Answer / k.prakashchandra

There can not be earth fault on delta side as there is no
neutral for earthing and the neutral of the primary gets
isolated .It is customary to have delta -star step up
transformer instead of star-delta.

I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

0 Answers  

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how calculate gd2 of ht motors

4 Answers   Hindustan Copper Limited, Kohler India,

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What is the importance of earthing?

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What will be the current after disconecting the bus bar or cable before discharging ?

2 Answers   Sodexo,

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ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

0 Answers  

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how we can calculate cable size of 230v,1 hp single phase motor ? panel to motor distance is 25 meter

4 Answers  

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If OLTC is in manual position there is chance to variation of voltage(Low or High)?

1 Answers   Juniper Networks,

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Tell the details of the precommissioning tests that are performed on distribution transformer, power cable and switchgear (11kv).

1 Answers   Reliance,

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How many types of instrument cables are there?

0 Answers  

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electric contractor ya contactor kia hota hy ? or kesy connect kia jata hy ?

1 Answers  

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Is there any thumb rule for cable selection for any current rating ?

1 Answers  

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why effective resistance should be more than static resistance in transmission line?

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