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fault current limiter temperature
Problem type:
3D problem of DC conduction, heat transfer
Geometry:
Given:
Electrical conductivity of the copper: γ = 56 MS/m
Rated current I = 100 A
Thermal conductivity of the porcelain body = 2 W/K-m
Ambient temperature T = +20°C.
Task:
Calculate the temperature of the fuse
Solution:
First the DC conduction electric problem is simulated to compute current density and losses in the elements. Then heat transfer problem is simulated.
Result:
Current density distribution in the fuse.
Losses distribution: terminals 0.27W, fuse 1.9W, sticker 0.55W.
Temperature distribution in the fuse current limiter. Fuse central part temperature is 48°C.