Contents
ANNEXURE NO. 3

ANNEXURE NO. 3

RELAY DETAILS (FOR EARTH FAULT PROTECTION)

Sr. No.

Relay Type

Description

Make

   Current Setting         In /Ig

Setting available

Burden at Min  Setting. VA

1. Ramde

Micro Processor   Based

ABB

Ig = 3mA &10mA    Ig=100mA                   Ig = 500mA

1 - 10 times of Ig   1 - 10 times of Ig

0.001    0.0015   0.004

2. Racid

Micro Processor   Based

ABB

  Ig = 0.03 A

  Ig = 0.2 A 

  Ig = 1 A 

  Ig =5 A     

0.1-0.5 times of lg  0.5-0.8 times of Ig 0.1-0.5 times of Ig 0.5-0.8 times of Ig 0.1-0.5 times of Ig  0.5-0.8 times of Ig 0.1-0.5 times of Ig 0.5-0.8 times of Ig

0.02            0.015          0.025          0.02            0.03            0.3              0.3             

3. RXPF4 Electro Static

ABB

 1A or 5 A

(3 - 12) mA           (10 - 40) mA         (30 - 120) mA      

0.000015 0.00002  0.00005  

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