Digital Voltage Protection Relay Selec 900VPR-2 SELEC

Type : 900VPR-2
Size : 35 X 90mm
Description :
Digital Voltage Protection Relay
– Input connection : 3phase/4Wire, 3phase/3wire
– Operating Voltage :
160 to 300VAC (L-N), 280 to 520 (L-L), 50/60Hz
– Output contact : 2 x 1 C/O (SPDT)
rating : NO/5A, NC/3A, 250VAC
– Trip setting :
Under / Over voltage :
280 to 520VAC L-L ( for 3phase/3wire system)
160 to 300VAC L-N ( for 3phase/4wire system)
Under / Over Frequency : 45 – 65Hz
Phase asymmetery : 5 – 99.9%
– Trip time setting :
Power On Delay : 2 – 99.9sec
Trip time delay : 0 – 99.9sec
Recovery time delay : 0 – 99.9sec
Response time : < 200ms
– Accuracy : Voltage : 1% of set value.
Frequency : 0.3Hz
– Accuracy time (recovery time, trip delay, power on delay) :
5% of setting 200ms
Function :
Protection :
– Under voltage
– Over voltage
– Under frequency
– Over frequency
– Phase sequence / reverse
– Phase failure
– Phase asymmetry
Monitoring in 3phase system
True RMS meansurement
Power ON delay
Trip time delay
Recovery time delay
Adjustable switching hysteresis
Two separate alarm relays