AQ-103 Arc Flash Protection - Medium Voltage

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    AQ-103 sophisticated microprocessor-based arc flash protection unit for arc light detection.


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    The AQ-103 acts as a sub-unit to AQ-110P (or, AQ-110F) in an AQ-100 arc protection system. It can also function as a stand-alone unit in light-only systems. The AQ-103 is designed to minimize the damage caused by an arcing fault (arc flash) by tripping the circuit breaker that sources the fault current. The complete system self-supervision function of AQ-101 provides the highest level of dependability by continuously monitoring all internal system functions as well as with external connections. AQ-103 provides communication through RS-485 and Modbus protocol as ordering options. Through the Modbus communication AQ-103 connects to a local display (AQ-S254) for indication of exact fault location and to a SCADA system either trough a AQ-S254 or RTU.

    Features include:

    • A wide range for the power supply (18…72 V DC or 80…265 V AC/DC)
    • A maximum of 14 arc light point sensors (1 point sensor per channel)
    • A maximum of 1 fiber loop sensor (optional)
    • 4 trip relays
    • 1 system failure relay
    • 1 fast binary output
    • 2 fast binary inputs
    • 1 multifunction push button
    • Non-volatile memory
    • 25 indication LEDs
    • Modbus protocol (optional)
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