In power generator sets, when they are coverted from 50hz to 60hz, the kva rating after conversion increases. For example, the manufacturer of a perkins 200kva @ 50Hz generator set has mentioned it to become 220kva after converstion to 60hz. What is the relation between the frequency & the KVA rating. Any formula please.

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what is the use of starter in tube light?and what it contains

12 Answers   L&T, RRB,

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Why Humming noise originated in Starter motor and how it was generated ?

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what is surge arresters ?........

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what is the mazor difference between the induction transformer and synchonous motor?what is the similarity between them?

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sir , what happen if we decrease ( approx 3 inch ) the lenth of shaft in 110KW Induction , three phase motor. actually a 110KW motor is couppled with star couplling to 120TR compressor. When we doing maintenance in compressor it is required to skid the motor backword and resulting dis- alightnment . so we want to change the tyre coupling in place of existing coupling. so it is required to cut off the rotor aprox 3 inch form driving side.

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what is phase voltage phase current line current and their usage? provide diagram

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why in an electrical lab a bulb connected to supply goes off slowly when the main supply is switched off?

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what is hunting?

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line vltage of three phase distribution transformer is 433v and phase voltage is 250v,but we required 230v for domestic distribution,then how we reduce phase voltage of transformer

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hi friends can u tell me name of the sites where i can get animation of electrical machines......

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In a panel 2500A ACB is the incoming breaker then what is the size of the bus bar?

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