To simplify the tracking of ground faults on floating dc-powered control systems, rent the Megger Battery Ground Fault Locator (BGL) from Protec.
The Megger BGL operates by injecting a 25 Hertz signal between the battery system and the ground. The resulting current is tracked by a clamp-on current probe, and the magnitude of the injected signal is only 3.5 volts and will not cause any interference with the operation of sensitive protective relays on the system.
The Ground-Fault Locator’s circuitry measures the 25 Hertz power dissipated in the grounding resistance and calculates the value of the grounding resistance from knowledge of the applied voltage, a method that allows the instrument to effectively eliminate the effects of charging current due to capacitance on the battery system or surge suppression capacitors that may be installed on the system.
The Megger BGL offers a wide dynamic range that allows simultaneous tracking of two or more ground faults that may be different in value. The injected signal is low enough in amplitude that it should not interfere with the operation of relays, even of the sensitive variety, under normal operation.
Related electrical test equipment available for rent from Protec:
Amprobe DM-III Multitest Power Quality Recorder
Bender LT3000 Line Isolation Monitor (LIM) and GFCI Tester
Fluke 1625-2 GEO Earth Ground Tester
This electrical test equipment is available for rent, lease, or purchase from Protec Equipment Resources. We are here to help you with your testing equipment needs.
Protec’s Calibration Lab offers accurate and affordable calibration services for all makes and models of electrical test and measurement equipment. Contact us today for a quote.
