Test setups for the development of high voltage circuit breakers for high short circuit capacities
Abstract
A number of test setups and procedures are described for measuring and simulating the current and voltage conditions prevailing in short circuit breakers designed to interrupt short circuit currents from 80 to 100 kA. A synthetic test circuit was successfully developed, using the principles of both voltage and current injection. A capacitance current injection procedure allows for the establishment of the influence of iron in the magnetic circuit on the prospective transient recovery voltage of the breaker. Methods for measuring the post-arc current are indicated, and developed meshed grid and tube shunts are described. Synthetic test circuits are presented which are suitable for testing the capacitive switching capabilities of breakers.
- Publication:
-
Final Report
- Pub Date:
- October 1981
- Bibcode:
- 1981siem.rept.....P
- Keywords:
-
- Circuit Breakers;
- High Voltages;
- Performance Tests;
- Short Circuits;
- Electric Arcs;
- Electric Networks;
- Electrical Measurement;
- High Current;
- Transient Response;
- Electronics and Electrical Engineering