The Short-Time Transient Temperature Rise of Self-Contained Oil-Filled Cable Systems with Particular Reference to Oil Demands

The determination of the short-time transient temperature rises of self-contained oil-filled cable systems, which is a necessary part of the calculation of their oil demands and pressures, requires finding the roots of an equation involving Bessel functions. Families of curves are presented from which the roots may be obtained by simple calculations for any given cable system, together with other necessary parameters. These parameters, when substituted in the equations presented, yield the unit transient temperature rises and oil demands and, also, the maximum oil demand when dropping a sustained load of a determined critical value.