Zhuhai Kehui Electrical Co., Ltd.. is located in Zhuhai, Guangdong province, Kehui is a high-tech enterprise engaged in development, manufacture, sale and service of Energy Cost Testing, Meter Testing Devices and Power Substation Testing since 1995, and all the products are manufactured under ISO9001 global quality system.
Kehui contains more than 150 employees, and with large scale production space over 5,000 square meters. There are more than 30 technical staff work at our R&D center. A large part of Kehui success stems from R&D and stringent quality control system.
We are the supplier of STATE GRID Corporation of China and China Southern Power GRID. And our products have been exported to India, Vietnam,Malaysia and Russia. Kehui Products enjoy solid reputation among customers for highest quality and value for price.
We are pleased to co-operate with friends and customers home and abroad.
This device utilizes our company?s patent technology, automatically measuring transformer?s error and calibrating it, with the purpose to guarantee the constant stability of transformer?s error.
Main Features
1)Check the errors of three-phase Watt-Hour meter active and reactive power at one time, and also check the errors of main meter and sub-meter at one time;
2)Display the following electrical parameters: U, I, P, Q, Φ, F etc.
3)Test CT transformation ratio, showing in waveform;
4)Test 2~51 harmonic wave of current and voltage;
5)Judge wrong line connection;
6)Test communication baud rate of multifunctional meter and read its number;
7)PT and CT secondary load function;
8)Calibrate transformer?s errors automatically;
9)Able to hold upload and download data (FAT32 documentation) in Flash disk and update it;
10)Supply power by batteries, supply power and charge online with wide voltage range(57.7~480V);
11)Worst case accuracy: ?0.05%, ?0.1%.