1. which type of transformer connection is preferred in case of power supply transformers? (A) Star/Star (B) Delta/Delta (C) Star/Delta (D) Zig Zag/Star 2. In a power transformer usuall which winding is closer to the core? (A) Primary winding (B) Secondary winding (C) Low Voltage winding (D) High Voltage winding 3. The power factor of a purely inductive load is (A) Zero (B) Lagging (C) Leading (D) Unity.

9 Answers   CECRI_Central_Electrical_Research_Institute,

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Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

0 Answers  

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Hi If connecting a temp generator 670KVA .415kv with step up Tx .415/11kv. I am given Generator impedances Z1 Z2 Z0 to 100MVA base. Do I need to work out the generator fault current by using these impedances i.e gen rating / impedance. Then use this as my source impedance for the calculations that follow.

0 Answers  

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definition of transformer

10 Answers  

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why shoud in High tension cable( above11KV etc.,)a semiconducting material coating will be there on insulation?

1 Answers  

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what is meant by negative conductor?

2 Answers  

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Can we parallel two grid with different incoming voltage. Ex.let say one grid is 132kv and another is 220kv.

2 Answers  

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If we increase frequency in transmission line in lieu of voltage what will happen?

1 Answers  

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why frequency meter is connected in parallel in a circuit?

1 Answers   University of Engineering and Technology,

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Why lightning arrester blast in rainy day?

1 Answers   Eco Cement, Mahaveer, MBDL,

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What is sequence network? Discuss all three types of sequence network.

1 Answers  

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Why is negative feedback invariably preferred in closed loop system?

0 Answers  

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