Voltage protection relay PVV series
differentialtime delayadjustable

voltage protection relay
voltage protection relay
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Characteristics

Measured/monitored value
voltage
Other characteristics
differential, time delay, adjustable
Trigger voltage

Max.: 416 V

Min.: 87 V

Description

The set point adjustment range is 25%, operating between 75% and 100% of the nominal supply for under voltage and between 100% and 125% for the over voltage. The adjustable differential setting range is 1% to 15% and can be used to reduce nuisance tripping if the measured signal is noisy or unstable. In case the measured voltage moves outside the set point limit the protector trips, illuminating the red LED indicating a fault condition. An adjustable time delay is provided to eliminate premature operation on short duration voltage fluctuations. During this delay period the red LED will flash. The protectors draw their operating power from the measured inputs. Three-phase products monitor the voltage level for each phase and are not phase sequence sensitive

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