Electrical Maintenance & Testing

HV and LT maintenance, diagnostics, testing and breakdown response for transformers, substations, switchgear and RMUs.

Power Factor Penalty in Maharashtra: What kVAh Billing Replaced It With

MSEDCL withdrew power factor incentives and penalties for consumers on kVAh billing. What replaced them costs more at poor power factor, and the tariff was set assuming 0.95.

gradeelectricalswe

Sep 287 min read

Transformer Oil BDV Test: Acceptable Values by Voltage Class

Minimum and target BDV values for 11 kV to 220 kV transformer oil, the IS 6792 test method, moisture limits, and what to do when a reading fails.

gradeelectricalswe

Sep 66 min read