Protective system for a capacitor voltage transformer

Details Protective system for a capacitor voltage transformer Protective system for a capacitor voltage transformer

1973-11-06

1976-03-30

Trammell, James D.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324126, H02H 716

Patent

active

039477258

ABSTRACT:
Capacitive voltage transformers for measurement of voltage for metering and protective relay purposes on high voltage power transmission systems including a protective system therefor which consists of modifying the inductive value of the inductance in the circuit in response to a condition of the circuit which is abnormal to the normal operation thereof. The inductive value is varied, in one instance, by short circuiting the winding thereof, short circuiting occurring through the use of a triggering device operated in response to an over-voltage in the system. In another instance, the inductive value is varied by providing a further coil magnetically coupled to the inductance and which further coil is energized upon triggering of a device in circuit therewith upon abnormal operating conditions of the line in response to such abnormal condition.

REFERENCES:
patent: 2504860 (1950-04-01), Marbury
patent: 2756414 (1956-07-01), Doremus
patent: 3497771 (1970-02-01), Korkka
patent: 3517263 (1970-06-01), Okamura et al.
patent: 3530502 (1970-09-01), Nishidai

Affiliated with

Also associated with

Rating

Protective system for a capacitor voltage transformer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Protective system for a capacitor voltage transformer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protective system for a capacitor voltage transformer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-523317