The high voltage switch dynamic characteristic tester is a control device in the power system, and the operating states of the power system are diverse, and its load conditions are also constantly changing. Therefore, the overall requirement for circuit breakers is that, regardless of the state of the power system and regardless of the load conditions encountered, the circuit breaker can reliably close and open the controlled lines and equipment. The loads that circuit breakers often disconnect include: no-load long lines, capacitor banks, no-load transformers, high-voltage motors, igniters, wires and cables, etc. Since the loads disconnected by circuit breakers vary, the requirements for them also differ.
①The requirements for the high voltage switch dynamic characteristic tester to open general short-circuit faults are to reliably and quickly cut off the fault and be able to perform reclosing.
②The requirements for the high voltage switch dynamic characteristic tester to open no-load transformers and high-voltage motors are to avoid causing voltage that leads to flashover of bushings and porcelain insulators, which could evolve into explosion of the arc extinguishing chamber and circuit breaker damage.
③The requirements for the high voltage switch dynamic characteristic tester to open no-load long lines. Switching no-load long lines with circuit breakers is a routine operation, which is crucial for the reliable operation of the power grid.
④The requirements for the high voltage switch dynamic characteristic tester to open capacitor banks. Operating experience has proven that when switching capacitor banks with circuit breakers, although the capacitive current is not large, overvoltage will be generated during the operation, often causing damage to circuit breakers and arresters. Therefore, it is required that when cutting off capacitors, there should be no arc reignition, and the high voltage switch dynamic characteristic tester should not cause operating overvoltage on the busbar.
Product Parameters
1. Time: Range 4000.0ms Resolution 0.1ms
Error ①Within 100ms: 0.1ms±1 digit
②Above 100ms: 0.1%±1 digit
③Synchronism: ±0.1ms
2. Stroke:
Range | Resolution | Error | |
Vacuum Circuit Breaker | 50.0mm | 0.1mm | 1%±1 digit |
SF6 Circuit Breaker | 300.0mm | ||
Low Oil Circuit Breaker | 1000.0mm |
Product Introduction
1. The high voltage switch dynamic characteristic tester is suitable for various models of metal contact SF6 switches, GIS combined appliances, vacuum switches, and oil switches produced domestically and internationally.
2. High-precision speed sensor, linear displacement sensor, and rotary sensor are easy and simple to install.
3. The host can store multiple sets of on-site opening and closing test results, with a built-in real-time clock for easy archiving of test dates and times.
4. Built-in fast micro printer to print all data and curves.
5. The host features a large screen, direct-transmissive, backlit LCD with electronic contrast adjustment. Full Chinese menu prompts for operation, switch action, displaying all data and waveform curves.
6. The instrument is equipped with PC-linked "Circuit Breaker Data Analysis Management Software Windows Chinese Version" software, allowing test results to be directly saved to the hard disk or output to various printers for test reports, making on-site testing computerized.
7. The instrument has powerful data analysis functions, capable of comprehensively analyzing various mechanical characteristic parameters of circuit breakers.
8. The instrument is configured with a speed custom addition program, allowing users to freely add various definitions of just-open and just-close speeds as needed.
Product Advantages
Suitable for various models of metal contact: SF6 switches, GIS combined appliances, vacuum switches, oil switches, etc.
