Revision Standard - Superseded.
Guidance is provided for the calculation of interfering voltages and their appropriate reduction from worst-case values for use in wire-line telecommunication protection design. Information is also included for the determination of the fault current and earth-return current levels; their probability, waveform, and duration; and the impedance to remote earthing points used in these ground potential rise (GPR) and longitudinally induced voltage calculations. The zone of influence of the power station GPR; the calculation of the inducing currents; the mutual impedance between power and wire-line telecommunication facilities and shield factors; and the channel time requirements for wire-line telecommunication facilities where noninterruptible channels are required for protective relaying and other purposes are covered.
| File Size : | 1
file
, 6.8 MB |
| ISBN(s) : | 9780738141947 |
| Note : | This product is unavailable in Russia, Belarus |
| Number of Pages : | 165 |
| Product Code(s) : | STDSU11304 |
| Published : | 04/29/1988 |
