There is a sphere-sphere electrode system in the insulation medium of air (Es=30 kV/cm), in which radii of the spheres are r,. After, by changing radii of the spheres to r2, a new sphere-sphere electrode system, in the same insulation medium, is made. The graphs of breakdown voltage by changing electrode separation for both electrode systems are shown. The correction factor is 90%. electrode Find the ratio of r2 to rị. Spherical Spherical electrode 200 180 160 140 120 100 with radius rl with radius r2 80 60 40 20 01 2 4. 10 11 12 13 14 15 16 17 18 19 20 d (em) Breakdown Voltage (kV)
There is a sphere-sphere electrode system in the insulation medium of air (Es=30 kV/cm), in which radii of the spheres are r,. After, by changing radii of the spheres to r2, a new sphere-sphere electrode system, in the same insulation medium, is made. The graphs of breakdown voltage by changing electrode separation for both electrode systems are shown. The correction factor is 90%. electrode Find the ratio of r2 to rị. Spherical Spherical electrode 200 180 160 140 120 100 with radius rl with radius r2 80 60 40 20 01 2 4. 10 11 12 13 14 15 16 17 18 19 20 d (em) Breakdown Voltage (kV)
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Transcribed Image Text:There is a sphere-sphere electrode system in the insulation medium of air
(E=30 kV/cm), in which radii of the spheres are r1. After, by changing radii of
the spheres to r2, a new sphere-sphere electrode system, in the same insulation
medium, is made. The graphs of breakdown voltage by changing electrode
separation for both electrode systems are shown. The correction factor is 90%.
Find the ratio of r2 to r̟.
Spherical
Spherical
electrode
electrode
200
180
160
140
120
100
with radius rl
with radius r2
80
60
40
20
2
4
9
10
11
12
13
14
15
16 17
18
19
20
d (cm)
Breakdown Voltage (kV)
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