Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 142
o this equipment. Remembering that the system is grounded,it wdll be seen that it would not be safe to connect the switch andcircuit breaker in series on the positive side. Since one side isalready grounded, the chances of a ground which would causetrouble are very much increased. If such a ground… … A/ S^^ i-To middle studof3f on nextgenera/or panel TO LIGHTSFig. 22. Wiring Diagram for a 275-Volt Mining Generator Panel and the series field. Thus, protection is obtained equal to that onthe two-wire ungrounded switchboard described previously. Fig.22 shows the wiring diagram of a 275-volt mining…
Electrical engineering
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