WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

0 Answers  

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what is earthed and inearthed cable or system?

1 Answers   CCCL, L&T,

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EXPLAIN WHAT BTU STANDS FOR(AIRCONS)

2 Answers  

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generaly all power generating devices is expressed in KVA or MVA then why power ststion is expressed in MW

6 Answers  

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how can i get the formula to find out the cable size if i know the load of main fuse protection.

0 Answers  

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send me the upsc conventional papers of 2006

1 Answers   Juniper Networks, Siemens,

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The unit of resistivity is:(a) ohms(b) ohm millimetre(c) ohm metre(d) ohm/metre

4 Answers  

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Why red,yellow,green colours lamps are used in the traffic control?

2 Answers   Samtel,

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whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

0 Answers   DAE,

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How to calculat the size of copper& aluminium wire ?

5 Answers   Hindalco, IOCL,

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short circuit test of transformer gives what?

9 Answers   NTPC,

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In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

0 Answers  

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