CN203398870U - Power supply intelligent monitoring rapid switching apparatus - Google Patents

Power supply intelligent monitoring rapid switching apparatus Download PDF

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Publication number
CN203398870U
CN203398870U CN201320510043.5U CN201320510043U CN203398870U CN 203398870 U CN203398870 U CN 203398870U CN 201320510043 U CN201320510043 U CN 201320510043U CN 203398870 U CN203398870 U CN 203398870U
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circuit
phase
signal input
signal output
switch
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杜云波
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MUDANJIANG HYDROELECTRIC GENERATION GENERAL FACTORY OF STATE GRID HEILONGJIANG ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
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MUDANJIANG HYDROELECTRIC GENERATION GENERAL FACTORY OF STATE GRID HEILONGJIANG ELECTRIC POWER Co Ltd
State Grid Corp of China SGCC
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems

Abstract

Provided is a power supply intelligent monitoring rapid switching apparatus, relating to the power supply switching technical field and aiming to solve the problem of low switching speed of a present high-power power supply switching apparatus. When a primary power supply breaks down, the electric switch of a stand-by power supply is connected in 20 ms; the switching apparatus controls an original operating system to start the stand-by power supply through linkage; when the stand-by power supply moves, a standby switch closing signal is sent to an intelligent state detection lock-up control unit; time is delayed for a certain time to guarantee the standby switch works stably, and the electronic switch is automatically out of operation; when the stand-by power supply encounter problems, such as coil disconnection, burning of control joints or main contacts, etc., the electronic switch can automatically works to guarantee uninterruptible load power supply. Compared with a traditional switching apparatus, the power supply intelligent monitoring rapid switching apparatus can meet work requirements of computers and centralized control equipment, with the switching time being shortened more than 98%. The power supply intelligent monitoring rapid switching apparatus is suitable for the places such as factory estates where centralized control requires high-power power supply switching equipment.

Description

Electrical source of power intellectual monitoring apparatus for fast switching
Technical field
The utility model relates to electrical source of power handoff technique.
Background technology
Along with the development of modern science and technology, the automatic management of factory and enterprise and LAN, monitoring management rise to a new stage, and centered by computer, high-tech integrated intelligence management and control have become the basis of enterprise's scientific management.So the requirement to power supply is also more and more higher, except the reliability of self system, in order to promote the reliability of electric power system, electric power system design and use are also in constantly updating and regenerating.Most typical is to adopt USP power-supply system to guarantee the supply of the uninterrupted power supply of power consumption equipment, and not only switch speed is fast for he, can also be as system blackout standby, be widely applied to produce and automation control in.But it is low that the shortcoming of UPS is load capacity, battery requires frequent maintenance and replacement, inadaptable power failure for a long time, can only be as short time stand-by power supply, and high power UPS power supply is because of the difference of switching mode, also can cause the transient-power failure of equipment, faults itself does not have standby, the shortcomings such as equipment manufacturing cost is high, difficult in maintenance.Popularization and expansion along with industrial automation, also improving constantly the capacity requirement of power supply, the production scheduling of electric power system especially, and center-control cluster, network center, as required, has all been equipped with two cover electrical source of power, to do standby.But what present large power supply switching device shifter major part was all used is that machinery or motor drive switching, switching time is long, can cause the transient-power failure of collection control and automation equipment, cause loss of data, equipment deadlock etc., therefore can cause not predictable serious consequence, serious meeting makes whole system paralysis.
Fault type and as follows to the requirement of device performance:
Power transfer device is all generally the mains side that is used in electric power system, load is relatively complicated, existing inductive load also has capacitive load, there is unidirectional loads also to have threephase load, this has just proposed a requirement to the detection of switching device shifter, can when breaking down, mains side guarantee quick cut-in stand-by power supply, in the time of guaranteeing again end band protection load faulty, do not switch, prevent from requiring high electric misoperation because of short duration power-off causes, cause unnecessary consequence, because there being single line load, so the electric current of three-phase has very large imbalance, so the detection of this device can not be monitored in the mode of monitoring current, can only judge with the detection of voltage and phase place ground short circuit and the open-phase fault of mains side and load outlet side, with this, switch fast.
1, power phase shortage;
Mains side phase shortage has following reason: A, the fusing of transformer export insurance; There is internal short-circuit and ground connection in B, transformer; Ground connection is crossed in C, power cable short circuit; D, main power source power failure etc.For this kind of fault, need power transfer device can carry out fast stand-by power supply switching.
2, load side outlet short circuit, earth fault.For this kind of fault, need power transfer device to monitor load side situation when switching, and will install locking, refusal switching.
As load side end, there is the faults such as short circuit, disconnected phase, ground connection.For this kind of fault, as long as power supply capacity allows, when line voltage is greater than 2/3 normal voltage value; need power transfer device can refuse to switch; to avoid unnecessary operation, as far as possible by the autoprotection unit protection of load equipment, avoid causing unnecessary repeatable operation.
Utility model content
The purpose of this utility model is in order to solve the low problem of current large power supply switching device shifter switch speed, and a kind of electrical source of power intellectual monitoring apparatus for fast switching is provided.
Electrical source of power intellectual monitoring apparatus for fast switching described in the utility model comprises the first origin operation circuit 1, the second origin operation circuit 2, first-phase voltage and phase place open-phase detection circuit 3, second-phase voltage and phase place open-phase detection circuit 4, negative sequence voltage testing circuit 5, third phase voltage and phase place open-phase detection circuit 6, the first Execution driven circuit 7, the second Execution driven circuit 8, the 3rd Execution driven circuit 9, intellectual status detects locking control circuit 10, tripping operation control circuit 11, time control circuit 12, logic control circuit 13, function commutation circuit 14, electronic switch 15, main switch 16 and backup circuit breaker 17,
The first switch controlling signal end of described the first origin operation circuit 1 connects the control signal input of main switch 16, the interlocking signal output of the first origin operation circuit 1 connects the interlocking signal input of the second origin operation circuit 2, the status signal output of the first origin operation circuit 1 connects the first origin operation circuit state signal input part that intellectual status detects locking control circuit 10, and the tripping operation control signal input of the first origin operation circuit 1 connects the tripping operation control signal output of tripping operation control circuit 11;
The position signalling output of the switch of the second origin operation circuit 2 connects the second origin operation circuit state signal input part that intellectual status detects locking control circuit 10, and the switch controlling signal output of the second origin operation circuit 2 connects the switch controlling signal input of backup circuit breaker 17;
The malfunction monitoring pulse signal output end of first-phase voltage and phase place open-phase detection circuit 3 connects the malfunction monitoring pulse signal input terminal of the first Execution driven circuit 7, three detection signal inputs of first-phase voltage and phase place open-phase detection circuit 3 connect respectively three terminals of a side of main switch 16, and first-phase voltage and phase place open-phase detection circuit 3 and three common ports of main switch 16 are connected respectively live wire, zero line and the ground wire of main power source;
Three terminals of the opposite side of main switch 16 connect respectively three detection signal inputs of second-phase voltage and phase place open-phase detection circuit 4;
The fault prison fault-signal output of second-phase voltage and phase place open-phase detection circuit 4 connects the malfunction monitoring fault-signal input of the 3rd Execution driven circuit 9, the disconnected phase signals output of second-phase voltage and phase place open-phase detection circuit 4 connects the phase signal input of negative sequence voltage testing circuit E, and three detection signal outputs of second-phase voltage and phase place open-phase detection circuit 4 are three terminals of the load side of connecting electronic switch 15 respectively;
The negative sequence voltage detection signal output of negative sequence voltage testing circuit E connects the negative sequence voltage detection signal input of the second Execution driven circuit 8, the function switch-over control signal output of the function switch-over control signal input linkage function commutation circuit 14 of negative sequence voltage testing circuit E;
Three detection signal inputs of third phase voltage and phase place open-phase detection circuit 6 are three detection signal outputs of connecting electronic switch 15 respectively, third phase voltage and phase place open-phase detection circuit 6 and three common ports of electronic switch 15 are connected respectively live wire, zero line and the ground wire of stand-by power supply, and the lock-in control signal output part of third phase voltage and phase place open-phase detection circuit 6 connects the lock-in control signal input part that intellectual status detects locking control circuit 10;
The control signal input of the first Execution driven circuit 7 connects the first control signal output that intellectual status detects locking control circuit 10, and the logic control signal output of the first Execution driven circuit 7 connects the first logic control signal input of logic control circuit 13;
The negative sequence voltage detection signal output of the second Execution driven circuit 8 connects the negative sequence voltage detection signal input of logic control circuit 13, and the control signal input of the second Execution driven circuit 8 connects the second control signal output that intellectual status detects locking control circuit 10;
The control signal input of the 3rd Execution driven circuit 9 connects the 3rd control signal output that intellectual status detects locking control circuit 10, and the logic control signal output of the 3rd Execution driven circuit 9 connects the second logic control signal input of logic control circuit 13;
Intellectual status detects the status signal output of the first switch state signal input connection main switch 16 of locking control circuit 10, intellectual status detects the time control signal output part of the time control signal input part connection time control circuit 12 of locking control circuit 10, intellectual status detects the function switch-over control signal output of the function switch-over control signal input linkage function commutation circuit 14 of locking control circuit 10, intellectual status detects the logic control signal input of the logic control signal output connection logic control circuit 13 of locking control circuit 10, intellectual status detects the status signal output of the tripping operation control signal input connection tripping operation control circuit 11 of locking control circuit 10, intellectual status detects the status signal output of the second switch status signal input connection backup circuit breaker 17 of locking control circuit 10,
The switching signal input of tripping operation control circuit 11 connects the switching signal output of logic control circuit 13;
The failure control signal output of the failure control signal input linkage function commutation circuit 14 of logic control circuit 13, the switch controlling signal input of the switch controlling signal output connecting electronic switch 15 of logic control circuit 13;
Three terminals of the load side of electronic switch 15 connect respectively three terminals of a side of backup circuit breaker 17, and three terminals of the opposite side of backup circuit breaker 17 are the detection signal output of connecting electronic switch 15 respectively.
Electrical source of power intellectual monitoring apparatus for fast switching described in the utility model is when main power source breaks down, electronic switch 15 is connected in 20ms, origin operation circuit starts backup circuit breaker 17 by interlock, after backup circuit breaker 17 actions, backup circuit breaker 17 switching signals are delivered to intellectual status and are detected locking control circuit 10, after delay certain hour guarantees that backup circuit breaker 17 inputs are stable, automatically electronic switch 15 is departed to operation, when backup circuit breaker 17 self breaks down, as coil breakage, control the faults such as contact scaling loss or main contact scaling loss, electronic switch 15 can put into operation automatically, proof load power supply is uninterrupted.Compare with traditional switching device shifter, shorten switching time more than 98%, can meet the need of work of computer and collection control equipment.
Accompanying drawing explanation
Fig. 1 is the theory diagram of electrical source of power intellectual monitoring apparatus for fast switching described in the utility model.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, electrical source of power intellectual monitoring apparatus for fast switching described in present embodiment comprises the first origin operation circuit 1, the second origin operation circuit 2, first-phase voltage and phase place open-phase detection circuit 3, second-phase voltage and phase place open-phase detection circuit 4, negative sequence voltage testing circuit 5, third phase voltage and phase place open-phase detection circuit 6, the first Execution driven circuit 7, the second Execution driven circuit 8, the 3rd Execution driven circuit 9, intellectual status detects locking control circuit 10, tripping operation control circuit 11, time control circuit 12, logic control circuit 13, function commutation circuit 14, electronic switch 15, main switch 16 and backup circuit breaker 17,
The first switch controlling signal end of described the first origin operation circuit 1 connects the control signal input of main switch 16, the interlocking signal output of the first origin operation circuit 1 connects the interlocking signal input of the second origin operation circuit 2, the status signal output of the first origin operation circuit 1 connects the first origin operation circuit state signal input part that intellectual status detects locking control circuit 10, and the tripping operation control signal input of the first origin operation circuit 1 connects the tripping operation control signal output of tripping operation control circuit 11;
The position signalling output of the switch of the second origin operation circuit 2 connects the second origin operation circuit state signal input part that intellectual status detects locking control circuit 10, and the switch controlling signal output of the second origin operation circuit 2 connects the switch controlling signal input of backup circuit breaker 17;
The malfunction monitoring pulse signal output end of first-phase voltage and phase place open-phase detection circuit 3 connects the malfunction monitoring pulse signal input terminal of the first Execution driven circuit 7, three detection signal inputs of first-phase voltage and phase place open-phase detection circuit 3 connect respectively three terminals of a side of main switch 16, and first-phase voltage and phase place open-phase detection circuit 3 and three common ports of main switch 16 are connected respectively live wire, zero line and the ground wire of main power source;
Three terminals of the opposite side of main switch 16 connect respectively three detection signal inputs of second-phase voltage and phase place open-phase detection circuit 4;
The fault prison fault-signal output of second-phase voltage and phase place open-phase detection circuit 4 connects the malfunction monitoring fault-signal input of the 3rd Execution driven circuit 9, the disconnected phase signals output of second-phase voltage and phase place open-phase detection circuit 4 connects the phase signal input of negative sequence voltage testing circuit E, and three detection signal outputs of second-phase voltage and phase place open-phase detection circuit 4 are three terminals of the load side of connecting electronic switch 15 respectively;
The negative sequence voltage detection signal output of negative sequence voltage testing circuit E connects the negative sequence voltage detection signal input of the second Execution driven circuit 8, the function switch-over control signal output of the function switch-over control signal input linkage function commutation circuit 14 of negative sequence voltage testing circuit E;
Three detection signal inputs of third phase voltage and phase place open-phase detection circuit 6 are three detection signal outputs of connecting electronic switch 15 respectively, third phase voltage and phase place open-phase detection circuit 6 and three common ports of electronic switch 15 are connected respectively live wire, zero line and the ground wire of stand-by power supply, and the lock-in control signal output part of third phase voltage and phase place open-phase detection circuit 6 connects the lock-in control signal input part that intellectual status detects locking control circuit 10;
The control signal input of the first Execution driven circuit 7 connects the first control signal output that intellectual status detects locking control circuit 10, and the logic control signal output of the first Execution driven circuit 7 connects the first logic control signal input of logic control circuit 13;
The negative sequence voltage detection signal output of the second Execution driven circuit 8 connects the negative sequence voltage detection signal input of logic control circuit 13, and the control signal input of the second Execution driven circuit 8 connects the second control signal output that intellectual status detects locking control circuit 10;
The control signal input of the 3rd Execution driven circuit 9 connects the 3rd control signal output that intellectual status detects locking control circuit 10, and the logic control signal output of the 3rd Execution driven circuit 9 connects the second logic control signal input of logic control circuit 13;
Intellectual status detects the status signal output of the first switch state signal input connection main switch 16 of locking control circuit 10, intellectual status detects the time control signal output part of the time control signal input part connection time control circuit 12 of locking control circuit 10, intellectual status detects the function switch-over control signal output of the function switch-over control signal input linkage function commutation circuit 14 of locking control circuit 10, intellectual status detects the logic control signal input of the logic control signal output connection logic control circuit 13 of locking control circuit 10, intellectual status detects the status signal output of the tripping operation control signal input connection tripping operation control circuit 11 of locking control circuit 10, intellectual status detects the status signal output of the second switch status signal input connection backup circuit breaker 17 of locking control circuit 10,
The switching signal input of tripping operation control circuit 11 connects the switching signal output of logic control circuit 13;
The failure control signal output of the failure control signal input linkage function commutation circuit 14 of logic control circuit 13, the switch controlling signal input of the switch controlling signal output connecting electronic switch 15 of logic control circuit 13;
Three terminals of the load side of electronic switch 15 connect respectively three terminals of a side of backup circuit breaker 17, and three terminals of the opposite side of backup circuit breaker 17 are the detection signal output of connecting electronic switch 15 respectively.
Electrical source of power intellectual monitoring apparatus for fast switching described in present embodiment, when reality is used, is powered by UPS or 220V batteries uninterrupted power supply, with assurance device reliability service.
First-phase voltage and phase place open-phase detection circuit 3 are monitored for line voltage, phase place with second-phase voltage and phase place open-phase detection circuit 4, while there is the faults such as phase shortage, short circuit or ground connection when power supply, first-phase voltage and phase place open-phase detection circuit 3 send signals to logic control circuit 13 with second-phase voltage and phase place open-phase detection circuit 4, and provide disconnected phase signals to control the break-make of electronic switch 15.
Negative sequence voltage testing circuit 5 is negative sequence voltage pass filters, is used for doing backup protection, improves the reliability of monitoring, by function commutation circuit 14, carries out function switching, by the second Execution driven circuit 8, sends signal to logic control circuit 13, controls electronic switch 15.
The first Execution driven circuit 7, the second Execution driven circuit 8 and the 3rd Execution driven circuit 9 are used for receiving the malfunction monitoring pulse that first-phase voltage and phase place open-phase detection circuit 3, second-phase voltage and phase place open-phase detection circuit 4 and negative sequence voltage testing circuit 5 send, differentiate processing, and receive logic control circuit 13 sends control signal, and its operating state is subject to the control that intellectual status detects locking control circuit 10.
It is function identification locking control circuits that described intellectual status detects locking control circuit 10, it differentiates the mode of operation of main switch 16 and backup circuit breaker 17 switch working states and the first origin operation circuit 1 and the second origin operation circuit 2, control accordingly as required and delay lock, in order to guarantee the correct and reliably working of package unit.
Tripping operation control circuit 11 is the interface arrangements with the first origin operation circuit 1, when logic control circuit 13 is controlled electronic switch 15 switches combined floodgate, tripping operation control circuit 11 sends tripping operation pulse to the first origin operation circuit 1, with the logical circuit of the first origin operation circuit 1, carries out tripping operation.
The Main Function of logic control circuit 13 is the front end signal receiving to be differentiated to control the on-off of electronic switch 15 switches, but its operating state is subject to the control of function commutation circuit 14 and intellectual status detection locking control circuit 10.
Time control circuit 12 is used for carrying out the delay adjustments of each section of locking and action.
Third phase voltage and phase place open-phase detection circuit 6 are used for monitoring the line voltage of stand-by power supply side, while there is the faults such as mutually disconnected or ground short circuit when stand-by power supply, third phase voltage and phase place open-phase detection circuit 6 provide block signal for intellectual status detects locking control circuit 10, locking package unit departs from stand-by state, and default phase signal is provided.
Electrical source of power intellectual monitoring apparatus for fast switching described in present embodiment in actual use, need to install according to the situation of field apparatus, different system adopts the different modes of connection, and the conventional mode of connection has single supply auxiliary for throwing mode for throwing mode and duplicate supply for throwing mode, duplicate supply.Single supply is suitable for single supply system for throwing mode, at power safety, carries out standby switching, automatic trip locking during as bus bar side generation phase shortage or earth fault during to the fault of switch itself.The active and standby throwing mode of duplicate supply is suitable for double power-supply system, and in-put of spare power supply when the phase shortage of switch own or earth fault are arrived in main power source, insurance, if auxiliary bus-bar side generation phase shortage or the locking of earth fault timer.Duplicate supply assists standby throwing mode mainly to take former standby throwing mode as main, and this spare power is auxiliary, plays compensation and the effects to the two standby throwings of backup circuit breaker of switching time.
Electrical source of power intellectual monitoring apparatus for fast switching described in present embodiment is when main power source breaks down, electronic switch 15 is connected in 20ms, the first origin operation circuit 1 and the second origin operation circuit 2 start backup circuit breaker 17 by interlock, after backup circuit breaker 17 actions, backup circuit breaker 17 switching signals are delivered to intellectual status and are detected locking control circuit 10, after delay certain hour guarantees that backup circuit breaker 17 inputs are stable, automatically electronic switch 15 is departed to operation, when backup circuit breaker 17 self breaks down, as coil breakage, control the faults such as contact scaling loss or main contact scaling loss, electronic switch 15 can put into operation automatically, proof load power supply is uninterrupted.Compare with traditional switching device shifter, shorten switching time more than 98%, can meet the need of work of computer and collection control equipment.
Embodiment two: the difference of the electrical source of power intellectual monitoring apparatus for fast switching described in present embodiment and execution mode one is: described device also comprises warning circuit 19, the alarm control signal input of described warning circuit 19 connects the alarm control signal output that intellectual status detects locking control circuit 10.
While there is the faults such as mutually disconnected or ground short circuit when stand-by power supply, third phase voltage and phase place open-phase detection circuit 6 provide block signal for intellectual status detects locking control circuit 10, and locking package unit departs from stand-by state, and audible alarm is provided.
Embodiment two: the difference of the electrical source of power intellectual monitoring apparatus for fast switching described in present embodiment and execution mode one is: described device also comprises 6 fuses 18, first-phase voltage and phase place open-phase detection circuit 3 are connected respectively live wire, zero line and the ground wire of main power source with three common ports of main switch 16 by 3 fuses 18, third phase voltage and phase place open-phase detection circuit 6 are connected respectively live wire, zero line and the ground wire of stand-by power supply with three common ports of electronic switch 15 by other 3 fuses 18.
When electric current is excessive, fuse 18 disconnects, and package unit is played a protective role.
Operation principle:
1, main power source drops into:
Main switch 16 closes a floodgate, switching signal sends to intellectual status to detect locking control circuit 10, intellectual status detects locking control circuit 10 time delays monitoring circuit is all dropped into, total locking (enter inspecting state timer again and overhaul total locking to guarantee the not malfunction of mains side laboratory installation) is removed in time delay, the effect of delay lock is get an electric shock while avoiding main switch 16 combined floodgate asynchronous, avoids error action of device to do.
2, in-put of spare power supply:
When main power source breaks down, in 20ms, electronic switch 15 is connected, the first origin operation circuit 1 and the second origin operation circuit 2 start backup circuit breaker 17 by interlock, after backup circuit breaker 17 closes a floodgate, switching signal is delivered to intellectual status and is detected locking control circuit 10, after delay certain hour guarantees that backup circuit breaker 17 inputs are stable, automatically electronic switch 15 is departed to operation, backup circuit breaker 17 moves as backup circuit breaker, when backup circuit breaker 17 self breaks down (as coil breakage, control contact scaling loss, the faults such as main contact scaling loss), electronic switch 15 can put into operation automatically, proof load power supply.
3, recover main power source power supply:
After main power source recovers normally, main power source main switch 16 need be closed, disconnect stand-by power supply.Need in operation sequence first to drop into main switch 16, make main power source and stand-by power supply parallel running, artificially cut off backup circuit breaker 17, at this moment the trip signal of backup circuit breaker 17 is delivered to intellectual status and is detected locking control circuit 10, automatically will after device locking certain hour, enter normal operating conditions again.
4, enter inspecting state:
First disconnect main switch 16, device work, closed backup circuit breaker 17, backup circuit breaker 17 tripping operations, according to main switch 16, backup circuit breaker 17 on off states and trip signal, device departs from operation by whole lockings, enters inspecting state.
5, stand-by power supply side phase shortage monitoring:
If stand-by power supply side fault phase shortage or ground connection, device can send sound and light alarm, and by the total locking of device, disconnects electronic switch 15 and backup circuit breaker 17 closing circuits, refusal switches, when if the short circuit of load side power outlet or earth fault cause main power source side fault, device cuts off rapidly main switch 16, and electronic switch 15 puts into operation, as fault exists, electronic switch 15 will hightail running status in 20ms, and disconnect backup circuit breaker 17 closing circuits, reduce fault spread.
6, other functions:
A, execute-in-place device switching (mains switch);
B, disconnected monitoring mutually: can monitor at any time main power source side, stand-by power supply side and load side phase shortage;
C, can on-the-spot drop into DK switch and stand-by power supply;
D, scene can be exited device locking;
E, scene can monitoring device various operating states, the operating state when understanding normal operation;
F, device can be furnished with the output of direct current disappearance of signal contact.

Claims (3)

1. electrical source of power intellectual monitoring apparatus for fast switching, it is characterized in that: it comprises the first origin operation circuit (1), the second origin operation circuit (2), first-phase voltage and phase place open-phase detection circuit (3), second-phase voltage and phase place open-phase detection circuit (4), negative sequence voltage testing circuit (5), third phase voltage and phase place open-phase detection circuit (6), the first Execution driven circuit (7), the second Execution driven circuit (8), the 3rd Execution driven circuit (9), intellectual status detects locking control circuit (10), tripping operation control circuit (11), time control circuit (12), logic control circuit (13), function switching unit (14), electronic switch (15), main switch (16) and backup circuit breaker (17),
The first switch controlling signal end of described the first origin operation circuit (1) connects the control signal input of main switch (16), the interlocking signal output of the first origin operation circuit (1) connects the interlocking signal input of the second origin operation circuit (2), the status signal output of the first origin operation circuit (1) connects the first origin operation circuit state signal input part that intellectual status detects locking control circuit (10), and the tripping operation control signal input of the first origin operation circuit (1) connects the tripping operation control signal output of tripping operation control circuit (11);
The position signalling output of the switch of the second origin operation circuit (2) connects the second origin operation circuit state signal input part that intellectual status detects locking control circuit (10), and the switch controlling signal output of the second origin operation circuit (2) connects the switch controlling signal input of backup circuit breaker (17);
The malfunction monitoring pulse signal output end of first-phase voltage and phase place open-phase detection circuit (3) connects the malfunction monitoring pulse signal input terminal of the first Execution driven circuit (7), three detection signal inputs of first-phase voltage and phase place open-phase detection circuit (3) connect respectively three terminals of a side of main switch (16), and first-phase voltage and phase place open-phase detection circuit (3) and three common ports of main switch (16) are connected respectively live wire, zero line and the ground wire of main power source;
Three terminals of the opposite side of main switch (16) connect respectively three detection signal inputs of second-phase voltage and phase place open-phase detection circuit (4);
The fault prison fault-signal output of second-phase voltage and phase place open-phase detection circuit (4) connects the malfunction monitoring fault-signal input of the 3rd Execution driven circuit (9), the disconnected phase signals output of second-phase voltage and phase place open-phase detection circuit (4) connects the phase signal input of negative sequence voltage testing circuit E, and three detection signal outputs of second-phase voltage and phase place open-phase detection circuit (4) are three terminals of the load side of connecting electronic switch (15) respectively;
The negative sequence voltage detection signal output of negative sequence voltage testing circuit E connects the negative sequence voltage detection signal input of the second Execution driven circuit (8), the function switch-over control signal output of the function switch-over control signal input linkage function switch unit (14) of negative sequence voltage testing circuit E;
Three detection signal inputs of third phase voltage and phase place open-phase detection circuit (6) are three detection signal outputs of connecting electronic switch (15) respectively, third phase voltage and phase place open-phase detection circuit (6) and three common ports of electronic switch (15) are connected respectively live wire, zero line and the ground wire of stand-by power supply, and the lock-in control signal output part of third phase voltage and phase place open-phase detection circuit (6) connects the lock-in control signal input part that intellectual status detects locking control circuit (10);
The control signal input of the first Execution driven circuit (7) connects the first control signal output that intellectual status detects locking control circuit (10), and the logic control signal output of the first Execution driven circuit (7) connects the first logic control signal input of logic control circuit (13);
The negative sequence voltage detection signal output of the second Execution driven circuit (8) connects the negative sequence voltage detection signal input of logic control circuit (13), and the control signal input of the second Execution driven circuit (8) connects the second control signal output that intellectual status detects locking control circuit (10);
The control signal input of the 3rd Execution driven circuit (9) connects the 3rd control signal output that intellectual status detects locking control circuit (10), and the logic control signal output of the 3rd Execution driven circuit (9) connects the second logic control signal input of logic control circuit (13);
Intellectual status detects the status signal output of the first switch state signal input connection main switch (16) of locking control circuit (10), intellectual status detects the time control signal output part of the time control signal input part connection time control circuit (12) of locking control circuit (10), intellectual status detects the function switch-over control signal output of the function switch-over control signal input linkage function switch unit (14) of locking control circuit (10), intellectual status detects the logic control signal input of the logic control signal output connection logic control circuit (13) of locking control circuit (10), intellectual status detects the status signal output of the tripping operation control signal input connection tripping operation control circuit (11) of locking control circuit (10), intellectual status detects the status signal output of the second switch status signal input connection backup circuit breaker (17) of locking control circuit (10),
The switching signal input of tripping operation control circuit (11) connects the switching signal output of logic control circuit (13);
The failure control signal output of the failure control signal input linkage function switch unit (14) of logic control circuit (13), the switch controlling signal input of the switch controlling signal output connecting electronic switch (15) of logic control circuit (13);
Three terminals of the load side of electronic switch (15) connect respectively three terminals of a side of backup circuit breaker (17), and three terminals of the opposite side of backup circuit breaker (17) are the detection signal output of connecting electronic switch (15) respectively.
2. electrical source of power intellectual monitoring apparatus for fast switching according to claim 1, it is characterized in that: it also comprises warning circuit (19), the alarm control signal input of described warning circuit (19) connects the alarm control signal output that intellectual status detects locking control circuit (10).
3. electrical source of power intellectual monitoring apparatus for fast switching according to claim 1, it is characterized in that: it also comprises 6 fuses (18), first-phase voltage and phase place open-phase detection circuit (3) are connected respectively live wire, zero line and the ground wire of main power source with three common ports of main switch (16) by 3 fuses (18), third phase voltage and phase place open-phase detection circuit (6) are connected respectively live wire, zero line and the ground wire of stand-by power supply with three common ports of electronic switch (15) by other 3 fuses (18).
CN201320510043.5U 2013-08-20 2013-08-20 Power supply intelligent monitoring rapid switching apparatus Active CN203398870U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374583A (en) * 2016-10-31 2017-02-01 张昊辰 Power delay conversion circuit
CN107479541A (en) * 2017-09-22 2017-12-15 武汉微智创大科技有限公司 A kind of wireless remote timing control switch Standby control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106374583A (en) * 2016-10-31 2017-02-01 张昊辰 Power delay conversion circuit
CN106374583B (en) * 2016-10-31 2019-08-20 河南省电子规划研究院有限责任公司 Power supply time delay conversion circuit
CN107479541A (en) * 2017-09-22 2017-12-15 武汉微智创大科技有限公司 A kind of wireless remote timing control switch Standby control method
CN107479541B (en) * 2017-09-22 2019-09-24 武汉微智创大科技有限公司 A kind of wireless remote timing control switch Standby control method

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