Answer Posted / m.sulaiman

440kv

Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?

1877

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How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

1992

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

1744

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What is the unit of attenuation?

1009

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why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.

2081

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what r the safety measures in UPS ? explain all?

2171

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What is the use of iron core in a transformer?

1073

---

Please define ampere?

1058

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why h parameter are called as hybrid parameter?

1915

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how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?

2551

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Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

2057

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how to calculate the tarriff for an industry whose kva demand is 10 mva

1921

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advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

1744

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How a capacitor discharge weld power supply works? what is the use of a pulse transformer?

2018

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1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

1887

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