. The Street railway journal . <)Rl)l^.\K^• 1 i<():\ w iikkj. taking either a. c. or d. c. CURRENT sisting of two motors connected permanently in series; sofor the purpose of control tlw-se groups may be consideredas single units in a two-motor equipment. Two auto-trans-formers are used on the locomotives, and an automatic over-load and no-voltage circuit breaker is placed between the ELECTRIC LOCOMOTIVES USING PANTAGRAPH TROLLEY ON HIGH-TENSION,ALTERNATING-CURRENT CIRCUIT commutating switch is automatically shifted to the alter-nating-current position and the small transformer furn
. The Street railway journal . <)Rl)l^.\K^• 1 i<():\ w iikkj. taking either a. c. or d. c. CURRENT sisting of two motors connected permanently in series; sofor the purpose of control tlw-se groups may be consideredas single units in a two-motor equipment. Two auto-trans-formers are used on the locomotives, and an automatic over-load and no-voltage circuit breaker is placed between the ELECTRIC LOCOMOTIVES USING PANTAGRAPH TROLLEY ON HIGH-TENSION,ALTERNATING-CURRENT CIRCUIT commutating switch is automatically shifted to the alter-nating-current position and the small transformer furnishingcurrent to the control system is cut into circuit, leaving thelocomotives ready to start. The unit switches are essentially similarto those used on direct-current control magnets are of the alternating-current type wound for 200 volts, andoperate on about 80 volts direct current,but in both cases will operate down toabout one-half voltage. These magnetsserve to admit air under heavy pressureto the cylinders
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
