How Many Types Of Generator Troubles

  • Three Types Of Generators Troubles

⇒ Generator Fails To Generate the Voltage
⇒ Sparking On The Commutator
⇒ Heating Of The Generator
How Many Types Of Generator Troubles

1). Generator fails to generate the voltage-
For this trouble the possible reasons are as follows: 

→ Neutralization of residual magnetism of the field poles.
→ The brushes are not having proper contact with the commutator.
→ The position of the process is not proper.
→ The connections are wrong.
→ There is an open circuit in the armature, field or regulator (in case of a series generator).
→ There is no proper pressure on the brushes.
2). Sparking at the commutator- for this trouble the possible reasons are as follows:
→ The commutator segments are not properly leveled.
→ The brush holder is not insulated from The Rocker.
→ The commutator is not properly cleaned.
→ There is cross (cut) in the armature winding.
→ There is excessive pressure on the brushes.
→ The brush corners are turned.
→ The brushes are not on the neutral plane.
→ The polarity of interpoles is reversed.
→ The armature is grounded or short-circuited.
→ The machine is overloaded.
3). Heating of the generator- for this trouble the possible reasons are as follows:
→ There is heavy sparking at the commutator.
→ The bearing is defective.
→ there is a short circuit in the field or armature winding.
→ The machine is overloaded.
→ Weak insulation in the limitations.

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