Randomness fault detection system

Details Randomness fault detection system Randomness fault detection system

1993-10-15

1996-01-16

Regan, Maura K.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

364483, G01R 3102

Patent

active

054850932

ABSTRACT:
A method and apparatus are provided for detecting a fault on a power line carrying a line parameter such as a load current. The apparatus monitors and analyzes the load current to obtain an energy value. The energy value is compared to a threshold value stored in a buffer. If the energy value is greater than the threshold value a counter is incremented. If the energy value is greater than a high value threshold or less than a low value threshold then a second counter is incremented. If the difference between two subsequent energy values is greater than a constant then a third counter is incremented. A fault signal is issued if the counter is greater than a counter limit value and either the second counter is greater than a second limit value or the third counter is greater than a third limit value.

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