Transformer burned reasons: 1, between the low side voltage transformer turns and when phase short circuit transformer, low voltage fuse insurance yet, due to the exciting current increases rapidly, so that the high-pressure melt tube fuse is blown or burned out transformers. 2, when the qualifying 10kV single-phase ground when Hengshui high voltage transformer, voltage transformer primary side voltage is relatively non-fault root of 3 times the normal voltage. Voltage transformer core saturation quickly, exciting current sharply increased, so that the fuse is blown. 3, due to the electricity network comprising capacitive and inductive elements parameters LANGFANG high voltage transformer, in particular, the inductance element having a ferromagnetic core, the magnetic resonance caused by unfavorable parameter combination. 4, zero-sequence current flowing through the transformer primary winding voltage increases (in terms of excessive relative to the ground current system), long-running, the thermal effect generated by the zero-sequence transformer will cause damage to the insulation voltage transformer, burst ; nonlinear oscillations (arc grounding overvoltage), greatly exacerbated the damage process system voltage transformer 5, the existence of the system; 6, voltage transformer itself is poor cooling conditions. Xian Huayi power plant is the high-voltage electrical equipment backbone enterprises, leading products 6-110kV high voltage vacuum circuit breakers, low voltage switch cabinet, box-type substation, power transformers, voltage and current transformers, high-voltage fuse, load switch, isolation switch, zinc oxide surge arresters, harmonic elimination and so on. Langfang high voltage transformers, transformers, power is supplied by the Xi'an Huayi Huayi power plant. Xian Huayi power plant (www.xahy.com) strong, credible, in Xi'an high-voltage circuit breakers and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi power and you hand into the brilliant, for a better future!