CONSTANT CURRENT REGULATOR
IS 12291-1987 FAA AC 150/5345-10: L-828 and L-829 ICAO Aerodrome Design Manual, Part 5
The Constant Current Regulator (CCR) is designed to provide precision control of runway lightning circuits.
These regulators are air cooled and designed for indoor service.
The key features are:
- Resonant type
- Thyristor type
- Air-cooled
- Ammeter (0.5% accuracy)
- Regulation + 1% over 0 to 100% load and + 10% to-5% line voltage with no tap changes
- On – off switching under load
- Lightning and transient protection: input and output lines
- Efficiency – 90% minimum
- High power factor
- Remote reset capability
- Output current maintained with 30% open isolation transformer secondaries
- Open circuit protection
- Over current protection
- Soft On/Off
- Temperature – 40C to +55C
- Plug -in printed circuit boards
- Circuit board compatibility with small dry CCR (ET – 6.9)
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