Explain the reason for the following in a power generator. (a) Armatu

1.	Explain the reason for the following in a power generator. (a) Armature is used as stator. (b) Strong electromagnets are used as field magnet. (c) Three armature coils are arranged at 120º angular separation.
Answer» Reasons for the following in a power generator : (a). Armature is used as a stator → As electric energy at high potential, without any insulation problem or sparking can be generated. (b). Strong electromagnets are used as field magnets . → The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly charged by controlling the amount of electric current in the winding. (c). Three armature coils are arranged at 120° angular separation. → To provide phase difference of 120°.

Explain the reason for the following in a power generator. (a) Armature is used as stator. (b) Strong electromagnets are used as field magnet. (c) Three armature coils are arranged at 120º angular separation.

Answer»

Reasons for the following in a power generator :

(a). Armature is used as a stator

→ As electric energy at high potential, without any insulation problem or sparking can be generated.

(b). Strong electromagnets are used as field magnets .

→ The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly charged by controlling the amount of electric current in the winding.

(c). Three armature coils are arranged at 120° angular separation.

→ To provide phase difference of 120°.

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