Method for determining the magnitude of an open fault in one of a pair of current carrying conductors by measuring the voltage across a capacitance in series with the capacitance of said pair

Claim 1

A METHOD OF DETERMINING THE MAGNITUDE OF AN OPEN FAULT IN ONE OF TWO ASSOCIATED CURRENT CARRYING CONDUCTORS OF A CABLE COMPRISING; CONNECTING THE ENDS OF SAID ONE CONDUCTOR OF SAID PAIR TOGETHER BY A COMMON BUSS, CONNECSTING A CAPACITANCE EQUAL IN VALUE TO THE CAPACITANCE NORMALLY EXISTING BETWEEN THE CONDUCTORS OF SAID PAIR WHEN NO FAULT IS PRESENT, IN SERIES WITH THE CAPACITANCE OF SAID PAIR OF CONDUCTORS EXHIBITING A FAULT, APPLYING AN A.C. VOLTAGE ACROSS SAID TWO CAPACITANCE IN SERIES, AND MEASURING THE VOLTAGE ACROSS SAID FIRST PAIR OF CONDUCTORS AND ACROSS SAID CAPACITANCE IN SERIES THEREWITH, RESPECTIVELY, A CLOSE CORRESPONDENCE BETWEEN THE TWO MEASURED VOLTAGES INDICATING A SMALL OPEN FAULT CONDITION, A WIDE VARIATION BETWEEN SAID TWO MEASURED VOLTAGES INDICATING A CORRESPONDINGLY LARGER OPEN FAULT CONDITION.

Claim 2

A METHOD OF DETERMINING THE MAGNITUDE OF AN OPEN FAULT IN ONE OF TWO ASSOCIATED CURRENT CARRYING CONDUCTORS OF A CABLE COMPRISING; CONNECTING THE ENDS OF SAID ONE CONDUCTOR OF SAID PAIR TOGETHER BY A COMMON BUSS, CONNECSTING A CAPACITANCE EQUAL IN VALUE TO THE CAPACITANCE NORMALLY EXISTING BETWEEN THE CONDUCTORS OF SAID PAIR WHEN NO FAULT IS PRESENT, IN SERIES WITH THE CAPACITANCE OF SAID PAIR OF CONDUCTORS EXHIBITING A FAULT, APPLYING AN A.C. VOLTAGE ACROSS SAID TWO CAPACITANCE IN SERIES, AND MEASURING THE VOLTAGE ACROSS SAID FIRST PAIR OF CONDUCTORS AND ACROSS SAID CAPACITANCE IN SERIES THEREWITH, RESPECTIVELY, A CLOSE CORRESPONDENCE BETWEEN THE TWO MEASURED VOLTAGES INDICATING A SMALL OPEN FAULT CONDITION, A WIDE VARIATION BETWEEN SAID TWO MEASURED VOLTAGES INDICATING A CORRESPONDINGLY LARGER OPEN FAULT CONDITION.