Answer / sujit

in case of copper conductor cablesize in mm is equal to onefourth of fulload current and in case of aluminium it is equal to flc.current rating can be calculated from power rating,input voltage along with powerfactor.

why we can choose induction machine in wind mill? why can`t use synchronous machine?

3 Answers  

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whats is the role of power factor in designing a tariff structure?

1 Answers   IIT,

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Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected

0 Answers   Bajaj,

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what is the difference between ground and neutral?

2 Answers  

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what could be the possible reasons for copper cable to have low insualation?

1 Answers  

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What are the reason of unbalanced secondary voltage of HT transformer 33kv/6.6kv ? Incomming voltage is balanced.33kv each secondary voltage 6.6 kv 6.4 kv 6.4 kv At no load conditions.

1 Answers  

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what objective books are good for preparing for PSU's?

3 Answers   NTPC,

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Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

0 Answers   Bhel,

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What are the different methods for calculating Short Circuit Curren?

3 Answers  

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does the transmission line model also requier active power in no-load operation?

1 Answers  

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why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points

0 Answers  

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I am having a DG set.The 415 V from Generator is step up to 460 v and then the same is used for Induction furnace. before Step up, I am connecting LT load to my factory use. When Induction furnace is in service from DG, when i try to start a motor, the generator is tripped.Please tell me the reason.

3 Answers  

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