Abstract

Today's civil constructions are developed using closed wiring so detecting of fault is becoming a big task to identify and solve where the fault is being located. So a pulse-type echo ranging fault locator has been developed which is suitable for locating sustained faults on telephone and power transmission lines. A number of these instruments have been in service for several years. They have been used to locate a wide variety of power and telephone line faults with signifcant reductions in service interruptions and economies in line patrolling. Before a new circuit is energized it may be tested with the line scope to ensure that all construction grounds have been removed and that all transpositions are correct. Telephone circuits also may be tested to locate sources of mismatch which introduce transmission losses. An automated fault recognizer has been developed, which operates on the same principle and which without any human intervention records the locations of sustained or transient power line faults.

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