CN202949208U - Voltage-loss protector - Google Patents
Voltage-loss protector Download PDFInfo
- Publication number
- CN202949208U CN202949208U CN 201220554863 CN201220554863U CN202949208U CN 202949208 U CN202949208 U CN 202949208U CN 201220554863 CN201220554863 CN 201220554863 CN 201220554863 U CN201220554863 U CN 201220554863U CN 202949208 U CN202949208 U CN 202949208U
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- Prior art keywords
- voltage
- capacitor
- charging
- loss
- opening solenoid
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- Expired - Fee Related
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Abstract
The utility model relates to a voltage-loss protector which comprises a rectifying bridge circuit. An output end contact of the rectifying bridge circuit is connected with two ends of an opening solenoid L1 of a spring manipulation mechanism. The output end of the rectifying bridge circuit is connected with an energy-saving loop composed of a charging resistor and a charging capacitor. A relay contact, the opening solenoid L1 and the capacitor form a discharging opening solenoid. According to the capacitor charging and discharging principle, and electricity stored in the capacitor drives the opening solenoid L1 to break off a high voltage circuit breaker under assistance of a contactor, the resistor, a rectifying bridge and other electronic parts to achieve voltage-loss protection. The voltage-loss protector improves protection working performance of the CT8 I/II type spring manipulation mechanism of a high voltage cabinet. The spring manipulation mechanism can open a bake automatically in high voltage or low voltage power loss, effectively protects personal safety of power transfer and transmission personnel, and prevents the equipment from accidental damage. The voltage-loss protector improves quick production restoring capability of the equipment and reduces waiting time for multiple operations.
Description
Technical field
The utility model belongs to the loss protecting device technical field; relate to a kind of principle of utilizing capacitor charge and discharge; when the control power failure that the control power supply or the high pressure main equipment that adopt AC power as high-voltage board carry; in time send sub-gate signal; realize the switching-off device of circuit breaker, specifically refer to a kind of decompression protector.
Background technology
The height that the CT8 I of using at present/II type spring operating mechanism (or similar) drives breaks middle device; without DC power supply or D. C. power source breakdown the time; the device that does not have the dead electricity automatic brake separating; when low pressure dead electricity or corresponding High-voltage Incoming Cabinet dead electricity, operating high-tension apparatus is disjunction tripping grinder automatically not, when secondary is sent a telegram here; can cause the high-tension apparatus main frame automatically to move; and its subsidiary engine unstart, cause damage of equipment also may cause personal injury because of the equipment accidental activation.
The utility model content
In order to overcome the above-mentioned shortcoming of prior art
,The utility model provide a kind of can be when high pressure dead electricity or low pressure dead electricity driving spring operating mechanism with the primary cut-out disjunction, thereby the protection high-tension apparatus is not subjected to the decompression protector of secondary voltage shock effect.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of decompression protector; comprise rectifier circuit; the switching winding L1 two ends of the output contact of rectifier circuit and spring operating mechanism join; be connected with by charging resistor and charging capacitor at the output of rectifier circuit and form tank circuit, form the discharge sub-gate circuit by relay tip, switching winding L1, electric capacity.
The operating voltage of described switching winding L1 is alternating current 220V.
Described charged electrical has charging capacitor C1, C2, the capacity of charging capacitor C1, C2 〉=56 μ F.
The resistance of described charging resistor is 35k Ω.
Be parallel with circuit by a diode series resistor R2 at the output of rectifier circuit.
The resistance of described resistance R 2 is 220 Europe.
The beneficial effects of the utility model are: by the principle of capacitor charge and discharge, under the electronic components such as contactor, resistance and rectifier bridge auxiliary, the electric weight that is stored on electric capacity drives switching winding L1, the disjunction primary cut-out, can realize the device of o-volt protection, improve high-voltage board CT8 I/II type spring operating mechanism Protection performance, when the high and low pressure dead electricity occurring, spring operating mechanism energy automatic brake separating, effective protection is fallen, power transmission personnel's personal safety and equipment are not subjected to unexpected injury; Improve the ability that equipment resumes production fast, reduced the stand-by period of multiple operation.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Fig. 2 is fundamental diagram of the present utility model.
In figure: 1,2-input contact, 3,4-output contact.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Referring to Fig. 1 and Fig. 2, a kind of decompression protector comprises rectifier circuit, the output contact 3 of rectifier circuit, 4 and the switching winding L1 two ends of spring operating mechanism join, the operating voltage of described switching winding L1 is alternating current 220V; The output of rectifier circuit be parallel with 2 strobe capacitor C 1 and C2, the capacity of capacitor C 1, C2 must be enough large, the electric weight that stores could drive switching winding L1 and realize automatic brake separating, and concrete size should be selected according to switching winding L1, C1, C2 〉=56 μ f; Output at rectifier circuit is in series with charging resistor R1 and relay K 1, and the resistance of resistance R 1 can not be too little, otherwise easily burns out rectifier bridge, but can not be too large, and too conference extends the charging interval of electric capacity.R1 also has Limited Current when the relay fault, the effect of protection switching winding L1, and charging resistor R1 is 35k Ω; R2 is 220 Europe, and R2 and the output that is connected in parallel on after a diode is connected in series at rectifier circuit play the effect that discharges the switching winding energy when relay contact disconnects.This practicality utilizes the principle of capacitor charge and discharge; when the High-voltage Incoming Cabinet dead electricity; realize the switching-off device of stored energy mechanism, can be when high pressure dead electricity or low pressure dead electricity driving spring operating mechanism with the primary cut-out disjunction, thereby the protection high-tension apparatus is not subjected to the secondary voltage shock effect.
Of the present utility modelOperation principle is: alternating current 220V draws the working power from the high-tension switch cabinet stored energy mechanism.During normal operation, relay K 1 gets electric, and normally-closed contact K1 disconnects, and switching winding L1 dead electricity keeps inactive state, after the alternating current 220V rectification, through 1 pair of capacitor C 1 of resistance R, C2 charging; When low pressure or high pressure dead electricity, CT8 I/II type spring operating mechanism operating voltage dead electricity, relay K 1 dead electricity, normally-closed contact K1 resets, and the capacitor C 1, the C2 that are full of energy discharge to switching winding L1 by K1, and L1 gets electronic work, make the spring operating mechanism action, realize separating brake; Contactor K1 is electricly long-time, and the contactor K1 that is in operation can make the stored energy mechanism separating brake when breaking down, and realizes the separating brake protection.
The utility model has improved high-voltage board CT8 I/II type spring operating mechanism Protection performance, when the high and low pressure dead electricity occurring, and spring operating mechanism energy automatic brake separating, effective protection is fallen, power transmission personnel's personal safety and equipment are not subjected to unexpected injury; Improve the ability that equipment resumes production fast, reduced the stand-by period of multiple operation.
Claims (6)
1. decompression protector; comprise rectifier circuit; it is characterized in that: the switching winding L1 two ends of the output contact of rectifier circuit and spring operating mechanism join; be connected with by charging resistor and charging capacitor at the output of rectifier circuit and form tank circuit, form the discharge sub-gate circuit by relay tip, switching winding L1, electric capacity.
2. decompression protector as claimed in claim 1, it is characterized in that: the operating voltage of described switching winding L1 is alternating current 220V.
3. decompression protector as claimed in claim 1, it is characterized in that: described charged electrical has charging capacitor C1, C2, the capacity of charging capacitor C1, C2 〉=56 μ F.
4. decompression protector as claimed in claim 1, it is characterized in that: the resistance of described charging resistor is 35k Ω.
5. decompression protector as claimed in claim 1 is characterized in that: be parallel with circuit by a diode series resistor R2 at the output of rectifier circuit.
6. decompression protector as claimed in claim 5, it is characterized in that: the resistance of described resistance R 2 is 220 Europe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554863 CN202949208U (en) | 2012-10-27 | 2012-10-27 | Voltage-loss protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220554863 CN202949208U (en) | 2012-10-27 | 2012-10-27 | Voltage-loss protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949208U true CN202949208U (en) | 2013-05-22 |
Family
ID=48424888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220554863 Expired - Fee Related CN202949208U (en) | 2012-10-27 | 2012-10-27 | Voltage-loss protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202949208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230964A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | Electric operating mechanism of circuit-breaker external power source power-down protection circuit |
-
2012
- 2012-10-27 CN CN 201220554863 patent/CN202949208U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230964A (en) * | 2016-04-29 | 2017-10-03 | 上海良信电器股份有限公司 | Electric operating mechanism of circuit-breaker external power source power-down protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20161027 |