Emergency operation of a static Scherbius device

Details Emergency operation of a static Scherbius device Emergency operation of a static Scherbius device

1975-04-15

1976-08-31

Rubinson, Gene Z.

Electricity: motive power systems

With flywheel or massive rotary member

318237, 317 13R, H02P 736

Patent

active

039783812

ABSTRACT:
The commutating-type thyristor inverter in a static Scherbius device including a wound induction motor is protected against damage upon the occurrence of an emergency condition, in the form of a failure or reduction of the power voltage, by shifting the commutation angle of the inverter to a minimum value and reducing the inverter current to zero, and then interrupting the supply of commutating pulses to the inverter thyristors, whereby the inverter stops operating. After the emergency condition is removed, the commutating angle of the inverter is gradually increased to its normal value to restore the inverter to normal operation. If during the emergency condition the motor speed falls below a predetermined value, then the motor is accelerated through a starting resistance to a speed above this value before normal operation of the inverter is resumed.

REFERENCES:
patent: 2236984 (1941-04-01), Alexanderson
patent: 2707258 (1955-04-01), Boyer et al.
patent: 3136937 (1964-06-01), Miljanic
patent: 3515969 (1970-06-01), Magnuson et al.
patent: 3667012 (1972-05-01), Kilgore
patent: 3683251 (1972-08-01), Pisecker

Affiliated with

Also associated with

Rating

Emergency operation of a static Scherbius device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Emergency operation of a static Scherbius device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergency operation of a static Scherbius device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1817989