Current supply circuit of cutting drum motors on a mining machin

Details Current supply circuit of cutting drum motors on a mining machin Current supply circuit of cutting drum motors on a mining machin

1979-01-18

1981-05-26

Weldon, Ulysses

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

318 51, 318 59, 318 66, 318 67, H02P 154

Patent

active

042700728

ABSTRACT:
A cable extending onto a drum-cutter loader mining machine has divided branch cable sections to supply electrical current to the individual drive motors for each of two cutting drums. A branch switch coupled in each divided branch cable section and a thyristor controller is coupled in one branch cable section before the switch therein. Crossover lines bridge the branch switches in each divided branch cable section. Bridge switches in each of the bridging crossover lines are used together with the branch switches to deliver electrical current from the controller to either or, if desired, both of the separate drive motors.

REFERENCES:
patent: 3136535 (1964-06-01), Lanfermann
patent: 3753002 (1973-08-01), Jacobson et al.

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