in delta connection, why motor rotate in high speed compared to star connection?

2 Answers  

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show me the diagram of three phase wiring and also tell me hoe to take the readings of megger testing

2 Answers  

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1. what is difference between VCB and ACB.how its works please explian.

6 Answers   ABB, Accenture, HP, Minda, Mother Dairy, Satyam Pharma,

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why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.

4 Answers  

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ITI r/tv trade APPLY (J.T.O VACANCEY) ALSO INCLUD AITT ELECTRONIC,WRITEEN XAM DONE 23.03.10 BUT NO RESPONCE WHY ANATHER ID gopal_gh007@rediffmail.com

0 Answers   KBC, wbsedcl,

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How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?

0 Answers   Siemens,

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What is voltage ratio of a transformer?

0 Answers  

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In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?

8 Answers  

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what is the condition for YnD11

0 Answers   Bhel,

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in case of three phase induction motor,when it is connected to three phase supply,why the magnetic field is rotets around the armeture?

5 Answers   Hindalco,

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1 no. 22 kV feeder is taken from state electricity board. 350 MVA is the S.C. MVA. now i am feeding this feeder to HT Panel having 2 outgoings which further supply to 2 Transformers. Can you please suggest me the type & rating of cables are 3 of these cables same? or they are different? please help...............

2 Answers   TCE,

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Auto transformer starter gives the same effect as star/delta strater if its turn ratio = A 0.5 B 0.67 C o.66 D 0.577

1 Answers  

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