Answer / sinnadurai

readers please provide

Answer / moulali

to find phase displacement of 3 winding transformer, first of all consider the core construction of core and prepare sample model of core and draw a circle around the core which touches the end of the core arms. now core arm devides circle into three parts and measure the angle between two arms which is phase difference.

Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.

1 Answers   Electrical Tech,

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if voltage bt phase & nutral is 38v in a panel board . whats the root cause.

0 Answers  

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formula for cable size calculation for current?

10 Answers   KL Power, ONGC, RL Clean Power Pvt Ltd RLCPPL, SAS, Sobha Developers,

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how did i get the competency certificate as electricle supervisor. iam completed my b.tech.but i dnt have any experince, this certificate is required for applyng ongc mangement trainees. what should i do sir please suggested me

0 Answers   ONGC,

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we have 350 kva capcitor bank which is not showing KW. dose capacitor shows kW OR not.

2 Answers  

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In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?

0 Answers  

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Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

0 Answers   Siemens,

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how to reverse the direction of universal motor?

2 Answers   Finolex, JGT, TATA,

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Mention how NPN and PNP transistor works?

0 Answers  

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1. Why a DC motor starter is called 3 point starter

21 Answers   ABB, CG, College School Exams Tests, Crompton Greaves, Infosys, Siva,

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how the find ct mf and mf roll in metering

1 Answers  

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HOW TO CALCULATE THE ILLUMINATION IN INDOOR LIGHTING?

0 Answers   L&T,

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