Transformer overvoltage protection

Transform voltage Voltage stabilizer and transmission of electrical energy grid electrical equipment, power supply to consumers of the carrier, safe and reliable operation of the transformer emotional ties lighted. However, due to many reasons grid operation will produce over-voltage, and the transformer's insulation level is relatively weak, causes damage to the transformer, electric transformer maximum probability of damage. Operation of the grid overvoltage generated for some reason, will result in damage to the transformer, the insulation levels are determined mainly by the lightning strike withstand voltage and power frequency withstand voltage to decide.
Overvoltage refers to the insulation dangerous voltage rises suddenly, this non-normal voltage increases, the amplitude of up to more than several times the rated voltage, a serious threat to the safety transformer insulation, if a longer circuit breakers of the overvoltage , will cause damage to the transformer. To ensure the safety of the grid in transformer, the transformer in addition to high quality, but also on the transformer to set reasonable and effective over-voltage protection.