pole of diode (D) is towards the position four (4), and negative pole is towards the position eight (8).Utilize the unilateral conduction of diode, stop this loop current to flow to negative pole by positive pole, thereby prevent that branch position indicator light (LD) is by overdue bright.Diode (D) can also be connected on control box external terminal row and go up between position six (6), the position seven (7), or be connected between the interior position seven (7) of high-voltage board (2), the position eight (8), the positive pole of diode (D) is towards the position four (4), and negative pole eight (8) gets final product towards the position.The model of present embodiment diode (D) adopts 1N5408, reverse withstand voltage 1000V, and withstand current 3A through the reality test, meets power technology and rules requirement.

Claims (1)

1. improved power circuit breaker closing circuit, by anti-jump voltage relay normally closed contact (TBJV1), anti-jump current relay normal opened contact one (TBJI1), anti-jump current relay normal opened contact two (TBJI2), anti-jump voltage relay coil (TBJV), divide position indicator light (LD), the normally closed auxiliary contact of circuit breaker (DL1), breaker closing coil (HQ), control loop just, negative supply (+KM,-KM) form, it is characterized in that: in breaker closing circuit positions four (4), series diode (D) between the position eight (8), the positive pole of diode (D) is towards the position four (4), and negative pole is towards the position eight (8).
CN 201220280779 2012-06-06 2012-06-06 Improved power circuit breaker closing loop Expired - Fee Related CN203055810U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220280779 CN203055810U (en) 2012-06-06 2012-06-06 Improved power circuit breaker closing loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220280779 CN203055810U (en) 2012-06-06 2012-06-06 Improved power circuit breaker closing loop

Publications (1)

Publication Number Publication Date
CN203055810U true CN203055810U (en) 2013-07-10

Family

ID=48738737

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220280779 Expired - Fee Related CN203055810U (en) 2012-06-06 2012-06-06 Improved power circuit breaker closing loop

Country Status (1)

Country Link
CN (1) CN203055810U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105845517A (en) * 2016-05-20 2016-08-10 湖南雁能森源电力设备有限公司 High-voltage circuit breaker anti-tripping loop
CN107290658A (en) * 2017-07-13 2017-10-24 国网浙江省电力公司绍兴供电公司 A kind of Anti-jump Circuit of Breaker method of testing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105845517A (en) * 2016-05-20 2016-08-10 湖南雁能森源电力设备有限公司 High-voltage circuit breaker anti-tripping loop
CN107290658A (en) * 2017-07-13 2017-10-24 国网浙江省电力公司绍兴供电公司 A kind of Anti-jump Circuit of Breaker method of testing
CN107290658B (en) * 2017-07-13 2019-08-13 国网浙江省电力公司绍兴供电公司 A kind of Anti-jump Circuit of Breaker test method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Effective date: 20130802

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20130802

Address after: 044000 No. 3889 Hedong East Street, Shanxi, Yuncheng

Patentee after: Yuncheng Power Supply Company of Shanxi Electric Power Corportaion

Patentee after: State Grid Corporation of China

Address before: 044000 No. 3889 Hedong East Street, Shanxi, Yuncheng

Patentee before: Yuncheng Power Supply Company of Shanxi Electric Power Corportaion

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130710

Termination date: 20180606

CF01 Termination of patent right due to non-payment of annual fee