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We are introducing ourselves as leading manufacturers for Motor Controller & other products. Our company is in the field since last 15 years. We would like to become your valuable supplier. We request you to register our firm as a supplier for... |
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| Contact Us |
S. No. 28, Jagtap Dairy, Pimple Nilakh, Pune - 411 027, Maharashtra India.
Tel. : +91-20-2727 0100,
Telefax : +91-20-2727 0800, 2727 6777
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Voltage Monitoring Relay : |
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Protection of electrical devices against Over voltage, Under voltage in the supply is one
of the major issue in electrical systems.
For safe running of electrical devices, special protections that keep a continuous
watch on supply conditions are very essentials.
'PROTONs VMR 1P' offer following protections along with 3 digit display showing
R-N voltage in scanning mode with precise accuracy.
LOW/HIGH voltage tripping to ensure trouble free running of Loads. |
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SALIENT FEATURES : |
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Microcontroller based technology. |
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Voltage protection along with digital voltage readout. |
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Wide range of supply variation. |
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Protection against Under voltage. |
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Protection against Over voltage. |
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Password Protection for the set point. |
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All the set points setable by keys. |
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Indications for High voltage, Low voltage
Relay ON & Timer indication . |
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No separate auxiliary supply required. |
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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. |
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[ /\ ] INC key, To increment set point. |
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[ \/ ] 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. |
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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. |
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[ /\ ] : INC key, To increment set point. |
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[ \/ ] : 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. |
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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
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