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The use method of zinc oxide arrester direct current paramet
2019-12-25Zc-711 zinc oxide arrester DC parameter tester is a new generation of instrument improved by our company according to the field measurement requirements. It combines DC high voltage power supply, measurement and control system organically, reduces the volume and weight of the instrument. At the same time, the operation setting… -
Precautions for use of high and low voltage CT transformatio
2019-12-24The zc-611 high and low voltage current transformer transformation ratio tester developed by our company is a new type of power inspection equipment for high voltage metering users. It can detect the transformation ratio and polarity of current transformer for 35kV and below metering device without power failure or line… -
Precautions for use of dry test transformer
2019-12-23Zc-501c dry-type experimental transformer is developed and manufactured by Zhizhuo measurement and control using advanced production equipment, using the new process of epoxy vacuum casting of coil winding and CD type iron core. Compared with the oil immersed transformer of the same kind, it obviously reduces the weight and volume,… -
Dielectric loss of insulating oil and common faults of resis
2019-12-20In consideration of this situation, this paper will simply teach you some solutions to dielectric loss of insulating oil and common faults of resistivity tester, so that you can work more efficiently. 1. The screen displays "electrode cup short circuit" Treatment: first check whether the positioning groove… -
Measurement method and procedure of leakage protector tester
2019-12-19Zc-320 leakage protector tester (also called leakage protector calibrator) is mainly used to test the leakage action current, leakage non action current and leakage action time of leakage protector, which is suitable for most electric power work. This paper briefly introduces the measuring method and steps of zc-320 leakage protector… -
Precautions of zinc oxide arrester DC parameter tester
2019-12-18According to the provisions of 14.2 in DL / T596-1996, before thunderstorm season and when necessary, the metal oxide arrester of power plant and substation shall be tested for leakage current under DC 1mA voltage (U1mA) and 0.75u1ma. The zc-711 zinc oxide arrester DC parameter tester newly developed by our… -
The use of high and low pressure CT ratio tester
2019-12-17Zc-611 high and low voltage CT transformation ratio tester is a new generation of transformation ratio tester developed by our company by virtue of years of experience in R & D and production of intelligent instruments and adapted to the needs of users on site. It can measure the high-voltage… -
Precautions for use of precision oil dielectric loss tester
2019-12-16The zc-211 precision oil dielectric loss tester developed by our company is designed and manufactured according to GB/ t5654-2007 "measurement of relative permittivity, dielectric loss factor and dc resistivity of liquid insulating materials". It is the integration of structure, the internal integration of the dielectric loss of oil cup, temperature… -
Characteristics of Pt excitation characteristic tester
2019-12-13Zc-121a Pt excitation characteristic tester is a special instrument specially developed by our company in combination with Wuhan High Voltage Research Institute of China Electric Power Research Institute and in accordance with the latest national standard of Pt, GB / T 22071.2-2008 guide for transformer test Part 2: electromagnetic voltage… -
Precautions for using leakage protector tester
2019-12-12The zc-320 leakage protector tester developed by our company is mainly used to test the leakage action current, leakage non action current and leakage action time of the leakage protector. The test current is 0-500ma, which is divided into ten levels, the time test range is 0-799ms, and the 16…














