International Library of Technology · Scranton, International Textbook Co. · leaf 264
he series-incandescent street-light-ing devices used by the WestinghouseCompany are considerably differentfrom the two previously described, inregard to the method of compensa-ting for burned-out lamps. Ordinary50-volt or 100-volt lamps are used.For example, on a 1,000-volt cir-cuit, 20 50-volt or… … Fig. 40.
Electrical engineering
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