A system and method for monitoring the health of a heater connected to a power supply by a power cable that includes a first power lead conducting an inlet current having an inlet current direction, and a second power lead conducting an outlet current having an outlet current direction opposite to the inlet current direction. The power cable passes through a center region of a toroid core one or more times, and a secondary winding on the toroid core is configured to induce a secondary voltage indicative of a difference between the inlet current and the outlet current, which defines the leakage current. The system includes a prognostic processor that is configured to calculate a heater health indication based on the secondary voltage, which is indicative of the heater health.
DIFFERENTIAL LEAKAGE CURRENT MEASUREMENT FOR HEATER HEALTH MONITORING
2020-12-03
Patent
Electronic Resource
English
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes / H05B ELECTRIC HEATING , Elektrische Heizung |
DIFFERENTIAL LEAKAGE CURRENT MEASUREMENT FOR HEATER HEALTH MONITORING
European Patent Office | 2021
|Differential leakage current measurement for heater health monitoring
European Patent Office | 2023
|DIFFERENTIAL LEAKAGE CURRENT MEASUREMENT FOR HEATER HEALTH MONITORING
European Patent Office | 2020
|