Answer / binod

AS WE HAVE TWO PART OF THE PROBLEM.
1ST PART IS GENERATOR &2ND PART IS LOAD TESTING OF ABATTERY
CHARGER.
1ST-1) THE GENRATOR IS DTIVEN BY THE ENGINE.
CAPCITY OF ENGINE TO RUN THE GENARATOR FOR DELIVERING ITS
FULL LOAD TO BE CHECKED BY ANY OTHER MEANS. INTERLOCKS OF
TEMPRATURE VARRIATION OF GENERATOR TO ENGINE BE CHECKED.
2ND- CONNECTIONS TO BE VARRIFIED,BATTERY CHARGER
SEMICONDUCTOR ELEMENTS RATING HEALTHYNESS &CAPACITY TO BE
CHECKED.THE LOAD WHICH IS GIVEN TO TEST IS CHECKED IN
INCREASED TEMPRATURE.THE LOAD MAY BE SHORT CIRCUITED AT 70%
CAPACITY WITH INCREASED TEMPRATURE.

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generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

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