Answer / rmatsaat

If you are referring to cathodic protection, here is my simplified answer..

Cp is needed to protect metal from surface corrosion. By using sacrificial anode you are ensuring the protected metal does not corrode until all the anode used up (exhaused. From corrosion)

If you use impressed current cp (iccp), you are 'reversing' the natural process of metal reduction (-hence corrode), protecting the metal from corroding.

Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

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following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

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How much ampere can withstand for 2sq mm c able?

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when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

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solar energy light efficiency & disadvantages?

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i want to know about for what reason we are using star delta starter? how it works? what are the advantages?

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how set earth fault over current in relay

5 Answers   Jacobs, Reliance,

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How PADO software increase the efficiency of power plant?

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