Transient Calculations on Crossbonded Cables

The present paper describes accurate and approximate methods of calculating transients on a crossbonded cable. Calculated results are compared with field test results, and the accuracy of the calculation, which has never been discussed in the previous publications, is proved. It is characteristic to a crossbonded cable that the sheath overvoltage is much greater than that on a noncrossbonded cable. This overvoltage is due to the reflection of a traveling-wave from the crossbonded points. The approximate method of a calculation shows satisfactory results with much smaller computation time in comparison with the accurate method if the number of crossbonding is large.