GENERATOR SELECTION TABLE BASED ON MOTOR POWER

Recommended generator capacities for Direct-On-Line and Star-Delta starting

MOTOR POWER		GENERATOR POWER DIRECT-ON-LINE START
HP	kW	kW	kVA
3	2.2	6	7.5
4	3	8	10
5.5	4	10	12.5
7.5	5.5	12.5	15.6
10	7.5	15	18.8
12.5	9.2	18.8	23.5
15	11	22.5	28
17.5	13	26.5	33
20	15	30	38
25	18.5	40	50
30	22	45	57
35	26	52	65
40	30	60	75
50	37	75	94
60	45	90	112
70	51.5	105	131
75	55	120	150
90	66	135	170
100	75	150	190
125	92	185	230
150	110	210	260
180	132	260	323
200	147	280	360
225	165	325	404
250	185	365	454
275	200	390	485
300	220	430	535
330	240	470	584
360	265	520	646

MOTOR POWER		GENERATOR POWER STAR–DELTA START
HP	kW	kW	kVA
–	–	–	–
4	3	8	7.5
5.5	4	8	10
7.5	5.5	10.8	13.5
10	7.5	14	17.5
12.5	9.2	17.2	21.5
15	11	20.5	25.5
17.5	13	23.6	29.5
20	15	27	34
25	18.5	33	42
30	22	40	50
35	26	45	57
40	30	52	65
50	37	65	81
60	45	77	97
70	51.5	90	112
75	55	102	128
90	66	115	144
100	75	128	160
125	92	158	198
150	110	190	237
180	132	228	284
200	147	254	316
225	165	285	354
250	185	320	398
275	200	345	429
300	220	380	472
330	240	415	516
360	265	458	569

NOTE: This table should be used as a reference for generator selection according to motor starting method. Values are approximate; manufacturer catalogs take precedence.

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