CN203013614U - Voltage-loss delay tripping apparatus for mining flameproof high-voltage vacuum feed switch - Google Patents
Voltage-loss delay tripping apparatus for mining flameproof high-voltage vacuum feed switch Download PDFInfo
- Publication number
- CN203013614U CN203013614U CN 201320010124 CN201320010124U CN203013614U CN 203013614 U CN203013614 U CN 203013614U CN 201320010124 CN201320010124 CN 201320010124 CN 201320010124 U CN201320010124 U CN 201320010124U CN 203013614 U CN203013614 U CN 203013614U
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- switch
- voltage
- delay tripping
- vacuum feed
- capacitor
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Abstract
The utility model discloses a voltage-loss delay tripping apparatus for a mining flameproof high-voltage vacuum feed switch, comprising a shunt excitation coil (1), a time relay KT1, a capacitor C1, an intermediate relay KA1, a diode V1 and a key switch SA1. The shunt excitation coil (1) is in series with a normally open contact KA1 and a normally closed contact KA1, and then is connected to the two ends of a high-explosive switch (2), and the capacitor C1 is in series with the normally open contact KT1, the diode V1 and the key switch SA1. According to the voltage-loss delay tripping apparatus for a mining flameproof high-voltage vacuum feed switch, the shunt excitation coil is controlled by the time relay KT1 to complete voltage-loss switch operation, the structure is simple, the voltage-loss delay tripping apparatus for a mining flameproof high-voltage vacuum feed switch is convenient and practical, and the instant trip-out problem of the high-explosive switch (2) is effectively solved.
Description
Technical field
The utility model relates to a kind of tripping operation control device, particularly controls the device of trip time.
Background technology
Explosion-proof type high voltage vacuum feeding switch for mine (hereinafter to be referred as high-explosive switch) is widely used at Coal Mine Power Distribution System, and whether its service behaviour reliably is directly connected to the power supply safety of mine, even affects the safety in production of whole mine.But this switch exists the moving tripping operation of dead electricity wink, impact power supply and production safety.
High-explosive switch with no pressure release function be by the decompression coil whether electricly control vacuum circuit-breaker action, namely get when electric when the decompression coil, high-explosive switch can normally close a floodgate; Otherwise when coil losing electricity, coil with spring mechanism reset, promote the high-explosive switch brake separating mechanism and complete separating brake.Instantaneous the completing of separating brake action.So, when the peripheral main power switch of giving mine power supply (general in the power plant or the upper level electric substation of mine 35KV electric substation) moment dead electricity, cause this main power switch tripping operation such as overhead transmission line connects thunder and lightning, the automatic reclosing process is lasted only 0.06 second.Yet within less than the blink of 0.1 second, all high-explosive switchs of down-hole will because of the decompression separating brake, will cause the visual plants such as down-hole portable blower, water pump and therefore stop transport.Again restoring electricity needs the regular hour, and very likely because of the portable blower long generation that causes the gas exceeding limit accident of idle time, this has brought very large potential safety hazard to mine safety production during this period.
Summary of the invention
The technical problems to be solved in the utility model: provide a kind of explosion-proof type high voltage vacuum feeding switch for mine decompression delay tripping device to replace original decompression coil switching-off device, to solve moving trip problem of dead electricity wink.
The technical solution adopted in the utility model: abandon high-explosive switch decompression coil, adopt explosion-proof type high voltage vacuum feeding switch for mine decompression delay tripping device.Device comprises shunt opening coil, time relay KT1, capacitor C 1, auxiliary relay KA1, diode V1 and key switch SA1, shunt opening coil and the two ends that are connected in high-explosive switch after normally opened contact KT1 and normally-closed contact KA1 connect, capacitor C 1 is connected with normally opened contact KA1, diode V1 and key switch SA1.initiation key switch S A1, this installs just up time relay K T1 and controls the shunt opening coil and complete the action of switch decompression, namely when peripheral system cuts off the power supply, this device self capacitor C1 of institute can keep it and work within 3 second time, the switch decompression is traditionally arranged to be 1～2 second operate time, kept away the automatic reclosing time of 0.06 second, if namely peripheral electric power system interruption duration reaches set decompression and does not restore electricity yet operate time, this device just starts and controls the shunt opening coil and complete the action of switching mechanism separating brake, reached the purpose of switch decompression delay tripping.If switch restores electricity in set opening time (greater than 0.06 second), high-explosive switch can separating brake, thereby avoids the moment power failure tripping.
After adopting the utility model, high-explosive switch can not trip because of instantaneous loss of pressure, can guarantee power supply and the production safety of mine.
Description of drawings
Fig. 1 is explosion-proof type high voltage vacuum feeding switch for mine decompression delay tripping device circuit schematic diagram.
Embodiment
As Fig. 1, a kind of explosion-proof type high voltage vacuum feeding switch for mine decompression delay tripping device, the 24V power supply is connected in key switch SA1 action; Auxiliary relay KA1 gets electronic work, normally opened contact KA1 adhesive, and normally-closed contact KA1 disconnects, and capacitor C 1 begins charging.If power supply cuts off the power supply suddenly, auxiliary relay KA1 dead electricity is because the reason of diode V1 can not be given auxiliary relay KA1 power supply during capacitor C 1 discharge.So auxiliary relay KA1 can not produce locking phenomenon.Capacitor C 1 begins discharge, the normally-closed contact KA1 energising of time relay KT1 by auxiliary relay KA1, and the shunt opening coil 2 of the time that time-delay can be set on the time relay KT1 this moment after controlling moves.If the time of 24V power supply incoming call is shorter than the time of time relay KT1, when time relay KT1 has little time to move, auxiliary relay KA1 electric, normally-closed contact KA1 moves, time relay KT1 can not get electric.If the time of 24V power supply incoming call is than the length of time relay KT1, and capacitor C 1 is also in discharge condition at this moment, and time relay KT1 controls 2 actions of shunt opening coil after getting electric time-delay, and time is with it disconnection until the 24V power supply is sent a telegram here, or capacitor C 1 tele-release is complete, and time relay KT1 dead electricity disconnects.
Claims (1)
1. explosion-proof type high voltage vacuum feeding switch for mine decompression delay tripping device, it is characterized in that: comprise shunt opening coil (1), time relay KT1, capacitor C 1, auxiliary relay KA1, diode V1 and key switch SA1, shunt opening coil (1) and the two ends that are connected in high-explosive switch (2) after normally opened contact KT1 and normally-closed contact KA1 connect, capacitor C 1 is connected with normally opened contact KA1, diode V1 and key switch SA1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010124 CN203013614U (en) | 2013-01-09 | 2013-01-09 | Voltage-loss delay tripping apparatus for mining flameproof high-voltage vacuum feed switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320010124 CN203013614U (en) | 2013-01-09 | 2013-01-09 | Voltage-loss delay tripping apparatus for mining flameproof high-voltage vacuum feed switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203013614U true CN203013614U (en) | 2013-06-19 |
Family
ID=48605180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320010124 Expired - Lifetime CN203013614U (en) | 2013-01-09 | 2013-01-09 | Voltage-loss delay tripping apparatus for mining flameproof high-voltage vacuum feed switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203013614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529825A (en) * | 2014-09-30 | 2016-04-27 | 上海颐坤自动化控制设备有限公司 | Mining high-voltage intelligent integrated protection device and working principle thereof |
-
2013
- 2013-01-09 CN CN 201320010124 patent/CN203013614U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529825A (en) * | 2014-09-30 | 2016-04-27 | 上海颐坤自动化控制设备有限公司 | Mining high-voltage intelligent integrated protection device and working principle thereof |
| CN105529825B (en) * | 2014-09-30 | 2019-09-13 | 上海颐坤自动化控制设备有限公司 | A kind of mining high-voltage intelligent comprehensive protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |