The protection relay can be parameterized for use with three-phase and single-phase transformers. The specific c application can be chosen by parameterization. In this way, an optimal adaptation of the relay to the protected object can be achieved. Optionally, a low or high-impedance restricted ground-fault protection, a negative-sequence protection, and a breaker failure protection can be used.
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In this way an optimal adaptation of the relay to the protected object can be achieved. Optionally, a low or high-impedance restricted earth-fault protection, a negative-sequence protection and a breaker failure protection can be used.
With external temperature monitoring boxes thermo-boxes temperatures can be measured and monitored in the relay. Therefore, complete thermal monitoring of a transformer is possible, e. Other functions are available twice: ground-fault differential protection, breaker failure protection and overload protection.
Furthermore, up to 12 user-defined flxible protection functions may be activated by the customer with the choice of measured voltages, currents, power and frequency as input variables. The relays provide easy-to-use local control and automation functions. The integrated programmable logic CFC allows the users to implement their own functions, e.
User-defined messages can be generated as well. The flexible communication interfaces are open for modem communication architectures with control system.
Transformer differential protection
7UT63 Differential Protection Relay
Siemens SIPROTEC 7UT63 series Manuals