CN202663182U - Power supply control system - Google Patents
Power supply control system Download PDFInfo
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- CN202663182U CN202663182U CN2012200054563U CN201220005456U CN202663182U CN 202663182 U CN202663182 U CN 202663182U CN 2012200054563 U CN2012200054563 U CN 2012200054563U CN 201220005456 U CN201220005456 U CN 201220005456U CN 202663182 U CN202663182 U CN 202663182U
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- 238000001514 detection method Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 8
- 230000001052 transient effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model relates to a power supply control system and specifically relates to a power supply circuit control system. The power supply control system comprises an alternating current control power supply, a conventional power supply, a stand-by power supply, a conventional power supply voltage detection loop and a stand-by power supply voltage detection loop, wherein the conventional power supply and the stand-by power supply are respectively decreased an under-voltage tripping loop, and the conventional power supply voltage detection loop and the stand-by power supply voltage detection loop are respectively added with a time-delay opening branch. The power supply control system has properties of simple structure, simple and easy construction and mounting, low investment, and stable and reliable circuit protection effect; when a fault occurs at a superior power supply, a low voltage breaker carries out time-delay tripping operation to skip time of an instantaneous fault or superior power supply switching, so continuous power supply for users is guaranteed.
Description
Technical field
The utility model relates to a kind of power circuit control system.
Background technology
At present; intelligent universal circuit breaker has three section protection; ground protection; the functions such as under voltage dropout protection; the under voltage delayed release had 0.5 second; 1.5 second; 3.0 second three kinds of specifications; do not have under voltage long delay function; power supply commonly used and stand-by power supply lack under voltage and detect and the trip(ping) circuit of under voltage long delay; and delay time can not be adjusted arbitrarily; the problem of bringing is to have a power failure when the transformer room of user's low-voltage dual power power supply commonly used; after switching (time is 4 seconds), transformer station's process automatic reclosing (time is 1 second) and duplicate supply restore electricity; namely needed just can restore electricity in 5 seconds; be that transformer station's low-voltage circuit breaker before electrical source exchange is finished trips, can not realize before the action of transformer station reclosing or electrical source exchange finish before low-voltage circuit breaker do not trip.
Summary of the invention
The purpose of this invention is to provide a kind of novel power supply control system, break down to solve the prior art power supply, transformer station needed just can restore electricity in 5 seconds through automatic reclosing and electrical source exchange, transformer station's low-voltage circuit breaker before electrical source exchange is finished trips, can not realize before the action of transformer station reclosing or electrical source exchange finish before the problem that do not trip of low-voltage circuit breaker.
The utility model mainly is comprised of interchange control bus, power supply commonly used, stand-by power supply, power control loop commonly used, bus contact control loop, stand-by power supply control loop, solving the technical scheme that its technical problem adopts is: ac control power supply is set, power supply commonly used and stand-by power supply remove under voltage dropout loop, increase supply voltage commonly used detection loop and backup power source voltage detection loop, increase time-delay separating brake branch road in power control loop commonly used and the stand-by power supply control loop.
Described ac control power supply is comprised of auxiliary relay KM, fuse FU1, FU2, control switch SA, and single phase poaer supply 1A, 1N, single phase poaer supply 2A, 2N obtain single phase alternating current (A.C.) control power supply KM, N through auxiliary relay KM conversion output.
Described supply voltage commonly used detects the loop and is comprised of time relay 1KT, change over switch 1CK, fuse 11FU, 12FU, 13FU, voltmeter 1V, is connected respectively to three phase mains binding post 1A, 1B, 1C;
Described backup power source voltage detects the loop and is comprised of time relay 2KT, change over switch 2CK, fuse 21FU, 22FU, 23FU, voltmeter 2V, is connected respectively to three phase mains binding post 2A, 2B, 2C;
Time-delay separating brake branch road is comprised of time closing contact 1KT1, shunt release 1F, the circuit breaker normally opened contact 1QF of the time relay in the described power control loop commonly used;
Time-delay separating brake branch road is comprised of time closing contact 2KT1, shunt release 2F, the circuit breaker normally opened contact 2QF of the time relay in the described stand-by power supply control loop.
It is simple in structure adopting good effect of the present utility model, and construction and installation are simple and easy to do.Small investment (only need hundreds of unit), the circuit protection effect stability is reliable, and low-voltage circuit breaker delay tripping when upper level power supply runs into fault escapes time of transient fault or higher level's electrical source exchange, has ensured that the user powers continuously.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Accompanying drawing 1 is the utility model box structure schematic diagram;
1 ac control power supply, 2 supply voltages commonly used detect the loop among the figure, 3 backup power source voltage detect loop, 4 and exchange control bus, 5 power control loops commonly used, 6 bus contact control loops, 7 stand-by power supply control loops, 8 time-delay separating brake branch roads.
Embodiment
As shown in Figure 2: ac control power supply 1 is by auxiliary relay KM, fuse FU1, FU2, control switch SA forms, 1A receives fuse FU1 in the voltage detection circuit 2 commonly used, fuse FU1 and auxiliary relay coil KM, normal opened contact KM1 connects, 2A receives fuse FU2 in the backup power source voltage testing circuit 3, fuse FU2 is connected with auxiliary relay normally closed contact KM2, KM1, KM2, SA connects, SA receives the KM that exchanges control bus 4,1N, 2N receives the N that exchanges control bus 4, single phase poaer supply 1A, 1N, single phase poaer supply 2A, 2N obtains single phase alternating current (A.C.) control power supply KM through auxiliary relay KM conversion output, N; Supply voltage commonly used detects loop 2 and is comprised of time relay 1KT, change over switch 1CK, fuse 11FU, 12FU, 13FU, voltmeter 1V, 11FU, 12FU, 13FU receive respectively on three phase mains binding post 1A, 1B, the 1C, 1KT receives on 1A in the circuit, the 1C through 11FU, 13FU, power supply dead electricity commonly used, voltmeter 1V is without indication, starting time relay 1KT; Backup power source voltage detects loop 3 and is comprised of time relay 2KT, change over switch 2CK, fuse 21FU, 22FU, 23FU, voltmeter 2V, 21FU, 22FU, 13FU receive respectively on three phase mains binding post 2A, 2B, the 2C, 2KT receives on 2A in the circuit, the 2C through 21FU, 23FU, the stand-by power supply dead electricity, voltmeter 2V is without indication, starting time relay 2KT; Time-delay separating brake branch road 8 is comprised of time closing contact 1KT1, shunt release 1F, the circuit breaker normally opened contact 1QF of the time relay in the power control loop 5 commonly used, 1KT1 is in parallel with button 1SB2, closed through time-delay 1KT1 behind the power supply no-voltage commonly used, make circuit breaker 1QF separating brake; Time-delay separating brake branch road 8 is comprised of time closing contact 2KT1, shunt release 2F, the circuit breaker normally opened contact 2QF of the time relay in the stand-by power supply control loop 7,2KT1 is in parallel with button 2SB2, closed through time-delay 2KT1 behind the stand-by power supply no-voltage, make circuit breaker 2QF separating brake.
Exchange control bus 4, bus contact control loop 6 line constructions are same as the prior art.
1, normal operation, the 2A that 1A in the supply voltage detection commonly used loop 2 and backup power source voltage detect in the loop 3 delivers on the auxiliary relay KM of ac control power supply 1, auxiliary relay KM adhesive KM1 connects, and KM2 disconnects, and 1A is by the bus KM power supply of KM1 to ac control power supply 1.Press button 1SB1 in the power control loop 5 commonly used and the button 2SB1 in the stand-by power supply control loop 7, circuit breaker 1QF and the 2QF power supply of closing a floodgate, the circuit breaker 3QF in the bus contact control loop 6 disconnects.
2, commonly using power failure has a power failure: the auxiliary relay KM dead electricity in the ac control power supply 1, and KM1 disconnects, KM2 connects, and the 2A that backup power source voltage detects in the loop 3 powers to the bus KM in the ac control power supply 4 by KM2.Supply voltage commonly used detects loop 2 and detects no-voltage, and starting time relay 1KT is because having removed under-voltage release, 1QF can not trip immediately, if transient fault, through the duplicate supply switching of automatic reclosing and transformer station, time is 5S, and power supply commonly used does not trip, and restores electricity; If permanent fault, time-delay separating brake branch road 8 time relay time closing contact 1KT1(time settings in the power control loop 5 commonly used are 6S) closed tripping circuit breaker 1QF after 6 seconds; 1QF44-45 in the bus contact control loop 6 is closed, and bus-tie circuit breaker 3 QF close a floodgate, and continues power supply.
3, stand-by power supply fault outage: backup power source voltage detects loop 3 and detects no-voltage, starting time relay 2KT, because having removed under-voltage release, 2QF can not trip immediately, if transient fault, through the duplicate supply switching of automatic reclosing and transformer station, the time is 5S, stand-by power supply does not trip, and restores electricity; If permanent fault, time-delay separating brake branch road 8 time relay time closing contact 2KT1(time settings in the stand-by power supply control loop 7 are 6S) closed tripping circuit breaker 2QF after 6 seconds; 2QF44-45 in the bus contact control loop 6 is closed, and bus-tie circuit breaker 3 QF close a floodgate, and continues power supply.
Claims (6)
1. power control system, mainly formed by interchange control bus, power supply commonly used, stand-by power supply, power control loop commonly used, bus contact control loop, stand-by power supply control loop, it is characterized in that: ac control power supply is set, power supply commonly used and stand-by power supply remove under voltage dropout loop, supply voltage commonly used is set detects loop and backup power source voltage detection loop, increase time-delay separating brake branch road in power control loop commonly used and the stand-by power supply control loop.
2. described power control system according to claim 1, it is characterized in that, ac control power supply is comprised of auxiliary relay KM, fuse FU1, FU2, control switch SA, and single phase poaer supply 1A, 1N, single phase poaer supply 2A, 2N obtain single phase alternating current (A.C.) control power supply KM, N through auxiliary relay KM conversion output.
3. described power control system according to claim 1, it is characterized in that, supply voltage commonly used detects the loop and is comprised of time relay 1KT, change over switch 1CK, fuse 11FU, 12FU, 13FU, voltmeter 1V, is connected respectively to three phase mains binding post 1A, 1B, 1C.
4. described power control system according to claim 1, it is characterized in that, backup power source voltage detects the loop and is comprised of time relay 2KT, change over switch 2CK, fuse 21FU, 22FU, 23FU, voltmeter 2V, is connected respectively to three phase mains binding post 2A, 2B, 2C.
5. described power control system according to claim 1 is characterized in that, time-delay separating brake branch road is comprised of time closing contact 1KT1, shunt release 1F, the circuit breaker normally opened contact 1QF of the time relay in the power control loop commonly used.
6. described power control system according to claim 1 is characterized in that, time-delay separating brake branch road is comprised of time closing contact 2KT1, shunt release 2F, the circuit breaker normally opened contact 2QF of the time relay in the stand-by power supply control loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200054563U CN202663182U (en) | 2012-01-09 | 2012-01-09 | Power supply control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200054563U CN202663182U (en) | 2012-01-09 | 2012-01-09 | Power supply control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663182U true CN202663182U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200054563U Expired - Fee Related CN202663182U (en) | 2012-01-09 | 2012-01-09 | Power supply control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202663182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659938A (en) * | 2019-01-24 | 2019-04-19 | 中山市明阳电器有限公司 | A kind of voltage commutation circuit of voltage transformer low-pressure side |
-
2012
- 2012-01-09 CN CN2012200054563U patent/CN202663182U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659938A (en) * | 2019-01-24 | 2019-04-19 | 中山市明阳电器有限公司 | A kind of voltage commutation circuit of voltage transformer low-pressure side |
| CN109659938B (en) * | 2019-01-24 | 2023-10-10 | 广东明阳电气股份有限公司 | Voltage switching circuit of low-voltage side of voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130107 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130107 Address after: 253000 Shandong Province, Dezhou City Lake Street No. 1237 Patentee after: Dezhou Power Supply Company of Shandong Electric Power Group Corporation Patentee after: State Grid Corporation of China Address before: 253000 Shandong Province, Dezhou City Lake Street No. 2347 Patentee before: Dezhou Power Supply Company of Shandong Electric Power Group Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20160109 |