Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 154
the relay may be CURRENT AND PRESSURE LIMITING DEVICES 1,673 connected in series in the motor leads. If the voltage or capacity ofthe motor make this arrangement inexpedient, the relay may be placedin the secondaries of current or pressure transformers connected in themotor leads. Underload relays… … ■WV CIRCU1TBREAKER t)0 MOTORGENERATOR H|l|l|l|l|l|l|l|l|lSTORAGE BATTERY FlG. 2,344.—Diagram showing storage battery and charging dynamo protected by doublepole single coil underload circuit breaker. In operation, the circuit breaker discon~necis the battery uhen jully charged, and protects the…
Electrical engineering
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