The IFDTM sensor is an internal fault detector installed in pole top and pad mounted distribution transformers. By detecting and indicating the presence of an internal transformer fault, the IFD helps prevent linemen from re-energizing faulted transformers. This unique device improves safety for linemen, simplifies the troubleshooting process, and speeds up outage restoration. Over 1.3 million IFDs are installed by over 550 safety and cost-conscious utilities across North America.
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