How to deal with the fault of generator stator?

generatorstatorTroubleshooting method: 1. Found that the stator is short-circuited to the front circuit first put the generator's stator andgeneratorRemove, wash the winding with alcohol. If it is found that the generator has a disconnection, then you need to rewise.
2. Sometimes the generator may also have a short-circuit failure of the turns, first check whether the stator wiring is loose. The 间 protection uses a dedicated PT, wherein the node is connected to the generator neutral point, so the 3U0 can reflect the imbalance between the three-phase, once the turret is short circuit in a certain phase, the phase induction potential must be reduced, due to the generator The PT neutral dot potential is fixed, so it is inevitable that there is 3U0 in PT three times. But only when the single phase is grounded, only the generator neutral point potential is offset, the three-phase potential is still balanced.
3. Since the generator neutral point is the non-ground system, when a single phase is grounded, the current flowing through the fault point is simply smaller in the generator system (generally required less than 2A), which is not more harmful to the generator. Therefore, the generator can do a short time. However, if it is not treated in time, it will be possible to burn the stator core, and even develop a short circuit or a short circuit of the turns, so the maximum running time after the stator is not more than 30 minutes, during which the operator during this period.

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