i have 6oo kva dry type transformer and its neutral is not grounded even body of transformer ground i want to know it is safe or not ?

2 Answers  

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What is VCB? Where it is installed?

11 Answers   Hyundai,

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why so voltage is same in parallel circuits and current is same in series ckt?

3 Answers  

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Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1.  H1-H2 = H2-H3 H3-H1 2.  H2-H3 = H3-H1 H1-H2 3.  H3-H1 = H1-H2 H2-H3 For the LV side also: 4.  X1-X0 = X2-X0 X3-X0 5.  X2-X0 = X3-X0 X1-X0 6.  X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0  H2-H0  H3-H0    X0-X1  X0-X2  X0-X3 128.0  119.9  7.2      29.2   13.3   15.8 70.7   128.4  59.2     23.4   22.0   3.6 7.2    120.1  128.1    13.4   29.3   15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?

0 Answers  

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why capacitor is placed in fan

4 Answers  

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Generally at what power factor the electronic equipments like computer, TV, EPABX etc.,operates. Please tell me.

1 Answers   HAL,

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What is basic difference between Soft Starters And VFD drives?

19 Answers   IBM,

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How can get C license i am complete I.T.I electrician trade and 10 years experiance this field and i complete the dee from ksou by distance mode of this year.ksou means karnataka south open university but i want Tnelb license

2 Answers   C License,

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If a high resistance fault occurs,then what are the changes will happen in the system?

0 Answers  

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STATE WORKING OF SF6 C.B.?

1 Answers  

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WHAT IS THE DIFFERENCE BETWEEN SHOP DRAWINGS/ DESIGN DRAWINGS AND AS BUILT DRAWINGS??

2 Answers   ACC, Al-Jaber, Dubai Group, ECEC,

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motor is 12.5hp after starting few minets motot get hot? why?

5 Answers  

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