Answer / natha

on the basis of load curve it is calculated.if suppose you have to find the max demand(md)of ur house plot time on x axis units consumed on y axis.you get supppose 2units 6am 30 7am 42 8am 5 9am.....till midnight.then ur max demand is 42units.all other factors such as load factor,diversity factor can be found.

Answer / shamsher singh

the maximum demand is the plant maximum load allow the state
electrical board on 500 kva we can use the load inside the
limit that in sanction load by the state electrical board
for a example our transformer is 500 kva and according
to power factor we calculate in standard 500*0.9=450kw .we
authorized only 450 kw only.govt authorized me only 450 kw
we cross the limit we pay the penalty

Answer / lohith

75 percent of the
contract demand.
Its multification
factor is cubical
meter ct ratio into
pt ratio

can we ran equipment up to 10kw between phase to grounding/ earthing. beside above can we use grounding instead of neutral. .

1 Answers   TNEB Tamil Nadu Electricity Board,

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Why the CT Secondary is rated as 5A generally?

2 Answers  

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resistance of transformer oil=?

1 Answers   HCL,

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why neutral and body earthing of transformers kept separated? what is distance between two is required as per is?

6 Answers  

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at present how many 765 kv lines are there in india?

5 Answers   Emco,

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In an ideal transformer no load primary current I0 A lags behind V1 by 90 degree B is in the phase with V1 C leads V1 by 90 degree D lags V1 by 45 degree

1 Answers  

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How to calculate the current carrying capacity of sized cables, and there is any formula. please send to 'than.achu@yahoo.com'

1 Answers   Blue Star,

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why we use post insulators in no ofstacks at substation for supporting equipment ? why we not use single post insulator

3 Answers  

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What is industrial plc

0 Answers   TCS,

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Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 Answers  

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Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

0 Answers   TCCL,

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6. A DC AMMETER HAS R=0.1 OHM & CURRENT RANGE IS 0-100 A IF THE RANGE IS TO BE EXTENDED TO 0-500 A THEN METER REQUIRES SHUNT RESISTANCE OF ..........

2 Answers   SSC,

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