Answer / vithal k

by formula one can derive the power through Voltmeter &
Ammeter reading but its impossible to project the power
factor at the time of reading we r taking for both the meter.

Answer / ravikumar.g

The wattmeter is using for find out the power in 3 phase
and single phase in differnet formulas.

In the voltmeter and ammeter reading can also find out the
power to caluculate the formulas.

which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor

0 Answers  

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Can any one explain me about 2 phase motors ?

2 Answers   L&T,

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what is the difference b/w earthing and grounding??

2 Answers   Dodsal,

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what is the maximum demand how it is defined

1 Answers  

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1.What is wind span ,wight span and normal span, and what is the difference for 132kv transmission .

1 Answers   PKR,

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what is significance of B-H curve? how it differs form ordinary transformers to Amorphous Transformer?

2 Answers   BARC,

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

4 Answers  

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Where we give genset o/p in home & industrial applications ?

1 Answers  

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What will happen if we on 200kvr capacitor bank(11kv in bus)If there is low load on transformer (1.5 mva 33/11 kv)

0 Answers  

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Shall we get electrical shock if we touch the positive terminal of a 230 volt dc supply?

22 Answers   Essar,

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electricity bill multiplication factor 487.20xconsumption=total unit in kwh. what is 487.20 ?

1 Answers   Spec International,

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-What is leakage current . how much leakage current is allowed.

3 Answers  

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