[Thomas] picked up a Marconi TF1245 with dents and dings. We have to admit that we had not heard of a “circuit magnification meter,” but apparently, this was a thing in the late 1960s a… ...

Table 1. Test connections for the DC overpotential test. Test connections for the DC overpotential test are given in Table 1 (right), which will provide a test of all possible leakage paths in the ...

Calibration is required once per breaker type. There is considerable cross-talk from adjacent circuit breakers, and an adaptive algorithm reduces errors from this to 5% after 15min of operation ...