CN212321786U

CN212321786U - Simulation circuit breaker

Info

Publication number: CN212321786U
Application number: CN201922129183.8U
Authority: CN
Inventors: 孔吉宏; 李观保; 贺儒飞; 程诗明; 聂航; 蔡朝辉
Original assignee: Peak and Frequency Regulation Power Generation Co of China Southern Power Grid Co Ltd
Current assignee: Peak and Frequency Regulation Power Generation Co of China Southern Power Grid Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2021-01-08
Anticipated expiration: 2029-11-29

Abstract

The utility model provides a simulation circuit breaker, which comprises a power input module, a voltage input module, a relay output module, an MCU module and a display module; the output end of the power input module is electrically connected with the MCU module; the output end of the voltage input module is electrically connected with the MCU module; the MCU module comprises an MCU microprocessor U1 circuit, and the input end of the MCU module is connected with the power input module, the voltage input module and the display module; the output end of the relay is connected with the relay output module and the display module; the input end and the output end of the display module are both connected with the MCU module; and the input end of the relay output module is connected with the MCU module, and the output end of the relay output module is connected with external equipment.

Description

Simulation circuit breaker

Technical Field

The utility model relates to an electrical overhaul field, more specifically relates to a simulation circuit breaker.

Background

The high-voltage circuit breaker, also called high-voltage switch, is a very important node device in the primary loop of the power system, and not only can cut off or close the no-load current and the load current in the high-voltage circuit under the control of the electrical secondary control device, but also can cut off the overload current and the short-circuit current through the action of a relay protection device when the system has a fault.

In the process of operation, transformation or operation maintenance of new equipment, the automatic control equipment and the relay protection device of the electrical secondary system need to perform loop transmission test and whole set of test on the high-voltage circuit breaker to verify the reliability of signals and actions of a control loop and a trip outlet loop so as to ensure the reliability of normal opening and closing and fault tripping of the high-voltage circuit breaker. The opening and closing actions of the high-voltage circuit breaker each time can influence the electrical performance and the mechanical life of the circuit breaker, but in the process of putting the automatic control equipment of the electrical secondary system and the relay protection device into operation, transformation or operation maintenance of new equipment, the opening and closing tests of the high-voltage circuit breaker need to be repeated for many times, and adverse effects can be generated on the high-voltage circuit breaker.

The circuit breaker simulation device is mainly applied to the whole set of tests of automatic control equipment of an electrical secondary system, a relay protection device or a complete set of relay protection screens. The device can truly simulate the switching action characteristics of tripping, closing and the like of the high-voltage circuit breaker, can effectively avoid the adverse effect caused by repeated opening and closing of the circuit breaker due to repeated whole-renting tests, and is particularly suitable for newly-built power plants, transformation of electrical secondary control systems, transformation projects of relay protection and periodic transmission test maintenance. The simulation circuit breaker on the existing market is large in size, inconvenient to move, complex in function, and capable of displaying the action condition of the simulated circuit breaker and seeing the node state visually, and an external power supply is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve among the prior art bulky, remove inconvenient, the function is complicated, needs external power supply, can not show the action condition of the circuit breaker of simulation, can not audio-visually see the not enough of node state, the utility model provides a simulation circuit breaker.

In order to solve the technical problem, the technical scheme of the utility model as follows:

a simulation circuit breaker comprises a power supply input module, a voltage input module, a relay output module, an MCU module and a display module;

the output end of the power input module is electrically connected with the MCU module;

the output end of the voltage input module is electrically connected with the MCU module;

the input end of the MCU module is connected with the power input module, the voltage input module and the display module; the output end of the relay is connected with the relay output module and the display module;

the input end and the output end of the display module are both connected with the MCU module;

and the input end of the relay output module is connected with the MCU module, and the output end of the relay output module is connected with external equipment.

In a preferred scheme, the MCU module includes an MCU microprocessor U1, a resistor R20, a resistor R23, a resistor R24, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a capacitor C1, a capacitor C6, a capacitor C7, a socket P1, and a socket P2; the pin 1 of the MCU microprocessor U1 is connected with one end of a resistor R20 and one end of a capacitor C1, and the other end of the resistor R20 is connected with +5V voltage; a pin 5 of the MCU microprocessor U1 is connected with one end of the capacitor C6, and a pin 6 of the MCU microprocessor U1 is connected with the other end of the capacitor C6; pin 6 and pin 7 of the MCU microprocessor U1 are connected to one end of a capacitor C7 and +5V, and the other end of the capacitor C1, the other end of the capacitor C6, and the other end of the capacitor C7 are grounded; a pin 11, a pin 12, a pin 13, a pin 14, a pin 15 and a pin 16 of the MCU microprocessor U1 are respectively connected in series with one end of a resistor R23, one end of a resistor R24, one end of a resistor R26, one end of a resistor R27, one end of a resistor R28 and one end of a resistor R29, the other end of the resistor R23, the other end of the resistor R24, the other end of the resistor R26, the other end of the resistor R27 and the other end of the resistor R28 are connected with +5V voltage; pin 18, pin 19, pin 20, pin 21, pin 22, and pin 23 of the microprocessor U1 are connected to a JDQ6 signal terminal, a JDQ5 signal terminal, a JDQ4 signal terminal, a JDQ3 signal terminal, a JDQ2 signal terminal, and a JDQ1 signal terminal, respectively; pin 1 of the socket P1 is connected with +5V voltage, pin 2 is connected with pin 26 of the microprocessor U1, pin 3 is connected with pin ground of the microprocessor U1, and pin 4 is connected with pin 1 of the microprocessor U1; pin 1 of the socket P2 is connected with +5V voltage, and pins 2-5 are respectively connected with pin 25, pin 27, pin 28 and pin 29 of the MCU microprocessor U1.

In a preferable scheme, the power input module includes a +5V power supply, a capacitor C2, a capacitor C3, a capacitor C4, and a capacitor C5, wherein an anode of the +5V power supply is connected to one end of the capacitor C2, one end of the capacitor C3, one end of the capacitor C4, and one end of the capacitor C5, and then outputs a +5V voltage, and a cathode of the +5V power supply is connected to the other end of the capacitor C2, the other end of the capacitor C3, the other end of the capacitor C4, and the other end of the capacitor C5, and is grounded.

IN a preferred scheme, the voltage input module comprises an optical coupler GO1, an optical coupler GO2, an optical coupler GO3, an optical coupler GO4, an optical coupler GO5, an optical coupler GO6, a resistor R19, a resistor R21, a resistor R22, a resistor R25, a resistor R30, a resistor R35, a rectifier diode D7, a rectifier diode D8, a rectifier diode D9, a rectifier diode D10, a rectifier diode D11, a rectifier diode D12, a socket IN1, a socket IN2, a socket IN3, a socket IN4, a socket IN5 and a socket IN 6; a pin 1 of the socket IN1 is connected with the anode of a rectifier diode D7, the cathode of a rectifier diode D7 is connected with a pin 1 of an optocoupler GO1, a pin 2 of the socket IN1 is connected with a pin 2 of an optocoupler GO1, a pin 3 of an optocoupler GO1 is connected with the other end of a resistor R19, and a pin 4 of the optocoupler GO1 is grounded; a pin 1 of the socket IN2 is connected with the anode of a rectifier diode D8, the cathode of a rectifier diode D8 is connected with a pin 1 of an optocoupler GO2, a pin 2 of the socket IN2 is connected with a pin 2 of an optocoupler GO2, a pin 3 of an optocoupler GO2 is connected with the other end of a resistor R21, and a pin 4 of the optocoupler GO2 is grounded; a pin 1 of the socket IN3 is connected with the anode of a rectifier diode D9, the cathode of a rectifier diode D9 is connected with a pin 1 of an optocoupler GO3, a pin 2 of the socket IN3 is connected with a pin 2 of an optocoupler GO3, a pin 3 of an optocoupler GO3 is connected with the other end of a resistor R22, and a pin 4 of the optocoupler GO3 is grounded; pin 1 of the socket IN4 is connected with the anode of a rectifier diode D10, the cathode of the rectifier diode D10 is connected with pin 1 of an optical coupler GO4, and pin 2 of the socket IN4 is connected with pin 2 of an optical coupler GO 4; a pin 3 of the optical coupler GO4 is connected with the other end of the resistor R25, and a pin 4 of the optical coupler GO4 is grounded; pin 1 of the socket IN5 is connected with the anode of a rectifier diode D11, the cathode of the rectifier diode D11 is connected with pin 1 of an optical coupler GO5, and pin 2 of the socket IN5 is connected with pin 2 of an optical coupler GO 5; a pin 3 of the optical coupler GO5 is connected with the other end of the resistor R30, and a pin 4 of the optical coupler GO5 is grounded; pin 1 of the socket IN6 is connected with the anode of a rectifier diode D12, the cathode of the rectifier diode D12 is connected with pin 1 of an optical coupler GO6, and pin 2 of the socket IN1 is connected with pin 2 of an optical coupler GO 6; and a pin 3 of the optical coupler GO6 is connected with the other end of the resistor R35, and a pin 4 of the optical coupler GO6 is grounded.

In a preferred scheme, the display module comprises a chip U2, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R37, a resistor R38, a resistor R39, a resistor R40, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a socket P3 and a socket P4; two ends of the capacitor C11 are respectively connected with a pin 1 and a pin 3 of the chip U2, two ends of the capacitor C12 are respectively connected with a pin 4 and a pin 5 of the chip U2, two ends of the capacitor C10 are respectively connected with a pin 6 and a pin 15 of the chip U2, and the pin 15 of the chip U2 is grounded; pin 2 of the chip U2 is connected with one end of a capacitor C9, the other end of the capacitor C9 is connected with a +5V power supply, a pin 16 of the chip U2 and one end of a capacitor C8, and the other end of the power supply C8 is grounded; pin 9 and pin 10 of the chip U2 are respectively connected with pin 31 and pin 30 of the MCU microprocessor U1; a pin 8 of the chip U2 is connected with one end of a resistor R34 and one end of a resistor R39, the other end of the resistor R39 is connected with a pin 31 of an MCU microprocessor U1 after being connected in series with the resistor R40, the other end of the resistor R34 is connected with one end of a resistor R32 and a pin 3 of a socket P3, the other end of the resistor R32 is connected with a pin 31 of the MCU microprocessor U1, a pin 7 of the chip U2 is connected with one end of the resistor R33 and one end of a resistor R37, and the other end of the resistor R37 is connected with a resistor R38 and then is connected with a pin 30 of the MCU microprocessor U1; the other end of the resistor R33 is connected with one end of a resistor R31 and a pin 2 of a socket P3, and the other end of the resistor R31 is connected with a pin 30 of an MCU microprocessor U1; the pins 1-3 of the socket P4 are grounded, and the

pins

5 and 6 are respectively connected between the resistor R39 and the resistor R40 and between the resistor R37 and the resistor R38. Preferably, the model of the chip U2 is a level conversion chip, and the model is MAX 232.

In a preferred embodiment, the relay output module includes a light emitting diode LED1, a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, a light emitting diode LED6, a rectifier diode D1, a rectifier diode D2, a rectifier diode D3, a rectifier diode D4, a rectifier diode D5, a rectifier diode D6, a transistor Q1, a transistor Q2, a transistor Q3, a transistor Q4, a resistor R36q 72, a jd36q relay, a relay Q4, a relay R4, a relay Q4, a relay Q4, a;

one end of a resistor R7 is connected with a pin 23 of the MCU microprocessor U1, the other end of a resistor R7 is connected with one end of a resistor R13, the base electrode of a triode Q1, the other end of the resistor R13 and the emitter electrode of a triode Q1 are grounded, the cathode of a light-emitting diode LED1, the anode of a rectifier diode D1 and one end of a relay JDQ1 coil are connected, the anode of the light-emitting diode LED1 is connected with one end of a resistor R1, and the other end of the resistor R1, the cathode of a rectifier diode D1 and the other end of the relay JDQ1 coil are connected with +5V voltage; six terminals of coil control switches K1 and K1 of the relay JDQ1 are connected with a six-pin socket, wherein an NC1 terminal, a COM1 terminal, NO1 terminal socket pins 1-3, an NC2 terminal, a COM2 terminal and NO2 terminal socket pins 4-6;

one end of a resistor R8 is connected with a pin 22 of the MCU microprocessor U1, the other end of a resistor R8 is connected with one end of a resistor R14, the base electrode of a triode Q2, the other end of the resistor R14 and the emitter electrode of a triode Q2 are grounded, the cathode of a light-emitting diode LED2, the anode of a rectifier diode D2 and one end of a relay JDQ2 coil are connected, the anode of the light-emitting diode LED2 is connected with one end of a resistor R2, and the other end of the resistor R2, the cathode of a rectifier diode D2 and the other end of the relay JDQ2 coil are connected with +5V voltage; six terminals of coil control switches K2 and K2 of the relay JDQ2 are connected with a six-pin socket, wherein an NC3 terminal, a COM3 terminal, NO3 terminal socket pins 1-3, an NC4 terminal, a COM4 terminal and NO4 terminal socket pins 4-6;

one end of a resistor R9 is connected with a pin 21 of the MCU microprocessor U1, the other end of a resistor R9 is connected with one end of a resistor R15, the base electrode of a triode Q3, the other end of the resistor R15 and the emitter electrode of a triode Q3 are grounded, the cathode of a light-emitting diode LED3, the anode of a rectifier diode D3 and one end of a relay JDQ3 coil are connected, the anode of the light-emitting diode LED3 is connected with one end of a resistor R3, and the other end of the resistor R3, the cathode of a rectifier diode D3 and the other end of the relay JDQ3 coil are connected with +5V voltage; six terminals of coil control switches K3 and K3 of the relay JDQ3 are connected with a six-pin socket, wherein an NC5 terminal, a COM5 terminal, NO5 terminal socket pins 1-3, an NC6 terminal, a COM6 terminal and NO6 terminal socket pins 4-6;

one end of a resistor R10 is connected with a pin 20 of the MCU microprocessor U1, the other end of a resistor R10 is connected with one end of a resistor R16, the base electrode of a triode Q4, the other end of the resistor R16 and the emitter electrode of a triode Q4 are grounded, the cathode of a light-emitting diode LED4, the anode of a rectifier diode D4 and one end of a relay JDQ4 coil are connected, the anode of the light-emitting diode LED4 is connected with one end of a resistor R4, and the other end of the resistor R4, the cathode of a rectifier diode D4 and the other end of the relay JDQ4 coil are connected with +5V voltage; six terminals of coil control switches K4 and K4 of the relay JDQ4 are connected with a six-pin socket, wherein an NC7 terminal, a COM7 terminal, NO7 terminal socket pins 1-3, an NC8 terminal, a COM8 terminal and NO8 terminal socket pins 4-6;

one end of a resistor R11 is connected with a pin 19 of the MCU microprocessor U1, the other end of a resistor R11 is connected with one end of a resistor R17, the base electrode of a triode Q5, the other end of the resistor R17 and the emitter electrode of a triode Q5 are grounded, the cathode of a light-emitting diode LED5, the anode of a rectifier diode D5 and one end of a relay JDQ5 coil are connected, the anode of the light-emitting diode LED5 is connected with one end of a resistor R5, and the other end of the resistor R5, the cathode of a rectifier diode D5 and the other end of the relay JDQ5 coil are connected with +5V voltage; six terminals of coil control switches K5 and K5 of the relay JDQ5 are connected with a six-pin socket, wherein an NC9 terminal, a COM9 terminal, NO9 terminal socket pins 1-3, an NC10 terminal, a COM10 terminal and NO10 terminal socket pins 4-6;

one end of a resistor R12 is connected with a pin 18 of the MCU microprocessor U1, the other end of a resistor R11 is connected with one end of a resistor R18, the base electrode of a triode Q6, the other end of the resistor R18 and the emitter electrode of a triode Q6 are grounded, the cathode of a light-emitting diode LED6, the anode of a rectifier diode D6 and one end of a relay JDQ6 coil are connected, the anode of the light-emitting diode LED6 is connected with one end of a resistor R6, and the other end of the resistor R6, the cathode of a rectifier diode D6 and the other end of the relay JDQ6 coil are connected with +5V voltage; six terminals of coil control switches K6 and K6 of the relay JDQ6 are connected with a six-pin socket, wherein an NC11 terminal, a COM11 terminal, NO11 terminal socket pins 1-3, an NC12 terminal, a COM12 terminal and NO12 terminal socket pins 4-6.

In a preferred scheme, the device further comprises a buzzer module, wherein the buzzer module comprises a buzzer BEEP, a triode Q7, a resistor R41 and a resistor R42; one end of the buzzer is connected with +5V voltage, the other end of the buzzer is connected with a collector of a triode Q7, a base of the triode Q7 is connected with one end of a resistor R41 and one end of a resistor R42, the other end of the resistor R42 is grounded, and the other end of the resistor R41 is connected with a pin 32 of an MCU microprocessor U1.

In a preferred scheme, the device also comprises an operation indicator lamp, a light-emitting diode LED7 and a resistor R36; one end of the resistor R36 is connected with +5V voltage, the other end is connected with the anode of the LED7, and the cathode of the LED7 is grounded.

In a preferred scheme, the device further comprises a shell, wherein a socket of the voltage input module, a socket of the relay output module, a work indicator lamp of each relay and a charging socket are sequentially arranged on the outer wall of the shell.

In a preferred scheme, the shell further comprises a neodymium iron boron magnet which is embedded in the outer wall of the shell.

Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:

the utility model provides a simulation circuit breaker simplifies traditional simulation circuit breaker's inner structure, reduces the volume, and portable, and the not enough of node state is seen to the action condition of the circuit breaker that can direct-viewing display simulates, satisfies the functional demand of different occasions.

Drawings

Fig. 1 is a schematic block diagram of a circuit breaker simulator provided in the present invention;

FIG. 2 is a schematic circuit diagram of an MCU module in the analog crowbar in embodiment 2;

FIG. 3 is a schematic circuit diagram of a power input block in the analog crowbar in embodiment 2;

FIG. 4 is a schematic circuit diagram of a voltage input block in the analog crowbar in embodiment 2;

FIG. 5 is a schematic circuit diagram of a display module in the analog crowbar in embodiment 2;

FIG. 6 is a schematic circuit diagram of an output module of the relay of the analog short-circuiting device in embodiment 2;

FIG. 7 is a schematic circuit diagram of a buzzer module in the simulated crowbar in embodiment 2;

fig. 8 is a schematic circuit diagram of the operation indicating lamp in the simulated crowbar in embodiment 2.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent;

for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;

it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Example 1

A simulation circuit breaker is shown in figure 1 and comprises a power supply input module 1, a voltage input module 2, a relay output module 5, an MCU module 3 and a display module 4;

the output end of the power input module 1 is electrically connected with the MCU module 3;

the output end of the voltage input module 2 is electrically connected with the MCU module 3;

the input end of the MCU module 3 is connected with the power input module 1, the voltage input module 2 and the display module 4; the output end of the power supply is connected with the relay output module 5 and the display module 4;

the input end and the output end of the display module 4 are both connected with the MCU module 3;

and the input end of the relay output module 5 is connected with the MCU module 3, and the output end of the relay output module is connected with external equipment.

The module uses an STM8S105 type MCU, and through detecting the conduction high potential of an input loop, internal program logic control, the corresponding output loop outputs the high potential to control a corresponding relay, so that the output loop is formed to be conducted. A pin 1 in the MCU is used for data homing, when NRST inputs low level, the MCU is in a reset state, and all internal registers are reset; 7. pin 9 supplies power to DC 5V; the pin 5 is a VCAP pin, is used for filtering the power supply voltage of the kernel and is externally connected with a capacitor C2 to the ground, so that the voltage stability of the internal main voltage regulator is ensured; the pins 10-16 are input signal acquisition pins, and when the IN 1-IN 6 detect 48-220 VDC level signals, the signals are transmitted into the MCU through the optical couplers GO 1-GO 6; the 26 pin SWIM provides the MCU data transfer interface, and VCC provides + DC 5V.

JDQs 1-6 in the module are control power supplies for controlling the output relay, and VCC is + DC5V for supplying power; R7-R12 are current-limiting resistors; R13-R18 are pull-up resistors, and the uncertain signals are clamped at a high level through a resistor, and the resistor plays a role in current limiting at the same time.

Example 2

A simulation circuit breaker comprises a power input module 1, a voltage input module 2, a relay output module 5, an MCU module 3 and a display module 4;

In a preferred scheme, as shown in fig. 2, the MCU module 3 includes an MCU microprocessor U1, a resistor R20, a resistor R23, a resistor R24, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a capacitor C1, a capacitor C6, a capacitor C7, a socket P1, and a socket P2; the pin 1 of the MCU microprocessor U1 is connected with one end of a resistor R20 and one end of a capacitor C1, and the other end of the resistor R20 is connected with +5V voltage; a pin 5 of the MCU microprocessor U1 is connected with one end of the capacitor C6, and a pin 6 of the MCU microprocessor U1 is connected with the other end of the capacitor C6; pin 6 and pin 7 of the MCU microprocessor U1 are connected to one end of a capacitor C7 and +5V, and the other end of the capacitor C1, the other end of the capacitor C6, and the other end of the capacitor C7 are grounded; a pin 11, a pin 12, a pin 13, a pin 14, a pin 15 and a pin 16 of the MCU microprocessor U1 are respectively connected in series with one end of a resistor R23, one end of a resistor R24, one end of a resistor R26, one end of a resistor R27, one end of a resistor R28 and one end of a resistor R29, the other end of the resistor R23, the other end of the resistor R24, the other end of the resistor R26, the other end of the resistor R27 and the other end of the resistor R28 are connected with +5V voltage; pin 18, pin 19, pin 20, pin 21, pin 22, and pin 23 of the microprocessor U1 are connected to a JDQ6 signal terminal, a JDQ5 signal terminal, a JDQ4 signal terminal, a JDQ3 signal terminal, a JDQ2 signal terminal, and a JDQ1 signal terminal, respectively; pin 1 of the socket P1 is connected with +5V voltage, pin 2 is connected with pin 26 of the microprocessor U1, pin 3 is connected with pin ground of the microprocessor U1, and pin 4 is connected with pin 1 of the microprocessor U1; pin 1 of the socket P2 is connected with +5V voltage, and pins 2-5 are respectively connected with pin 25, pin 27, pin 28 and pin 29 of the MCU microprocessor U1. The microprocessor U1 is of the type STM8S 105.

In a preferred embodiment, as shown in fig. 3, the power input module 1 includes a +5V power supply, a capacitor C2, a capacitor C3, a capacitor C4, and a capacitor C5, wherein an anode of the +5V power supply is connected to one end of the capacitor C2, one end of the capacitor C3, one end of the capacitor C4, and one end of the capacitor C5, and then outputs a +5V voltage, and a cathode of the +5V power supply is connected to the other end of the capacitor C2, the other end of the capacitor C3, the other end of the capacitor C4, and the other end of the capacitor C5, and is grounded.

IN a preferred scheme, as shown IN fig. 4, the voltage input module 2 includes an optical coupler GO1, an optical coupler GO2, an optical coupler GO3, an optical coupler GO4, an optical coupler GO5, an optical coupler GO6, a resistor R19, a resistor R21, a resistor R22, a resistor R25, a resistor R30, a resistor R35, a rectifier diode D7, a rectifier diode D8, a rectifier diode D9, a rectifier diode D10, a rectifier diode D11, a rectifier diode D12, a socket IN1, a socket IN2, a socket IN3, a socket IN4, a socket IN5, and a socket IN 6; a pin 1 of the socket IN1 is connected with the anode of a rectifier diode D7, the cathode of a rectifier diode D7 is connected with a pin 1 of an optocoupler GO1, a pin 2 of the socket IN1 is connected with a pin 2 of an optocoupler GO1, a pin 3 of an optocoupler GO1 is connected with the other end of a resistor R19, and a pin 4 of the optocoupler GO1 is grounded; a pin 1 of the socket IN2 is connected with the anode of a rectifier diode D8, the cathode of a rectifier diode D8 is connected with a pin 1 of an optocoupler GO2, a pin 2 of the socket IN2 is connected with a pin 2 of an optocoupler GO2, a pin 3 of an optocoupler GO2 is connected with the other end of a resistor R21, and a pin 4 of the optocoupler GO2 is grounded; a pin 1 of the socket IN3 is connected with the anode of a rectifier diode D9, the cathode of a rectifier diode D9 is connected with a pin 1 of an optocoupler GO3, a pin 2 of the socket IN3 is connected with a pin 2 of an optocoupler GO3, a pin 3 of an optocoupler GO3 is connected with the other end of a resistor R22, and a pin 4 of the optocoupler GO3 is grounded; pin 1 of the socket IN4 is connected with the anode of a rectifier diode D10, the cathode of the rectifier diode D10 is connected with pin 1 of an optical coupler GO4, and pin 2 of the socket IN4 is connected with pin 2 of an optical coupler GO 4; a pin 3 of the optical coupler GO4 is connected with the other end of the resistor R25, and a pin 4 of the optical coupler GO4 is grounded; pin 1 of the socket IN5 is connected with the anode of a rectifier diode D11, the cathode of the rectifier diode D11 is connected with pin 1 of an optical coupler GO5, and pin 2 of the socket IN5 is connected with pin 2 of an optical coupler GO 5; a pin 3 of the optical coupler GO5 is connected with the other end of the resistor R30, and a pin 4 of the optical coupler GO5 is grounded; pin 1 of the socket IN6 is connected with the anode of a rectifier diode D12, the cathode of the rectifier diode D12 is connected with pin 1 of an optical coupler GO6, and pin 2 of the socket IN1 is connected with pin 2 of an optical coupler GO 6; and a pin 3 of the optical coupler GO6 is connected with the other end of the resistor R35, and a pin 4 of the optical coupler GO6 is grounded.

In a preferred embodiment, as shown in fig. 5, the display module 4 includes a chip U2, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R37, a resistor R38, a resistor R39, a resistor R40, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a socket P3, and a socket P4; two ends of the capacitor C11 are respectively connected with a pin 1 and a pin 3 of the chip U2, two ends of the capacitor C12 are respectively connected with a pin 4 and a pin 5 of the chip U2, two ends of the capacitor C10 are respectively connected with a pin 6 and a pin 15 of the chip U2, and the pin 15 of the chip U2 is grounded; pin 2 of the chip U2 is connected with one end of a capacitor C9, the other end of the capacitor C9 is connected with a +5V power supply, a pin 16 of the chip U2 and one end of a capacitor C8, and the other end of the power supply C8 is grounded; pin 9 and pin 10 of the chip U2 are respectively connected with pin 31 and pin 30 of the MCU microprocessor U1; a pin 8 of the chip U2 is connected with one end of a resistor R34 and one end of a resistor R39, the other end of the resistor R39 is connected with a pin 31 of an MCU microprocessor U1 after being connected in series with the resistor R40, the other end of the resistor R34 is connected with one end of a resistor R32 and a pin 3 of a socket P3, the other end of the resistor R32 is connected with a pin 31 of the MCU microprocessor U1, a pin 7 of the chip U2 is connected with one end of the resistor R33 and one end of a resistor R37, and the other end of the resistor R37 is connected with a resistor R38 and then is connected with a pin 30 of the MCU microprocessor U1; the other end of the resistor R33 is connected with one end of a resistor R31 and a pin 2 of a socket P3, and the other end of the resistor R31 is connected with a pin 30 of an MCU microprocessor U1; the pins 1-3 of the socket P4 are grounded, and the pins 5 and 6 are respectively connected between the resistor R39 and the resistor R40 and between the resistor R37 and the resistor R38.

In a preferred embodiment, as shown in fig. 6, the relay output module 5 includes a light emitting diode LED1, a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, a light emitting diode LED6, a rectifier diode D1, a rectifier diode D2, a rectifier diode D3, a rectifier diode D4, a rectifier diode D5, a rectifier diode D6, a transistor Q1, a transistor Q2, a transistor Q3, a transistor Q4, a resistor R4, a jd36q 72, a relay jd3672, a relay Q4, a relay R4, a relay Q4, a relay Q4, a relay Q36;

In a preferred scheme, the device further comprises a buzzer module, as shown in fig. 7, which comprises a buzzer BEEP, a triode Q7, a resistor R41, a resistor R42; one end of the buzzer is connected with +5V voltage, the other end of the buzzer is connected with a collector of a triode Q7, a base of the triode Q7 is connected with one end of a resistor R41 and one end of a resistor R42, the other end of the resistor R42 is grounded, and the other end of the resistor R41 is connected with a pin 32 of an MCU microprocessor U1.

In a preferred scheme, the device also comprises an operation indicator light, as shown in fig. 8, and the operation indicator light comprises a resistor R36, a light-emitting diode LED 7; one end of the resistor R36 is connected with +5V voltage, the other end is connected with the anode of the LED7, and the cathode of the LED7 is grounded.

In a preferred scheme, the device further comprises a shell, wherein a socket of the voltage input module 2, a socket of the relay output module 5, a work indicator lamp of each relay and a charging socket are sequentially arranged on the outer wall of the shell.

Example 3

As shown in fig. 3, in the field application of the adsorption-type touch simulation circuit breaker, the simulation unit and the relay protection tester are matched with each other, so that a complete set of field test system for the electrical secondary control device or the relay protection screen can be formed. On the premise of not operating the real circuit breaker, the response of the control panel or the protection panel to the voltage and current abnormal signal and the fault signal is tested, and the control panel or the protection panel outputs the execution state of the protection action of the circuit breaker. In the test process, the circuit breaker simulation unit responds to a control signal from the control screen or the protection screen and feeds back a tripping and closing action signal to the relay protection tester to complete a series of test processes. The system can truly simulate the whole electrical control or relay protection process and effectively avoid repeated actions of a real breaker.

The terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;

it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The analog circuit breaker is characterized by comprising a power input module (1), a voltage input module (2), an MCU module (3), a display module (4) and a relay output module (5);

the output end of the power input module (1) is electrically connected with the MCU module (3);

the output end of the voltage input module (2) is electrically connected with the MCU module (3);

the input end of the MCU module (3) is connected with the power input module (1), the voltage input module (2) and the display module (4); the output end of the power supply is connected with the relay output module (5) and the display module (4);

the input end and the output end of the display module (4) are both connected with the MCU module (3);

and the input end of the relay output module (5) is connected with the MCU module (3), and the output end of the relay output module is connected with external equipment.

2. The analog circuit breaker of claim 1, wherein the MCU module (3) comprises an MCU microprocessor U1, a resistor R20, a resistor R23, a resistor R24, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a capacitor C1, a capacitor C6, a capacitor C7, a socket P1, a socket P2; the pin 1 of the MCU microprocessor U1 is connected with one end of a resistor R20 and one end of a capacitor C1, and the other end of the resistor R20 is connected with +5V voltage; a pin 5 of the MCU microprocessor U1 is connected with one end of the capacitor C6, and a pin 6 of the MCU microprocessor U1 is connected with the other end of the capacitor C6; pin 6 and pin 7 of the MCU microprocessor U1 are connected to one end of a capacitor C7 and +5V, and the other end of the capacitor C1, the other end of the capacitor C6, and the other end of the capacitor C7 are grounded; a pin 11, a pin 12, a pin 13, a pin 14, a pin 15 and a pin 16 of the MCU microprocessor U1 are respectively connected in series with one end of a resistor R23, one end of a resistor R24, one end of a resistor R26, one end of a resistor R27, one end of a resistor R28 and one end of a resistor R29, the other end of the resistor R23, the other end of the resistor R24, the other end of the resistor R26, the other end of the resistor R27 and the other end of the resistor R28 are connected with +5V voltage; pin 18, pin 19, pin 20, pin 21, pin 22, and pin 23 of the microprocessor U1 are connected to a JDQ6 signal terminal, a JDQ5 signal terminal, a JDQ4 signal terminal, a JDQ3 signal terminal, a JDQ2 signal terminal, and a JDQ1 signal terminal, respectively; pin 1 of the socket P1 is connected with +5V voltage, pin 2 is connected with pin 26 of the microprocessor U1, pin 3 is connected with pin ground of the microprocessor U1, and pin 4 is connected with pin 1 of the microprocessor U1; pin 1 of the socket P2 is connected with +5V voltage, and pins 2-5 are respectively connected with pin 25, pin 27, pin 28 and pin 29 of the MCU microprocessor U1.

3. The analog circuit breaker as claimed in claim 2, wherein the power input module (1) comprises a +5V power supply, a capacitor C2, a capacitor C3, a capacitor C4 and a capacitor C5, wherein the positive terminal of the +5V power supply is connected to one terminal of the capacitor C2, one terminal of the capacitor C3, one terminal of the capacitor C4 and one terminal of the capacitor C5, and then outputs a +5V voltage, and the negative terminal of the +5V power supply is connected to the other terminal of the capacitor C2, the other terminal of the capacitor C3, the other terminal of the capacitor C4 and the other terminal of the capacitor C5, and is grounded.

4. An analog circuit breaker according to claim 2, characterized IN that the voltage input module (2) comprises an optical coupler GO1, an optical coupler GO2, an optical coupler GO3, an optical coupler GO4, an optical coupler GO5, an optical coupler GO6, a resistor R19, a resistor R21, a resistor R22, a resistor R25, a resistor R30, a resistor R35, a rectifier diode D7, a rectifier diode D8, a rectifier diode D9, a rectifier diode D10, a rectifier diode D11, a rectifier diode D12, a socket IN1, a socket IN2, a socket IN3, a socket IN4, a socket IN5, a socket IN 6; a pin 1 of the socket IN1 is connected with the anode of a rectifier diode D7, the cathode of a rectifier diode D7 is connected with a pin 1 of an optocoupler GO1, a pin 2 of the socket IN1 is connected with a pin 2 of an optocoupler GO1, a pin 3 of an optocoupler GO1 is connected with the other end of a resistor R19, and a pin 4 of the optocoupler GO1 is grounded; a pin 1 of the socket IN2 is connected with the anode of a rectifier diode D8, the cathode of a rectifier diode D8 is connected with a pin 1 of an optocoupler GO2, a pin 2 of the socket IN2 is connected with a pin 2 of an optocoupler GO2, a pin 3 of an optocoupler GO2 is connected with the other end of a resistor R21, and a pin 4 of the optocoupler GO2 is grounded; a pin 1 of the socket IN3 is connected with the anode of a rectifier diode D9, the cathode of a rectifier diode D9 is connected with a pin 1 of an optocoupler GO3, a pin 2 of the socket IN3 is connected with a pin 2 of an optocoupler GO3, a pin 3 of an optocoupler GO3 is connected with the other end of a resistor R22, and a pin 4 of the optocoupler GO3 is grounded; pin 1 of the socket IN4 is connected with the anode of a rectifier diode D10, the cathode of the rectifier diode D10 is connected with pin 1 of an optical coupler GO4, and pin 2 of the socket IN4 is connected with pin 2 of an optical coupler GO 4; a pin 3 of the optical coupler GO4 is connected with the other end of the resistor R25, and a pin 4 of the optical coupler GO4 is grounded; pin 1 of the socket IN5 is connected with the anode of a rectifier diode D11, the cathode of the rectifier diode D11 is connected with pin 1 of an optical coupler GO5, and pin 2 of the socket IN5 is connected with pin 2 of an optical coupler GO 5; a pin 3 of the optical coupler GO5 is connected with the other end of the resistor R30, and a pin 4 of the optical coupler GO5 is grounded; pin 1 of the socket IN6 is connected with the anode of a rectifier diode D12, the cathode of the rectifier diode D12 is connected with pin 1 of an optical coupler GO6, and pin 2 of the socket IN1 is connected with pin 2 of an optical coupler GO 6; and a pin 3 of the optical coupler GO6 is connected with the other end of the resistor R35, and a pin 4 of the optical coupler GO6 is grounded.

5. The analog circuit breaker as claimed in claim 2, wherein said display module (4) comprises a chip U2, a resistor R31, a resistor R32, a resistor R33, a resistor R34, a resistor R37, a resistor R38, a resistor R39, a resistor R40, a capacitor C9, a capacitor C10, a capacitor C11, a capacitor C12, a socket P3, a socket P4; two ends of the capacitor C11 are respectively connected with a pin 1 and a pin 3 of the chip U2, two ends of the capacitor C12 are respectively connected with a pin 4 and a pin 5 of the chip U2, two ends of the capacitor C10 are respectively connected with a pin 6 and a pin 15 of the chip U2, and the pin 15 of the chip U2 is grounded; pin 2 of the chip U2 is connected with one end of a capacitor C9, the other end of the capacitor C9 is connected with a +5V power supply, a pin 16 of the chip U2 and one end of a capacitor C8, and the other end of the power supply C8 is grounded; pin 9 and pin 10 of the chip U2 are respectively connected with pin 31 and pin 30 of the MCU microprocessor U1; a pin 8 of the chip U2 is connected with one end of a resistor R34 and one end of a resistor R39, the other end of the resistor R39 is connected with a pin 31 of an MCU microprocessor U1 after being connected in series with the resistor R40, the other end of the resistor R34 is connected with one end of a resistor R32 and a pin 3 of a socket P3, the other end of the resistor R32 is connected with a pin 31 of the MCU microprocessor U1, a pin 7 of the chip U2 is connected with one end of the resistor R33 and one end of a resistor R37, and the other end of the resistor R37 is connected with a resistor R38 and then is connected with a pin 30 of the MCU microprocessor U1; the other end of the resistor R33 is connected with one end of a resistor R31 and a pin 2 of a socket P3, and the other end of the resistor R31 is connected with a pin 30 of an MCU microprocessor U1; the pins 1-3 of the socket P4 are grounded, and the pins 5 and 6 are respectively connected between the resistor R39 and the resistor R40 and between the resistor R37 and the resistor R38.

6. The analog circuit breaker of claim 2, the relay output module (5) comprises a light emitting diode LED1, a light emitting diode LED2, a light emitting diode LED3, a light emitting diode LED4, a light emitting diode LED5, a light emitting diode LED6, a rectifier diode D1, a rectifier diode D2, a rectifier diode D3, a rectifier diode D4, a rectifier diode D5, a rectifier diode D6, a triode Q1, a triode Q2, a triode Q3, a triode Q4, a resistor R4, a relay Q JDQ4, a JDJDQ 4, a relay Q363672, a relay Q4;

7. The analog circuit breaker of claim 2, further comprising a buzzer module including a buzzer BEEP, a transistor Q7, a resistor R41, a resistor R42; one end of the buzzer is connected with +5V voltage, the other end of the buzzer is connected with a collector of a triode Q7, a base of the triode Q7 is connected with one end of a resistor R41 and one end of a resistor R42, the other end of the resistor R42 is grounded, and the other end of the resistor R41 is connected with a pin 32 of an MCU microprocessor U1.

8. The analog circuit breaker of claim 2, further comprising an operation indicator including a resistor R36, a light emitting diode LED 7; one end of the resistor R36 is connected with +5V voltage, the other end is connected with the anode of the LED7, and the cathode of the LED7 is grounded.

9. The analog circuit breaker according to any one of claims 1-6, characterized in that it further comprises a housing, and the outer wall of the housing is provided with a socket of the voltage input module (2), a socket of the relay output module (5), an operation indicator light of each relay, and a charging socket in sequence.

10. The analog circuit breaker of claim 9, wherein the housing further comprises a neodymium iron boron magnet embedded in an outer wall of the housing.