Answer / george

oil emersed xformer- uses oil for cooling system

dry type xformer uses only his housing for cooling system.
we call it heat sink

Answer / raza

In Oil transformer, Mineral Oil is used for insulation and
cooling pupose but in dry type transformer, no any kind of
oil is used. In dry type transformer, other methods of
cooling are used i.e. air cold, water cold etc. and for
insulation purpose air, vaccume etc. are used.

explain with diagram how to protect transformers and substations from over current with help of CT's?

0 Answers   BARC,

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What products have you designed which have entered high volume production?

0 Answers   Intel,

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wat are the transmission losses.... how can it be compensated....... wat s power system.......

1 Answers   NPC, NTPC, TCS,

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how to determine kilowatts (real power) is used in energy meter? is it apparent power effect the disk rotation?

1 Answers  

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define the non synchoronism of synchoronous machine in general g or m??

0 Answers  

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Why Generator KVA not in KW ?

3 Answers   Bygging India, HHH, Tata Motors, TVS,

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Why lightning arrester blast in rainy day?

1 Answers   Eco Cement, Mahaveer, MBDL,

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for opening electrical shop, tips needed.

0 Answers  

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Wat wil happen if Transformer is operated at 100 HZ Frequency?

8 Answers  

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How to know the Max. current caring capacity of the cable by its size ?

0 Answers   SFPL,

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how will be power factor while using the resistive load and Capacitive load?

3 Answers  

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what is earth pit , how we can measured it, what earth rods reference

0 Answers   ups,

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