Product Introduction： The “Guidelines for On-site Inspection of Electric Energy Measurement Devices” of the Production and Operation Department of State Grid Corporation clearly stipulates that the actual secondary load of current transformers and voltage transformers mus...

Product Introduction： The relay protection device tester is based on the reference to DL / T624-1997 "Technical Conditions of Microcomputer-based Relay Protection Test Device" issued by the Ministry of Electric Power, and listens to the opinions of users extensively, s...

Product Introduction： The switch characteristic tester is a special instrument developed by our company to meet the needs of various high-voltage switch operation characteristics tests. It can accurately measure low voltage, high oil, vacuum, sulfur hexafluoride of vari...

Product Introduction： The high-voltage switch dynamic characteristic tester is a special instrument developed by our company to meet the needs of various high-voltage switch operational characteristics testing. It can accurately measure low oil, multiple oil, vacuum, he...

Product Introduction： 1.Fully isolated design, highly safe. It can be used for relay protection device and switch operation loop 80% voltage adjustable power supply. 2. The self-starting performance test of the switching power supply of the protection device can be use...

Product Introduction： The digital millisecond meter is a relay protection device of the power system, various relay movement devices with contacts and no contacts, various action times and return action intervals of the automatic device, and the main contact of the power...