Recovery of Mineral Oil from Underground Electrical Cables

Calculating Intermediate Faults in Underground Cables

Short-circuit calculations are extremely important in the application and setting of protective relays and the analysis of power system operations. This paper illustrates the calculation of fault currents and voltages during intermediate faults in underground cables, taking into consideration the cable sheath bonding and grounding method. The compensated ground loop impedance for faults along t...

A Novel Approach for Prioritizing Maintenance of Underground Cables

This is a project report from the Power Systems Engineering Research Center (PSERC). PSERC is a multi-university Center conducting research on challenges facing a restructuring electric power industry and educating the next generation of power engineers. More information about PSERC can be found at the Center's website: Notice Concerning Copyright Material PSERC members are given permission to ...

Rational Approximation to Full-Wave Modeling of Underground Cables

The full-wave model of underground cables is presented. The solutions of this model in frequency domain, applied in underground insulated, cable is evaluated. To allow the inclusion of this formulation in EMT programs a rational vector fitting of the propagation constant, characteristic admittance Yc and the propagation function H in frequency domain is presented. The simulations in time domain...

Electrical Analysis of Corn Oil as an Alternative to Mineral Oil in Power Transformers

Abstract—In insulation and cooling of power transformers various liquids are used. Mineral oils have wide availability and low cost. However, they have a poor biodegradability potential and lower fire point in comparison with other insulating liquids. Use of a liquid having high biodegradability is important due to environmental consideration. This paper investigates edible corn oil as an alter...

Removal of mineral oil from engineers' overalls.