Knowledge

In the world of high-voltage maintenance, few tasks are as high-pressure as locating a fault in an underground cable. Every hour of downtime translate

In the global transition towards sustainable energy, the power industry faces a unique challenge: balancing the unmatched insulation performance of Ga

In the world of high-voltage (HV) commissioning, long-distance XLPE cables are often referred to as "Capacitance Monsters." As power grids m

Series resonance protection is very important for GIS insulators. Once a flashover occurs, the capacitance changes abruptly, and the resonance conditi

Although SF6 gas inside GIS has excellent insulating properties, it is highly sensitive to residual metal particles. Applying the series resonant syst

The manufacturer has already tested the GIS at 100% voltage in a clean factory environment. Why must we repeat this dangerous test on-site after insta

It is a matter of Physics and Power. A GIS busbar is essentially a massive, high-voltage coaxial capacitor. The Problem: In AC systems, a capacitor re

For Maintenance & Protection Engineers, there are very useful FAQ about Secondary Burden & 10% Error Curve Analysis. Through them, we can lear

During the transformer testing process, as a power engineer, we may encounter various problems during the operation. Through the following questions a

Q: My GIS is rated for 220 kV. Should I test it at the same voltage the factory used during their Type Test? A: NO. Field test voltages are lower to a

Q: If we are doing a withstand test, why also monitor partial discharge? A: Hipot is a "Pass/Fail" test; PD is a "Diagnostic" test

Q: Some engineers use acoustic devices, others use UHF monitors. Which is superior? A: They are partners, not competitors. UHF is for scanning electro