What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas

1 Answers  

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HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT SWITCH BOARD,MLDB,ACB,BUSBAR,ETC...?

0 Answers  

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Why CT secondary is grounded?

11 Answers   GE,

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how synchronous generator can be used as synchronous condenser?

3 Answers   Monnet, Wipro,

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A 60w bulb & a room heater are connected in series.if 60 w bulb is replaced by 100w then what will be the effect on heater out & why?

6 Answers  

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what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?

0 Answers  

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what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

0 Answers  

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75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

0 Answers  

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what r the types of transmission line?

28 Answers   DIET, RRB, WAPDA Water and Power Development Authority,

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Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

0 Answers  

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if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

0 Answers  

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where AVR is connected in power plant.

7 Answers   ABB, Saudi Red Bricks,

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