CN204946838U - A kind of device for under-voltage releasing equipment protective device - Google Patents
A kind of device for under-voltage releasing equipment protective device Download PDFInfo
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- CN204946838U CN204946838U CN201520645457.8U CN201520645457U CN204946838U CN 204946838 U CN204946838 U CN 204946838U CN 201520645457 U CN201520645457 U CN 201520645457U CN 204946838 U CN204946838 U CN 204946838U
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Abstract
The utility model provides a kind of device for under-voltage releasing equipment protective device, and it comprises relay module, measure loop module, rectifier circuit module, point voltage protection circuit module and device for under-voltage releasing equipment circuit module; Described relay module, measure loop module, rectifier circuit module, device for under-voltage releasing equipment circuit module series and parallel successively, wherein said point of voltage protection circuit module and device for under-voltage releasing equipment circuit module are electrically connected.The beneficial effects of the utility model are: after by this device access power supply, by the value of Reasonable adjustment R3, device for under-voltage releasing equipment coil can be made to work in all the time and to determine voltage less than or equal to release, increase the useful life of device for under-voltage releasing equipment, improve the functional reliability of circuit breaker.
Description
Technical field
The utility model relates to for owing (mistake) pressure technical field of electric equipment that protection is installed in high-low pressure circuit breaker, particularly relates to a kind of device for under-voltage releasing equipment protective device.
Background technology
Deficient no-voltage release is a kind of annex being usually used in circuit breaker and tripping as low-voltage or decompression.Because current domestic voltage ripple of power network is larger, especially in rural power grids, because circuit is longer, control to make terminal voltage, in permission scope range of the fluctuation of voltage, usually to adopt the mode improving feeder ear voltage to solve at feeder ear; Device for under-voltage releasing equipment is as normal live part, and long-play, under overvoltage environment, has had a strong impact on its useful life, affected breaker reliability.
Utility model content
One technical problem that will solve
The purpose of this utility model is the defect in order to solve existing device for under-voltage releasing equipment, provides a kind of device for under-voltage releasing equipment protective device.
Two technical schemes
For solveing the technical problem, the utility model provides a kind of device for under-voltage releasing equipment protective device, and it comprises relay module, measure loop module, rectifier circuit module, point voltage protection circuit module and device for under-voltage releasing equipment circuit module; Described relay module, measure loop module, rectifier circuit module, device for under-voltage releasing equipment circuit module are in parallel successively from the right side from a left side, and wherein said point of voltage protection circuit module and device for under-voltage releasing equipment circuit module are electrically connected.
A kind of device for under-voltage releasing equipment protective device of the present utility model; described relay module comprises relay K; described rectifier circuit module comprises rectifier bridge ZL, and described point of voltage protection circuit module comprises resistor R1 and K switch, and described device for under-voltage releasing equipment circuit module comprises device for under-voltage releasing equipment UQ.
A kind of device for under-voltage releasing equipment protective device of the present utility model, after device for under-voltage releasing equipment coil UQ connects power supply, make device for under-voltage releasing equipment coil UQ charged by relay K contact and resistor R1, device for under-voltage releasing equipment coil UQ adhesive, measure loop is by rectifier bridge ZL, resistor R2, adjustable resistance R3, voltage stabilizing didoe D control relay K, when terminal voltage higher than adjust voltage time relay K adhesive, the relay contact K being incorporated to resistor R1 end disconnects, device for under-voltage releasing equipment coil UQ accesses power supply after resistor R1 dividing potential drop, when supply voltage lower than adjust voltage time, relay K discharges, relay K contact short circuit resistor R1, coil total head accesses.
The beneficial effects of the utility model are: after by this device access power supply, by the value of Reasonable adjustment R3, can make device for under-voltage releasing equipment coil work in all the time less than or equal to release determine voltage, increase useful life of device for under-voltage releasing equipment, improve the functional reliability of circuit breaker.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of a kind of device for under-voltage releasing equipment protective device of the utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, a kind of device for under-voltage releasing equipment protective device, a kind of device for under-voltage releasing equipment protective device, it comprises relay module, measure loop module, rectifier circuit module, point voltage protection circuit module and device for under-voltage releasing equipment circuit module; Described relay module, measure loop module, rectifier circuit module, device for under-voltage releasing equipment circuit module are in parallel successively from the right side from a left side, and wherein said point of voltage protection circuit module and device for under-voltage releasing equipment circuit module are electrically connected.
A kind of device for under-voltage releasing equipment protective device of the present utility model; described relay module comprises relay K; described rectifier circuit module comprises rectifier bridge ZL, and described point of voltage protection circuit module comprises resistor R1 and K switch, and described device for under-voltage releasing equipment circuit module comprises device for under-voltage releasing equipment UQ.
After device for under-voltage releasing equipment coil UQ connects power supply, make device for under-voltage releasing equipment coil UQ charged by relay K contact and resistor R1, device for under-voltage releasing equipment coil UQ adhesive, measure loop is by rectifier bridge ZL, resistor R2, adjustable resistance R3, voltage stabilizing didoe D control relay K, when terminal voltage higher than adjust voltage time relay K adhesive, the relay contact K being incorporated to resistor R1 end disconnects, device for under-voltage releasing equipment coil UQ accesses power supply after resistor R1 dividing potential drop, when supply voltage lower than adjust voltage time, relay K discharges, relay K contact short circuit resistor R1, coil total head accesses.
The beneficial effects of the utility model are: after by this device access power supply, by the value of Reasonable adjustment R3, can make device for under-voltage releasing equipment coil work in all the time less than or equal to release determine voltage, increase useful life of device for under-voltage releasing equipment, improve the functional reliability of circuit breaker.
In sum, above-mentioned execution mode is not restricted execution mode of the present utility model, and the modification that all those skilled in the art carry out on the basis of flesh and blood of the present utility model or equivalent deformation, all at technology category of the present utility model.
Claims (3)
1. a device for under-voltage releasing equipment protective device, it comprises relay module, measure loop module, rectifier circuit module, point voltage protection circuit module and device for under-voltage releasing equipment circuit module; Described relay module, measure loop module, rectifier circuit module, device for under-voltage releasing equipment circuit module series and parallel successively, wherein said point of voltage protection circuit module and device for under-voltage releasing equipment circuit module are electrically connected.
2. device for under-voltage releasing equipment protective device according to claim 1; it is characterized in that: described relay module comprises relay K; described rectifier circuit module comprises rectifier bridge ZL; described point of voltage protection circuit module comprises resistor R1 and K switch, and described device for under-voltage releasing equipment circuit module comprises device for under-voltage releasing equipment UQ.
3. device for under-voltage releasing equipment protective device according to claim 2, it is characterized in that: after device for under-voltage releasing equipment coil UQ connects power supply, make device for under-voltage releasing equipment coil UQ charged by relay K contact and resistor R1, device for under-voltage releasing equipment coil UQ adhesive, measure loop is by rectifier bridge ZL, resistor R2, adjustable resistance R3, voltage stabilizing didoe D control relay K, when terminal voltage higher than adjust voltage time relay K adhesive, the relay contact K being incorporated to resistor R1 end disconnects, device for under-voltage releasing equipment coil UQ accesses power supply after resistor R1 dividing potential drop, when supply voltage lower than adjust voltage time, relay K discharges, relay K contact short circuit resistor R1, coil total head accesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645457.8U CN204946838U (en) | 2015-08-24 | 2015-08-24 | A kind of device for under-voltage releasing equipment protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645457.8U CN204946838U (en) | 2015-08-24 | 2015-08-24 | A kind of device for under-voltage releasing equipment protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204946838U true CN204946838U (en) | 2016-01-06 |
Family
ID=55014240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520645457.8U Active CN204946838U (en) | 2015-08-24 | 2015-08-24 | A kind of device for under-voltage releasing equipment protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204946838U (en) |
-
2015
- 2015-08-24 CN CN201520645457.8U patent/CN204946838U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |