APPARATUS FOR MEASURING THE TEMPERATURE AND OTHER PARAMETERS OF AN ELECTRIC POWER CONDUCTOR

摘要

A self-contained hot stick mounted radio transmitting module capable of measuring the temperature of the power conductor of an electrical transmission line, and the temperature of the ambient air. It may also measure one or more electrical characteristics of the conductor. The data are transmitted for local display and/or at a power control center.
The modules are donut-shaped and open like a pair of jaws. One or more spring-loaded temperature probes (54, 72) are located such that they may be pushed against a power line (42) when a "donut" is mounted to a hot stick (70) with the jaws open.
Power to an open module is supplied by a battery. Power to a closed module, mounted on a conductor, may be supplied by the battery or by power derived from the conductor.
A donut may be left on the power line for an indefinite time and the hot stick removed, or instantaneous measurements may be made with the hot stick attached, and the module then immediately removed.
The temperature probe of the present invention comprises a pair of concentric spring-loaded tubes (227, 230). A beryllia insert (56) is mounted between a temperature sensor (52) and the power conductor.