Q4: Draw the single line diagram of a substation having the following equipments: ) Incoming lines: Two, 400kV i) Outgoing lines: (a) four, 400KV (b) four, 33kV ii) Transformers: (a) One, 100MVA, 400/132KV, D/Y (b) One, 20MVA, 132KV/33 D/Y11, One, MVA, 33KV/420V,Y/Y v) Bus-bars: 400 kV-Duplicate bus-bar, 11kV single bus-bar, 33kV single bus-bar Show the positions of necessary equipments that using for protections, measurements and communications.

Q4: Draw the single line diagram of a substation having the following equipments: ) Incoming lines: Two, 400kV i) Outgoing lines: (a) four, 400KV (b) four, 33kV ii) Transformers: (a) One, 100MVA, 400/132KV, D/Y (b) One, 20MVA, 132KV/33 D/Y11, One, MVA, 33KV/420V,Y/Y v) Bus-bars: 400 kV-Duplicate bus-bar, 11kV single bus-bar, 33kV single bus-bar Show the positions of necessary equipments that using for protections, measurements and communications.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.64P: The per-unit equivalent circuit of two transformers Ta and Tb connected in parallel, with the same...

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For large power transformers rated more than 500 kVA, the winding resistances, which are small compared with the leakage reactances, can often be neglected. (a) True (b) False
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