Mobile bridge test apparatus and method utilizing a sub-power fr

Details Mobile bridge test apparatus and method utilizing a sub-power fr Mobile bridge test apparatus and method utilizing a sub-power fr

1976-11-09

1978-09-05

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3112, G01R 2700

Patent

active

041123549

ABSTRACT:
This apparatus is for evaluation installed cable systems, including those that are already in use. The apparatus measures dissipation factor, partial discharge (corona) and insulation resistance of the cable system; all of these being necessary to determine the condition of the cables. This invention is unique, in that it can be used with installed cable systems that have their metallic shielding grounded; and the apparatus can be mounted on a truck or trailer for movement to any place where an installed system is to be evaluated.

REFERENCES:
patent: 1253211 (1918-01-01), Chubb
patent: 1943392 (1934-01-01), Paine et al.
patent: 2130865 (1938-09-01), Watts et al.
patent: 3189818 (1965-06-01), Frakes

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