. Electric railway journal . e motor-generator sets are substantially similar tothose furnished for heavy electric railroad work in theUnited States. The generators are designed for 1,500volts per commutator and are permanently connectedin series for 3,000-volt operation. They are separatelyexcited from a 125-volt, direct-current exciter mountedat one end of the set. The series field is designed toprovide flat compounding from no load to 150 per centload. They are equipped with commutating poles andcompensated pole-face windings to insure sparklesscommutation at all loads. A load of three time
. Electric railway journal . e motor-generator sets are substantially similar tothose furnished for heavy electric railroad work in theUnited States. The generators are designed for 1,500volts per commutator and are permanently connectedin series for 3,000-volt operation. They are separatelyexcited from a 125-volt, direct-current exciter mountedat one end of the set. The series field is designed toprovide flat compounding from no load to 150 per centload. They are equipped with commutating poles andcompensated pole-face windings to insure sparklesscommutation at all loads. A load of three times nor-mal rating can be carried for five minutes without in-jury, and under tests made before shipment loads offrom five to six times normal were carried withoutsparking. All of the fields of both generators are connectedto the low side to reduce the possibility of in-jury from high voltage. A simple form of flash bar-rier is provided for the commutators similar to thatsupplied on other high-voltage, direct-current
Size: 1228px × 2034px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
