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How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).

0 Answers  

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how can we measure rotor current of a 3phase wound rotor induction motor connected to liquid resistance starter

1 Answers  

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house wiring - series wiring or parallel wiring

4 Answers  

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Advantages of low voltage drive (control panel)

1 Answers   ABB,

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What is the need of motor starter?

6 Answers  

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what is high voltage in india?

11 Answers   Essar,

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Going in for a three phase motor or a single phase motor, what factor should be considered for this? For eg., to pump water to certain height and such domestic applications, which motor is suitable?

1 Answers  

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HOW TO TEST THE SODIUM VAPOR AND MERCURY VAPOR LAMP ?

1 Answers  

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When batteries are connected in series the voltage increases but the current remains unchanged, how can this be? When you consider ohm's law. i.e. If voltage increases, current increases, providing resistance remains the same.

10 Answers  

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in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

0 Answers  

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Which modulation has higher data rates a.fm b.am c.qam d.qpsk

1 Answers   NTDC,

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It is advisable 2 use auto-transformer if transformation ratio is-a)110KV/11KV,b)230kv/110kv,c)110kv/66kv,d) 400kv/230kv

2 Answers  

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