CN202474839U - Alternating current emergency tripping power supply - Google Patents
Alternating current emergency tripping power supply Download PDFInfo
- Publication number
- CN202474839U CN202474839U CN2012201051454U CN201220105145U CN202474839U CN 202474839 U CN202474839 U CN 202474839U CN 2012201051454 U CN2012201051454 U CN 2012201051454U CN 201220105145 U CN201220105145 U CN 201220105145U CN 202474839 U CN202474839 U CN 202474839U
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- CN
- China
- Prior art keywords
- power supply
- voltage stabilizing
- storage capacitor
- system power
- ac220v
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to the field of power supply control, in particular to an alternating current (AC) emergency tripping power supply, which comprises an AC 220V system power connection end, a voltage stabilizing diode, an energy storage capacitor, a charging current limiting resistor and an opening loop output end. The AC emergency tripping power supply is characterized in that the AC 220V system power connection end is connected with the voltage stabilizing diode D1 which is connected in series with the charging current limiting resistor R1; the charging current limiting resistor R1 is also connected with the energy storage capacitor C1 to charge the energy storage capacitor C1 through the voltage stabilizing diode D1 and the charging current limiting resistor R1 under the condition that an AC 220V system power supply in a control loop is normal; and the energy storage capacitor C1 is also connected with a voltage stabilizing diode D2 and an under-voltage control relay K1, and discharges through the voltage stabilizing diode D2 and the under-voltage control relay K1 under the condition of sudden power failure of the system power supply to provide opening power for the control loop. The AC emergency tripping power supply has the advantages of capability of accurately controlling tripping action and tripping action time, low cost, good using effect and the like, and is easy to manufacture.
Description
Technical field
The utility model relates to power supply control field, especially a kind of interchange emergency trip power protection.
Background technology
On/off switch control power supply at high-tension switch cabinet AC220V secondary control loop mesohigh vacuum circuit-breaker or (machinery keeps) high-pressure vacuum contactor is AC220V; When the control power supply AC220V of system sudden power; High-pressure vacuum breaker or (machinery keeps) high-pressure vacuum contactor are owing to be that the mechanical self-latching switching winding does not have separating brake power supply AC220V; Therefore switch is still at major loop of "on" position separating brake disconnection in time; Under the situation of sending a telegram here suddenly, do not break off because of a major loop; Therefore the high-tension electricity on the major loop can bring huge mechanical shock to motor and plant equipment, damages motor and plant equipment, also threatens equipment work personnel's personal safety simultaneously.
Summary of the invention
The purpose of the utility model is to solve defectives such as current circuit control field power-off protection is not in place, and a kind of interchange emergency trip power supply is provided, and has protected the safety of plant equipment and motor apparatus also to protect equipment work personnel's personal safety.
The utility model is realized through following technical scheme: a kind of interchange emergency trip power supply; Comprise AC220V system power supply incoming end, voltage stabilizing didoe, storage capacitor, charging current limiter resistance and sub-gate circuit output; It is characterized in that: the AC220V system power supply first incoming end L connects voltage stabilizing didoe D1; Voltage stabilizing didoe D1 and charging current limiter resistance R 1 are in series; Charging current limiter resistance R 1 also is connected with a storage capacitor C1; Storage capacitor C1 connects the AC220V system power supply second incoming end N; Charge through voltage stabilizing didoe D1 and 1 couple of storage capacitor C1 of charging current limiter resistance R under the normal situation of AC220V system power supply to be implemented in the control loop, decompression control relay K1 two ends connect AC220V system power supply first incoming end L and the AC220V system power supply second incoming end N respectively, and storage capacitor C1 connects the auxiliary normally closed contact of voltage stabilizing didoe D2 and decompression control relay K1; Storage capacitor C1 is through the auxiliary normally closed contact discharge of voltage stabilizing didoe D2 and decompression control relay K1, for control loop provides the separating brake power supply under the situation of system power supply sudden power.
After in high-tension switch cabinet AC220V secondary control loop, adding the emergency trip power supply when system control power supply AC220V sudden power; The emergency trip power supply can in time be that the switching winding of high-pressure vacuum breaker or (machinery keeps) high-pressure vacuum contactor provides the separating brake power supply timely disjunction main switch; The situation of unexpected incoming call next time major loop be off-state, both protected the safety of plant equipment and motor apparatus also to protect equipment work personnel's personal safety.
The beneficial effect of the utility model is to make simply, and with low cost, result of use is good, can be applicable to no-voltage trip protection in the AC220V secondary control loop.
Description of drawings
Fig. 1: the utility model electrical block diagram.
Among the figure: L:AC220V system power supply first incoming end, N:AC220V system power supply second incoming end.
Embodiment
Provide the embodiment of the utility model below with reference to accompanying drawing, be used for the formation of the utility model is done further explain.
A kind of interchange emergency trip power supply as shown in Figure 1; Comprise AC220V system power supply incoming end, voltage stabilizing didoe, storage capacitor, charging current limiter resistance and sub-gate circuit output; It is characterized in that: the AC220V system power supply first incoming end L connects voltage stabilizing didoe D1; Voltage stabilizing didoe D1 and charging current limiter resistance R 1 are in series; Charging current limiter resistance R 1 also is connected with a storage capacitor C1; Storage capacitor C1 connects the AC220V system power supply second incoming end N; Charge through voltage stabilizing didoe D1 and 1 couple of storage capacitor C1 of charging current limiter resistance R under the normal situation of AC220V system power supply to be implemented in the control loop, decompression control relay K1 two ends connect AC220V system power supply first incoming end L and the AC220V system power supply second incoming end N respectively, and storage capacitor C1 connects the auxiliary normally closed contact of voltage stabilizing didoe D2 and decompression control relay K1; Storage capacitor C1 is through the auxiliary normally closed contact discharge of voltage stabilizing didoe D2 and decompression control relay K1, for control loop provides the separating brake power supply under the situation of system power supply sudden power.
After in high-tension switch cabinet AC220V secondary control loop, adding the emergency trip power supply when system control power supply AC220V sudden power; The emergency trip power supply can in time be that the switching winding of high-pressure vacuum breaker or (machinery keeps) high-pressure vacuum contactor provides the separating brake power supply timely disjunction main switch; The situation of unexpected incoming call next time major loop be off-state, both protected the safety of plant equipment and motor apparatus also to protect equipment work personnel's personal safety.
Exchanging the emergency trip power supply charges through voltage stabilizing didoe D1 and 1 couple of storage capacitor C1 of charging current limiter resistance R under the normal situation of AC220V system power supply in control loop; Storage capacitor C1 is through the auxiliary normally closed contact discharge of voltage stabilizing didoe D2 and decompression control relay K1, for control loop provides the separating brake power supply under the situation of system power supply sudden power.The beneficial effect of the utility model is to make simply, and with low cost, result of use is good, can be applicable to no-voltage trip protection in the AC220V secondary control loop.
The foregoing description of the utility model only be for explain clearly that the utility model does for example; And be not to be the qualification to the execution mode of the utility model; Those of ordinary skill for affiliated field; On the basis of above-mentioned explanation, can also make other multi-form variation or change; Here can't give exhaustively to all execution modes, conspicuous variation that every technical scheme that belongs to the utility model is extended out or change still are in the row of protection range of the utility model.
Claims (1)
1. one kind exchanges the emergency trip power supply; Comprise AC220V system power supply incoming end, voltage stabilizing didoe, storage capacitor, charging current limiter resistance and sub-gate circuit output; It is characterized in that: AC220V system power supply first incoming end (L) connects voltage stabilizing didoe D1; Voltage stabilizing didoe D1 and charging current limiter resistance R 1 are in series; Charging current limiter resistance R 1 also is connected with a storage capacitor C1; Storage capacitor C1 connects AC220V system power supply second incoming end (N); Charge through voltage stabilizing didoe D1 and 1 couple of storage capacitor C1 of charging current limiter resistance R under the normal situation of AC220V system power supply to be implemented in the control loop, the two ends of decompression control relay K1 connect AC220V system power supply first incoming end (L) and AC220V system power supply second incoming end (N) respectively, and storage capacitor C1 connects the auxiliary normally closed contact of voltage stabilizing didoe D2 and decompression control relay K1; Storage capacitor C1 is through the auxiliary normally closed contact discharge of voltage stabilizing didoe D2 and decompression control relay K1, for control loop provides the separating brake power supply under the situation of system power supply sudden power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201051454U CN202474839U (en) | 2012-03-20 | 2012-03-20 | Alternating current emergency tripping power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201051454U CN202474839U (en) | 2012-03-20 | 2012-03-20 | Alternating current emergency tripping power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202474839U true CN202474839U (en) | 2012-10-03 |
Family
ID=46922966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201051454U Expired - Fee Related CN202474839U (en) | 2012-03-20 | 2012-03-20 | Alternating current emergency tripping power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202474839U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955249A (en) * | 2015-07-28 | 2015-09-30 | 李泽宏 | Anti-flash LED AC driving circuit |
-
2012
- 2012-03-20 CN CN2012201051454U patent/CN202474839U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955249A (en) * | 2015-07-28 | 2015-09-30 | 李泽宏 | Anti-flash LED AC driving 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: 20121003 Termination date: 20160320 |