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| AQ-G357 Generator protection device  AQ-G357 Generator protection device   AQL357_web1         AQ-G357 Generator protection device AQL357_web1  Description AQ-G357 is a generator protection device for synchronized machines of all sizes. It integrates a full range of generator protection functions as well as a variety of additional functions for control, measurement, monitoring and communications.  **Highlights:**   * Generator/motor differential protection. * Distance protection and loss of excitation protection. * Overexcitation protection.  Download PDF      AQL357_web1   Technical data Protection   * Three-phase instantaneous/time overcurrent (I>; 50/51) * Residual instantaneous/time overcurrent (I0>; 50N/51N) * Directional three-phase overcurrent (Idir>; 67) * Directional residual overcurrent (I0dir>; 67N/32N) * Voltage-restrained overcurrent (Iv>; 51V) * Negative sequence overcurrent/ Current unbalance (I2>; 46) * Thermal overload (T>; 49) * Generator differential (87G) * Overvoltage (U>; 59) * Undervoltage (U>; 27) * Residual overvoltage (U0>; 59N) * Harmonic overvoltage (64H) * Over- and underfrequency (f>/<; 81O/81U) * Rate-of-change of frequency (df/dt; 81R) * Directional overpower (P<; 32O) * Directional underpower (P>; 32U) * Impedance protection * Loss of excitation (40) * Volts-per-hertz overexcitation (V/Hz>; 24) * Circuit breaker failure protection (CBFP; 50BF/52BF) * Inrush detection and blocking * Distributed busbar protection (sub-unit) (optional)     Control   * Common function * Trip logic (94) * Dead line detection * Voltage variation     Measuring and monitoring   * Current (IL1, IL2, IL3, I0) * Voltage (U1, U2, U3, U12, U23, U31, U0) and frequency (f) * Frequency (f) * Power (P, Q, S, pf) and Energy (E+, E-, Eq+, Eq-) * Current transformer supervision * Voltage transformer supervision (60) * Switching device status monitoring * Trip circuit supervision * Event recorder * Disturbance recorder     Hardware   * Standard * CPU module (MM/ST + RJ-45) * Power supply module (PS + fault relay + 2 trips) * Current measurement module (2 instances) * Voltage measurement module * Number of empty slots: 5 * Options * 6 digital inputs (1x6) + 5 digital outputs * 8 digital inputs (1x8) * 12 digital inputs (3x4) * 16 digital inputs (2x8) * 9 digital inputs (3x3) with IRIG-B (BNC) * 8 digital outputs (1x8) * 12 digital outputs (4x3) * 16 digital outputs (2x8) * Trip module (4 outputs) * 4-channel RTD module * 4-channel analogue input module (2-wire)     Communication   * Communication inputs * RJ-45 100 Mbps Ethernet + MM/ST fiber optic Ethernet * 2 x ST/MM redundant fiber optic Ethernet (optional) * ST/MM fiber optic Ethernet and RS-485 (optional) * 2 x LC/MM (optional) * PRP/HSR (optional) * Communication protocols * IEC 60870-5-101/104/103 * Modbus/RTU and Modbus/TCP * DNP3.0 * IEC 61850 (optional)     Software   * Advanced "CyberProtect" cyber security feature (optional)        Download Catalogues & Brochures   *      Instruction manuals   *  *      Resources   *      Software manuals   *           Related products     The AQ-G215 generator protection device is well-suited for machines that require complete generator protections. AQ-G215 can     The AQ-G257 generator protection device is well-suited for large machines that require complete generator protection and     Synchronous machine control and protection in one package! The Generator and Motor Commander is a new  \* |
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Arcteq Relays Ltd
Kvartsikatu 2 A 1
65300 Vaasa, Finland
tel: +358 10 3221 370
Arcteq is a pioneer in arc flash protection, and we are known for making the most accurate protection devices in the world.
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Business ID: 2342569-3
tel: +358 10 3221 370
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