Instrument transformers are crucial for a reliable and safe energy supply. During the lifetime of instrument transformers, a number of internal and external factors may change the operational behavior ...

TRAX from Megger is not just another multi-functional test instrument, but rather many intelligent instruments built into one box. The software includes a number of apps, making it fast and easy to ...

THE ENERGY Regulatory Commission (ERC) detailed on Wednesday the inspection process for meters and instrument transformers to be used in the power system in a package of rules on device certification ...

Instrument transformers, encompassing current transformers (CTs) and voltage transformers (VTs), are indispensable for scaling high-voltage or high-current signals to levels suitable for protection, ...

Transformers are very reliable devices and can provide service for a long time if regularly maintained and serviced. They’re also the single most costly item in any substation. To protect against ...

I’m sure many readers would question why anyone would want to perform a relatively expensive insulation power factor test on an inexpensive transformer. Typically, if any testing is done, it will be ...

Solid-state ac supplies replace motor-generator and tap-changing transformers to offer the same tests at the push of a button • Solid-state ac-power sources combine the variable-frequency and ...