Over-voltage protection relay KPFV51x series

under-voltageunder-frequencyover-frequency

KPFV51x - SINGLE PHASE - FREQUENCY AND VOLTAGE GUARD Under and Over Voltage and Frequency Protection Adjustable Voltage and Frequency Deviation Set points "Pathfinder" function Optional very fast analogue output (<50mS), (F-versions) Description KPFV51x is for use on single phase systems. KPFV51x provides precision monitoring of frequency and line voltage on any generator system. When trip delays are set to zero (0,1sec) operation corresponds with G59 requirements. True RMS measurement not affected by heavily distorted waveforms provides highest up precision (1.0%) protection. Less than 50mS short circuit detection. R1 (under & over frequency) and R2 (under & over voltage) activates when set level is exceeded and time delay has elapsed. R3 activates when R1 or R2 is activated and can be used as a common alarm. User settable trip levels and delays. Colour of LEDs indicates alarm status. LEDs flash during count-down. The "Pathfinder" indicates the phase causing the trip by flashing pattern of the relevant LED. The F-versions have an fast response mA output signal proportional to the Hz range. Pathfinder Function The "Pathfinder" function identifies the phase(s) causing the trip by the flashing pattern of the relevant LED(s).