Single Pole Definite Time Earth Fault Relay JRC 012

OVERVIEW

    Features

  • Software based design
  • Wide setting range
  • Wide auxiliary supply
  • Low burden

Application:

The relay provides earth fault protection of Generators,Motors, Transformers, Feeder etc., and where definite time protection is required.

SINGLE POLE DEFINITE TIME EARTH FAULT RELAY JRC 012

Principle of Operation:

The relay provides earth fault protection for power systems. Relay operating time is determined by set definite time. The relay measures the current from the input CT and if it exceeds the set threshold, it extends a trip signal after the operating time, which is determined by set definite time. The relay output contacts are self reset type. TEST button facilitates testing of relay contacts for trip and alarm circuits.

 

SPECIFICATIONS

Ratings:

Current rating ( In )

:

1A / 5A

Aux. Supply

:

20 to 60V DC
75 to 175V AC / DC
175 to 300V DC
185 to 250V AC

     

Settings:

Earth fault setting

:

5 to 80% in steps of 5 %

Definite time setting

:

0 to 25s in steps of 0.1s

     

Over Load Rating:

Current input

:

2 times Rated continuous
20 times Rated for 3s
40 times Rated for 1s

     

Burden:

Current input

:

0.2VA at Rated 5A
0.05VA at Rated 1A

Aux. Supply

:

Less than 3W (Non Operated)
Less than 5W (Operated)

     

Accuracy:

Operating value

:

±5%

Operating time

:

± 5% or ±20ms

Instantaneous time

:

Less than 40ms

     

Contact Ratings:

Relay rating

:

10A at 24V DC/230V AC

     

Contact Durability:

Unloaded contact

:

1,000,000 Operations

Loaded contact

:

100,000 Operations

     

Mechanical Design:

Weight

:

2000 gms. (approx)

Case Size

:

144sq mm, depth 232mm

Installation

:

Flush mounting

Panel cutout

:

138mm x 138mm

     
 

Insulation:

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

Standard Compliance:

Accuracy test

:

IEC 60255-3

Insulation test

:

IEC 60255-5

     
 

SINGLE POLE DEFINITE TIME EARTH FAULT RELAY JRC 012

DOWNLOADS

SINGLE POLE DEFINITE TIME EARTH FAULT RELAY JRC 012

Catalogues:

DOWNLOAD

Operating Manual:

DOWNLOAD

 

SINGLE POLE DEFINITE TIME EARTH FAULT RELAY JRC 012

 

ORDERING INFO.

Ordering Information:

Relay type

:

JRC 012 (E/F)

Current rating

:

1A / 5A

Auxiliary Supply

:

20 to 60V DC

 

:

75 to 175V AC / DC

 

:

175 to 300V DC

 

:

185 to 250V AC

 

SINGLE POLE DEFINITE TIME EARTH FAULT RELAY JRC 012

 

A WebSpotLight creation by Netsoft.