Grounding requirements for 10kV substations
Metal enclosures for transformers, switchgear, and transformers (PT, CP), distribution cabinets, control and protection panels,...
January 2026
hvhipot Transformer on load voltage regulation
1. Advantages of On Load Voltage Regulating Transformers 1.1 Maintain voltage stability. Transformers have impedance,...
Test of circuit resistance
Compared with similar products, there are still significant differences in the current series resonance of...
Number of insulator pieces for DC lines
Due to the electrostatic adsorption effect of DC lines, the pollution level of DC lines...
Insulation resistance test of HV equipment
1、 Why is the megohmmeter most widely used in insulation testing of high-voltage electrical equipment? ...
10kV power frequency withstand voltage test cost
Power equipment is an indispensable component of the power system, and ensuring the safe operation...
50kV power frequency withstand voltage test device
50kV AC/DC power frequency withstand voltage test device With the development of modern industry, the...
On site testing of zinc oxide lightning arrester
In the 10KV (6KV) distribution network of the power system, tubular lightning arresters were commonly...
Power frequency withstand voltage test device
The fully automatic power frequency withstand voltage test device is one of the essential equipment...
The problem of series resonant circuit
In a series RLC circuit operating above the resonant frequency, electric current A. Lagging behind...