The brushless generator is more and more accepted by users for its superior performance such as stable voltage, simple maintenance, and stable quality. Although it has such superior performance, if it wants to use less trouble, it is necessary to do maintenance work normally. Once the brushless generator fails, it is not only production but also a waste of money.
1. Under normal circumstances, the failure of the brushless generator mainly comes from the generator stator winding and the excitation winding, and the stator winding is short-circuited between phases, which is the most harmful to the generator. Due to the large phase-to-phase short-circuit current, the current generated at the fault point will break through the insulation, the generator core, and the coil windings, even the generator set.
2. The inter-turn short circuit of the stator winding of the brushless generator, this fault will generate a large circulation. Causes the temperature of the fault to rise and damage the insulation. It is possible to become single-phase ground or phase-to-phase short.
3. When the stator winding is single-phase grounded, when the stator winding is single-phase grounded, the compensation current will flow through the generator set. If it is long, the generator core will be partially melted.
4. Loss of magnetism of the brushless generator, the loss of magnetism of the brushless generator will cause the generator to not generate electricity, affecting the safety of the electrical equipment in operation.
5. The excitation circuit is grounded. One of the grounding problems is not too big, but there is no circuit for fault current circulation. When two points are grounded, the fault current forms a loop, which is the excessive fault current of the excitation winding, which makes the excitation winding or breakdown, and also Will destroy the symmetry of the magnetic flux, causing the generator set to vibrate.