Answer / hanupowergrid

Impedance, denoted Z, is an expression of the opposition that an electronic component, circuit, or system offers to alternating and/or direct electric current.Impedance is a vector (two-dimensional)quantity consisting of two independent scalar (one-dimensional) phenomena: resistance and reactance.

what is frequency response?

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How to calculate mf when meter equipment and meter are connected

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Dear sir, we are getting voltage fluctuations suddenly for 2 or 3 minutes again it becomes normal. we checked each and every connection some times we are getting 110 volts like that from earth to neutral again it is reducing we are getting supply from 45 kva DG set give earthing properly.

3 Answers   Triveni,

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Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha

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6 Answers  

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Draw transformer phasor diagram.(full load,no load)

0 Answers   PowerTech, Trine,

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1 Answers  

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1 Answers   TATA,

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what is the significance of tan delta testing?explain the theory?

7 Answers  

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