WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers  

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List the disadvantages of constant k filters?

0 Answers  

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A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

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what is called inrush current??

1 Answers   KSEB,

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Readings of ER300P Trivector meter

0 Answers  

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why transformer are rated in kva.

5 Answers   Dalkia, Nalco,

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protection used for alternator , feeder , transmission line

3 Answers   NHPC, Perfetti,

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For 7.5kw star delta starter how to calculate 1. Mccb rating 2. Contactor rating 3. Over load relay rating

1 Answers   L&T, MAHINDRA,

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Why is transformer a machine

1 Answers   Grasim,

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why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

2 Answers  

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how to calculate the cable size depending on the amps?

1 Answers   Polycab,

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what is practical efficiency of power transformer..?

1 Answers  

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