CN103872760B - Automatic power supply switching control device of transformer - Google Patents
Automatic power supply switching control device of transformer Download PDFInfo
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- CN103872760B CN103872760B CN201410135380.XA CN201410135380A CN103872760B CN 103872760 B CN103872760 B CN 103872760B CN 201410135380 A CN201410135380 A CN 201410135380A CN 103872760 B CN103872760 B CN 103872760B
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Abstract
The invention discloses an automatic power supply switching control device of a transformer. The device comprises a first controller and a second controller, the first controller and the second controller are connected in a wireless mode, the first controller and the second controller are identical in structure, the first controller is used for controlling a first breaker, the first breaker is connected with a first power supply, the second controller is used for controlling a second breaker and the second breaker is connected with a second power supply. According to the automatic power supply switching control device of the transformer, when a power supply line in a double-power-supply power system is powered off or breaks down, a high-voltage switch on the line is quickly switched off, the connection between the line and a user is cut off, meanwhile, the other line is started and supplies power to the user in a wireless transmission method and uninterrupted power supply is achieved. The device has the advantages of being convenient to install, high in anti-interference capacity, reliable in operation and the like.
Description
This application claims and submit on December 31st, 2013 priority that Patent Office of the People's Republic of China, application number are 201320886938.9, denomination of invention is the Chinese patent application of " a kind of transformer-supplied automatic switching control device " to, its full content combines in this application by reference.
Technical field
The application relates to power supply control technical field, especially a kind of transformer-supplied automatic switching control device.
Background technology
Along with the develop rapidly of power consumption equipment, the reliability requirement of people to electric power system is more and more higher, the equipment of the long-term uninterrupted power supply of ask for something, normal employing dual power supply mode, each power supply is connected with the load of user by a high-voltage switch gear, and duplicate supply backups each other, when in running order power failure, high-voltage switch gear on this circuit will separating brake, cuts off and the contacting of user, enables another power supply to customer power supply simultaneously.
Inventor finds through research, in current transformer-supplied automatic switching control device, carry out exchange message with fixing communication line between the controller of two electronic transformers, utilize fixed line communication, comparatively loaded down with trivial details when mounted, also need Poling Construction when two electronic transformers are distant, not only waste of manpower but also waste financial resources, increase the difficulty that equipment is installed.
Summary of the invention
In view of this, this application provides a kind of transformer-supplied automatic switching control device, utilize fixed line communication to solve in prior art, loaded down with trivial details problem is installed.
The technical scheme that the application provides is as follows:
A kind of transformer-supplied automatic switching control device, comprising:
First controller of wireless connections and second controller;
Described first controller is identical with described second controller structure, and described first controller is used for controlling the first circuit breaker, and described first circuit breaker is connected with the first power supply;
Described second controller is used for controlling the second circuit breaker, and described second circuit breaker is connected with the second power supply;
Described first controller comprises:
Power supply circuits, single-chip microcomputer (U1), the signal acquisition circuit, executive circuit and the communicating circuit that are connected with single-chip microcomputer (U1);
Described power supply circuits comprise transformer (T), rectifier bridge (ZQ), switching regulator (WY), the first electric capacity (C1) and the second electric capacity (C2);
The alternating voltage of described first power supply accesses the ac input end of rectifier bridge (ZQ) after transformer (T) step-down, the direct voltage that described rectifier bridge (ZQ) exports sends into the input of switching regulator (WY) after the first electric capacity (C1) filtering, the direct voltage that described switching regulator (WY) exports after the second electric capacity (C2) filtering for the single-chip microcomputer (U1) of controller, signal acquisition circuit, executive circuit and communicating circuit are powered;
Described signal acquisition circuit comprises: "on" position testing circuit, gate-dividing state testing circuit, current collection circuit and power-fail detection circuit;
Described "on" position testing circuit comprises:
First voltage-stabiliser tube (D1), the first resistance (R1), the 3rd electric capacity (C3), the first optocoupler (G1) and the first pull-up resistor (Ru1);
The output voltage of described power supply circuits inputs to the first voltage-stabiliser tube (D1) through the auxiliary normally-closed contact of current-limiting resistance (R0) and the first circuit breaker successively, the output voltage of described first voltage-stabiliser tube (D1) inputs to the input of the first optocoupler (G1) through a RC filter, a described RC filter is made up of the first resistance (R1) and the 3rd electric capacity (C3);
The output signal of described first optocoupler (G1) connects the P0.2 end of single-chip microcomputer (U1) after the first pull-up resistor (Ru1) pull-up;
Described gate-dividing state testing circuit comprises:
Second voltage-stabiliser tube (D2), the second resistance (R2), the 4th electric capacity (C4), the second optocoupler (G2) and the second pull-up resistor (Ru2);
The output voltage of described power supply circuits inputs to the second voltage-stabiliser tube (D2) through the auxiliary normally opened contact of current-limiting resistance (R0) and the first circuit breaker successively, the output voltage of described second voltage-stabiliser tube (D2) inputs to the input of the second optocoupler (G2) through the 2nd RC filter, described 2nd RC filter is made up of the second resistance (R2) and the 4th electric capacity (C4);
The output signal of described second optocoupler (G2) connects the P0.3 end of single-chip microcomputer (U1) after the second pull-up resistor (Ru2) pull-up;
Described current collection circuit comprises:
First current transformer (CT1), the second current transformer (CT2), the 3rd resistance (R3), the 4th resistance (R4), the 13 resistance (R13), the 14 resistance (R14), the 5th electric capacity (C5) and the 6th electric capacity (C6);
Described first current transformer (CT1) is connected on the A phase CT of AC power, and its output current connects the P0.0 end of single-chip microcomputer (U1) after the 13 resistance (R13) is converted to voltage signal through the 3rd RC filter; Described 3rd RC filter is made up of the 3rd resistance (R3) and the 5th electric capacity (C5);
Described second current transformer (CT2) is connected on the C phase CT of AC power, and its output current connects the P0.1 end of single-chip microcomputer (U1) after the 14 resistance (R14) is converted to voltage signal through the 4th RC filter; Described 4th RC filter is made up of the 4th resistance (R4) and the 6th electric capacity (C6);
Described power-fail detection circuit comprises:
Bridge rectifier (QZ), the 5th resistance (R5), the 7th electric capacity (C7), the 3rd optocoupler (G3) and the 3rd pull-up resistor (Ru3);
The ac input end of described bridge rectifier (QZ) connects AC power, and its direct voltage exported connects the input of the 3rd optocoupler (G3) through the 5th RC filter, described 5th RC filter is made up of the 5th resistance (R5) and the 7th electric capacity (C7);
The output signal of described 3rd optocoupler (G3) connects the P0.4 end of single-chip microcomputer (U1) after the 3rd pull-up resistor (Ru3) pull-up.
Above-mentioned device, preferably, described executive circuit comprises contacting controling circuit and sub-gate control circuit;
Described contacting controling circuit comprises triode (Q1), relay (J) and the 6th resistance (R6);
The base stage of described triode (Q1) connects the P0.7 port of single-chip microcomputer (U1) through the 6th resistance (R6), the grounded emitter of described triode (Q1), the collector electrode of described triode (Q1) connects the positive pole of described first power supply through the control coil of relay (J), and the contact of described relay (J) controls the closing coil (HQ) of the first circuit breaker;
Described sub-gate control circuit comprises field effect transistor (Q2), the 6th optocoupler (G6) and the 7th resistance (R7), the input of described 6th optocoupler (G6) connects the P0.6 port of single-chip microcomputer (U1) by the 7th resistance (R7), export the grid of termination field effect transistor (Q2), described field effect transistor (Q2) controls the switching winding (TQ) of the first circuit breaker.
Above-mentioned device, preferably, described communicating circuit comprises the 4th optocoupler (G4), the 5th optocoupler (G5) and radio receiving transmitting module (U2);
The RXD mouth of described single-chip microcomputer (U1) is connected with the TXDA mouth of described radio receiving transmitting module (U2) through described 4th optocoupler (G4);
The TXD mouth of described single-chip microcomputer (U1) is connected with the RXDB mouth of described radio receiving transmitting module (U2) through the 5th optocoupler (G5) respectively.
Above-mentioned device, preferably, also comprises: cold-proof heater;
Described cold-proof heater comprises ptc heater (H) and the temperature switch (Kt) of series connection mutually;
Described temperature switch (Kt) is connected with described first power supply.
Above-mentioned device, preferably, also comprises: input toggle switch array (SW) and status indicator lamp (LED);
Described input toggle switch array (SW) is all connected with described single-chip microcomputer (U1) with described status indicator lamp (LED).
Above-mentioned device, preferably, the input of described switching regulator (WY) is provided with bi-directional voltage stabilizing pipe (DW).
The transformer-supplied automatic switching control device that the embodiment of the present invention provides, supply line in dual power supply system has a power failure or when breaking down, make rapidly the high-voltage switch gear separating brake on this circuit, cut-out contacts with user's, start another circuit to customer power supply by the method for wireless transmission simultaneously, realize free of discontinuities and power.This device have easy for installation, antijamming capability is strong, the advantage such as reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of transformer-supplied automatic switching control device that Fig. 1 provides for the application;
The another structural representation of a kind of transformer-supplied automatic switching control device that Fig. 2 provides for the application;
The another structural representation of a kind of transformer-supplied automatic switching control device that Fig. 3 provides for the application;
A kind of another structural representation of transformer-supplied automatic switching control device of Fig. 4 for providing for the application.
In figure, each list of reference numerals is: U1, single-chip microcomputer, U2, radio receiving transmitting module, PT, voltage transformer, T, transformer, WY, switching regulator, DW, bi-directional voltage stabilizing pipe, ZQ, rectifier bridge, QZ, bridge rectifier bridge, Kt, temperature switch, H, ptc heater, CT1, first current transformer, CT2, second current transformer, D1, first voltage-stabiliser tube, D2, second voltage-stabiliser tube, D3, 3rd voltage-stabiliser tube, D4, rectifier diode, RL, auxiliary contacts of circuit breaker, G1 ~ G6, first reflective coupling ~ the 6th optocoupler, J, relay, Q1, triode, Q2, field effect transistor, R0, current-limiting resistance, R1 ~ R14, first resistance ~ the 14 resistance, Ru1 ~ Ru3, first pull-up resistor ~ the 3rd pull-up resistor, C1 ~ C9, first electric capacity ~ the 9th electric capacity, SW, input toggle switch array, LED, status indicator lamp, HQ, closing coil, TQ, switching winding.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
The embodiment of the present invention provides a kind of transformer-supplied automatic switching control device, is introduced the structural representation of this device below in conjunction with Fig. 1, Fig. 2 and Fig. 3, and this device comprises:
In Fig. 1, the first controller 102 of wireless connections and second controller 104;
Described first controller 102 is identical with described second controller 104 structure, and described first controller 102 is for controlling the first circuit breaker 103, and described first circuit breaker 103 is connected with the first power supply 101;
Described second controller 104 is for controlling the second circuit breaker 106, and described second circuit breaker 106 is connected with the second power supply 105.
In the embodiment of the present invention, the first controller 102 is identical with the structure and fuction of second controller 104, below based on the first controller 102, is introduced the structure of the first controller 102, as shown in Figure 2:
Described first controller 102 comprises:
Power supply circuits, single-chip microcomputer (U1), the signal acquisition circuit, executive circuit and the communicating circuit that are connected with single-chip microcomputer (U1);
Described power supply circuits comprise transformer (T), rectifier bridge (ZQ), switching regulator (WY), the first electric capacity (C1) and the second electric capacity (C2);
The alternating voltage of described first power supply accesses the ac input end of rectifier bridge (ZQ) after transformer (T) step-down, the direct voltage that described rectifier bridge (ZQ) exports sends into the input of switching regulator (WY) after the first electric capacity (C1) filtering, the direct voltage that described switching regulator (WY) exports after the second electric capacity (C2) filtering for the single-chip microcomputer (U1) of controller, signal acquisition circuit, executive circuit and communicating circuit are powered;
As shown in Figure 3, described signal acquisition circuit comprises: "on" position testing circuit, gate-dividing state testing circuit, current collection circuit and power-fail detection circuit;
Described "on" position testing circuit comprises:
First voltage-stabiliser tube (D1), the first resistance (R1), the 3rd electric capacity (C3), the first optocoupler (G1) and the first pull-up resistor (Ru1);
The output voltage of described power supply circuits inputs to the first voltage-stabiliser tube (D1) through the auxiliary normally-closed contact of current-limiting resistance (R0) and the first circuit breaker successively, the output voltage of described first voltage-stabiliser tube (D1) inputs to the input of the first optocoupler (G1) through a RC filter, a described RC filter is made up of the first resistance (R1) and the 3rd electric capacity (C3);
The output signal of described first optocoupler (G1) connects the P0.2 end of single-chip microcomputer (U1) after the first pull-up resistor (Ru1) pull-up;
Described gate-dividing state testing circuit comprises:
Second voltage-stabiliser tube (D2), the second resistance (R2), the 4th electric capacity (C4), the second optocoupler (G2) and the second pull-up resistor (Ru2);
The output voltage of described power supply circuits inputs to the second voltage-stabiliser tube (D2) through the auxiliary normally opened contact of current-limiting resistance (R0) and the first circuit breaker successively, the output voltage of described second voltage-stabiliser tube (D2) inputs to the input of the second optocoupler (G2) through the 2nd RC filter, described 2nd RC filter is made up of the second resistance (R2) and the 4th electric capacity (C4);
The output signal of described second optocoupler (G2) connects the P0.3 end of single-chip microcomputer (U1) after the second pull-up resistor (Ru2) pull-up;
Described current collection circuit comprises:
First current transformer (CT1), the second current transformer (CT2), the 3rd resistance (R3), the 4th resistance (R4), the 13 resistance (R13), the 14 resistance (R14), the 5th electric capacity (C5) and the 6th electric capacity (C6);
Described first current transformer (CT1) is connected on the A phase CT of AC power, and its output current connects the P0.0 end of single-chip microcomputer (U1) after the 13 resistance (R13) is converted to voltage signal through the 3rd RC filter; Described 3rd RC filter is made up of the 3rd resistance (R3) and the 5th electric capacity (C5);
Described second current transformer (CT2) is connected on the C phase CT of AC power, and its output current connects the P0.1 end of single-chip microcomputer (U1) after the 14 resistance (R14) is converted to voltage signal through the 4th RC filter; Described 4th RC filter is made up of the 4th resistance (R4) and the 6th electric capacity (C6);
Described power-fail detection circuit comprises:
Bridge rectifier (QZ), the 5th resistance (R5), the 7th electric capacity (C7), the 3rd optocoupler (G3) and the 3rd pull-up resistor (Ru3);
The ac input end of described bridge rectifier (QZ) connects AC power, and its direct voltage exported connects the input of the 3rd optocoupler (G3) through the 5th RC filter, described 5th RC filter is made up of the 5th resistance (R5) and the 7th electric capacity (C7);
The output signal of described 3rd optocoupler (G3) connects the P0.4 end of single-chip microcomputer (U1) after the 3rd pull-up resistor (Ru3) pull-up.
In the embodiment of the present invention, the first controller 102 is identical with the operation principle of second controller 104, when second controller 104 works, is carried out exchanging by the corresponding component in the above-mentioned course of work.
Described executive circuit comprises contacting controling circuit and sub-gate control circuit;
Described contacting controling circuit comprises triode (Q1), relay (J) and the 6th resistance (R6);
The base stage of described triode (Q1) connects the P0.7 port of single-chip microcomputer (U1) through the 6th resistance (R6), the grounded emitter of described triode (Q1), the collector electrode of described triode (Q1) connects the positive pole of described first power supply through the control coil of relay (J), and the contact of described relay (J) controls the closing coil (HQ) of the first circuit breaker;
Described sub-gate control circuit comprises field effect transistor (Q2), the 6th optocoupler (G6) and the 7th resistance (R7), the input of described 6th optocoupler (G6) connects the P0.6 port of single-chip microcomputer (U1) by the 7th resistance (R7), export the grid of termination field effect transistor (Q2), described field effect transistor (Q2) controls the switching winding (TQ) of the first circuit breaker.
Described communicating circuit comprises the 4th optocoupler (G4), the 5th optocoupler (G5) and radio receiving transmitting module (U2);
The RXD mouth of described single-chip microcomputer (U1) is connected with the TXDA mouth of described radio receiving transmitting module (U2) through described 4th optocoupler (G4);
The TXD mouth of described single-chip microcomputer (U1) is connected with the RXDB mouth of described radio receiving transmitting module (U2) through the 5th optocoupler (G5) respectively.
As shown in Figure 4, in the device that the embodiment of the present invention provides, also comprise: cold-proof heater;
Described cold-proof heater comprises ptc heater (H) and the temperature switch (Kt) of series connection mutually;
Described temperature switch (Kt) is connected with described first power supply.
Also comprise in the device that the embodiment of the present invention provides: input toggle switch array (SW) and status indicator lamp (LED);
Described input toggle switch array (SW) is all connected with described single-chip microcomputer (U1) with described status indicator lamp (LED).
The input of described switching regulator (WY) is provided with bi-directional voltage stabilizing pipe (DW).
Described from the structure of said apparatus, in the embodiment of the present invention, transformer-supplied automatic switching control device comprises the identical controller of two structures, be respectively the first controller, second controller, they participate in the control that each self-loop interrupts road device respectively, and its running is as follows:
1, sub-switching operation is performed after the first (the second) controller power down, local state is sent to the second (the first) controller by wireless transmission after separating brake completes, after second (the first) controller receives the power down gate-dividing state signal of the first (the second) controller, perform closing operation.
2, after the first (the second) controller overcurrent separating brake, send local state signal to the second (the first) controller by wireless transmission, after the second (the first) controller receives the overcurrent gate-dividing state signal of the first controller, perform closing operation.If the second (the first) controller overcurrent separating brake in combined floodgate 3S, then think that loaded line exists permanent fault, second (the first) controller locking, and send block signal to the first (the second) controller, this controller is set as blocking after receiving the block signal of the second (the first) controller by the first (the second) controller, and after locking, controller unlocks after closing by hand order being detected.
Current collection circuit is for detecting over-current signal, and existing transformer is thrown control device mutually and provided fault-signal by other protective device, and such configuration makes the setting of protection place one's entire reliance upon other device, very dumb.Current sample, optimum configurations are integrated into controller inside by the present invention, ensure that the correctness of route protection, promptness, ease for use.
3, the first (the second) controller detects automatic unlocking after closing by hand signal, sends unlock command to the second (the first) controller simultaneously, unlocks after the second (the first) controller receives this order.
Fig. 4 display be the electrical schematic diagram of controller.The model of the part components and parts adopted in figure is: single-chip microcomputer U1 is LPC2114 chip, and radio receiving transmitting module U2 is FC201/SA chip.
Controller is made up of signal acquisition circuit, executive circuit, communicating circuit.
Signal acquisition circuit is made up of "on" position testing circuit, gate-dividing state testing circuit, current collection circuit, power-fail detection circuit.Wherein the first voltage-stabiliser tube D1, first voltage-stabiliser tube D2 is peak value inhibitor, for the high spike interference signal in filter out signal, first resistance R1, second resistance R2, 5th resistance R5 and the 3rd electric capacity C3, 4th electric capacity C4, 7th electric capacity C7 forms three RC filters, in this section in circuit, the various signals collected (comprise opening and closing state signal, fault-signal, power-off signal) deliver to optocoupler (G1 through RC filter filtering, G2, G3) signal isolation is carried out, signal is again through pull-up resistor (Ru1, Ru2, Ru3) single-chip microcomputer U1 process is delivered to after pull-up, single-chip microcomputer U1 carries out process to the signal collected and compares.
Executive circuit is made up of contacting controling circuit, sub-gate control circuit, and P0.7, P0.6 mouth of single-chip microcomputer U1 connects contacting controling circuit, sub-gate control circuit respectively.Single-chip microcomputer U1 compares process according to the status signal collected and the communication signal received, and when needs perform an action, single-chip microcomputer U1 sends control signal, and control signal is through amplifying rear drive combined floodgate or switching winding.
Communicating circuit forms primarily of the 4th optocoupler G4, the 5th optocoupler G5 and radio receiving transmitting module U2, single-chip microcomputer U1 is when needing and another controller carries out communication or receives signal that another controller sends, Signal transmissions will be carried out, at this moment single-chip microcomputer U1 and radio receiving transmitting module U2 swap data in a serial fashion, by single-chip microcomputer U1 process.Optocoupler is used for carrying out necessary isolation, to improve interference free performance to signal.
In the present invention, can be customized to multiple by the frequency of controller receiving and transmitting signal, user can adopt different frequencies by apart from close controller when mounted, effectively to eliminate the interference between neighbor controller.
Because the transceiver module of the controller of two in the present invention is operated in same frequency range, their transmissions simultaneously can make signal mutually disturb, the method solved adds signal return information in the software of system, if transmit leg does not receive the return information of recipient, then transmit leg fixed time intervals is retransmitted, maximum three times, to reduce the miscommunication that this interference causes.Meanwhile, this interval time is different for each controller, and the difference of their interval times is greater than the time of transmission one secondary data, if the signal once between them has overlap, then retransmit will not be overlapping more next time.
For improving the anti-interference of software, improper reset can be added in a program and identify, and adopting instruction redundancy technique, not adopt Interception Technology reach the reliable of program and reset in time after program is made mistakes with unit.
After making line outage, there is sufficient power-on time to send wireless signal, notify another controller.Traditional circuit have employed the scheme of batteries to store energy, but service lifetime of accumulator is limited, and especially long-time the used time does not very easily cause accumulator plate sulfuration, and cannot charge, making power down throw function mutually cannot realize.The present invention adopts the scheme of capacitance energy storage, by improving capacitance voltage, strengthen capacitance, use efficient switching regulator to ensure power down after have enough energy and be efficiently utilized.
When controller can use in high and cold the Northeast, should take heating and Insulation, traditional heating module adopts strip heater, and when temperature switch short circuit, heater continuous heating, easily causes local temperature too high and burn housing and wiring board.Present invention employs ptc heater, it has automatic constant-temperature function, even if temperature switch is abnormal, also can not cause controller failure.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a transformer-supplied automatic switching control device, is characterized in that, comprising:
First controller of wireless connections and second controller;
Described first controller is identical with described second controller structure, and described first controller is used for controlling the first circuit breaker, and described first circuit breaker is connected with the first power supply;
Described second controller is used for controlling the second circuit breaker, and described second circuit breaker is connected with the second power supply;
Described first controller comprises:
Power supply circuits, single-chip microcomputer (U1), the signal acquisition circuit, executive circuit and the communicating circuit that are connected with single-chip microcomputer (U1);
Described power supply circuits comprise transformer (T), rectifier bridge (ZQ), switching regulator (WY), the first electric capacity (C1) and the second electric capacity (C2);
The alternating voltage of described first power supply accesses the ac input end of rectifier bridge (ZQ) after transformer (T) step-down, the direct voltage that described rectifier bridge (ZQ) exports sends into the input of switching regulator (WY) after the first electric capacity (C1) filtering, the direct voltage that described switching regulator (WY) exports after the second electric capacity (C2) filtering for the single-chip microcomputer (U1) of controller, signal acquisition circuit, executive circuit and communicating circuit are powered;
Described signal acquisition circuit comprises: "on" position testing circuit, gate-dividing state testing circuit, current collection circuit and power-fail detection circuit;
Described "on" position testing circuit comprises:
First voltage-stabiliser tube (D1), the first resistance (R1), the 3rd electric capacity (C3), the first optocoupler (G1) and the first pull-up resistor (Ru1);
The output voltage of described power supply circuits inputs to the first voltage-stabiliser tube (D1) through the auxiliary normally-closed contact of current-limiting resistance (R0) and the first circuit breaker successively, the output voltage of described first voltage-stabiliser tube (D1) inputs to the input of the first optocoupler (G1) through a RC filter, a described RC filter is made up of the first resistance (R1) and the 3rd electric capacity (C3);
The output signal of described first optocoupler (G1) connects the P0.2 end of single-chip microcomputer (U1) after the first pull-up resistor (Ru1) pull-up;
Described gate-dividing state testing circuit comprises:
Second voltage-stabiliser tube (D2), the second resistance (R2), the 4th electric capacity (C4), the second optocoupler (G2) and the second pull-up resistor (Ru2);
The output voltage of described power supply circuits inputs to the second voltage-stabiliser tube (D2) through the auxiliary normally opened contact of current-limiting resistance (R0) and the first circuit breaker successively, the output voltage of described second voltage-stabiliser tube (D2) inputs to the input of the second optocoupler (G2) through the 2nd RC filter, described 2nd RC filter is made up of the second resistance (R2) and the 4th electric capacity (C4);
The output signal of described second optocoupler (G2) connects the P0.3 end of single-chip microcomputer (U1) after the second pull-up resistor (Ru2) pull-up;
Described current collection circuit comprises:
First current transformer (CT1), the second current transformer (CT2), the 3rd resistance (R3), the 4th resistance (R4), the 13 resistance (R13), the 14 resistance (R14), the 5th electric capacity (C5) and the 6th electric capacity (C6);
Described first current transformer (CT1) is connected on the A phase CT of AC power, and its output current connects the P0.0 end of single-chip microcomputer (U1) after the 13 resistance (R13) is converted to voltage signal through the 3rd RC filter; Described 3rd RC filter is made up of the 3rd resistance (R3) and the 5th electric capacity (C5);
Described second current transformer (CT2) is connected on the C phase CT of AC power, and its output current connects the P0.1 end of single-chip microcomputer (U1) after the 14 resistance (R14) is converted to voltage signal through the 4th RC filter; Described 4th RC filter is made up of the 4th resistance (R4) and the 6th electric capacity (C6);
Described power-fail detection circuit comprises:
Bridge rectifier (QZ), the 5th resistance (R5), the 7th electric capacity (C7), the 3rd optocoupler (G3) and the 3rd pull-up resistor (Ru3);
The ac input end of described bridge rectifier (QZ) connects AC power, its direct voltage exported connects the input of the 3rd optocoupler (G3) through the 5th RC filter, described 5th RC filter is made up of the 5th resistance (R5) and the 7th electric capacity (C7);
The output signal of described 3rd optocoupler (G3) connects the P0.4 end of single-chip microcomputer (U1) after the 3rd pull-up resistor (Ru3) pull-up;
Described communicating circuit comprises the 4th optocoupler (G4), the 5th optocoupler (G5) and radio receiving transmitting module (U2);
The RXD mouth of described single-chip microcomputer (U1) is connected with the TXDA mouth of described radio receiving transmitting module (U2) through described 4th optocoupler (G4);
The TXD mouth of described single-chip microcomputer (U1) is connected with the RXDB mouth of described radio receiving transmitting module (U2) through the 5th optocoupler (G5) respectively.
2. device according to claim 1, is characterized in that, described executive circuit comprises contacting controling circuit and sub-gate control circuit;
Described contacting controling circuit comprises triode (Q1), relay (J) and the 6th resistance (R6);
The base stage of described triode (Q1) connects the P0.7 port of single-chip microcomputer (U1) through the 6th resistance (R6), the grounded emitter of described triode (Q1), the collector electrode of described triode (Q1) connects the positive pole of described first power supply through the control coil of relay (J), and the contact of described relay (J) controls the closing coil (HQ) of the first circuit breaker;
Described sub-gate control circuit comprises field effect transistor (Q2), the 6th optocoupler (G6) and the 7th resistance (R7), the input of described 6th optocoupler (G6) connects the P0.6 port of single-chip microcomputer (U1) by the 7th resistance (R7), export the grid of termination field effect transistor (Q2), described field effect transistor (Q2) controls the switching winding (TQ) of the first circuit breaker.
3. device according to claim 2, is characterized in that, also comprises: cold-proof heater;
Described cold-proof heater comprises ptc heater (H) and the temperature switch (Kt) of series connection mutually;
Described temperature switch (Kt) is connected with described first power supply.
4. device according to claim 3, is characterized in that, also comprises: input toggle switch array (SW) and status indicator lamp (LED);
Described input toggle switch array (SW) is all connected with described single-chip microcomputer (U1) with described status indicator lamp (LED).
5. device according to claim 4, is characterized in that, the input of described switching regulator (WY) is provided with bi-directional voltage stabilizing pipe (DW).
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| CN201410135380.XA CN103872760B (en) | 2013-12-31 | 2014-04-04 | Automatic power supply switching control device of transformer |
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| CN201410135380.XA CN103872760B (en) | 2013-12-31 | 2014-04-04 | Automatic power supply switching control device of transformer |
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| CN103872760B true CN103872760B (en) | 2015-03-18 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967206B (en) * | 2015-05-29 | 2018-04-17 | 山西际安电气有限公司 | Colliery low pressure double loop dual power supply permanent magnetism feed interconnection switch operating circuit |
| CN105093922A (en) * | 2015-09-18 | 2015-11-25 | 施耐德万高（天津）电气设备有限公司 | High-power no-arc dual-power switching device |
| CN108233526B (en) * | 2018-01-31 | 2024-03-26 | 德力西电气有限公司 | Power supply management device for frame circuit breaker controller |
| CN108398617A (en) * | 2018-02-12 | 2018-08-14 | 江苏师范大学 | A kind of detection of super-pressure electrical body failure and transmitting device and detection method |
| CN109152184A (en) * | 2018-10-12 | 2019-01-04 | 青岛亿联客信息技术有限公司 | lamp control device and lighting system |
| CN112803575A (en) * | 2019-11-13 | 2021-05-14 | 华为技术有限公司 | Battery replacement control system and battery replacement control method |
| CN112086868B (en) * | 2020-07-23 | 2022-09-20 | 广西电网有限责任公司电力科学研究院 | Outdoor switch box automated complete equipment control circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231565A (en) * | 2011-07-18 | 2011-11-02 | 山西潞安环保能源开发股份有限公司 | Dual power supply local fan integration control system |
| CN102355048A (en) * | 2011-09-19 | 2012-02-15 | 河北工业大学 | Intelligent dual-power automatic transfer switch and running method |
| CN102570586A (en) * | 2011-12-13 | 2012-07-11 | 中国矿业大学(北京) | Automatic controller for dual-power conversion |
| CN102895734A (en) * | 2012-10-30 | 2013-01-30 | 河南工程学院 | Two-path dual-active non-contact power system for cardiac pacemaker |
-
2014
- 2014-04-04 CN CN201410135380.XA patent/CN103872760B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231565A (en) * | 2011-07-18 | 2011-11-02 | 山西潞安环保能源开发股份有限公司 | Dual power supply local fan integration control system |
| CN102355048A (en) * | 2011-09-19 | 2012-02-15 | 河北工业大学 | Intelligent dual-power automatic transfer switch and running method |
| CN102570586A (en) * | 2011-12-13 | 2012-07-11 | 中国矿业大学(北京) | Automatic controller for dual-power conversion |
| CN102895734A (en) * | 2012-10-30 | 2013-01-30 | 河南工程学院 | Two-path dual-active non-contact power system for cardiac pacemaker |
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