What relays does the DV require when operating in distance mode?

What relays does the DV require when operating in distance mode?

• A. H and V in the clear
• B. HV ahead and HV in advanced
• C. V in danger and HV de-energized
• D. TP energized and DV in cycle check

Answer: (B)

In distance mode, the DV (Distance Relay) requires specific relay configurations to ensure proper operation and fault detection. The correct choice states that HV ahead and HV in advanced are needed. When the DV operates in distance mode, it relies on the HV (High Voltage) relays for successful detection and measurement of impedance. "HV ahead" refers to the condition where the high voltage relay at the sending end provides an indication of the system status and is critical for accurate fault sensing. "HV in advanced" reflects the relay's capability to acknowledge incoming conditions and prepare for potential fault scenarios. This combination allows the distance relay to interpret the electrical parameters, such as voltage and current, effectively. With these relays in the mentioned states, the DV can accurately assess distances to potential faults on the transmission line, thereby enhancing the reliability and protection of the electrical system.

In distance mode, the DV (Distance Relay) requires specific relay configurations to ensure proper operation and fault detection. The correct choice states that HV ahead and HV in advanced are needed.

When the DV operates in distance mode, it relies on the HV (High Voltage) relays for successful detection and measurement of impedance. "HV ahead" refers to the condition where the high voltage relay at the sending end provides an indication of the system status and is critical for accurate fault sensing. "HV in advanced" reflects the relay's capability to acknowledge incoming conditions and prepare for potential fault scenarios.

This combination allows the distance relay to interpret the electrical parameters, such as voltage and current, effectively. With these relays in the mentioned states, the DV can accurately assess distances to potential faults on the transmission line, thereby enhancing the reliability and protection of the electrical system.