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High-impedance (HIZ) fault detection
Terminations: Available with local or remote terminations
and thermal protection
ensuring that the output signals are accurate
AAB RET521 Transformer Protection Terminal Servo Valve High-impedance (HIZ) fault detectionDescription The AAB RET521 is a transformer protection terminal designed for fast, selective, and reliable protection of power transformers in utility and industrial networks. Specifications Application: Transformer differential and backup protection Rated Voltage: Supports common medium and highvoltage transformer applications Current Inputs: Multiple CT channels for differential and overcurrent functions Voltage Inputs: VT channels for voltagebased
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