METHOD FOR THERMAL PROTECTION OF EXPLOSION-PROOF TRANSFORMER

摘要

A method for thermal protection of an explosion-proof transformer via control of thermal condition and normal operation of windings, supplying a warning signal about possible exceeding heat temperature of admissible value, supplying a signal and disconnection of the transformer when heat temperature exceeds admissible value is characterized in following: control of normal operation of thermal protection is performed via decreasing operation threshold of sensors to level of current heat of transformer winding to a moment of checking normal operation of thermal protection.