. Electric railway journal . Not less than an average of 10 seconds for each 528 ft. per cent. 1200 ft. ; being a portion of acontinuous grade of approxi-mately ft. The motors were required to operate at voltages between300 and 750 without damage to any part, and to withstandwithout flash-over or puncture the momentary surges inpotential that occur on the system. Additional details of motor construction requirementswere the following: Motors to be outside hung, and to have a single nose sus-pension with a remov-able wearing motor leads andinternal
. Electric railway journal . Not less than an average of 10 seconds for each 528 ft. per cent. 1200 ft. ; being a portion of acontinuous grade of approxi-mately ft. The motors were required to operate at voltages between300 and 750 without damage to any part, and to withstandwithout flash-over or puncture the momentary surges inpotential that occur on the system. Additional details of motor construction requirementswere the following: Motors to be outside hung, and to have a single nose sus-pension with a remov-able wearing motor leads andinternal connect-ing wires to be securedto the shell by cleatsfastened with tap boltsand lock to be con-structed to withstanda car speed of 35 damage to anypart when the wheelsare worn to 24 in. indiameter. Armaturesto be constructed sothat the shafts may be removed readily without disturbingthe commutator or winding. The banding of the arma-tures to be flush with the core and wrapped over a continu-. CONNECTION END OF CROSS-SEATHEATER
Size: 1694px × 1475px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
