CN104167713A - Automatic brake opening protection device for loss of voltage of high-tension switch board low-voltage power source - Google Patents
Automatic brake opening protection device for loss of voltage of high-tension switch board low-voltage power source Download PDFInfo
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- CN104167713A CN104167713A CN201410413727.2A CN201410413727A CN104167713A CN 104167713 A CN104167713 A CN 104167713A CN 201410413727 A CN201410413727 A CN 201410413727A CN 104167713 A CN104167713 A CN 104167713A
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Abstract
The invention belongs to the technical field of automatic brake-opening protection devices, particularly relates to an automatic brake-opening protection device for loss of voltage of a high-tension switch board low-voltage power source. The device mainly solves the technical problem that due to the fact that a manual brake opening method is adopted for loss of voltage of an existing high-tension switch board low-voltage power source, great production accidents are caused easily. According to the technical scheme, the automatic brake-opening protection device for loss of voltage of the high-tension switch board low-voltage power source comprises a UPS power source, a switch 1DK, a switch 2DK, a line protection device working power source switch DK1, a control circuit power source switch DK2, a far-near control selective switch ZK, a manual brake closing switch KK1, a manual brake-opening switch KK2, a line protection device, a high-pressure locking device, a brake-opening coil TQ and a brake-closing coil HQ; the automatic brake-opening protection device further comprises a low-voltage power source protection relay DSYJ for loss of voltage. The automatic brake-opening protection device has the advantages that automatic brake-opening protection for loss of voltage of the high-tension switch board low-voltage power source is achieved.
Description
Technical field
The invention belongs to automatic brake separating protective device technical field, be specifically related to a kind of high-tension switch cabinet low-tension supply decompression automatic brake separating protective device.
Background technology
The electric switch-on of high-pressure vacuum breaker that current domestic high-tension switch cabinet is used is, the coil of electronic separating brake controls that voltage adopts substantially is that low-tension supply is controlled, after low-tension supply decompression, no matter the separating brake of high-tension switch cabinet is controlled is that local operation or remote operation are all by manual operation separating brake.High-tension switch cabinet occurs after low-tension supply decompression; after high-pressure vacuum breaker does not possess low-tension supply decompression, high pressure automatic brake separating is not protected; if there is no timely manual operation high pressure separating brake; high-voltage power-supply unit continues operation; low-voltage equipment quits work because of dead electricity; high-voltage operation equipment causes extensive damage can to the low pressure plant equipment of interlock, forms great production accident.
Summary of the invention
The object of the invention is to solve existing high-tension switch cabinet low-tension supply decompression and adopt manual operation separating brake method to have the technical problem that easily causes great production accident, a kind of high-tension switch cabinet low-tension supply decompression automatic brake separating protective device is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of high-tension switch cabinet low-tension supply decompression automatic brake separating protective device, comprise ups power, switch 1DK, switch 2DK, line protective devices working power switch DK1, control loop mains switch DK2, far and near control selector switch ZK, closing by hand K switch K1, manual brake separating K switch K2, line protective devices, high pressure locking, switching winding TQ and closing coil HQ, wherein: it also comprises low-tension supply o-volt protection relay DSYJ, the output of 220 volts of AC power of the coil of described low-tension supply o-volt protection relay DSYJ and high-tension switch cabinet low pressure inlet wire is connected, the moving contact of low-tension supply o-volt protection relay DSYJ and the far and near 2. end of controlling selector switch ZK, the 1. end of closing by hand K switch K1 is connected with the 3. end of manual brake separating K switch K2, the fixed contact of low-tension supply o-volt protection relay DSYJ is connected with 93 ends of line protective devices with the 4. end of manual brake separating K switch K2.
Compare with background technology, the present invention has the following advantages:
1) in high-tension switch cabinet, take out low-tension supply, monitor timely and effectively the ruuning situation of low-tension supply.
2) when power supply decompression appears in low pressure, low-voltage protection circuit can be controlled high pressure automatic brake separating timely, has effectively guaranteed running device safe shutdown.
3) not only can control the separating brake of separate unit high-tension switch cabinet, and can control many high-tension switch cabinets high pressure decompression separating brake of paired running simultaneously simultaneously, the components and parts of use are few, failure rate is low, and security performance is high.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
As described in accompanying drawing, a kind of high-tension switch cabinet low-tension supply decompression automatic brake separating protective device in the present embodiment, comprise ups power, switch 1DK, switch 2DK, line protective devices working power switch DK1, control loop mains switch DK2, far and near control selector switch ZK, closing by hand K switch K1, manual brake separating K switch K2, line protective devices (DMR201P), high pressure locking, switching winding TQ and closing coil HQ, wherein: it also comprises low-tension supply o-volt protection relay DSYJ, the output of 220 volts of AC power of the coil of described low-tension supply o-volt protection relay DSYJ and high-tension switch cabinet low pressure inlet wire is connected, the input of described ups power is connected with the coil of low-tension supply o-volt protection relay DSYJ, the 1. end of switch 1DK and 3. end, 1. switch 2DK holds and 3. holds and be connected with the output of ups power, the 2. end of switch 1DK is connected with the 1. end of control loop mains switch DK2 with the 1. end of line protective devices working power switch DK1, the 4. end of switch 1DK is connected with the 3. end of control loop mains switch DK2 with the 3. end of line protective devices working power switch DK1, 2. switch 2DK holds and 4. holds and be connected with the motor of tank circuit, the 2. end of line protective devices working power switch DK1 is connected with 101 ends of line protective devices, the 2. end of control loop mains switch DK2 is connected with the 1. end of far and near control selector switch ZK with 94 ends of line protective devices, the moving contact of low-tension supply o-volt protection relay DSYJ and the far and near 2. end of controlling selector switch ZK, the 1. end of closing by hand K switch K1 is connected with the 3. end of manual brake separating K switch K2, the 2. end of closing by hand K switch K1 is connected with 91 ends of line protective devices, the fixed contact of low-tension supply o-volt protection relay DSYJ is connected with 93 ends of line protective devices with the 4. end of manual brake separating K switch K2, 102 ends of line protective devices are connected with the 4. end of line protective devices working power switch DK1, 4. 95 ends of line protective devices and control loop mains switch DK2 hold, the first end of closing coil HQ is connected with the first end of switching winding TQ, 90 ends of line protective devices are connected with the CZ23 of high pressure locking end, the CZ33 end of high pressure locking is connected with the second end of closing coil HQ, 92 ends of line protective devices are connected with the second end of switching winding TQ, the 4. end of control loop mains switch DK2 is connected with the first end of switching winding TQ with the first end of closing coil HQ.
The course of work of the present invention is: low pressure o-volt protection circuit is taken from low-tension supply AC220V power supply in high-voltage board, meets low-tension supply o-volt protection relay DSYJ; When low tension loop, power when normal, low pressure o-volt protection power supply AC220V voltage is normal, DSYJ adhesive, and the normally closed point of its auxiliary contact disconnects, and high pressure sub-gate circuit must not electricity, and high tension loop, low tension loop normally move; When low tension loop occurs after decompression power-off, low-tension supply AC220V dead electricity, ups power inversion output AC220V controls power supply, and AC220V is to operation circuit in 1DK output, and AC220V is to tank circuit equipment in 2DK output; Low-tension supply o-volt protection relay DSYJ discharges, and its auxiliary contact is normally closed closed, connects high-voltage trip loop, and high pressure switching winding obtains electric tripping, high-pressure vacuum breaker cutoff high major loop, and high-tension apparatus and low-voltage equipment stop simultaneously.Realize low-tension supply decompression and controlled the protection of high voltage source automatic brake separating.
Claims (1)
1. a high-tension switch cabinet low-tension supply decompression automatic brake separating protective device, comprise ups power, switch 1DK, switch 2DK, line protective devices working power switch DK1, control loop mains switch DK2, far and near control selector switch ZK, closing by hand K switch K1, manual brake separating K switch K2, line protective devices, high pressure locking, switching winding TQ and closing coil HQ, it is characterized in that: it also comprises low-tension supply o-volt protection relay DSYJ, the output of 220 volts of AC power of the coil of described low-tension supply o-volt protection relay DSYJ and high-tension switch cabinet low pressure inlet wire is connected, the moving contact of low-tension supply o-volt protection relay DSYJ and the far and near 2. end of controlling selector switch ZK, the 1. end of closing by hand K switch K1 is connected with the 3. end of manual brake separating K switch K2, the fixed contact of low-tension supply o-volt protection relay DSYJ is connected with 93 ends of line protective devices with the 4. end of manual brake separating K switch K2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413727.2A CN104167713A (en) | 2014-08-21 | 2014-08-21 | Automatic brake opening protection device for loss of voltage of high-tension switch board low-voltage power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413727.2A CN104167713A (en) | 2014-08-21 | 2014-08-21 | Automatic brake opening protection device for loss of voltage of high-tension switch board low-voltage power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104167713A true CN104167713A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410413727.2A Pending CN104167713A (en) | 2014-08-21 | 2014-08-21 | Automatic brake opening protection device for loss of voltage of high-tension switch board low-voltage power source |
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| CN (1) | CN104167713A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490244A (en) * | 2018-03-30 | 2018-09-04 | 国家电网公司 | High-voltage metering cubicle decompression alarm device of air |
| CN111983444A (en) * | 2020-08-28 | 2020-11-24 | 国网山东省电力公司郯城县供电公司 | Circuit breaker misoperation detection system of comprehensive automatic power distribution system |
| CN112448475A (en) * | 2019-09-02 | 2021-03-05 | 北京国电思达科技有限公司 | Switching-on and switching-off control device of high-voltage circuit breaker for ring main unit and working method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490244A (en) * | 2018-03-30 | 2018-09-04 | 国家电网公司 | High-voltage metering cubicle decompression alarm device of air |
| CN108490244B (en) * | 2018-03-30 | 2024-03-19 | 国家电网公司 | Pressure-loss alarm device for high-pressure metering cabinet |
| CN112448475A (en) * | 2019-09-02 | 2021-03-05 | 北京国电思达科技有限公司 | Switching-on and switching-off control device of high-voltage circuit breaker for ring main unit and working method |
| CN112448475B (en) * | 2019-09-02 | 2022-12-27 | 北京国电思达科技有限公司 | Switching-on and switching-off control device of high-voltage circuit breaker for ring main unit and working method |
| CN111983444A (en) * | 2020-08-28 | 2020-11-24 | 国网山东省电力公司郯城县供电公司 | Circuit breaker misoperation detection system of comprehensive automatic power distribution system |
| CN111983444B (en) * | 2020-08-28 | 2021-06-08 | 国网山东省电力公司郯城县供电公司 | Circuit breaker misoperation detection system of comprehensive automatic power distribution system |
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Application publication date: 20141126 |