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Title: |
1909 Article-General Electric Co., 2 H. P. Electric Motor |
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Source: |
Cyclopedia of Applied Electricity, 1909 pgs 435-438 |
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Insert Date: |
11/8/2011 7:10:36 PM |
General Electric Company — Constant-speed motors of medium capacity are manufactured by this company, using the frames of their 6-pole belted generators. The slow-speed line furnishes sizes from 185 to 20 H. P. and the moderate-speed, from 150 to 30 H. P. When fitted with interpoles or commutating poles, as the General Electric Company calls them, these machines are wound for adjustable-speed motors with speed variations of 1½ to 1, 2 to 1, or 3 to 1 as desired, in sizes 20 to 130 H. P., intermittent rating. For the smaller sizes, they manufacture a line of motors of the general appearance shown in Fig. 87. This line consists of eleven different frames, the largest three being 4 pole and the other bipolar. They are constant speed, shunt, or compound wound. Wound for slow speeds they range from ¾ to 15 H. P. and for moderate speeds from ½ to 15 H. P. The 4-pole frames, when so wound, become adjustable-speed motors with speed variations of 1½ to 1, 2 to 1, or 3 to 1. They then are fitted with commutating poles and become from 5 to 27½ H. P., intermittent ratings. One of these motors is shown in Fig. 88. All of these various lines are wound for 110, 230, or 550 volts, can be arranged for any desired mounting, and are manufactured as open, semi-enclosed, or enclosed. The direct-current mill motors gotten out by the General Electric
Company are enclosed, octagonal frame, and fire-proof construction in 5 sizes from 30 to 150 H. P., at 220 or 500 volts. They are series, shunt, or compound wound as desired. Another complete line of motors is their railway motor, the latest forms of which also use commutating poles. They are wound for 600-volt circuits, the construction adopted for this class of machines being clearly shown in Figs. 89 and 90. Besides their larger machines this company also puts upon the market a complete line of fan motors and small power motors from about 1/100 up to 1/10 H. P., adapted to a great variety of uses. |
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1909 General Electric Co., 2 H. P. Electric Motor
1909 Article-General Electric Co., 2 H. P. Electric Motor Driving Pipe Machine
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