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AC generators
AC generators
Gujarat Forgings Limited, based in Rajkot, manufactures generating sets most suitable for uninterrupted power source for industries, cinema houses, commercial complexes and domestic lighting purposes. The Gujarat Forgings Limited offers class A2 governing diesel generating sets with single phase and three phase starting from 2 KVA to 20 KVA at 50 Hz frequencies under their brand name "Fieldmarshal". The AC generators through a high quality "HRC" as well as "Type Type" coupling are coupled to form suitable diesel engine with standard ratings for single phase 240 V, unity p.f from 2 to 12.5 KVA, and for three phase 415V, 0.8 p.f from 5 to 20 KVA. The generator field retains a high degree of residual magnetism to ensure that voltage will always build up at starting. The voltage regulation is maintained within five percent of rated voltage and at specified power factor. The speed variation is kept within 4.5 percent of rated speed of prime mover from full load to no load, the full load speed being the rated speed of prime mover. Features: * AC generators are tested as per IS: 4722:1992 * Revolving armature for output collection * Stationary stator is of robust construction and made of mild steel and carries four poles * Each pole is provided with main and auxiliary field windings * Class F insulation is used in construction * Windings are vacuum impregnated, duly backed at the proper temperature and then coated with gel (Red Beetol) to prevent the ingress of moisture * End shields are of cast iron * Screen protection is provided to protect armature winding, field winding and other accessories from dust * Generators are self-excited and self-regulated.
