Method for evaluating operability of filter components in power

Details Method for evaluating operability of filter components in power Method for evaluating operability of filter components in power

1993-04-09

1994-09-06

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361 79, 361 54, 318376, H02H 346

Patent

active

053453581

ABSTRACT:
A method for measuring capacitance in a power conversion system by measuring the time rate of discharge of the capacitance means and computing the value of capacitance corresponding to the measured discharge rate and a method for verifying that a filter in the power conversion system is effective for suppressing preselected frequencies corresponding to signalling frequencies used in a transit system. In this latter form, the system periodically initiates a self-test function in which the preselected frequency is injected into the system for verifying that the system will detect signals at the preselected frequency.

REFERENCES:
patent: 4713604 (1987-12-01), Becker et al.

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