International Library of Technology · Scranton, International Textbook Co. · leaf 19
urrent supplyto the lines. Some of the engines in many power stations §14 ELECTRIC TRANSMISSION. must be kept turning all the time. The simplest means ofconnection is to supply steam to each engine from an inde-pendent boiler, ,but the objection to this is that, in theevent of trouble with any… … o^l^tt Fig. 1. valves v, v, which, with the valves z\ at the engines andthose at the boilers v2, afford a means of disconnecting anyengine or boiler without affecting the rest of the plant.This system is the cheapest reliable one, but is not the safest,because there is no duplication of pipes, and…
Electrical engineering
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