Partial Discharge Testing: Need, Testing Methodologies and Addressing Defects

Studies show that over 85% of disruptive failures in high voltage (HV) and medium voltage (MV) equipment are Partial Discharge related. Partial Discharge (PD) activity provides evidence  of deterioration in assets, which can propagate and increase, until the insulation is no longer able to withstand the electrical stress therefore leading to flash-over and finally equipment failure. Therefore, early detection …

Success Story: Preventing Circuit Breaker Failure At One Of India’s Largest Electric Power Transmission Utilities

As elaborated in our previous post, Dynamic Contact Resistance Measurement (DCRM) tests play a pivotal role in preventing unexpected failures of High Voltage (HV/EHV/UHV) Circuit Breakers by cohesively assessing the healthiness of their contacts. Widely considered as the most comprehensive CB testing methodology, the success of any DCRM test depends on a trifecta of the …

DCRM Testing For High Voltage Circuit Breakers: What, Why, How

High Voltage Circuit Breakers (HV/EHV/UHV) act as the most effective protection mechanism against electrical mishaps in the high voltage environment of Substations. Since Circuit Breakers (CBs) are mechanical devices, they are vulnerable to breakdowns if timely performance tests are not conducted to ensure their functional healthiness. In our earlier post, we broadly covered the 9 …

9 Fundamental Tests For High Voltage Circuit Breakers

When it comes to the cohesive protection of man, machine and infrastructure from electrical mishaps, Circuit Breakers (CBs) play a linchpin role, especially in the high-voltage (HV) environment of Substations. With rapid advancements in technology, while the quality of HV CBs has definitely improved over the last few years leading to a significant drop in …