Induction Motors - No. of Poles and Synchronous vs. Full Load Speed

Synchronous and full load speed of amplitude current (AC) induction motors.

Speed (rpm)
2	3600	3500	3000	2900
4	1800	1770	1500	1450
6	1200	1170	1000	960
8	900	870	750	720
10	720	690	600	575
12	600	575	500	480
14	515	490	429	410
16	450	430	375	360
18	400	380	333	319
20	360	340	300	285
22	327	310	273	260
24	300	285	240	230
26	277	265	231	222
28	257	245	214	205
30	240	230	200	192

Example - Speed of Electric Motor

A motor with 4 poles runs with frequency 50 Hz. The synchronous speed is 1500 rpm and the typical full load speed is 1450 rpm. The slip is the difference between synchronous and load speed - 50 rpm.

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Induction Motors - No. of Poles and Synchronous vs. Full Load Speed

Synchronous and full load speed of amplitude current (AC) induction motors.

Example - Speed of Electric Motor

Related Topics

Related Documents

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

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Scientific Online Calculator

Speed (rpm)
Number of Poles	Frequency (Hz, cycles/sec)
	60		50
	Synchronous	Full Load	Synchronous	Full Load
2	3600	3500	3000	2900
4	1800	1770	1500	1450
6	1200	1170	1000	960
8	900	870	750	720
10	720	690	600	575
12	600	575	500	480
14	515	490	429	410
16	450	430	375	360
18	400	380	333	319
20	360	340	300	285
22	327	310	273	260
24	300	285	240	230
26	277	265	231	222
28	257	245	214	205
30	240	230	200	192