Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 161
^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,… … Fig. 240.—Connections for a multi-switch starter used with parallel starting resistances.Closing the switches in rotation from left to right, connects more and more resistance in paralleluntil up to the last step, where the motor is connected direct to the line. RHEOSTATS AND CONTROLLERS 151
Electric wiring
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