The Megger MIT200 series of 250-V, 500-V and 1000-V insulation and continuity testers perform insulation testing to 1000 MΩ Continuity testing can be done at 200 mA down to 0.01 Ω. The testers include ...

If the reliability of the public electricity supply is to be maintained in the future, routine diagnostic testing of transformers by the power utilities is no longer optional – it’s a necessity, ...

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 ...

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 ...