Star-connected 3+ supply Phase 3 (grey) Filtered Current Voltage sensors 1V/A Ө 13 V3 10 Phase 2 (black) Black Phase 1 (brown) Red Line currents 11 Power Neutral current 0.00 се Three-phase star-connected power supply (24V line) V2 CH2 brown V1 Star-connected balanced loads with neutral connection HEA› HFA³· HEA Im . m 1. m www 10 Ω 30 mH 100 μF 200 µF 400 μF +10 adaptors both channels Line 3 A Line 2 A Line 1 A Neutral ww www Figure 7 00000 · Delta- connected balanced load 102+ 200 µF 10 Ω (Delta) Black V12 V Red V2N Brown Brown VIN CH1 (N) CH2N Blue Blue Figure 8 L3 Induction Motor L2 L1 + Phase voltage Line and phase voltage measurements Phase voltage V1N, potential difference of line 1 with respect to 13.2V (phase 1) neutral (rms) Phase voltage Phase voltage V2N, potential -6.8ms (phase 2) difference of line 2 with respect to neutral (rms) Line voltage Line-to-line (line) voltage 23.8V (phases 1-2) (rms), V12 from meter Time difference for V12 Phase angle for V12 rel to V1N 1.8ms 32.8deg Calculate later to allow you to complete phasor diagram Draw accurately and to scale the phasor diagram showing how the rms magnitudes and phases of the line voltages V12, V23 and V31 relate to the phase voltages V1N, V2N and V3N, and use your diagram to show specifically (using your measured magnitude and phase of V12) that V12 = V1N- V2N

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 3.26P: A bank of three single-phase transformers, each rated 30MVA,38.1/3.81kV, are connected in Y- with a...