What is the phase sequence of a three-phase motor for which VAN =220 /-100° V and VeN =220 140°V ? Q1. a) abc \00 b. acb VAN Q2. If in an acb phase sequence, VAN =100 /-20° ,then VCN is : VeN a, Van =100 /-140° b. VAN =100 /100° c. VAN =100 /-50° %3D -120 220 十 d. VAN =100 /10° Q3. Which of these is not a required condition for a balanced system: a. VAN =|VeN=|VCN| b. TAN + Ian + IN = 0 c. VantVBn+VCN=0_ d. Source voltages are 120° out of phase with each other. Load impedances for the three phase are equal. v
What is the phase sequence of a three-phase motor for which VAN =220 /-100° V and VeN =220 140°V ? Q1. a) abc \00 b. acb VAN Q2. If in an acb phase sequence, VAN =100 /-20° ,then VCN is : VeN a, Van =100 /-140° b. VAN =100 /100° c. VAN =100 /-50° %3D -120 220 十 d. VAN =100 /10° Q3. Which of these is not a required condition for a balanced system: a. VAN =|VeN=|VCN| b. TAN + Ian + IN = 0 c. VantVBn+VCN=0_ d. Source voltages are 120° out of phase with each other. Load impedances for the three phase are equal. v
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:-zuo
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Q1.
What is the phase sequence of a three-phase motor for which
VAN =220 /-100° V and VeNn =220 /140° V ?
4
a. abc
100
b. acb
VAN
Q2. If in an acb phase sequence, VAN =100 /-20° ,then VCN is :
VeN
(a, Van =100 /-140°
b. VAN =100 /100°
cー9に
c. VAN =100 /-50°
-120
220
d. VAN =100 /10°
Q3. Which of these is not a required condition for a balanced system:
a. |VAn|=|VeN|=|VCN|
b. TAn + IBn + lèN = 0
c. VantVen+VcN=0_& €
d. Source voltages are 120° out of phase with each other. r
e Load impedances for the three phase are equal.
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