Partial discharge testing is a powerful technique for determining the health of high voltage assets and diagnosing faults in them. For many engineers and technicians, however, this technique is relatively new and unfamiliar, so it unsurprising that it...

The International Electrotechnical Commission (IEC) is currently working on a new series of standards that covers the functional requirements of measuring relays and related equipment used to protect electrical transmission and distribution systems. The new...

Although many of our readers will be familiar with circuit breakers used in AC power systems, it’s possible that they may know less about the high-speed DC circuit breakers (DC HSCBs) that are frequently found in transportation systems. To remedy this...