IFD Internal Fault Detector is a simple, inexpensive sensor used in pole type and padmounted transformers that detects and indicates the presence of an internal fault inside the transformer. the IFD deters a lineman from re energizing a faulted transformer, thereby reducing hazards, troubleshooting time, and outage durations. the IFD provides standard pressure relief, and is installed in new transformers, and can, Organic Food, Grocery Foods ...