Choose the correct Answer of the following: i-The insulation used in high voltage circuit breakers of large power rating is d-mineral oil. a-air. b-vacuum. c-SF6. ii-The breakdown criterion in a uniform field electrode gap is c-yed =1_ d-yed =1 a-a=1 b-a-n/(1-y) iii-An experimental method for computing the electric field distribution is a-solution of Laplace equation b-electrolytic tank method c-digital simulation d-field intensity method
Choose the correct Answer of the following: i-The insulation used in high voltage circuit breakers of large power rating is d-mineral oil. a-air. b-vacuum. c-SF6. ii-The breakdown criterion in a uniform field electrode gap is c-yed =1_ d-yed =1 a-a=1 b-a-n/(1-y) iii-An experimental method for computing the electric field distribution is a-solution of Laplace equation b-electrolytic tank method c-digital simulation d-field intensity method
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...
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![Choose the correct Answer of the following:
i-The insulation used in high voltage circuit breakers of large power rating is
a-air. b-vacuum. c-SF6. d-mineral oil.
ii-The breakdown criterion in a uniform field electrode gap is
a-α = 1
b-a-n/(1-y)
c-yend=1
d-yed =1
iii-An experimental method for computing the electric field distribution is
a-solution of Laplace equation b-electrolytic tank method c-digital simulation
d-field intensity method
iv-ionization coefficients a, y are function of
a-applied voltage b-pressure and temperature c-electric field d-ratio of
electric field
to pressure
v-The relation between breakdown strength and gap distance in liquid dielectric is
b-Kd"
V₂:
a-K/d
c-Kd
d-(Kid + K₂)
vi-Dielectric constant of mineral oils is about
a- 1.5 to 2
b-2.2 to 2.4 c-3 to 3.5
d-1.008
vii-For a 1cm gap in air at 760 mm pressure and 20 °C temperature the
breakdown voltage is:
a- 24kV b-30.3kV c-22.92kV
d-40kV](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0eb4bc99-2fef-4cde-b28a-38fe2725e1e2%2F5d73e168-e58b-40c6-903f-452c0a09dcf9%2Flgf2g9r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Choose the correct Answer of the following:
i-The insulation used in high voltage circuit breakers of large power rating is
a-air. b-vacuum. c-SF6. d-mineral oil.
ii-The breakdown criterion in a uniform field electrode gap is
a-α = 1
b-a-n/(1-y)
c-yend=1
d-yed =1
iii-An experimental method for computing the electric field distribution is
a-solution of Laplace equation b-electrolytic tank method c-digital simulation
d-field intensity method
iv-ionization coefficients a, y are function of
a-applied voltage b-pressure and temperature c-electric field d-ratio of
electric field
to pressure
v-The relation between breakdown strength and gap distance in liquid dielectric is
b-Kd"
V₂:
a-K/d
c-Kd
d-(Kid + K₂)
vi-Dielectric constant of mineral oils is about
a- 1.5 to 2
b-2.2 to 2.4 c-3 to 3.5
d-1.008
vii-For a 1cm gap in air at 760 mm pressure and 20 °C temperature the
breakdown voltage is:
a- 24kV b-30.3kV c-22.92kV
d-40kV
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