What's the principle of low-frequency method for measuring the excitation characteristics of current transformers?Excitation characteristic test is the most commonly used and effective method for detecting the performance of protective current transformers.The composite error of current transformers

End of March, we received an order about ZJA-2KY 2000L/H Double Stages Transformer Oil Purification Machine from our regular customer. After a month of effort from the production department, we completed production by the end of April. We are currently ready to wait for the customer's shipping instr

At the invitation of the NGCP project department, our engineer went to Manila and Cebu in the Philippines to provide the second training and acceptance work on GDGK-307 Full Automatic Circuit Breaker Analyzer.This batch of GDGK-307 Full Automatic Circuit Breaker Analyzer customized computer control