digital voltage protection relay 3 wire SELEC 900VPR-2 digital voltage

Digital Voltage Protection Relay - SELEC
Type : 900VPR-2

> Input Connection: 3 Phase / 4 Wire, 3Phase / 3 Wire
> Operating Voltage : 160 to 300VAC (L-N ), 280 to 520 (L-L), 50/60 Hz
> 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 3 Phase / 3 Wire system )
160 to 300VAC L-N (for 3 Phase / 4 Wire system )

Under / Over Frequency : 45 - 65 Hz
Phase asymmetery : 5 - 99.9%

> Trip Time Setting :
Power On Delay : 2 - 99.9 %
Trip Time Delay : 0 - 99.9 sec
Recovery Time Delay : 0 - 99.9 sec
Response Time : < 200 ms

> Accuracy :
Voltage : +- 1% of set Value
Frequency : +- 0.3 Hz

> Accuracy Time ( Recovery time, Trip delay, Power on Delay) :
+- 5% of setting +- 200ms

> Size 35 x 90 mm

FUNCTION :
PROTECTION
>Under Voltage
> Over Voltage Trip
> Under Frequency
> Over Frequency
> Phase Sequence / Reverse
> Phase failure
> Phase asymmetry

> Monitoring 3 Phase system
> True RMS measurement
> Power On Delay
> Trip Time Delay
> Recovery time Delay
> Adjustable switching hysteresis
> Two Separate alarm Relays


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