AQ-110FLV Arc fiber sensor device with overcurrent
AQ-110FLV-front-crop-web
AQ-110FLV-front-crop-web

Description

The AQ-110FLV arc flash protection device for medium-voltage systems supports both current and light sensing. Acting as the main unit of the arc flash protection system, the AQ-110FLV detects overcurrent in the incoming feeder and a light signal from a sub-unit, or from a light detection sensor connected to the device itself. It then trips the circuit breaker that is the source of the fault current, thereby significantly reducing the damage caused by an arcing fault (arc flash).

The AQ-110FLV devices also support Rogowski sensors, offering superior flexibility and ease of installation, especially for retrofit projects. This feature also enables the expansion of arc flash protection to parts of the switchgear that are not covered by current transformers.

This multipurpose arc flash protection device is suitable for a variety of applications, from stand-alone devices to a main unit of a more complex arc protection system. AQ-110FLV’s Modbus RTU communication enables integrating the arc flash protection system into a SCADA/DCS system directly, or via an AQ 250 protection and control device. This allows for transferring all data about the alarms, sensors, and input/output signals –available locally on the HMI of the arc protection device– to the SCADA/DCS system e.g. according to the IEC 61850 standard.

Highlights:

  • A wide range for the power supply (18…72 V DC or 92…265 V AC/DC).
  • Three-phase current detection.
  • Support for Rogowski sensors.
  • Max. 3 fiber loop sensors per main unit.
  • Connectivity to AQ-1000 arc quenching device.
  • 4 trip relays (with 7 ms total trip time).
  • Complete system self-supervision.
  • 2 binary inputs and 1 binary output.
  • A multi-function push button (“SET”) with auto-configuration, indication reset, and system check.
  • 18 indication LEDs

Learn more about how different protection techniques affect the consequences of an arc flash:

“Arc flash comparison” by Arcteq Relays (https://youtu.be/EUlZ_a_rcIg)

AQ-110FLV-front-crop-web

Technical data

  • Overcurrent and light (50Arc)
  • Earth fault and light (50NArc)
  • Light only
  • Circuit breaker failure protection (50BF/52BF)
  • Total trip time: 7 ms

  • AQ-06 plastic fiber sensor (3...40 m)
  • AQ-07 glass fiber sensor (3...50 m length)
  • AQ-08 glass fiber sensor (3...15 m)

  • Trip relays (T1, T2, T3, T4)
  • 4 NO or 3 NO + 1 NC
  • Rated voltage: 250 V AC/DC
  • Continuous carry: 5 A
  • Make-and-carry for 3 s: 16 A
  • Make-and-carry for 0.5 s: 30 A
  • Binary output (BO1)
  • Number of outputs: 1
  • Rated voltage: +24 V DC
  • Binary inputs (BI1, BI2)
  • Number of inputs: 2
  • Threshold voltage: 24 V DC
  • Rated voltage: 250 V
  • Power supply
  • Auxiliary power supply: 92…265 V AC/DC
  • Auxiliary power supply: 18…72 V DC (optional)

  • 18 indication LEDs
  • Multi-function push button (SET) with auto-configuration, indication reset, and system check

  • Internal functions:
  • Power supply
  • Trip coil
  • Internal voltages
  • Settings
  • External connections:
  • Sensors and wiring
  • Binary I/O
  • CT connections

  • AQ 100 series
  • AQ 200 series
  • AQ 300 series
  • AQ-1000 arc quenching device (LV)
  • AQuench arc quenching device (MV)

  • AX006 Wall mounting bracket

Additional material

Application Drawing

AQ-110FLV wiring diagram

Related products

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