CN201868270U - Electric control disconnector operating mechanism latching circuit - Google Patents
Electric control disconnector operating mechanism latching circuit Download PDFInfo
- Publication number
- CN201868270U CN201868270U CN201020605967XU CN201020605967U CN201868270U CN 201868270 U CN201868270 U CN 201868270U CN 201020605967X U CN201020605967X U CN 201020605967XU CN 201020605967 U CN201020605967 U CN 201020605967U CN 201868270 U CN201868270 U CN 201868270U
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- Prior art keywords
- disconnecting link
- female
- isolator
- motor
- operating mechanism
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Abstract
Disclosed is an electric control disconnector operating mechanism latching circuit. An electric disconnector operating mechanism comprises a female isolator, a circuit breaker, a first isolator, a female isolator motor and a first isolator motor, wherein the female isolator motor is connected with the female isolator, a first isolator motor shaft is connected with the first isolator, an auxiliary normally closed contact of the circuit breaker is connected to a power loop of the female isolator motor and the first isolator motor, an auxiliary normally closed contact of the first isolator is connected in series to a tripping loop of the female isolator, and an auxiliary normally open contact of the female isolator is connected in series to a closing loop of the first isolator. The electric control disconnector operating mechanism latching circuit ensures that a power source of motor in the disconnector operating mechanism can be switched on and the disconnector can be switched on or off electrically only when the circuit breaker is broken, the power source of the motor in the disconnector operating mechanism is switched off and the disconnector cannot be switched on or off electrically when the circuit breaker is closed, and thereby severe electric misoperation accidents such as sequence errors in switching on or off the isolator on load can be prevented.
Description
Technical field
The utility model relates to power disconnecting switch, and particularly automatically controlled isolator operating mechanism specifically is a kind of automatically controlled isolator operating mechanism exclusive circuit.
Background technology
Most of 110kV and above high voltage isolator are equipped with motor-operating mechanism in each transformer station of electric company, automatically controlled isolator operating mechanism power supply is introduced by fast switch-dividing in the terminal box of transformer station or mechanism case, any electric anti-misoperation locking loop is not passed through in the introducing of this power supply, is not subjected to the constraint and the restriction of any anti-misoperation locking measure.The input of automatically controlled isolator operating mechanism power supply and withdraw from before and after each operation and artificially control with fast switch-dividing by operating personnel.Like this, just exist the danger and the hidden danger of on-load drawing isolating switch and drawing isolating switch sequence error, after also the existence operation was finished, operating personnel forgot the danger of opening operation mechanism motor power.This moves to substation safety, danger that brings and hidden danger.
Summary of the invention
The purpose of this utility model is to provide a kind of automatically controlled isolator operating mechanism exclusive circuit; described this automatically controlled isolator operating mechanism exclusive circuit will solve that automatically controlled separating do not have the latch-up protection measure in the prior art in the electric power loop that closes operating mechanism, brings the technical problem of potential safety hazard for the operation of transformer station.
The purpose of this utility model is achieved through the following technical solutions: comprise female disconnecting link, circuit breaker, first disconnecting link, female disconnecting link motor and first disconnecting link motor in this electric isolating switch operating mechanism, female disconnecting link motor reel is connected with female disconnecting link, first disconnecting link motor reel is connected with the first disconnecting link, the auxiliary normally-closed contact of circuit breaker is connected in the electric power loop of female disconnecting link motor and first disconnecting link motor, the normally closed auxiliary contact series connection of first disconnecting link inserts in the sub-gate circuit of female disconnecting link, and the auxiliary contact series connection of often opening of female disconnecting link inserts in the closing circuit of first disconnecting link.
In the electric power loop of first disconnecting link motor, with the auxiliary normally-closed contact of circuit breaker and be connected with the unlocking switch, with often the opening auxiliary contact and be connected with the unlocking switch of female disconnecting link.
In the electric power loop of female disconnecting link motor, with the auxiliary normally-closed contact of circuit breaker and be connected with the unlocking switch, with the normally closed auxiliary contact of first disconnecting link and be connected with the unlocking switch.
The utility model is compared with prior art, and its effect is actively with tangible.The utility model is connected to the auxiliary normally-closed contact of circuit breaker in the electric power loop of female disconnecting link motor and first disconnecting link motor in automatically controlled isolator operating mechanism exclusive circuit, can guarantee so only to be under the situation of disconnection at circuit breaker, the power supply of motor just is switched in the isolator operating mechanism, can electronicly draw, close isolating switch; And under circuit breaker was in "on" position, the power supply of motor was cut off in the isolator operating mechanism, can't electronicly draw, close isolating switch, can prevent the generation of the pernicious electric fault-operation accident of the on-load drawing disconnecting link or the sequence error of operating a switch; Normally closed auxiliary contact series connection with the first disconnecting link simultaneously inserts in the sub-gate circuit of female disconnecting link, the auxiliary contact series connection of often opening of female disconnecting link inserts in the closing circuit of first disconnecting link, reach and when electric operating, draw, close the correct purpose of isolating switch order, promptly close the order that female disconnecting link closes the first disconnecting link more earlier, and be to draw the first disconnecting link to draw female disconnecting link more earlier when drawing back.Switch in parallel in the first disconnecting link of isolator operating mechanism electric power loop and female disconnecting link sub-gate circuit and closing circuit, with unlocking, to make things convenient for maintenance, debugging, accident treatment, work finishes, and the switch of unlocking must be drawn back, and locking is recovered.
Description of drawings
Fig. 1 is the structural representation of automatically controlled isolator operating mechanism exclusive circuit of the present utility model.
Embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, the automatically controlled isolator operating mechanism exclusive circuit of the utility model, comprise female disconnecting link 1 in this electric isolating switch operating mechanism, circuit breaker 2, first disconnecting link 3, female disconnecting link motor 4 and first disconnecting link motor 5,4 on female disconnecting link motor is connected with female disconnecting link 1,5 on first disconnecting link motor is connected with first disconnecting link 3, in female disconnecting link motor 4 electric power loops, be provided with opening button 41 and switch knob 42, in first disconnecting link motor 5 electric power loops, be provided with opening button 51 and switch knob 52, the auxiliary normally-closed contact 21 of circuit breaker is connected in the electric power loop of female disconnecting link motor 4 and first disconnecting link motor 5, normally closed auxiliary contact 31 series connection of first disconnecting link insert in the sub-gate circuit of female disconnecting link 1, and auxiliary contact 11 series connection of often opening of female disconnecting link insert in the closing circuit of first disconnecting link 3.In the electric power loop of first disconnecting link motor 5, with the auxiliary normally-closed contact 21 of circuit breaker and be connected with unlocking switch 6, with often the opening auxiliary contact 11 and be connected with unlocking switch 6 of female disconnecting link.In the electric power loop of female disconnecting link motor 4, with the auxiliary normally-closed contact 21 of circuit breaker and be connected with unlocking switch 6, with the normally closed auxiliary contact 31 of first disconnecting link and be connected with unlocking switch 6.
Can guarantee so only to be under the situation of disconnection at circuit breaker, the power supply of motor just is switched in the isolator operating mechanism, can electronicly draw, close isolating switch; And under circuit breaker was in "on" position, the power supply of motor was cut off in the isolator operating mechanism, can't electronicly draw, close isolating switch.The normally closed auxiliary contact series connection of first disconnecting link is inserted in the sub-gate circuit of female disconnecting link, the auxiliary contact series connection of often opening of female disconnecting link inserts in the closing circuit of first disconnecting link, reach and when electric operating, draw, close the correct purpose of isolating switch order, promptly close the order that female disconnecting link closes the first disconnecting link more earlier, and draw the first disconnecting link to draw female disconnecting link more earlier when drawing back.Switch in parallel in the first disconnecting link of isolator operating mechanism electric power loop and female disconnecting link sub-gate circuit and closing circuit, with unlocking, to make things convenient for maintenance, debugging, accident treatment, work finishes, and the switch of unlocking must be drawn back, and locking is recovered.
Claims (3)
1. automatically controlled isolator operating mechanism exclusive circuit, comprise female disconnecting link in this electric isolating switch operating mechanism, circuit breaker, the first disconnecting link, female disconnecting link motor and first disconnecting link motor, female disconnecting link motor reel is connected with female disconnecting link, first disconnecting link motor reel is connected with the first disconnecting link, it is characterized in that: the auxiliary normally-closed contact of circuit breaker is connected in the electric power loop of female disconnecting link motor and first disconnecting link motor, the normally closed auxiliary contact series connection of first disconnecting link inserts in the sub-gate circuit of female disconnecting link, and the auxiliary contact series connection of often opening of female disconnecting link inserts in the closing circuit of first disconnecting link.
2. automatically controlled isolator operating mechanism exclusive circuit as claimed in claim 1, it is characterized in that: in the electric power loop of first disconnecting link motor, with the auxiliary normally-closed contact of circuit breaker and be connected with the unlocking switch, with often the opening auxiliary contact and be connected with the unlocking switch of female disconnecting link.
3. automatically controlled isolator operating mechanism exclusive circuit as claimed in claim 1, it is characterized in that: in the electric power loop of female disconnecting link motor, with the auxiliary normally-closed contact of circuit breaker and be connected with the unlocking switch, with the normally closed auxiliary contact of first disconnecting link and be connected with the unlocking switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020605967XU CN201868270U (en) | 2010-11-15 | 2010-11-15 | Electric control disconnector operating mechanism latching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020605967XU CN201868270U (en) | 2010-11-15 | 2010-11-15 | Electric control disconnector operating mechanism latching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201868270U true CN201868270U (en) | 2011-06-15 |
Family
ID=44139419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020605967XU Expired - Fee Related CN201868270U (en) | 2010-11-15 | 2010-11-15 | Electric control disconnector operating mechanism latching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201868270U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412622A (en) * | 2011-12-05 | 2012-04-11 | 珠海市丰兰实业有限公司 | Electric mechanical interlocking type two-incoming-line and one-bus-couple system |
| CN109192569A (en) * | 2018-10-31 | 2019-01-11 | 常州赛尔克瑞特电气有限公司 | A kind of control method being latched between three station grounding switch and breaker open operation |
| CN109904930A (en) * | 2019-03-26 | 2019-06-18 | 石家庄科林电气股份有限公司 | Electric knife gate long-range control method based on line feed terminals |
-
2010
- 2010-11-15 CN CN201020605967XU patent/CN201868270U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412622A (en) * | 2011-12-05 | 2012-04-11 | 珠海市丰兰实业有限公司 | Electric mechanical interlocking type two-incoming-line and one-bus-couple system |
| CN102412622B (en) * | 2011-12-05 | 2013-10-23 | 珠海市丰兰实业有限公司 | Electric mechanical interlocking type two-incoming-line and one-bus-couple system |
| CN109192569A (en) * | 2018-10-31 | 2019-01-11 | 常州赛尔克瑞特电气有限公司 | A kind of control method being latched between three station grounding switch and breaker open operation |
| CN109904930A (en) * | 2019-03-26 | 2019-06-18 | 石家庄科林电气股份有限公司 | Electric knife gate long-range control method based on line feed terminals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20121115 |