AUTO RECLOSE RELAY JRV 144

OVERVIEW

    Features

  • Software based design
  • Built- in Auto / Manual selection facility
  • No. of shots selectable
  • High accuracy and stability

Application:

The auto reclose function is normally used in feeder protection relays that are protecting an overhead line. Most of the overhead line faults are temporary in nature. Even 85% can be cleared by using the auto reclose function.

AUTO RECLOSE RELAY JRV 144

Principle of Operation:

The relay receives the fault initiation from the protection relay and that triggers the auto reclose function. After tripping the circuit breaker (CB), the Auto reclose function can reclose the CB. Normally , the first reclose (or shot) is so short in time that consumer cannot notice anything . However the fault is cleared and the feeder will continue in normal service. Even though the basic principle of Auto reclose is simple, there are a lot of different timers and parameters that have to be set.

 

SPECIFICATIONS

Ratings:

No. of shots

:

1shot or 2shot

Aux. Supply

:

1) 20 to 60V DC
2) 75 to 150V AC / DC
3) 175 to 300V DC
185 to 250V AC

     

Settings:

1 - Shot
Reclaim time


:


5 - 80s in steps of 5s

Dead Time

:

3s - 10s in steps of 1s

2 -Shot
Reclaim time


:


20 - 320s in steps of 20s

Dead Time 1

:

10s - 80s in steps of 10s

Dead Time 2

:

30s - 170s in steps of 20s

     

Over Load Ratings

Voltage input

:

120% of rated voltage continuously

     

Burden:

Aux. Supply

:

Less than 5W (Non operated)
Less than 7W (Operated)

     

Accuracy:

Operating Time

:

±5% or ±30ms whichever is higher

     
 

Contact Ratings:

Lockout Relay &
Re close Relay


:


10A at 24V DC/ 230V AC

     

Contact Durability :

Loaded contact

:

10,000 operations min.

Unloaded contact

:

100,000 operations min.

     

Insulation:

  1. 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 s. Between all terminals and cases .
  2. 1KV RMS, 50 Hz for 1 minute across open contacts
 

Mechanical Design :

Weight

:

2500 gms. (approx)

Case Size Fascia
Installation

:
:

144sq mm, depth 117mm
Flush mounting

Panel cutout

:

138x138 mm

     

Standard Compliance

Accuracy test

:

IEC 60255-3

Insulation test

:

IEC 60255-5

     
 
 

AUTO RECLOSE RELAY JRV 144

 

DOWNLOADS

AUTO RECLOSE RELAY JRV 144

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

AUTO RECLOSE RELAY JRV 144

 

ORDERING INFO.

Ordering Information:

Relay type

:

JRV 144(1 shot )
JRV 144(2 shot )

Auxiliary supply.

:

20 to 60V DC
75 to 150V AC / DC or
175 to 300V DC (185 to 250V AC)

 

 

 

 

AUTO RECLOSE RELAY JRV 144

 

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