Analyser for substation circuit breakers
November 2014
Maintenance, Test & Measurement, Calibration
The EGIL from Megger is an automatic timer and motion analyser for medium and high voltage substation circuit breakers. It is intended for use on circuit breakers with one contact per phase. EGIL incorporates features commonly found on more complex test systems, but is designed to be smaller, simpler to use and less expensive than other similar sets. Its price makes it attractive to smaller utilities and it is an ideal supplementary product for maintenance departments at larger power companies and for high voltage maintenance contactors.
To aid ease and speed of use, the unit has a built-in sequencer that automatically runs the selected breaker operating sequence while making the appropriate measurements and recording the results. In addition, menu-driven procedures invoke sensible default settings, thereby eliminating the need for time consuming presetting. Megger’s EGIL test set offers three timing channels for the circuit breaker main contacts. Main contacts and pre-insertion resistor contacts can be timed on the same channel, with the results recorded graphically and numerically on the integral printer. Results are also shown numerically on the large and easy to read display.
When test sets have the SDRM option installed, the SDRM201 module extends the facilities to allow accurate resistance measurements to be made on circuit breaker contacts and other low resistance devices. When used with the test leads provided, the SDRM201 is capable of supplying an instantaneous current of 200 ADC, falling to 140 A after 1s. Multiple tests can be run with only a short waiting time between them.
For more information contact Stuart Ashton, Surgetek, +27 (0)11 792 1303, info@surgetek.co.za, www.surgetek.co.za
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