Answer / ashish sharma

STAR DELTA...BCOZ REDUCED VOLTAGE IS APLLIED IN STARTING AS THE STARTING CURRENT IS VERY HIGH...IN STA CNNECTION VP=VL/UNDER ROOT 3...

Answer / guest

delta star

Answer / deepak verma

3 phase motor connected in stardelta connection because high value of current required to motor to attain its rated speed which is obtained by star delta....its increse the starting current by root 3 and reduce the voltage by root 3

Why the vector group of excitation transformer in static excitation system is Dy5?

2 Answers   CSEB, SRF,

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Why not instal the NGR in 11kv/433kv trasformer?

3 Answers  

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How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

0 Answers  

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If there is unit power factor in a power house and a capacitor bank used in a factory at resistive load . In this case, will there leading power factor in power house across that factory.

2 Answers  

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how is find out kwh step by step

0 Answers   Voith,

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In case of dc circuit Whether dc current will pass through capacitor after it gets charged?

2 Answers  

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why m and c are shorted in wattmeter

1 Answers  

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and gate circuit diagram,amplifier circuit diagram

0 Answers   NHPC,

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Why current leads the voltage in case of capacitor load? Why voltage leads the current in case of inductive load? Why both are with in phase in case of restive load?

3 Answers   TATA,

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V.c.b and a.c.b difference

4 Answers  

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why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

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11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?

0 Answers  

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