Answer / mansingh

1/2 CORE USED FOR NEUTRAL CONNECTION. IF ELECTRICAL LOAD IS
BALANCED THEN NO LOAD WILL BE ON NEUTRAL, IF LOAD IS
UNBALANCED THEN UNBALANCED LOAD WILL GOES THROUGH
NEUTRAL.SO FIRST WE SEE THAT LOAD IS BALANCED IN PHASES
THEN IN THIS CONDITION NO CURRENT WILL FLOW THROUGH
NEUTRAL,SO NOT REQUIRED FULL CORE.

Instead of single phase(220), if we apply Phase to phase (R&Y)supply (eg: for lighting fixture). what will be the power formula?

1 Answers  

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how to calculate the kw, Amps consumed by a capacitor, give me the formula for KVAr into capacitance,KVAr into KW & KVA, Amps

3 Answers  

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How over load relay works.

1 Answers  

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In Energy meter How many rotation Equal to one unit.

3 Answers  

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A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

0 Answers   VECL,

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If the damper winding on the rotor of a synchronous motor is removed after starting what will happen?

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at which voltage level arcing ground is occurs ??????????

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what is KWH

2 Answers  

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We have a 12MW power plant & we inject 5-6MW power to Orissa GRID. For this we have a 33KV/11KV switch yard having 12.5MVA power transformer. Some times we draw power during emergency. It is observed that during Export or Import for load less than 500Kw the power factor is decreasing to 0.3 . This is happening only during export or import. During island condition TG power factor OK.Our capacitor bank is provided with our Power plant auxilliary load. Please suggest how I can we improve our power factor during low load (GRID).

3 Answers  

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How to megger test 11 kV cable and the acceptance IR value

0 Answers   BVG, NFL, ONGC,

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Classify drilling machines.

0 Answers   Ashok Leyland,

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