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Which formula is used to calculate EMF/phase in a ideal alternator? S3M5-253
Which rule is used to find the direction of induced emf in an alternator? S3M5-254
What is the name of the part of alternator? S3M5-255
What is the formula to calculate emf equation of an alternator? S3M5-256
How alternators are rated? S3M5-257
Which formula is used to calculate the percentage voltage regulation in alternator? S3M5-258
What is the supply frequency of an alternator having 6 poles runs at 1000 rpm? S3M5-259
Calculate the speed of an alternator having 2 poles at a frequency of 50 Hz? S3M5-260
What condition the lamps become dark in dark lamp method of parallel operation of two alternators? S3M5-261
How to compensate de-magnetizing effect due to armature reaction in an alternator? S3M5-262
What is the use of synchroscope? S3M5-263
What is the name of the equipment that provides D.C to the rotor of alternator? S3M5-264
What is the purpose of damper winding in alternator? S3M5-265
Which condition is to be satisfied before parallel operation of alternators? S3M5-266
What is the speed of an alternator connected with a supply frequency of 50 Hz at rated voltage having 4 poles? S3M5-267
What condition the two lamps become bright and one lamp dark during paralleling of two alternators? S3M5-268
What causes the terminal voltage of an alternator reduces, if the load increases? S3M5-269
What is the purpose of using damper winding in AC generator? S3M5-270
What is the type of alternator? S3M5-271
Calculate the speed in r.p.s of the 2 pole, 50Hz alternator? S3M5-272
What is the advantage of using rotating field type alternator? S3M5-273
What is the effect in increasing the field excitation current in alternator? S3M5-274
Calculate the pitch factor (KP) for a winding having 36 stator slots 4 pole with angle $$\rm{(\alpha)~is~30^\circ}$$ in alternator? S3M5-275
What is the cause for hunting effect in alternators? S3M5-276
Calculate the voltage regulation in percentage if the load is removed from an alternator, the voltage rises from 480V to 660V? S3M5-277
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