Transformer oil serves both as an
1). Insulating medium and
2). Coolant
and its dielectric integrity is critical for safe operation.
Routine oil testing focuses on two key parameters:
Importance of BDV & Moisture Analysis
BDV (Breakdown Voltage)
This test measures the dielectric strength of the transformer oil & its ability to withstand electrical stress without failure.
A high BDV (Breakdown Voltage) value indicates good insulation quality while low BDV suggests contamination (or) moisture presence.
PPM (Moisture Content)
Moisture in transformer oil drastically reduces insulation performance and accelerates aging of both oil and paper insulation.
Measuring PPM helps us to ensure the oil remains dry and capable of handling high voltages safely.
Regular Testing
By maintaining high BDV and low PPM levels we help extend transformer life, prevent outages & ensure consistent energy delivery.
Maintaining high BDV (≥ 60 kV) and low moisture (≤ 10 PPM for new oil) is essential for the insulation reliability and transformer longevity.
You can also follow us on AutomationForum.co, Facebook and Linkedin to receive daily Instrumentation updates.
You can also follow us on ForumElectrical.com , Facebook and Linkedin to receive daily Electrical updates.