CIRCUIT BREAKER TESTING

CIRCUIT BREAKER TESTING PROCEDURE: • EGIL is intended primarily for testing high-voltage circuit breakers at medium-level voltages. There must not, however, be more than one break per phase since the time channels are not galvanic ally isolated. Contact times are recorded for main contacts, pre insertion resistor contacts and auxiliary contacts. Coil currents are also recorded. • Besides the actual measurement values several parameters according to IEC standards are calculated and shown in the report, e.g. closing and opening time, difference between phases, over travel, CO and OC time (and others). 1. Ground EGIL using the included ground cable. Make certain that the circuit breaker is closed and grounded on both sides. 2. Connect the main contact cable set to EGIL and the circuit breaker. 3. Connect the auxiliary contact cable set to the a- and b-contacts on the operating mechanism.Connect the EGIL sequencer to the close- and trip coils and to the auxiliary voltage. 4. Remove the breaker’s ground connection on one side. 5. You are now ready to proceed with the test. Simply turn the MEASURE rotary switch and read the results. SEE THE PRINT OUT LIKE THIS THIS WE HAVE A CABLE LIKE THIS

WE HAVE A CABLE LIKE THIS