a. This for a vital link between generator, GT, UAT, SPPT, SET and neutral grounding transformer.
b. The continuous enclosure operating at ground potential limits the leakage flux outside the enclosure to a very low value thereby eliminating the problem of inductive heating of magnetic materials in the vicinity of the busduct.
c. Shielding effect of the enclosure reduced the electromagnetic forces under fault conditions between bus to bus to a great.
d. The IPBD consists of high purity aluminium alloy bus supported by high strength porcelain insulator (24 kV class) within enclosure separates adjacent conductor by air. This eliminates phase to phase faults to a great extent.
e. Practically negligible inductive heating on adjacent steel structure.
f. High current carrying capacity. Because the conductors are of circular type having very little skin effect and has a very large cooling surface.
g. Conductors are painted with epoxy Matt black paint results in heat dissipation and the temperature rise is small and current carrying capacity is improved.
h. High dielectric strength as conductors are supported on porcelain insulators.
i. Air tight, watertight and dust free bus conductors. Hence maintenance is nil.
j. Separate parts erected IPBD. Hence changing parts makes it easy.