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Helios Rectifier 25/48NT5C06D Installation and User Manual
4. Operation
In addition to rectifying the AC, the input circuit provides EMI filtering,
inrush current limiting, low and high AC inhibit, power factor compensation,
surge voltage protection, and is equipped with a 13 A AC breaker for input
protection.
The output section provides additional EMI filtering and contains an internal
shunt for output DC current measurement and a 35 A circuit breaker for
output protection.
The monitoring circuitry includes; soft start, rectifier fail alarm (RFA),
monitoring and control for local and remote equalize, temporary release,
thermal shutdown, low and high AC voltage inhibit, loss of AC voltage
alarm, local and remote high voltage shutdown (HVSD), local and remote
HVSD reset, and fan failure detection.
A 2-1/2 digit output current meter displays the output current. An internal
logic power supply provides the various voltages required by the logic
circuitry and the cooling fan unit.