US Patent No. 10,485,064

DEVICES, METHODS, AND SYSTEMS FOR ALTERNATING CURRENT CIRCUITS FOR AIRFIELD LIGHTING


Patent No. 10,485,064
Issue Date November 19, 2019
Title Devices, Methods, And Systems For Alternating Current Circuits For Airfield Lighting
Inventorship Nipun Kumar Chawda, Bangalore (IN)
Hans-Willy Schuett, Brande-Hoernerkirchen (DE)
Reiner Wiechert, Uetersen (DE)
Assignee Honeywell International Inc., Morris Plains, NJ (US)

Claim of US Patent No. 10,485,064

1. A system for alternating current circuits for airfield lighting, comprising:a circuit comprising an isolation transformer;
a protection hardware circuit coupled to the isolation transformer, wherein the protection hardware circuit prevents a voltage between an electrical contact of the circuit and a ground contact from meeting or exceeding a threshold voltage, and wherein the protection hardware circuit includes a circulating path through a normally open (N/O) relay contact for load sensing logic, and wherein the protection hardware circuit includes a load sensor to determine when a load is decoupled from the protection hardware circuit; and
the load coupled to the protection hardware circuit to receive electrical energy from the isolation transformer.