Electrical Machines - Basic vocational knowledge (Institut für Berufliche Entwicklung, 144 p.): 3. Execution of rotating electrical machines: 3.1. Size

Electrical Machines - Basic vocational knowledge (Institut für Berufliche Entwicklung, 144 p.)

3. Execution of rotating electrical machines

		3.1. Size
		3.2. Designs
		3.3. Degree of protection
		3.4. Cooling
		3.5. Mode of operation
		3.6. Heat resistance categories
		3.7. Connection designations of electrical machines
		3.8. Rotating electrical machines in rotational sense
		3.9. Rating plate

3.1. Size

Figure 24 shows the standard dimensions of rotating electrical machines.

Figure 24 - Normed dimensions of rotating electrical machines

1 Shaft and length (drive shaft), 2 Distance between shaft and clearance hole, 3 Distance of clearance holes (longitudinal), 4 Distance of clearance holes (end shield), 5 Distance of clearance holes (transverse), 6 Diameter (clearance holes), 7 Height to shaft centre, 8 Total height

In order to guarantee interchangeability of various machines the “International Electrotechnic Commission” (EEC) has established a uniform norm for sizes which are designated by figures ranging from 56 to 400. The cited numerals simultaneously indicate the axle height of the respective machines,

Survey 6 - Dimensions

h
mm
56	63	71	80	90	100	112	132	160
18	200	225	250	280	315	355	400