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MICROMASTER

IGBT failed in MM440 110KW dirve

Thread Starter: RANJAN PARIDA   Started: 5/29/2012 6:56 AM   Replies: 2

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  5/29/2012, 6:56 AM
RANJAN PARIDA
Joined 7/4/2011
Last visit: 4/27/2013
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Dear Experts,

In 110 KW MM440 drive (installed in Crane Long travel motion) 1,3,5 IGBT failed. Now changed the supply of motors to conventional contactor logic with Motor protection relay. No tripping observed and running smoothly.

Can anybody help-- why IGBT failed ?
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  5/31/2012, 8:07 PM
Kutty19
Joined 1/27/2011
Last visit: 9/8/2012
Posts: 38
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  Give me the Motor Name Plate Details ?
 
   If it is new commissioing........ 

      1. Check whether the Drive is suitable for the motor or not ?

      2. Check motor current ratings ? 

  

  Reason :

    Due to more load only IGBT gone

   It means Over load current value is beyond the I2t value of the IGBT .....................  

    Thanks.................

 
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  6/6/2012, 1:44 PM
RANJAN PARIDA
Joined 7/4/2011
Last visit: 4/27/2013
Posts: 22
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Dear,

pls. find the motor details below. Drive was used for Long travel motion. 2 motors were connected to the drive output.

OperationMotor typeMakeKW SpeedStaotr V Stator currnetRotor Volt Rotor Amp HzInsuDuty*CDENDEIP Frame  
LTSlipring ICKirlosker42980415823008950F/FS4-40%40N315631555CDW250MMK11-T 

Drive Model No-6SE6440-2UD41-1FA1

Drive Control mode-V/F

Thanks
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