The transitional response voltage distribution of transformer winding under lightning surge is simulated by PSpice,the impulse response voltage distribution of transformer winding for two design scheme is analyzed,and the rationality of partitioning insulation structure in transformer winding is validated.

The article introduces the insulation structure of low-voltage asynchronous motor, dealing with how to select its disposition in the light of the motor s using situation in the repair of asynchronous motor.

Because of the unreasonable design on insulation construction,the non-segregated buses of Third Qinshan Nuclear Power Plant suffer many faults,which cause the startup & backup transformer and the unit service transformer tripping frequently.

This article introduces a complex winding insulation system and its production process of XEC 788 mortor used in heavy self unload vehicle.

Large number of testings both in insulation system and technical processing have been carried out by using worldwide accepted methods,such as delaminating test,1min withstand test with voltage rise in step by step and thermal cycling.

Based on this,the insulation system of the improved windings is determined.

The paper presents modern transducer-fed synchronous motor s voltage lever, insulation and ventilation, which give a reference for electrical engineer.

This paper introduces a modern insulation system of stator and rotor winding coils of 550 MW hydrogenerator for Er Tan hydropower station.

5 kV vacuum interrupter, impulse voltage test is carried out to find out influential factors on its insulating performance and insulating structure is improved.

Ninety pieces of power cable samples with the same insulating structure were made using 5 kinds of insulation materials,and all of the samples were produced by the factory at the same producing process.