Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 161
he line. The switches are mechanically interlocked so that they canonly be closed in the right order, and each one is held closed by the one preceding it. Switch1 is held by the no-load release, and the last switch, when open, short-circuits the no-loadrelease at the point 0; therefore, when… … ^AAA—I —^AAMA/^—I O^ Fig. 239.—Connections for multi-switch starter equipped with no-load and over-loadreleases. The starter operated precisely as the one shown in Fig. 238. An excess of current inthe main circuit will close the over-load relay, G, and short-circuit the no-load release, M,…
Electric wiring
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