In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.

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We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

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As we know,charged clouds(from which lightning stroke initiates)may be charged with either +ve charge or -ve charge. Now say one cluster of cloude is fully charged with +ve charge & another cluster is fully charged with -ve charge. In the sky these two cluster of charged clouds have come in such a distance that, if they come clouser by some few yeards then the lightning discharge will take place between these two cluster of clouds. Under such a situation an Aircraft came inbetween. what happend??

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What is drain current of static relay?

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Can Dy11 and Dy1 vector group transformers be paralleled?

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i need to calulate the cable size when watts are mentaind wat z the formula

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when we increase load , current drawn from source also increases why ?

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what is diffrenance between ACB and Isolator

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What is the different type of class in CTS and why it is required

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three owners X, Y, z owned some tractors with them, on the first month x gave away the same amount of tractors to y and z ( as much as they possed), similarly in the 2nd month y gave of to x and z similarly by third month z gave to x and y. after this all X, Y, Z had 24 tractors each.

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1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve

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how to select cable size according to ampere.

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