Discharge resistor

Details Discharge resistor Discharge resistor

1980-03-07

1982-03-09

Albritton, C. L.

Electrical resistors

With inductance-reducing

310 72, 338 62, 338282, 338304, H01C 302

Patent

active

043192165

ABSTRACT:
A discharge resistor adapted to be mounted on a rotatable shaft of a dynamo-electric device comprises a pair of spirally wound, insulated resistor elements and means for supporting these elements approximately coaxially with the shaft. Each of the resistor elements is spirally wound in a flatwise manner with a bore having an effective diameter greater than that of the shaft, and insulation layers are provided between adjacent turns thereof. The resistor elements are arranged and connected electrically in series such that the inductive impedance appearing across the respective resistor elements effectively cancel each other.

REFERENCES:
patent: 745759 (1903-12-01), Baehr
patent: 3011083 (1961-11-01), Jacob
patent: 3240968 (1966-03-01), Lee
patent: 3371235 (1968-02-01), Hoover
patent: 3575622 (1971-04-01), Nielson et al.
patent: 3925695 (1975-12-01), Raby
GEC Machines Limited catalog, "Large Synchronous Motors, Type A, Brushless", Reference No. 3371-3, p. 6.
BBC Brown Boveri, "Three Phase Synchronous Motors, Type WM400 . . . 1000 with 4-14 Poles, for High Voltage", Publication No. CH-T5432E, pp. 10-13.

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