LOCAL BREAKER BACKUP RELAY JRC 154

OVERVIEW

    Features

  • Wide OC setting range
  • Wide time setting range
  • Fast reset time
  • High drop-off / pickup ratio

Application:

JRC 154 local breaker backup relay, is used to check the operation of distribution end circuit breakers and to trip the feeder end circuit breaker if the distribution end circuit breaker fails to trip.

LOCAL BREAKER BACKUP RELAY JRC 154

Principle of Operation:

If a fault occurs at the distribution end and the respective protective relay operates but the corresponding CB fails to operate then the system may have
to face catastrophic consequences. JRC-154 is a instantaneous and definite time over current relay that also monitors the non-potential contacts of the
downstream protective relays. The relay is designed to trip the feeder end CB if the protective relay at the distribution end operates but its corresponding CB fails
to operate.

 

SPECIFICATIONS

Ratings:

Primary current rating

:

1A / 5A

Frequency

:

50Hz

Auxiliary Supply

 

:

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

     

Settings:

Over Current

:

5 to 200% in steps of 5%

Definite time

:

50 ms to 1.25 sec in steps of 10 ms.

     

Over Load Ratings:

AC current input

:

2 times rated continuous
20 times rated for 3 secs.

     

Burden:

AC current input

:

0.2VA Per phase (at Rated 5A)
0.05VA per Phase (at Rated 1A)

Aux. Supply

:

Less than 5W (Non Operated)
Less than 10W (Operated)

     

Operating Time

Instantaneous operating time

:

Less than 10 ms.

     

Contact Ratings:

Rating

:

10A at 24V DC/230V AC

     

Contact Durability:

Loaded contact

:

10,000 Operations

Unloaded contact

:

100,000 Operations

     

Insulation:

  1. 2KV RMS, 50 Hz for 1 minute / 2.5 KV for
    1 sec Between all terminals and earth.
  2. 1 KV RMS, 50 Hz for 1 minute across open contacts
    as per IEC 60255-5
 

Mechanical Design:

Weight

:

2500 gms. (approx)

Case Size

:

144sq mm, depth 232mm

Installation

:

Flush mounting

Panel cutout

:

138mm x 138mm

 

Standard Compliance:

Accuracy test

:

IEC 60255-3

Insulation test

:

IEC 60255-5

     
 

LOCAL BREAKER BACKUP RELAY JRC 154

DOWNLOADS

LOCAL BREAKER BACKUP RELAY JRC 154

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

LOCAL BREAKER BACKUP RELAY JRC 154

 

ORDERING INFO.

Ordering Information:

Relay type

:

JRC 154

Current rating

:

1A / 5A

Auxiliary Supply

:

1) 20 to 60V DC

 

:

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

 

LOCAL BREAKER BACKUP RELAY JRC 154

 

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