Lamp Fault Detection (LFD) The LFD provides accurate and real time detection of the number of burnt out lamps and power loss in a series circuit. The option consists of a PCB mounted into the low voltage compartment of the CCR, a current transformer, including voltage limitation for level adaptation, and a voltage measurement directly on the power

The LFD provides accurate and real-time detection of the number of burntout lamps (up to 15 lamps) in a series circuit whereas the EFD measures the insulation resistance of the series circuit to the ground, with the regulator Output both ON and OFF.

Lamp (LFD) and Ear th Fault Detection (EFD) Both modules come standard with each delivered CCR. The LFD provides accurate and real-time detection of the number of burnt-out lamps, up to 15 lamps, in a series circuit whereas the EFD measures the insulation resistance of the series circuit to the ground, with the regulator both ON and OFF.

Introduction to Constant Current Regulators (CCR) in Airfield Ground Lighting (AGL) systems. Features, specs, and operating principles of ADB MCR³.

DIAM4000 series CCRs are low-cost fully static devices controlled by two thyristors. They are designed to maintain a constant, pre-displayed and adjustable output current independently of load or power supply fluctuations. These devices are specifically designed for airfield lighting on runways, taxiways or aprons.

See IEC 61820 & 61821 standard (CCR type IEC), or FAA AC150/5340-26 advisory circular (CCR type FAA), concerning safety rules and precautions. While practical safety precautions have been incorporated in this equipment, the following rules must be strictly observed : • KEEP AWAY FROM LIVE CIRCUITS :

Detection (LFD) The operation of the LFD is based on the change in the output waveforms when a series transformer saturates as a consequence of the lamp having blown at the secondary side. The LFD can be used together with a CS.

This document provides instruction for installing and operating a Microprocessor controlled Constant Current Regulator. Key details include: - Technical specifications for output current regulation and configurations ranging from 2.5 to 30 kVA. - Descriptions of the basic configurations including power modules, control module, and optional modules.

To the left, the status window (1) is always present and shows: • the output current (as a thermometer-like vertical bargraph and as a value) • the mains voltage • the currently active step • the number of burnt lamps (if LFD option is installed) • the insulation resistance of the series circuit (if EFD option is installed) • the ...

Key details include technical specifications for output circuit values and current regulation limits. It also describes basic configurations for 2.5-10 kVA and 15-30 kVA units, components, user interface functions, monitoring functions, remote control/indication options, …