RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE MORE THAN 11KV ???????????????//

5 Answers   Hakel,

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how is working d.c amps meter?how to connect the dc ammeter inthe circuite?

2 Answers  

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What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

0 Answers  

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In APFC panel, Why on dealy timer is used in Capacitor controlling circuit?

1 Answers  

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how and where megger works?

9 Answers   Power Grid,

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While testing LA mast,What are the parameter limits ?

0 Answers   TATA,

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to transmit 30kw of power at 30 km what is voltage required

2 Answers   Anglo Eastern, Merchant Navy, NPCIL,

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List few applications of d.c series motor?

0 Answers  

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Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?

0 Answers  

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What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.

0 Answers  

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In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

2 Answers  

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Why squirrel cage motor can only use with low starting loads ?

0 Answers   BEC,

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