i have a Connected Load of 280KW and Maximum Demand of
224KW to one of SMDB under design with me.
which criteria should i consider to design panel and main
cables connected Load or Maximum Demand
1)Breaker rating
2)Panel Busbar rating
2)Incommer cable sizing (ignore Voltage drop)
Answer / satyam
As the maximum demand is less than connected load ,you have
to choose rating of power equipments depending upon
connected load .
| Is This Answer Correct ? | 4 Yes | 1 No |
MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED. TRANFORMER DETAIL NORMAL KVA--150 KVA PRIMARY VOLTAGE --34.5 KV SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA CONNECTED) CONNECTION--D/d (EXTERNAL CLOSED) CONSTANT RATEING FROM--1.290-908V CONSTANT CURRENT FROM--908-690 VECTOR GROUP--D III
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