Instruction manual – AQ 110 arc protection unit
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2
G
ENERAL
AQ 110 is a sophisticated micro-processor based arc flash protection unit with
combined current and arc sensing. Combined current and arc sensing provides
an integrated dual trip criteria. It is designed to minimize the damage caused by
an arcing fault (arc flash) by tripping the circuit breaker sourcing the fault current.
The AQ 110 complete system self-supervision function provides the highest level
of dependability by continuously monitoring all internal system functions along
with external connections.
AQ 110 is designed according to the latest protection relay standards and is
hence suitable for installations in any environment, such as utility, traditional or
renewable power plants, off shore, marine, oil and gas, mining, steel or any other
heavy industry applications as well as commercial and institutional electrical
systems. AQ 110 is suitable for either medium voltage or low voltage switchgear
and motor control center applications in both new and retrofit installations.
AQ 110 is a multipurpose arc flash protection unit and can be applied for variety
of applications. AQ 110 can be used as a stand-alone unit or as a main unit of a
more complex arc protection system through the binary bus.
2.1
A
RC PROTECTION UNIT
AQ
110
FEATURES
AQ 110 comes in two versions. AQ110P supports 4 point sensor channels and
optionally one fiber sensor channel. AQ 110F supports 3 fiber sensor channels.
All other features are the same in both versions. Main features of AQ 110:
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80-265Vac/dc auxiliary power supply or optional 18-72Vdc power supply
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3 phase current inputs (1/5 amps nominal)
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1 residual current input (1/5 amps nominal)
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4 arc point sensor channels and 1 arc fiber loop channel optionally (AQ
110P) or 3 arc fiber loop channels (AQ 110F)
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2 binary inputs (nominal voltage of 24 or 110 or 220Vdc)
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2 high-speed semiconductor trip outputs (direct trip circuit rated)
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2 normally open trip relay outputs (direct trip circuit rated)
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1 normally open or optionally normally closed (electronic lock-out) trip
relay output (direct trip circuit rated)
