CN216117803U - Low-cycle deloading device tripping outlet and matrix constant value rapid verification device - Google Patents

Low-cycle deloading device tripping outlet and matrix constant value rapid verification device Download PDF

Info

Publication number
CN216117803U
CN216117803U CN202122712926.1U CN202122712926U CN216117803U CN 216117803 U CN216117803 U CN 216117803U CN 202122712926 U CN202122712926 U CN 202122712926U CN 216117803 U CN216117803 U CN 216117803U
Authority
CN
China
Prior art keywords
detection
detection circuit
signal
module
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202122712926.1U
Other languages
Chinese (zh)
Inventor
付凯朋
石璧
周丰
宋星
邹连松
彭澄宇
邓俊宇
郭华
刘绍磊
蔡婧文
吴臻杰
刘奕君
李新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Xiangtan Power Supply Co of State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Hunan Electric Power Co Ltd
Xiangtan Power Supply Co of State Grid Hunan Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, State Grid Hunan Electric Power Co Ltd, Xiangtan Power Supply Co of State Grid Hunan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202122712926.1U priority Critical patent/CN216117803U/en
Application granted granted Critical
Publication of CN216117803U publication Critical patent/CN216117803U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

The utility model discloses a low-cycle deloading device trip outlet and matrix constant value rapid verification device, which comprises a power module, a detection module, a control module and a display module, wherein the power module is used for supplying power to the low-cycle deloading device; the power supply module supplies power; the control module is respectively connected with the detection module and the display module; the detection module acquires an external pulse sampling signal and generates a pulse buffering signal by adopting the voltage follower, the detection module outputs the pulse buffering signal to the control module, and the control module performs data processing and outputs data to the display module for display. The utility model simplifies the testing process, shortens the checking time, reduces the labor intensity and avoids the errors caused by inaccurate measurement and manual accounting of the multimeter. Meanwhile, the voltage follower is adopted, the direct current system in the station cannot be interfered, the pulse small signal is transmitted to the controller board to be identified and processed, and the testing efficiency and the testing accuracy are improved. In the test, the action branch circuit can be confirmed only by checking with the data of the display screen, so that the tripping branch circuit can be conveniently identified.

Description

Low-cycle deloading device tripping outlet and matrix constant value rapid verification device
Technical Field
The utility model particularly relates to a low-cycle deloading device trip outlet and matrix constant value rapid verification device.
Background
The low-cycle load reduction device is a protection device commonly used for monitoring system frequency in a transformer substation. For the verification of the tripping matrix and the fixed value of the low-cycle load shedding device, most of the conventional relay protection devices for the transformer substation are displayed in the form of a nixie tube or an Led indicator lamp after simple logic judgment is carried out on an action outlet, the single comparison between the matrix fixed value and the fixed value cannot be carried out, and the quantity of the tripping outlet branches is verified to be limited. At present, the outlet matrix calibration work of the low-cycle load shedding device in the transformer substation still needs the calibration of one outlet after another, along with the development of regional economy, 10kV outgoing lines in the transformer substation are increasingly increased, more and more tripping branches are connected to the low-cycle load shedding device, and the number of the common tripping branches is counted to be more than 20. The multiple branches are used, the conventional processes of line changing, adding, waiting for device action, potential measurement by a multimeter and outlet number recording are performed in sequence in each check, time and labor are wasted, and an outlet matrix is easy to calculate wrongly; and the duration of each outlet direct current pulse is about between 100 and 200ms, the time is too short, the multimeter is difficult to measure the value, repeated measurement is needed, and a great deal of energy is consumed by operators. The low-frequency load shedding device is generally checked without power failure, the risk is high, if a relay protection instrument is used for checking, a large number of secondary lines need to be disconnected, dozens of secondary safety measures are executed, and because tripping branches are too many, the protection instrument cannot simultaneously detect all branches, the efficiency is too low, and even the power utilization safety of customers is influenced. Meanwhile, the low-cycle load shedding device is different from other protection devices of the transformer substation, and is mainly characterized in that: 1. the tripping outlet has more than dozens of branches, each branch trips simultaneously according to a setting value during protection action, and the matrix setting and verification are complex; 2. the low-cycle setting value check work is carried out according to the latest setting value list issued by a control center every year, and the working intensity is high; 3. the outlet matrix is checked without power failure, so that the risk is high and the switch is easy to jump by mistake.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an accurate and efficient low-cycle deloading device trip outlet and matrix constant value rapid verification device.
The utility model provides a trip outlet and matrix constant value rapid verification device of a low-cycle load shedding device, which comprises a power module, a detection module, a control module and a display module; the power supply module supplies power to the tripping outlet of the low-cycle load shedding device and the matrix constant value rapid verification device; the control module is respectively connected with the detection module and the display module; the detection module acquires an external pulse sampling signal and generates a pulse buffer signal by adopting a voltage follower, the detection module outputs the pulse buffer signal to the control module, and the control module performs trip matrix setting fixed value verification and outputs the matrix setting fixed value to the display module for display.
The power supply module comprises a voltage stabilizing chip with the model of LM1117 and a mobile power supply; the mobile power supply is connected with the voltage stabilizing chip and outputs a DC signal through a USB interface of the DC socket; the voltage stabilizing chip converts the DC signal into +5V power supply.
The detection module comprises a plurality of detection circuits; the detection circuit comprises a first voltage division resistor, a second voltage division resistor and an operational amplifier; one end of the first voltage-dividing resistor is connected with a detection signal, and the other end of the first voltage-dividing resistor is connected with the positive-phase input end of the detection operational amplifier; one end of the detection second voltage-dividing resistor is connected with the positive phase input end of the detection operational amplifier, and the other end of the detection second voltage-dividing resistor is grounded; detecting a first voltage dividing resistor and detecting a second voltage dividing resistor for voltage division; the inverting input end of the detection operational amplifier is connected with the output end of the detection operational amplifier; the power supply input end of the detection operational amplifier is connected with the power supply module, and the grounding end of the detection operational amplifier is grounded; the first operational amplifier is used for voltage following, and the acquired detection signal is buffered into a buffer signal through the voltage follower.
The detection module comprises a first detection circuit, a second detection circuit, a third detection circuit, a fourth detection circuit, a fifth detection circuit, a sixth detection circuit, a seventh detection circuit, an eighth detection circuit, a ninth detection circuit, a tenth detection circuit, an eleventh detection circuit, a twelfth detection circuit, a thirteenth detection circuit, a fourteenth detection circuit, a fifteenth detection circuit and a sixteenth detection circuit; the circuit connection modes of the first detection circuit, the second detection circuit, the third detection circuit, the fourth detection circuit, the fifth detection circuit, the sixth detection circuit, the seventh detection circuit, the eighth detection circuit, the ninth detection circuit, the tenth detection circuit, the eleventh detection circuit, the twelfth detection circuit, the thirteenth detection circuit, the fourteenth detection circuit, the fifteenth detection circuit and the sixteenth detection circuit are the same; the first detection circuit buffers the acquired first detection signal into a first buffer signal through a voltage follower; the second detection circuit buffers the acquired second detection signal into a second buffer signal through the voltage follower; the third detection circuit buffers the acquired third detection signal into a third buffer signal through the voltage follower; the fourth detection circuit buffers the acquired fourth detection signal into a fourth buffer signal through the voltage follower; the fifth detection circuit buffers the acquired fifth detection signal into a fifth buffer signal through the voltage follower; the sixth detection circuit buffers the acquired sixth detection signal into a sixth buffer signal through the voltage follower; the seventh detection circuit buffers the acquired seventh detection signal into a seventh buffer signal through the voltage follower; the eighth detection circuit buffers the acquired eighth detection signal into an eighth buffer signal through the voltage follower; the ninth detection circuit buffers the acquired ninth detection signal into a ninth buffer signal through the voltage follower; the tenth detection circuit buffers the acquired tenth detection signal into a tenth buffer signal through the voltage follower; the eleventh detection circuit buffers the acquired eleventh detection signal into an eleventh buffer signal through the voltage follower; the twelfth detection circuit buffers the acquired twelfth detection signal into a twelfth buffer signal through the voltage follower; the thirteenth detection circuit buffers the collected thirteenth detection signal into a thirteenth buffer signal through the voltage follower; the fourteenth detection circuit buffers the collected fourteenth detection signal into a fourteenth buffer signal through the voltage follower; the fifteenth detection circuit buffers the acquired fifteenth detection signal into a fifteenth buffer signal through the voltage follower; the sixteenth detection circuit buffers the acquired sixteenth detection signal into a sixteenth buffered signal through the voltage follower.
The control module includes an Arduino chip model ZBST-UNO R3.
The display module comprises an LCD circuit and a serial port circuit; the LCD circuit is connected with the serial port circuit; the serial port circuit is used for communicating the LCD circuit with the control module, and the LCD circuit displays through the serial port circuit; the LCD circuit comprises an LCD with model number RSCG12864B 01; the serial circuit comprises a serial chip with model number PCF 8574.
And the reset module is connected with the control module, outputs a reset signal by adopting a reset button and resets the tripping outlet of the low-cycle deloading device and the matrix constant value quick verification device.
The low-cycle deloading device provided by the utility model has the advantages that the test process is simplified, the check time is shortened, the labor intensity is reduced, and errors caused by inaccurate measurement of a multimeter and manual accounting are avoided. Meanwhile, the voltage follower is adopted, so that the interference on a direct current system in the station is avoided, the pulse small signal is transmitted to the controller board for recognition and processing, and the testing efficiency and accuracy are improved. In the test, the action branch circuit can be confirmed only by checking with the data of the display screen, so that the tripping branch circuit is convenient to identify, and the workload of personnel is reduced.
Drawings
FIG. 1 is a functional block diagram of a hardware device according to the present invention.
Fig. 2 is a circuit diagram of a power module of the hardware device according to the present invention.
FIG. 3 is a schematic circuit diagram of a detection module of the hardware apparatus according to the present invention.
FIG. 4 is a circuit diagram of a control module of the hardware apparatus according to the present invention.
FIG. 5 is a circuit diagram of a display module of the hardware device according to the present invention.
Fig. 6 is a block diagram of an embodiment of the present invention.
Detailed Description
FIG. 1 is a functional block diagram of a hardware device of the present invention: the utility model provides a trip outlet and matrix constant value rapid verification device of a low-cycle load shedding device, which comprises a power module, a detection module, a control module, a reset module and a display module; the power supply module supplies power to the tripping outlet of the low-cycle load shedding device and the matrix constant value rapid verification device; the control module is respectively connected with the detection module and the display module; the detection module acquires an external pulse sampling signal and generates a pulse buffer signal by adopting a voltage follower, the detection module outputs the pulse buffer signal to the control module, and the control module performs trip matrix setting fixed value verification and outputs a matrix setting fixed value to the display module for display; the reset module is connected with the control module and resets the tripping outlet of the low-cycle deloading device and the matrix constant value quick verification device.
Fig. 2 is a schematic circuit diagram of a power module of a hardware device according to the present invention. The power supply module comprises a voltage stabilizing chip U2 with the model number of LM1117 and a mobile power supply; the mobile power supply is connected with the voltage stabilizing chip and outputs a DC signal through a USB interface of the DC socket; pins 1 and 2 of the DC socket USB interface X1 are grounded; a 3-pin output USB power supply signal PWRIN of the DC socket USB interface X1; the anode of the rectifier diode D1 is connected with a USB power supply signal PWRIN, the cathode of the rectifier diode D1 outputs a power supply VIN, the power supply VIN is connected with a pin (input end) 3 of the voltage stabilizing chip, the power supply VIN is a 12V power supply, and the rectifier diode is used for rectification; the pin 1 (grounding end) of the voltage stabilizing chip is grounded; the pin 0 (output end) and the pin 2 of the voltage stabilizing chip output power + 5V; one end of a first power supply filtering capacitor E1 is connected with a pin 3 of the voltage stabilizing chip, and the other end of the first power supply filtering capacitor E1 is grounded and used for filtering; one end of the power supply second filter capacitor C1 is connected with the pin 3 of the voltage stabilizing chip, and the other end is grounded and filtered; one end of the third filter capacitor E2 of the power supply is connected to pin 0 of the voltage stabilizing chip, and the other end is grounded and filtered.
Fig. 3 is a schematic circuit diagram of a detection module of the hardware apparatus according to the present invention. The detection module comprises a plurality of detection circuits; in this embodiment, the detection module includes a first detection circuit, a second detection circuit, a third detection circuit, a fourth detection circuit, a fifth detection circuit, a sixth detection circuit, a seventh detection circuit, an eighth detection circuit, a ninth detection circuit, a tenth detection circuit, an eleventh detection circuit, a twelfth detection circuit, a thirteenth detection circuit, a fourteenth detection circuit, a fifteenth detection circuit, and a sixteenth detection circuit; the first detection circuit buffers the collected first detection signal IN0 into a first buffer signal D0 through a voltage follower; the second detection circuit buffers the collected second detection signal IN1 into a second buffered signal D1 through a voltage follower; the third detection circuit buffers the collected third detection signal IN2 into a third buffered signal D2 through a voltage follower; the fourth detection circuit buffers the collected fourth detection signal IN3 into a fourth buffered signal D3 through a voltage follower; the fifth detection circuit buffers the acquired fifth detection signal IN4 into a fifth buffered signal D4 through a voltage follower; the sixth detection circuit buffers the acquired sixth detection signal IN5 into a sixth buffered signal D5 through a voltage follower; the seventh detection circuit buffers the collected seventh detection signal IN6 into a seventh buffered signal D6 through a voltage follower; the eighth detection circuit buffers the acquired eighth detection signal IN7 into an eighth buffered signal D7 through the voltage follower; the ninth detection circuit buffers the collected ninth detection signal IN8 into a ninth buffered signal D8 through the voltage follower; the tenth detection circuit buffers the collected tenth detection signal IN9 into a tenth buffered signal D9 through the voltage follower; the eleventh detection circuit buffers the collected eleventh detection signal IN10 into an eleventh buffered signal D10 through the voltage follower; the twelfth detection circuit buffers the collected twelfth detection signal IN11 into a twelfth buffer signal D11 through the voltage follower; the thirteenth detection circuit buffers the collected thirteenth detection signal IN12 into a thirteenth buffered signal D12 through the voltage follower; the fourteenth detection circuit buffers the collected fourteenth detection signal IN13 into a fourteenth buffered signal D13 through the voltage follower; the fifteenth detection circuit buffers the acquired fifteenth detection signal IN14 into a fifteenth buffered signal A0 through a voltage follower; the sixteenth detection circuit buffers the collected sixteenth detection signal IN0 into a sixteenth buffered signal a1 through a voltage follower; the first detection circuit comprises a first detection voltage-dividing resistor R211, a second detection voltage-dividing resistor R212 and a first detection operational amplifier U21; one end of the detection first voltage-dividing resistor is connected with a first detection signal IN0, and the other end is connected with a non-inverting input end (pin 1) of the detection first operational amplifier; one end of the detection second voltage-dividing resistor is connected with the positive-phase input end of the detection first operational amplifier, and the other end of the detection second voltage-dividing resistor is grounded; detecting a first voltage dividing resistor and detecting a second voltage dividing resistor for voltage division; the inverting input end (pin 3) of the first operational amplifier is connected with the output end (pin 4) of the first operational amplifier; detecting that the power supply input end of the first operational amplifier is connected with +5V of a power supply, and detecting that the grounding end of the first operational amplifier is grounded; the first operational amplifier is used for voltage follower, and the collected first detection signal IN0 is buffered into a first buffered signal D0 through the voltage follower. The circuit connection mode of the second detection circuit, the third detection circuit, the fourth detection circuit, the fifth detection circuit, the sixth detection circuit, the seventh detection circuit, the eighth detection circuit, the ninth detection circuit, the tenth detection circuit, the eleventh detection circuit, the twelfth detection circuit, the thirteenth detection circuit, the fourteenth detection circuit, the fifteenth detection circuit and the sixteenth detection circuit is the same as that of the first detection circuit.
Fig. 4 is a schematic circuit diagram of the control module and the reset module of the hardware apparatus according to the present invention. The control module comprises an Arduino chip with the model of ZBST-UNO R3; the 23 pins of the Arduino chip are connected with a power supply with the voltage of + 5V; pins 22 and 21 of the Arduino chip are grounded; a pin 25 of the Arduino chip is connected with a reset signal RST; one end of the reset pull-up resistor R11 is connected with a power supply +5V, and the other end is connected with a reset signal RST; pins 1 and 4 of the reset button output a reset signal RST, and pins 2 and 3 of the reset button are grounded; the 16 pins of the Arduino chip are connected with a signal A2 and control the display module; one end of the control terminal resistor R12 is connected with the signal A2, and the other end is grounded and used for communication; the 18 pin of the Arduino chip is connected with a signal A4, the 19 pin of the Arduino chip is connected with a signal A5, a signal A4 and a signal A5 for communicating with the display module; the fifteenth buffer signal A0 is input to pin 14 of the Arduino chip; sixteenth buffer signal A1 is input into pin 15 of the Arduino chip; pins 0-13 of the Arduino chip input buffer signals D0-D13, respectively.
Fig. 5 is a schematic circuit diagram of a display module of a hardware apparatus according to the present invention. The display module comprises an LCD circuit and a serial port circuit; the LCD circuit is connected with the serial port circuit; the serial port circuit is used for communicating the LCD circuit with the control module, and the LCD circuit displays through the serial port circuit; the LCD circuit comprises an LCD of RSCG12864B 01; the serial circuit comprises a serial chip U1 with model number PCF 8574. The 14 pin of the serial port chip is connected with a signal A5 and is connected with the 19 pin of the Arduino chip through a signal A5, and the signal A5 is a clock signal and is used for clock synchronization; a pin 15 of the serial port chip is connected with a signal A4 and is connected with a pin 18 of the Arduino chip through a signal A4, and the signal A4 is a data signal and is used for carrying out data transmission with the Arduino chip; a3 pin of the serial port chip is connected with a signal A2 and is output to a 16 pin of the Arduino chip, and the signal A2 is a busy signal and is used for controlling the data transmission speed of the LCD; pins 1 and 3 of the LCD are grounded; the pin 2 of the LCD is connected with a power supply with +5V and gets electricity; the 4 feet (data command selection end) of the LCD are connected with the 4 feet of the serial port chip and used for inputting data or command selection signals; the 5 pins (read-write control ends) of the LCD are connected with the 5 pins of the serial port chip and used for inputting read-write control signals; the 6 pins (enabling ends) of the LCD are connected with the 6 pins of the serial port chip and used for inputting enabling signals; the pin 11 of the LCD is connected with the pin 9 of the serial port chip, the pin 12 of the LCD is connected with the pin 10 of the serial port chip, the pin 13 of the LCD is connected with the pin 11 of the serial port chip, and the pin 14 of the LCD is connected with the pin 12 of the serial port chip; and pins 11-14 of the LCD are bus pins for transmitting data with the serial port chip and are connected with the Arduino chip through the serial port chip.
In a specific embodiment: FIG. 6 is a block diagram of an embodiment of the present invention, wherein 1 is a housing, 2 is a working ground pin, 3 is an LCD, 4 is a reset button, 5 is a USB interface, 6 is a Grove interface, 7 is a working ground clamp, 8 is 16 pulse voltage sampling clamps, 9 is a low cycle deloading device cabinet, and 10 is a trip outlet pressure plate; the detection module adopts 16 way sample fastener one end to carry 16 tripping operation clamp plates of low cycle device, and 4 groups of sampling input interfaces above the other end inserts shell 1 are connected to direct current sampling board (direct current sampling board includes operational amplifier) through the inside dupont patch cord of shell, and direct current sampling board passes through the dupont line and connects Arduino chip. The DC voltage sampling plate converts 115V DC pulse into 3.3V voltage small signals through high-resistance voltage division, and considering that 16 branches act simultaneously, the small resistance value of the voltage-dividing high-resistance parallel grounding can trigger an in-station insulation monitoring device to alarm, and 2.9 megaohms is selected by calculating the high-resistance value to reduce the influence on a DC system; for further reducing the influence to DC system in the station and improving the load carrying capacity of 3.3V voltage small signal, adopt the voltage follower to keep apart, cushion high resistance bleeder circuit output signal, can guarantee back level Arduino chip voltage sampling precision can protect the input port of Arduino chip again. The voltage follower in this example is implemented using an LM321 operational amplifier. The Arduino chip is arranged inside the shell 1, and a grounding wire clamp of the direct current sampling plate is connected with a transformer substation grounding grid when working; the direct current pulse voltage output by the tripping pressure plate after the low-cycle device acts is buffered and isolated by the direct current sampling plate, processed by the Arduino chip and then output to the LCD 3. The shell 1 of this embodiment is made of ABS resin cuboid, and the LCD3 is placed right above and in the middle and near the left, and four groups of Grove sampling interfaces are placed near the back, and each group has 4 channels and 16 channels with numbers, and 1 working ground terminal is installed near the right, and 2 USB interfaces are installed on the front side. The Arduino chip uses Arduino uno r3 board, and is software programmed using Arduino IDE. The cable that detects the adoption one end is the crocodile and presss from both sides, and the other end is the Grove plug, and every fastener all has the line number and is leaning on the plug end according to from a left side to the right side 1-16 serial numbers and wrap fixedly, prevents that the line order is in disorder. In this embodiment, the power module adopts the portable power source of two USB output interfaces, and supply voltage is direct current 5V, and direct current sampling board, Arduino chip and LCD's power leads to two USB interfaces in the side of shell 1 through internal wiring.
The working process of testing a group of trip matrixes of the low-cycle load shedding device comprises the following steps: connecting a USB power supply with a detection and sampling device, and displaying a 'waiting test start …' program on an LCD screen to scan 16 sampling signals in real time after the instrument is powered on; setting a debugging fixed value in a low-cycle load shedding device; simulating fault addition to the low-cycle deloading device by using a relay protection tester to enable the low-cycle deloading device to trip an outlet relay to act once; the detection device transmits the collected action branch direct current pulse to the direct current voltage sampling plate, and transmits the action branch direct current pulse to the Arduino controller after voltage division, buffering and isolation of the sampling plate; the controller starts timing after scanning to a first high level, continuously performs sampling scanning on 16 input ports during the timing, and detects and judges whether an input signal is a high level; after timing for 1S, summarizing all branches judged to be high level, and converting the branches into a matrix setting value form (4-bit 16-system number); displaying the serial numbers of all the action branches and the setting values of the matrix at the moment to an LCD (liquid crystal display); finally, the maintainer conveniently compares the direct reading result of the display screen with the fixed value list, and meanwhile, the correctness of the secondary wiring of the trip circuit of the low-cycle device is verified.
The utility model has compact structure, small size and portability, has obvious beneficial effects, can finish the trip outlet verification of 16 × N trip branches only by N times, finishes the verification of the setting value of N groups of matrixes, reduces the working risk, improves the detection precision, effectively shortens the working time and saves the working strength of maintainers.

Claims (7)

1. A low-cycle deloading device trip outlet and matrix constant value rapid verification device is characterized by comprising a power module, a detection module, a control module and a display module; the power supply module supplies power to the tripping outlet of the low-cycle load shedding device and the matrix constant value rapid verification device; the control module is respectively connected with the detection module and the display module; the detection module acquires an external pulse sampling signal and generates a pulse buffer signal by adopting a voltage follower, the detection module outputs the pulse buffer signal to the control module, and the control module performs trip matrix setting fixed value verification and outputs the matrix setting fixed value to the display module for display.
2. The low-cycle deloading device trip outlet and matrix constant value rapid verification device of claim 1, wherein the power module comprises a voltage stabilization chip with model number LM1117 and a mobile power supply; the mobile power supply is connected with the voltage stabilizing chip and outputs a DC signal through a USB interface of the DC socket; the voltage stabilizing chip converts the DC signal into +5V power supply.
3. The low cycle load shedding device trip outlet and matrix valuing fast verification device of claim 1, wherein the detection module comprises a plurality of detection circuits; the detection circuit comprises a first voltage division resistor, a second voltage division resistor and an operational amplifier; one end of the first voltage-dividing resistor is connected with a detection signal, and the other end of the first voltage-dividing resistor is connected with the positive-phase input end of the detection operational amplifier; one end of the detection second voltage-dividing resistor is connected with the positive phase input end of the detection operational amplifier, and the other end of the detection second voltage-dividing resistor is grounded; detecting a first voltage dividing resistor and detecting a second voltage dividing resistor for voltage division; the inverting input end of the detection operational amplifier is connected with the output end of the detection operational amplifier; the power supply input end of the detection operational amplifier is connected with the power supply module, and the grounding end of the detection operational amplifier is grounded; the first operational amplifier is used for voltage following, and the acquired detection signal is buffered into a buffer signal through the voltage follower.
4. The low-cycle deloading device trip outlet and matrix constant value rapid verification device of claim 3, wherein the detection module comprises a first detection circuit, a second detection circuit, a third detection circuit, a fourth detection circuit, a fifth detection circuit, a sixth detection circuit, a seventh detection circuit, an eighth detection circuit, a ninth detection circuit, a tenth detection circuit, an eleventh detection circuit, a twelfth detection circuit, a thirteenth detection circuit, a fourteenth detection circuit, a fifteenth detection circuit and a sixteenth detection circuit; the circuit connection modes of the first detection circuit, the second detection circuit, the third detection circuit, the fourth detection circuit, the fifth detection circuit, the sixth detection circuit, the seventh detection circuit, the eighth detection circuit, the ninth detection circuit, the tenth detection circuit, the eleventh detection circuit, the twelfth detection circuit, the thirteenth detection circuit, the fourteenth detection circuit, the fifteenth detection circuit and the sixteenth detection circuit are the same; the first detection circuit buffers the acquired first detection signal into a first buffer signal through a voltage follower; the second detection circuit buffers the acquired second detection signal into a second buffer signal through the voltage follower; the third detection circuit buffers the acquired third detection signal into a third buffer signal through the voltage follower; the fourth detection circuit buffers the acquired fourth detection signal into a fourth buffer signal through the voltage follower; the fifth detection circuit buffers the acquired fifth detection signal into a fifth buffer signal through the voltage follower; the sixth detection circuit buffers the acquired sixth detection signal into a sixth buffer signal through the voltage follower; the seventh detection circuit buffers the acquired seventh detection signal into a seventh buffer signal through the voltage follower; the eighth detection circuit buffers the acquired eighth detection signal into an eighth buffer signal through the voltage follower; the ninth detection circuit buffers the acquired ninth detection signal into a ninth buffer signal through the voltage follower; the tenth detection circuit buffers the acquired tenth detection signal into a tenth buffer signal through the voltage follower; the eleventh detection circuit buffers the acquired eleventh detection signal into an eleventh buffer signal through the voltage follower; the twelfth detection circuit buffers the acquired twelfth detection signal into a twelfth buffer signal through the voltage follower; the thirteenth detection circuit buffers the collected thirteenth detection signal into a thirteenth buffer signal through the voltage follower; the fourteenth detection circuit buffers the collected fourteenth detection signal into a fourteenth buffer signal through the voltage follower; the fifteenth detection circuit buffers the acquired fifteenth detection signal into a fifteenth buffer signal through the voltage follower; the sixteenth detection circuit buffers the acquired sixteenth detection signal into a sixteenth buffered signal through the voltage follower.
5. The low cycle deloading unit trip outlet and matrix rating quick verification device of claim 1, wherein the control module includes an Arduino chip model ZBST-UNO R3.
6. The low-cycle deloading device trip outlet and matrix constant value rapid verification device of claim 1, wherein the display module comprises an LCD circuit and a serial circuit; the LCD circuit is connected with the serial port circuit; the serial port circuit is used for communicating the LCD circuit with the control module, and the LCD circuit displays through the serial port circuit; the LCD circuit comprises an LCD with model number RSCG12864B 01; the serial circuit comprises a serial chip with model number PCF 8574.
7. The low-cycle deloading device trip outlet and matrix constant value rapid verification device according to claim 1, further comprising a reset module, wherein the reset module is connected to the control module, and the reset module outputs a reset signal by using a reset button and resets the low-cycle deloading device trip outlet and the matrix constant value rapid verification device.
CN202122712926.1U 2021-11-08 2021-11-08 Low-cycle deloading device tripping outlet and matrix constant value rapid verification device Active CN216117803U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122712926.1U CN216117803U (en) 2021-11-08 2021-11-08 Low-cycle deloading device tripping outlet and matrix constant value rapid verification device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122712926.1U CN216117803U (en) 2021-11-08 2021-11-08 Low-cycle deloading device tripping outlet and matrix constant value rapid verification device

Publications (1)

Publication Number Publication Date
CN216117803U true CN216117803U (en) 2022-03-22

Family

ID=80714122

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122712926.1U Active CN216117803U (en) 2021-11-08 2021-11-08 Low-cycle deloading device tripping outlet and matrix constant value rapid verification device

Country Status (1)

Country Link
CN (1) CN216117803U (en)

Similar Documents

Publication Publication Date Title
CN109143033B (en) Automatic testing system for whole satellite interface
CN103969546B (en) Four wye voltage transformer secondary polarity intelligent testers
CN103095338B (en) Fault detection device of electric energy collectors
CN104820156A (en) Wire harness detection device and method
CN111880516A (en) Automatic detection device and method based on lithium battery controller of electric vehicle
CN103728510B (en) Excitation unit on-site test system and method
CN112485750B (en) Communication module interface testing method and system for intelligent electric meter
CN202383250U (en) Full-automatic universal test equipment for electric control board
CN216117803U (en) Low-cycle deloading device tripping outlet and matrix constant value rapid verification device
CN113253079A (en) Microcomputer type direct current system insulation monitoring test device and method
CN201319049Y (en) High-tension current mutual-inductor transformation ratio tester
CN219223762U (en) Portable optical fiber gyro testing device
CN203788304U (en) Device for testing function of hardware interface
CN201203938Y (en) Cable wireless test system
CN110736951A (en) portable fault indicator detection and distribution network fault simulation device
CN104678349A (en) Interface detection device for electric energy meter and system of interface detection device
CN210465563U (en) Automatic testing arrangement of avionics department annex
CN213986738U (en) DC relay checking device
CN202443330U (en) Combination control unit detector
CN211554148U (en) Novel reactive compensation capacitor bank discharge coil direct current resistance tester
CN202471944U (en) Integrated tester for high voltage metering device
CN106771790A (en) A kind of switch cubicle energizing test platform
CN203643568U (en) Test equipment for subway signal system vehicle-mounted equipment direct current power supply board card
CN208506587U (en) A kind of safe instrument control system cabinet capacitance detecting device
CN202994990U (en) Electric stress-applying aging device for PXI bus relay products

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant