Transformer Protection Relay TPR-104 series is designed for the safe operation of cast resin/dry type transformers. It is suitable for a marshalling box and control room application. It is designed for long and trouble-free operation under extreme conditions associated with a transformer.

Standard Features

• IP-55 Enclosure against severe environmental conditions.
• 85-440 VAC/DC power supply range performs better in a phase imbalance condition.
• Temperature scanner for three windings and the core.
• Four output relays (1 C/O) for Alarm, Trip, Fan and Fault.
• Fan Exerciser facility ensures the operation of the fan for long life with less maintenance.
• Maximum temperature storage capacity and reading can be recalled after the power fails.
• A facility is provided to reset the maximum temperature for fresh recordings.
• Fault indication is provided for Sensor open, short, over or under temperature conditions.

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