A 3-phase delta/star transformer is supplied at 6000 V on the delta-connected side. The terminal voltage on the secondary side when supplying full load as 0.8 lagging power-factor is 415 V. The equivalent resistance and reactance drops for the transformer are 1% and 5% respectively. The turn's ratio of the transformer is:

A 3-phase delta/star transformer is supplied at 6000 V on the delta-connected side. The terminal voltage on the secondary side when supplying full load as 0.8 lagging power-factor is 415 V. The equivalent resistance and reactance drops for the transformer are 1% and 5% respectively. The turn's ratio of the transformer is:

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

4. 100 kVA, 6800-240 V, 50 Hz single phase step down transformer has the following parameters: RLs-0.008Ω RHs-2.6Ω Ri-HS-500 0Ω XLS-0.015Ω XHs=5.22 Xm,HS=88002 Transformer is delivering 80% of rated load at rated voltage and 0.95 lagging power factor. Determine the following: a) The equivalent impedance of the transformer referred to primary. b) Input impedance of the combined transformer and load. c) Actual input voltage at HV side. d) Input impedance if load is disconnected. e) Exciting current at no load.
In a step-down transformer ratio, which is larger the number of ratio O the number of turns O Secondary Voltage O Primary Voltage
A single phase transformer has a 600 turns in the pri- mary and 1200 turns in the secondary. The cross sec- tional area of the core is 905 sq.cm. If the primary winding is connected to a 50 Hz supply at 400V. The peak flux density is wb/m²
TYDDIAD I Q4-(A)-draw the phasor diagram of the transformer at full load with inductive load
Three single phase transformers are connected in a Delta-Wye configuration. Each transformer is rated 13kV/64kV. The transformers are connected to a 3 phase 13kV (L-L) supply and the balanced three phase load is 788KVA. What is the current magnitude in the secondary winding of each transformer? explain the steps too please
In no load Phasor diagram of practical transformer, the core loss current Ic is with primary voltage Vp. O Lagging O in phase O Leading O 90 degrees out of phase
The open-circuit voltage of 240 V and the full load secondary voltage of 226 V, then the % regulation of a transformer is
You have a large single phase transformer with 7 tap settings (@ 0,+2,+4,+6% and -2,-4, and -6%) that lets you adjust the load voltage if necessary. The primary voltage is 4800V and the secondary voltage desired is 240V. Draw this arrangement with the 0% tap setting selected.
A 2/0.4 kV, single-phase transformer takes a no-load current of 1 A and the core losses is 500 W. Find the magnetizing component current 0.35 A 0.15 A O 0.25 A 0.45 A
The table below shows some performance parameters of a certain power transformer. Full-load voltage regulation Full-load copper loss Load power factor 0.5 Lagging 5% The Maximum noccihle voltage regulation of the trane former is: 5.033 96 5.385 9 3 96 4.134 % 21 21