The ABB RET670 is a transformer protection Intelligent Electronic Device (IED) designed to protect transformers and shunt reactors from various faults.
It is a versatile device that can be customized or pre-configured to fit the specific needs of a power system application.
- Differential protection: This function protects the transformer from internal faults by comparing the currents entering and leaving the transformer.
- Distance protection: This function protects the transformer from faults on the transmission line by measuring the impedance to the fault.
- Current protection: This function protects the transformer from overload and short-circuit faults.
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