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 ...

With the IDAX-300 test set from Megger, you can assess the condition of the insulation in power transformers, bushings, generators, motors, and cables—a key indicator of future reliability and ...

This test set uniquely combines winding resistance measurement, transformer turns ratio, tap changer dynamic resistance, core demagnetization, transformer type detection, magnetic balance, short ...

Complex grids depend on equipment such as transformers, protection relays, switchgear, and cables—each of which can develop faults not immediately visible during normal operation. As a result, ...

Among the various diagnostic methods used to assess transformer condition, capacitance and Tan Delta testing has gained broad acceptance as an effective means of evaluating insulation health. By ...

With the automated six-winding test function provided by Megger’s new MTO3XX transformer ohmmeters, resistance measurements can be made on all phases and windings of a power transformer without the ...

So you have an old tube-type transmitter as a backup. It ran perfectly when you last turned it on two years ago to substitute for your then-ailing solid-state main transmitter. Now you need it again.

This article was updated Feb. 27, 2023. It was originally published Aug. 9, 2018. When a transformer fails, especially newer ones, the cost of damages can far exceed the simple replacement cost. The ...