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ADR244A 

Doc ID: ADR244A /PC/01 

Rev No.: 01  

Page No.: 1 of 11 

 

 

 

 

Introduction: 

ASHIDA has designed economical & reliable 

Multifunction ADR244A  Draw-out/Non draw-

out Protection & Control System. The simple 

and compact construction of Aditya  series, 

ADR244A 

relay provides integrated 

Protection, Control and Monitoring functions 

for Induction motors. Draw-out/Non draw-out 

versions are available based on ordering 

information. 

 

 
 
 

 

Functional Overview:    

Key Protection & Control Functions: 

  Draw-out / Non draw-out cabinet 

  Two Independent Settings Groups 

  Thermal Overload Protection (49) 

  Non Directional Phase & Ground Over 

Current Function (50/51/51N/51) 

  Two 

Independent Stages for Non 

Directional Phase Over Current 

Protection 

  Two  Stages of Non Directional Ground 

Over Current Protection 

 

Summary of Contents for ADR244A

Page 1: ...n Control and Monitoring functions for Induction motors Draw out Non draw out versions are available based on ordering information Functional Overview Key Protection Control Functions Draw out Non dra...

Page 2: ...isturbance Recording 10 nos Event Recording 512 nos Fault Recording on HMI display 10 nos Non Volatile memory Fully communicable with IEC standard open protocol IEC60870 5 103 Separate communication p...

Page 3: ...ith non directional over current protection will be providing greater selectivity flexibility and sensitivity to users for better relay co ordinations ADR244A relay provides inverse time over current...

Page 4: ...e time inverse time internally derived zero sequence over current 3I0 protection to detects asymmetrical faults in electrical network It can apply to over head transmission line underground cable and...

Page 5: ...an select the one of this function for application Cold load pick up function provided in relay for multiple applications The application of this feature can be use to avoid wrong operation on inrush...

Page 6: ...age Broken Conductor Protection 46BC ADR244A equipped with broken conductor detection protection Broken conductor condition can be detected by ratio of Negative sequence current to Positive sequence c...

Page 7: ...e alarm whenever the circuit breaker control DC circuitry gets interrupted The ADR244A is having 4 separate digital opto coupler status input which can be used to continuously monitor heartiness of tr...

Page 8: ...y Disturbance records can be saved in IEEE COMTRADE format and same can be analyzed in disturbance analysis software Fault recording ADR244A relay is providing fault record facility The fault records...

Page 9: ...4 5 Differential Mode 2kV Common Mode 4kV 1 2 50 s 8 20 s 5 surges of each polarity 5 Power Frequency Immunity Test IEC60255 22 7 Class A 6 Pulse Magnetic Field Immunity Test IEC61000 4 9 TEST LEVEL 5...

Page 10: ...0M 500V DC Environmental tests 14 Cold test IEC 60068 2 1 15 Dry heat test IEC 60068 2 2 16 Damp heat test steady state IEC 60068 2 78 17 Change of Temperature IEC 60068 2 14 18 Damp heat test cyclic...

Page 11: ...Response Test IEC 60255 21 2 Class 2 3 shocks of 10gn peak acceleration and 11ms pulse in each of two opposite direction No of axis 3 28 Seismic Test IEC 60255 21 3 Class 2 Sweep 1 Axis a sweep rate o...

Page 12: ...ADR244A Doc ID ADR244A PC 01 Rev No 01 Page No 12 of 15...

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Page 15: ...trademark or registered trademark of their respective holders No ASHIDA trademarks may be used without written permission The information in this document is provided for informational use only and i...

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