A 3,000-kw 750-volt d-c 60-cycle six-phase synchronous converter is fed from a three-phase 23,000-volt high-voltage line through &bank of three transformers that are connected in Δ on the high side and diametrical on the low side. (A) Make a winding diagram showing all connections for the problem. Assuming an efficiency and power factor of 96percent and 0.95, respectively, calculate: (B) the direct-current output; (C) the a-c voltage between adjacent slip rings.

A 3,000-kw 750-volt d-c 60-cycle six-phase synchronous converter is fed from a three-phase 23,000-volt high-voltage line through &bank of three transformers that are connected in Δ on the high side and diametrical on the low side. (A) Make a winding diagram showing all connections for the problem. Assuming an efficiency and power factor of 96percent and 0.95, respectively, calculate: (B) the direct-current output; (C) the a-c voltage between adjacent slip rings.

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 3.56P: Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit...

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