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Differential Relay.
 
8. Differential Relay For 2 Wdg. Transformer
 
General Description :  These are micro-controller based transformer differential relay designed to protect transformer  from internal fault. These relays are having special restrain to avoid mal operation during  transformer charging and over fluxing conditions. These relays are having dual bias feature to  provide stability during very high through fault.
  
General Specifications :
Rated Current
:
 1Amp. / 5Amp.
Bias Setting
:
 15% - 30% and 45%
Operating current
:
 15% - 100%  Non.
Bias Inst.
:
 2N - 20N or bypass.
 
Sr. No. Relay Type Functional Details EE Eql Cabinet Style
 1.
 ACDF31H This model is superseded by the equivalent numerical version relay ADR 133A. 
 3 X  MBCH12
 CSD-120
   
 

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