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Numerical 3 Pole Differential Relay : ADR133A
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General Description :

ADR133A is a numerical transformer differential relay with dual bias characteristic for two winding transformer.

ANSI
IEC
 Protection Functions
87
-
 Dual Bias Differential Protection.



Specifications :
Online display of Phase Current / Differential Current.
Latching of fault current value.
High Speed operation.
Operation is based on fundamental frequency value.
Harmonics restrain for Transformer charging and CT saturation condition.
Programmable Internal ICT (Interposing CT) ratio to match different transformers having different vector groups.
Programmable dual bias setting.
Model Functional Details Cabinet Style  
    ADR133A Non Communicable Numerical Differential relay for two winding transformer. CSD-V-120
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