CN2387627Y - Deciliter power source of permanent-magnet switching mechanism - Google Patents
Deciliter power source of permanent-magnet switching mechanism Download PDFInfo
- Publication number
- CN2387627Y CN2387627Y CN 99221120 CN99221120U CN2387627Y CN 2387627 Y CN2387627 Y CN 2387627Y CN 99221120 CN99221120 CN 99221120 CN 99221120 U CN99221120 U CN 99221120U CN 2387627 Y CN2387627 Y CN 2387627Y
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- China
- Prior art keywords
- bridge rectifier
- switching
- power supply
- circuit
- output end
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- Expired - Fee Related
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Abstract
The utility model relates to a power supply device for supplying power of a permanent-magnet operating mechanism of an electric power vacuum switch. The utility model comprises a switching-off circuit and a switching-on circuit which are connected in parallel to the input end of a power supply; the switching-off circuit and the switching-on circuit have the same circuit structure and respectively comprise a bridge rectifier connected with the input end of the power supply; the positive output end of the bridge rectifier is connected in series with an isolation diode and a current limiting resistor; the negative output end of the bridge rectifier is connected with the other current limiting resistor; an energy storage capacitor is connected between the two current limiting resistors. The switching-off and the switching-on power supply of a permanent-magnet switching mechanism can greatly reduce the volume of a switching-off and the switching-on contactor connected with the power supply, reduce manufacture cost and prolong service life.
Description
The utility model relates to the supply unit to the permanent-magnet operating mechanism power supply of electric power vacuum switch.
At present, general electric power vacuum switch all is the function that is divided into separating brake, combined floodgate by electromagnetic operating mechanism or spring operating mechanism, has deficiencies such as complex structure, failure rate height, noise be big.For this reason, the employing patent No. is 98220417.5 " a kind of permanent-magnet operating mechanism of vacuum switch ", can replace electromagnetic operating mechanism and spring operating mechanism fully, that this patent has is simple in structure, be active in one's movements, noise is little and the characteristics of long service life, and its power supply is a DC power supply.Because the moment operating current of this permanent-magnet operating mechanism when vacuum switch separating brake or combined floodgate is very big, can reach 60A-80A, the deficiency that adopts DC power supply to make is: 1, the power of DC power supply is very big, is greater than 15KW; 2, the contactor volume that is connected between DC power supply and the permanent-magnet operating mechanism is very big, so that the ablation of hard arc when withstanding deenergization has increased manufacturing cost; 3, the ablation of contactor hard arc when being subjected to deenergization, useful life is short.
The purpose of this utility model provides that a kind of power is little, the volume of contactor is little and the permanent magnet switch operating mechanism divide-shut brake power supply of long service life.
This permanent magnet switch operating mechanism divide-shut brake power supply comprises sub-gate circuit and the closing circuit that is connected in parallel on the power input, sub-gate circuit comprises the bridge rectifier that is connected with power input, between the positive output end of the positive output end of bridge rectifier and sub-gate circuit, be in series with isolating diode and the current-limiting resistance that forward is connected, between the negative output terminal of the negative output terminal of bridge rectifier and sub-gate circuit, be connected to another current-limiting resistance, between the positive output end of sub-gate circuit and negative output terminal, be connected to energy storage capacitor, closing circuit comprises the bridge rectifier that is connected with power input, between the positive output end of the positive output end of bridge rectifier and closing circuit, be in series with isolating diode and the current-limiting resistance that forward is connected, between the negative output terminal of the negative output terminal of bridge rectifier and closing circuit, be connected to another current-limiting resistance, between the positive output end of closing circuit and negative output terminal, be connected to energy storage capacitor.
As improvement to permanent magnet switch operating mechanism divide-shut brake power supply, also be included in the coil that is connected to a monitoring voltage relay between the positive output end of the bridge rectifier in sub-gate circuit and the closing circuit and the negative output terminal respectively, when bridge rectifier when disconnected or other reasons does not have direct voltage output because of main fuse melts, normally-closed contact by this relay sends power-off signal to central control room, so that in time fix a breakdown.
During use, the both available alternating current of input power supply, also available direct current.The positive output end of sub-gate circuit and negative output terminal connect an end of two groups of normally opened contacts of separating brake contactor respectively, and the other end of these two groups of normally opened contacts is connected on the separating brake actuation coil two ends of permanent-magnet operating mechanism respectively.The positive output end of closing circuit and negative output terminal engage an end of two groups of normally opened contacts of lock contactor respectively, and the other end of these two groups of normally opened contacts is connected on the feed motion coil two ends of permanent-magnet operating mechanism respectively.
After connecting the input power supply, output dc voltage between the positive-negative output end of bridge rectifier, this direct voltage charges to energy storage capacitor through isolating diode and current-limiting resistance, directly causes abundance.When the control circuit of permanent-magnet operating mechanism makes two groups of normally opened contacts closures of separating brake contactor or closing contactor, the voltage at energy storage capacitor two ends just is added in the actuation coil two ends of permanent-magnet operating mechanism, form discharge loop, the permanent-magnet operating mechanism action is impelled in the magnetic field that its discharging current produces, realize separating brake or combined floodgate, carrying out along with discharge process, discharging current from large to small, at this moment, under the control of the control circuit of permanent-magnet operating mechanism, two groups of normally opened contacts of separating brake contactor or closing contactor are often become by closure to be opened, and disconnects discharge loop, energy storage capacitor charges again, is separating brake next time, it is ready to close a floodgate.
Use this permanent magnet switch operating mechanism divide-shut brake power supply, because permanent-magnet operating mechanism required electric energy when separating brake or combined floodgate is to be provided by the energy storage capacitor discharge, and the charging of energy storage capacitor is to carry out in the gap of separating brake or combined floodgate, thereby reduced the power of power supply, with directly compare by DC power supply, power reduces over half; Because two groups of normally opened contacts of separating brake contactor or closing contactor are being to carry out under the low-voltage state after the energy storage capacitor discharge by the moment that is closed into disconnection, thereby electric arc is very little, on the one hand the volume of contactor is dwindled significantly, reduced manufacturing cost, ablation degree to contacts of contactor greatly alleviates on the other hand, has prolonged the useful life of contactor; The input power supply adopts and exchanges or two kinds of supply power modes of direct current, has also widened the scope of application of permanent-magnet operating mechanism.
Accompanying drawing shows the circuit structure schematic diagram of permanent magnet switch operating mechanism divide-shut brake power supply embodiment.
In the present embodiment, permanent magnet switch operating mechanism divide-shut brake power supply comprises sub-gate circuit and the closing circuit that is connected in parallel on the power input, and sub-gate circuit comprises by fuse RD
1, RD
2The bridge rectifier D Z that is connected with power input
1, at bridge rectifier D Z
1The positive output end A of positive output end and sub-gate circuit between be in series with the isolating diode D that forward is connected
1With current-limiting resistance R
2, at bridge rectifier D Z
1Negative output terminal and the negative output terminal B of sub-gate circuit between be connected to another current-limiting resistance R
1, between the positive output end A of sub-gate circuit and negative output terminal B, be connected to energy storage capacitor C
1, at bridge rectifier D Z
1Positive output end and negative output terminal between meet a monitoring voltage relay coil J
1, at the positive output end A of sub-gate circuit and the separating brake actuation coil L of permanent-magnet operating mechanism
1An end between be in series with one group of normally opened contact TQ of separating brake contactor
2, at the negative output terminal B of sub-gate circuit and the separating brake actuation coil L of permanent-magnet operating mechanism
1The other end between be in series with another group normally opened contact TQ of separating brake contactor
1, closing circuit comprises by fuse RD
3, RD
4The bridge rectifier D Z that is connected with power input
2, at bridge rectifier D Z
2The positive output end M of positive output end and closing circuit between be in series with the isolating diode D that forward is connected
2With current-limiting resistance R
4, at bridge rectifier D Z
2Negative output terminal and the negative output terminal N of closing circuit between be connected to another current-limiting resistance R
3, between the positive output end M of closing circuit and negative output terminal N, be connected to energy storage capacitor C
2, at bridge rectifier D Z
2Positive output end and negative output terminal between meet a monitoring voltage relay coil J
2, at the positive output end M of closing circuit and the feed motion coil L of permanent-magnet operating mechanism
2An end between be in series with one group of normally opened contact HQ of closing contactor
2, at the negative output terminal N of closing circuit and the feed motion coil L of permanent-magnet operating mechanism
2The other end between be in series with another group normally opened contact HQ of closing contactor
1Above-mentioned energy storage capacitor C
1And C
2Charging interval be chosen in about 1 second.
Claims (2)
1, a kind of permanent magnet switch operating mechanism divide-shut brake power supply is characterized in that comprising the sub-gate circuit and the closing circuit that are connected in parallel on the power input, and sub-gate circuit comprises the bridge rectifier (DZ that is connected with power input
1), at bridge rectifier (DZ
1) the positive output end (A) of positive output end and sub-gate circuit between be in series with the isolating diode (D that forward is connected
1) and current-limiting resistance (R
2), at bridge rectifier (DZ
1) negative output terminal and the negative output terminal (B) of sub-gate circuit between be connected to another current-limiting resistance (R
1), between the positive output end (A) of sub-gate circuit and negative output terminal (B), be connected to energy storage capacitor (C
1), closing circuit comprises the bridge rectifier (DZ that is connected with power input
2), at bridge rectifier (DZ
2) the positive output end (M) of forward transportation end and closing circuit between be in series with the isolating diode (D that forward is connected
2) and current-limiting resistance (R
4), at bridge rectifier (DZ
2) negative output terminal and the negative output terminal (N) of closing circuit between be connected to another current-limiting resistance (R
3), between the positive output end (M) of closing circuit and negative output terminal (N), be connected to energy storage capacitor (C
2).
2, general right requires 1 described permanent magnet switch operating mechanism divide-shut brake power supply, it is characterized in that also being included in the bridge rectifier (DZ in sub-gate circuit and the closing circuit
1, DZ
2) positive output end and negative output terminal between be connected to the coil (J of a monitoring voltage relay respectively
1, J
2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221120 CN2387627Y (en) | 1999-06-05 | 1999-06-05 | Deciliter power source of permanent-magnet switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99221120 CN2387627Y (en) | 1999-06-05 | 1999-06-05 | Deciliter power source of permanent-magnet switching mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2387627Y true CN2387627Y (en) | 2000-07-12 |
Family
ID=34011743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99221120 Expired - Fee Related CN2387627Y (en) | 1999-06-05 | 1999-06-05 | Deciliter power source of permanent-magnet switching mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2387627Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021978A (en) * | 2014-06-25 | 2014-09-03 | 法泰电器（江苏）股份有限公司 | Constant-current charging switching device for switching-on switching-off capacitor of permanent magnet vacuum switch and control method thereof |
| CN106877284A (en) * | 2017-04-07 | 2017-06-20 | 辽宁工业大学 | Pure hardware circuit modularization clock switch controller |
-
1999
- 1999-06-05 CN CN 99221120 patent/CN2387627Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021978A (en) * | 2014-06-25 | 2014-09-03 | 法泰电器（江苏）股份有限公司 | Constant-current charging switching device for switching-on switching-off capacitor of permanent magnet vacuum switch and control method thereof |
| CN104021978B (en) * | 2014-06-25 | 2016-03-02 | 法泰电器（江苏）股份有限公司 | Permanent magnetic vacuum switch divide-shut brake capacitance galvanostatic charging switching device shifter and control method thereof |
| CN106877284A (en) * | 2017-04-07 | 2017-06-20 | 辽宁工业大学 | Pure hardware circuit modularization clock switch controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |