Vmr 3 Phase

TECHNICAL SPECIFICATION :

Supply voltage

100-300 VAC, (No auxilliary supply)

Output Contacts

Two changeover (N/C-C-N/O),Rating 5A at 230VAC

Voltage trip setting

: 240 to 300 V For OV with digital display (resolution of 1 V)
: 0 to 210 V For UV with digital display (resolution of 1 V)
( Hysterisis between cut off & cut in is 10V)

Trip Time delay

Trip time for UV :Settable Default : 5 sec. Range: 1 to 60 sec. for OV : Fixed 3 sec.

ON Delay

Selectable by keys from 1 to 60 sec.

Reset Mode

Auto reset.

Indications

TIMER : RED LED
OVER VOLTAGE : RED LED
UNDER VOLTAGE: RED LED
RELAY ON : GREEN LED

Keys

[ SET ] FUNCTION key, To select a set point function.

[ /\ ] INC key, To increment set point.

[ \/ ] DEC key, To Decrement set point.

Operating Temperature range

-5 0C to 60 0C.

Relative Humidity

95%

Mounting

Din rail. : Base mounting dimensions
55 (W) x 65 (L) x 125 (D) mm.

TECHNICAL SPECIFICATION :

Supply Voltage

3 Phase 415 VAC,50 Hz (R,Y,B &N) (No auxilliary supply)

Output Contacts

Two changeover ( C-NO),Rating 5A at 230VAC

Voltage trip setting

Lower Limit is 340 for Under voltage (Resolution of 1 Volt)
Upper Limit is 460 Volts for OV (resolution of 1 V)
( Hysterisis between cut off & cut in is 10V)

Trip Time delay

Trip time Less than 100msec.for SPP, Reverse Phasing & Over Voltage Trip Time is settable for Under Voltage & Unbalance..

ON Delay

Selectable by keys from 1 to 60 sec.

Reset Mode

Auto reset

Indications

SPP : RED LED
OVER VOLTAGE : RED LED
UNDER VOLTAGE: RED LED
RELAY ON : GREEN LED

Keys

[ SET ] : FUNCTION key, To select a set point function.

[ /\ ] : INC key, To increment set point.

[ \/ ] : DEC key, To Decrement set point.

Operating Temperature range

-5 0C to 60 0C.

Relative Humidity

10 to 95%

Mounting

Din rail. : Base mounting dimensions
55 (W) x 65 (L) x 125 (D) mm.

WORKING :

In the normal run mode, display shows Phase to Neutral Voltage If there is no UV/OV fault then countdown of ON time for Relay will start on display & timer indication starts blinking & after that Relay will be ON & Phase to Neutral Voltage will be displayed continuously. If Over voltage/Under voltage fault occurs in the supply then Relay will be OFF & corresponding fault LED starts blinking.Hysterisis betwen Cut off & cut in is 10V