Answer / dev

nuteral is for completing the ckt and earthing wire is for
electrical equipment safety neutral wure cant protect
equipment similarly grounding for unbalanced current safety
for human mainly works on principal of rccb and elcb

What are the advantages of speed control using thyristor?

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If the load is 10Kw and power factor has to improve from 0.5 to 0.8,how can we select the capacitor rating accordingly.Illustrate by showing formula?

9 Answers  

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In AC Drives How can change & control its output Frequency?

5 Answers   Jindal,

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What is the Difference Between choke & ballast

3 Answers   ABB, ICS Integrated Computer Solutions,

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what is the role of impedance in transformer?based on secondary f.l.current(139 amps) and impedance(4.07) of 415/415v of 100 kva transformer. what is the primary current?

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what is total power generation in tamilnadu What are the methods used powerfactor improved? which place DC transmission line usde?

5 Answers  

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How to design CT for connected with Transformer OLTC operation? normally CT output design for 1A/5A range but during OLTC Tap position changing time how to function the CT?

1 Answers   HEG,

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During speed control of dc shunt motor with flux control methode,when armature voltage is constant, How can it possible to increasing the armature current?

1 Answers  

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Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

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what is meant by servo motor ? how its operating either AC or DC?

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In a 11Kv/433Volt Delt-star step down transformer one one line(Line-B) of HT site is open & earthed on DP structur. What will be the voltage on LT side R-Y, Y-B,B-R and R-N, Y- N & B-N?. Please help to understand the problem with examples. Arvind , Jaipur.

1 Answers  

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What is the unit of magnetic flux density?

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