Tech Blogs

• Hazards and Treatment of Excessive Contact Resistance of Circuit Breakers or HV 2022-05-05
• Common Faults and Treatment Methods for Disconnect Switch in Substations2022-05-03
• How to correctly test the DC winding resistance of transformer windings?2022-04-28
• How to test the contact resistance of disconnect switches in 110KV/220KV substat2022-04-28
• What is the difference between DC& AC resistance and how to measure it?2022-04-24
• What is the rated turns ratio, actual turns ratio, standard and non-standard tur2022-04-22
• What is the Tan Delta(δ) of the Transformer and How is it Tested?2022-04-19
• What is the DC Winding Resistance of Transformer&Motor and How is it Tested?2022-04-18
• Causes and Solutions of Partial Discharge in Transformers2022-04-18
• How to Carry out the Breakdown Voltage Test of Transformer Oil?2022-04-14
• What is the Testing Checklist for 110kV/220kV Substation Acceptance and Maintena2022-04-08
• What tests Must be done(FAT) before a transformer leaves the factory?2022-04-07
• How to Choose the Capacity and Quantity of Transformers?2022-04-05
• What's The Details Concerned When Using The Transformer Turns Ratio Tester2022-03-31
• Which Parameters are Concerned More When Selecting DC Winding Resistance Tester?2022-03-29
• kingrun DC winding resistance tester ILAC accredited2019-10-09
• Influence of the ripple coefficient of the power supply on the accuracy of the D2019-09-09
• What is ripple coefficient ?2019-09-02
• Why Does the Contact Resistance Testing Need 100A or Higher?2019-08-05
• The Fatal Threat to Transformers---Ignition Point and Flash Point of Insulating 2019-07-27