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Operation method of high voltage switch dynamic characterist


 ZC-300A high voltage switch dynamic characteristic tester can be used to test and measure mechanical characteristic parameters of high voltage switch in power system of various voltage levels, such as vacuum, sulfur hexafluoride, less oil and more oil. The measurement data is stable, the wiring is convenient and the operation is simple. It is the most convenient tool for maintenance test of high voltage switch.
 
After all parameters are set, enter from the characteristic test menu and press the confirm key to enter the fracture state, as shown in the following figure:

Fracture state figure
 
Then press the confirm key to turn the page. The menu of confirming main fracture appears. By default, A1 is the main fracture. The sampling point of sensor must be connected to the back of fracture A1, and the collected data is from fracture A1. If it is set to B1 fracture, the sampling point of sensor must be installed behind B1, and so on. If one of the three fractures A1, B1 and C1 has fault, it should be set to A2 fracture. At this time, the data line should be installed to A2 fracture, and the test can also be carried out, and so on.

At this time, press the confirm key again, and the instrument will automatically carry out the opening or closing test according to the switch status. The test data is shown in the following figure:

Fracture waveform and velocity diagram
 
1. The distance of 5.5mm on the test data refers to the open distance;
2. Time 18.5ms refers to the rigid closing time of A1 phase;
3. The velocity of 1.14m/s refers to the rigid closing point velocity of A1 phase.
 
Press the confirm key to turn the page, and press the print key to print all the data.

Test result graph
 
1. The maximum speed in the test data is the maximum speed;
 
2. Average refers to the average speed. Generally, the switch only needs the average speed.
 
3. Current refers to the maximum current.
 
Press the print key to print all the data, and then press confirm to turn the page to display the save menu, press save key to save, press return key to not save.