Patent ID: 6366208
Filing Date: 2002-04-02
Classification: G01R,H05B

Abstract:
A diagnostic analyzer for connection to an electrical power supply and diagnosing the presence of a fault, the power supply including power input terminals and power output terminals for connection to a load, fault detection circuits, and a power application circuit controlling application of power to the power output terminals in response to the fault detection circuits, the diagnostic analyzer comprisingpower input terminals for connection to a source of electrical power, power output terminals connectable to the power input terminals of the power supply, a power flow circuit monitoring power flow from the power output terminals of the diagnostic analyzer to the power input terminals of the power supply, and a diagnosis circuit connected to the power flow circuit, the diagnosis circuit generating a command signal for delivery to said power supply via said power output terminals of said diagnostic analyzer, and evaluating the power flow monitored by the power flow circuit to identify power flow patterns indicative of a fault, the diagnosis circuit signaling the presence of a fault upon recognition of a power flow pattern indicative of a fault.