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.
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