DEFINITE TIME OVER VOLTAGE RELAY JRV 942

OVERVIEW

    Features

  • Software based design
  • Instantaneous/Definite time selection
  • Wide auxiliary supply
  • Low burden

Application:

Over Voltage Relay is used for protection of motors, generators and capacitor banks, feeder etc.

DEFINITE TIME OVER VOLTAGE RELAY JRV 942

Principle of Operation:

The sensing Voltage is applied to the input terminals of the relay. The applied voltage is amplified and fed to a Voltage Comparator. Output of the comparator is applied to the processor. The Software in the CPU performs the function of measurement and extends a trip signal after the set time delay is reached. The Relay contacts are self reset type and indications are latched, RESET button provided on the front of relay to clear these latched indications. TEST button is provided to test the relay contacts for trip and alarm circuits.

 

SPECIFICATIONS

Ratings:

Voltage rating AC OVR

:

110V AC

DC OVR

:

110V DC

Auxiliary supply

:

20 to 60V DC
80 to 260V AC / DC

     

Settings:

Voltage setting

:

100 to 170% in steps of 5%

Definite time

:

0.1 to 25sec in steps of 0.1sec.

Over Load Ratings

Voltage input

:

2 times Rated continuous

     

Burden:

Voltage input

:

Less than 2VA at Rated

Auxiliary supply

:

Less than 2W (Non Operated)
Less than 5W (Operated)

     

Accuracy:

Operating value

:

±5%

Operating time

:

± 5% or ± 20msec

Instantaneous Time

:

Less than 40msec

     

Contact Ratings:

Contacts 1 & 2

:

5A at 24V DC / 230V AC

     
 

Mechanical Design :

Weight

:

Appx. 500 gms

Case Size Fascia
Installation

:

96mm sq, depth of 105mm
Flush mounting

Panel cutout

:

92mm x 92mm

     

Standard Compliance

Accuracy test

:

IEC 60255-3

Insulation test

:

IEC 60255-5

     

Contact Durability :

Unloaded contact

:

1,000,000 Operations.

Loaded contact

:

100,000 Operations

     
 
 
 

DEFINITE TIME OVER VOLTAGE RELAY JRV 942

DOWNLOADS

DEFINITE TIME OVER VOLTAGE RELAY JRV 942

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

DEFINITE TIME OVER VOLTAGE RELAY JRV 942

 

ORDERING INFO.

Ordering Information:

Voltage rating AC OVR

:

110V AC

DC OVR

:

110V DC

Relay type

:

JRV 942 (AC OVR)
JRV 942 (DC OVR)

Auxiliary supply

:

20 to 60V DC
80 to 260V AC / DC

 

DEFINITE TIME OVER VOLTAGE RELAY JRV 942

 

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