Electromagnetic Forces and Mechanical Responses of Stator Windings before and after Rotor Interturn Short Circuit in Synchronous Generators

Table 2

Key parameters of MJF-30-6 prototype generator.

Parameter	Value
Rated capacity	30 kVA
Rated voltage	400 v
Rated rotating speed	1000 rpm
Number of pole pairs	3
Connection mode of stator winding	2Y
Coil pitch	8
Power factor	0.8
Operating temperature	75°C
Indexing slots of rotor	42
Real slots of rotor	30
Number of stator slots	54
Rated exciting current	1.8 A
Number of turns in per stator slot	72 turns
Number of turns in per rotor slot	88 turns
Length of rotor	220 mm
Stack length	220 mm
Inner diameter of stator	1230 mm
Outer diameter of stator	2400 mm
Inner diameter of rotor	500 mm
Outer diameter of rotor	1228.3 mm
Air-gap length	0.85 mm
Stacking factor	0.95