GKC-8 High Voltage Switch Dynamic Characteristics Tester
I. Overview
With the development of society, people have increasingly high requirements for the safety and reliability of electricity use. High voltage circuit breakers play a dual role in control and protection in the power system, and their performance directly affects the safe operation of the power system. The GKC-8 high-voltage switch dynamic characteristic tester is designed based on the "High Voltage AC Circuit Breaker" GB1984-2003 as the blueprint, referring to the Chinese power industry standard "General Technical Conditions for High Voltage Testing Equipment" Part 3, and DL/T846.3-2004 high-voltage switch comprehensive tester as the design basis. It provides convenience for dynamic analysis of various circuit breakers and can accurately measure the dynamic characteristic parameters of low oil, high oil, vacuum, sulfur hexafluoride and other high-voltage circuit breakers of various voltage levels.

IIGKC-8 High Voltage Switch Mechanical Characteristics TesterFunction and Features
1. Large screen LCD display, high-speed thermal printer, using Chinese character prompts for human-machine dialogue operation;
2. Integrated operation power supply, no need for on-site secondary power supply, accurate data, strong anti-interference ability, small size, light weight, beautiful and elegant, more convenient and fast on-site use;
3. The internal anti-interference circuit can meet the reliable use in 500kV substations, and the protection circuit can ensure the safety of equipment and personnel, as well as the stability and accurate testing of instruments;
4. The machine is equipped with a clock circuit that can display the current year, month, day, hour, minute, and second. Even if there is a power outage, it can automatically save the set data and test data;
5. Integrated data management function, managed by station name, equipment, and experiment, equipped with upper computer analysis software;
6. Equipped with waveform recording function, it can display the waveform of the fracture state and the stroke time (S-t) curve corresponding to the time coordinate, which is conducive to accurate judgment of switch mechanism faults;
7. It can test the speed of all switches, equipped with rotation sensors, linear sensors, and sliding resistance sensors, covering almost all types of speed tests;
8. Design a reclosing test function with a switch, and various reclosing tests can be carried out at will;
9. The machine is equipped with a delay protection function, which can automatically cut off the power supply after the circuit breaker is activated, effectively protecting the circuit breaker equipment and high voltageSwitch tester；
10. Low voltage test of switch operating mechanism;
11. Applicable to the measurement of mechanical characteristics and operating voltage of all SF6, vacuum, and low oil high-voltage switches at home and abroad;
12. Test channel 7: Simultaneously measure the inherent opening and closing time, synchronicity, and speed of 6 channels of the fracture surface.
13. Standard USB interface for data exchange, each switch can be independently configured with relevant test configurations and stored in a USB drive;
3、 Main technical indicators
3-1 Test items:
(1) Time measurement
(2) Simultaneously measure the inherent opening and closing time and synchronicity of 6 fracture surfaces;
(3) Bounce frequency and bounce time;
(4) Speed and travel measurement
(5) Fast separation speed, fast closing speed, Z-speed;
(6) Distance, overtravel, and total travel;
(7) Instantaneous speed of opening and closing, and draw the "stroke time (S-t)" curve;
(8) Display the waveform of the fracture state;
(9) Recloser test;
(10) Low voltage test.
3-2 Main technical parameters:
(1) Z speed: 20m/s, resolution: 0.01m/s; The test accuracy is: ± 1.0% reading ± 0.05;
(2) Travel test range: 6mm to 1000mm (determined by the length of the sensor);
(3) Travel Z small resolution: 0.1mm; testing accuracy: ± 1.0% reading ± 0.1mm (sliding resistance sensor);
(4) Time testing range: 10ms to 12s;
(5) Time resolution: 0.1ms; Time testing accuracy: ± 0.5% reading ± 0.2ms;
(6) Z small action synchronous difference resolution: 0.1ms; test accuracy: ± 0.5% reading ± 0.1ms;
(7) Test channel 7: 6 channel break times, 1 channel speed;
(8) Power supply: AC220V ± 10%; 50Hz±1Hz；
(9) Operating power output: adjustable voltage from 20V to 250V, current of 20A, digital programmable adjustment.
3-3 Instrument Technical Specifications
Environmental group: Belongs to Group V instruments in GB6587.1-1986 "General Principles for Environmental Testing of Electronic Measuring Instruments"
Type: Portable Packaging: Aluminum Alloy Box
Host size: 400 × 300 × 240 (mm) Weight: 5 (kg)
Working power supply: AC220V ± 10% Frequency: 50Hz ± 5%
Environmental temperature: -10 ° C~40 ° C Relative humidity: ≤ 85%
Insulation resistance: ≤ 2M Ω
Dielectric strength: The power supply incoming line can withstand a withstand voltage test of 1.5kV for one minute on the casing