Graphical and tabular results of computer simulation of faulted URD cables. Volume 2: handbook and graphical data

Technical Report · Mon Jun 01 04:00:00 EDT 1981

OSTI ID:6477896

Joy, E B; Meliopoulos, A P; Webb, R P

A method for computing shield potentials of underground residential distribution (URD) cable shield potentials is presented. Earth potentials in the vicinity of the buried cable are also computed. The method utilizes a numerical solution of Laplace's equation to account for earth currents, and a modified nodal analysis method to account for conductor and shield currents as well as inductive coupling in the underground cable system. A computer program has been developed capable of analyzing long lengths of URD cable together with existing ground rods, faults, open neutrals, feeding substation, and substation grounds. The system analyzed corresponds to practical URD cable distribution systems. Extensive simulation of various URD cable systems in various soil environments has been performed and the results tabulated. The simulation program employed and the applicable theory is documented in Volume 1 of this report. In Volume 2 of the report, the simulation results are documented in handbook form. From these graphs and tables, touch and step potentials on the earth surface can be determined for various cable types, network connections, and soil types.

• Research Organization: Georgia Inst. of Tech., Atlanta (USA). School of Electrical Engineering
• OSTI ID: 6477896
• Report Number(s): EPRI-EL-1605-Vol.2; ON: DE81903934
• Country of Publication: United States
• Language: English

Related Subjects

200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
B CODES
CABLES
CHEMICAL REACTIONS
COMPUTER CODES
COMPUTERIZED SIMULATION
CONDUCTOR DEVICES
CORROSION
ELECTRIC CABLES
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
EQUIPMENT
POWER DISTRIBUTION
POWER TRANSMISSION
SHIELDING
SIMULATION
SOILS
UNDERGROUND POWER TRANSMISSION