Electric pipe thawing apparatus with current sensing means

Details Electric pipe thawing apparatus with current sensing means Electric pipe thawing apparatus with current sensing means

E - Fixed Constructions

03

B

309/28, 309/4

E03B 7/14 (2006.01) H02H 3/08 (2006.01) H05B 3/00 (2006.01)

Patent

CA 1090860

ABSTRACT OF THE DISCLOSURE Apparatus for heating pipes and particularly for thawing frozen pipes is disclosed. The apparatus may be a self contained trailer having a generator and step-down transformer. One pair of terminals is connected to the secondary of the transformer and a pair of bus bars is also connected across the secondary. A current transformer operates a warning system indicating that the current to the first terminals is above a maximum value. This warns the operator that another pair of cables is necessary to heat effectively the pipe.

269414

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