CG Power and Industrial Solutions Ltd – Earthing Transformer
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An earthing transformer – a 3-phase transformer connected to the power system to provide a neutral connection for earthing. It creates a neutral point for a network. Earthing transformers are designed to protect a system against phase-earth fault currents for a given fault time duration. These transformers are used to get a neutral point and provide earthing for non-grounding systems. For example, when delta windings between two transformers are connected, the system is not earthed. In such a system earthing transformer provides grounding and protection against earth faults. Ratings range from 100 to 1250 kVA with voltage grade from 6.6 to 66kV with standards followed being IEC, ANSI& IS.