AQ-M257x Motor protection device


AQ-M257x Motor protection device AQ-M257x Motor protection device Ask for an offer Home Motor protection & control AQ-M257x Motor protection device Description The AQ-M257x motor protection device offers a modular protection and control solution for larger and more important motors that require differential protection. You can add up to nine (9) I/O or communication cards into the device for extensive monitoring and control applications. You can also connect up to sixteen (16) RTD signals for thermal alarming and tripping. AQ-M257x communicates using various protocols, including the IEC 61850 substation communication standard. The AQ-M257x motor protection device has three software options: the “A” variant (AQ-M257A) is designed for asynchronous machines; the “B” variant (AQ-M257B) is designed for synchronous machines; and the “C” variant (AQ-M257C) is designed for synchronous machines that also require excitation control. For more details on the software options, please see the order code below. Highlights: Differential protection. A large I/O capacity. Five (5) thermal models (time constant accurate). Soft start protection beginning from 6 Hz. Wye-delta started motor supervision. Two-speed motor protection. Optional power and energy class 0.2S. Asynchronous and synchronous motors. Technical data Non-directional overcurrent (I>; 50/51) - 4 stages (INST, DT or IDMT) Non-directional earth fault (I0>; 50N/51N) - 4 stages (INST, DT or IDMT) Directional overcurrent (Idir>; 67) - 4 stages (INST, DT or IDMT) Directional earth fault (I0dir>; 67N/32N) - 4 stages (INST, DT or IDMT) Negative sequence overcurrent/ Phase current reversal/ Current unbalance (I2>; 46/46R/46L) - 4 stages (INST, DT or IDMT) Harmonic overcurrent (Ih>; 50H/51H/68H) - 4 stages (INST, DT or IDMT) Circuit breaker failure protection (CBFP; 50BF/52BF) High-impedance or low-impedance restricted earth fault/ Cable end differential (I0d>; 87N) Overvoltage (U>; 59) - 4 stages (INST, DT or IDMT) Undervoltage (U<; 27) - 4 stages (INST, DT or IDMT) Neutral overvoltage (U0>; 59N) - 4 stages (INST, DT or IDMT) Sequence voltage (U1/U2>/<; 47/27P/59PN) - 4 stages (INST, DT or IDMT) Overfrequency and underfrequency (f>/<; 81O/81U) - 8 stages (INST or DT) Rate-of-change of frequency (df/dt>/<; 81R) - 8 stages (INST, DT or IDMT) Power protection (P, Q, S>/<; 32) - 4 stages (DT) Resistance temperature detectors (RTD) Machine thermal overload (TM>; 49M) Motor status monitoring Generator/transformer differential (Idx>; 87T/87M/87G) Motor start/ Locked rotor monitoring (Ist>; 48/14) Frequent start (N>; 66) Non-directional undercurrent (I<; 37) Mechanical jam (Im>; 51M) Voltage memory Programmable stage (PGx>/<; 99) Arc protection (IArc>/I0Arc>; 50Arc/50NArc) (optional) Number of objects to control and monitor: 10 Number of indicators to monitor: 10 Number of setting groups: 8 Phase, sequence and residual currents (IL1, IL2, IL3, I01, I02) Phase, sequence and residual voltages (UL1, UL2, UL3, U12, U23, U31, U0) Frequency (f) Power (P, Q, S, pf) and Energy (E+, E-, Eq+, Eq-) Power and energy class 0.5 Power and energy class 0.2S (optional) Current transformer supervision - 2 instances Voltage transformer supervision (60) Circuit breaker wear monitoring Total harmonic distortion (current) Total harmonic distortion (voltage) Running hour counter Measurement recorder Measurement value recorder Event recorder (max. 15 000 permanent event records) Disturbance recorder (max. 100 records á 5 seconds at 3.2 kHz sampling) Current inputs: 10 Voltage inputs: 4 Digital inputs (fixed): 3 Digital outputs (fixed): 5 Number of empty slots: 9 Digital inputs: +8/16/24/32/40/48/56/64/72 (optional) Digital outputs: +5/10/15/20/25/30 (optional) Milliampere I/O module (4 mA outputs + 1 mA input) Arc protection module (4 sensors + 2 HSO + 1 BI) Communication media (see "Communication" below) External I/O modules (see "Accessories" below) Communication inputs RJ-45 100 Mbps Ethernet (front panel, fixed) RJ-45 100 Mbps Ethernet and RS-485 (rear panel, fixed) 2 x RJ-45 100 Mbps Ethernet with an IRIG-B input (optional) 2 x ST 100 Mbps Ethernet with an IRIG-B input (optional) 2 x LC 100 Mbps Ethernet (PRP/HSR) (optional) RS-232 serial fiber (PP/PG/GP/GG) (optional) Communication protocols IEC 61850 (edition 1) IEC 61850 (edition 2) IEC 60870-5-101/104 IEC 60870-5-103 Modbus/RTU and Modbus/TCP DNP3 SPA AX007 External 6-channel 2-/3-wire RTD input module (pre-configured) AX008 External 8-channel thermocouple and mA input module (pre-configured) AX013 Raising frame (120 mm) AX014 Raising frame (40 mm) AX015 Wall mounting bracket Additional material Application Drawing Device Rear Image Device and Cut-out Image Order Code Download application drawing Download device rear image Download device and cut-out dimensions Download order code Download AQ 200 Series flyer v2.01 (English) AQ 200 Series flyer v2.01 (Finnish) AQ 200 Series flyer v2.01 (Swedish) AQ 200 Series product catalogue v1.03 (English) AQtivate PRO Flyer v1.00 (English) AQtivate PRO Flyer v1.00 (Finnish) AQ-M257 Motor protection device instruction manual (v2.09, English) AQ 200 series DNP3 device profile v4.00 (English) AQ 200 series DWG connection drawings (.zip file) AQ 200 series IEC 103 interoperability list v1.00 (English) AQtivate 200 Instruction manual v2.02 (English) Related products AQ-M210 Motor protection device The AQ-M210 motor protection device offers a modular protection and control solution for small and medium-sized […] AQ-M215 Motor protection device The AQ-M215 motor protection device offers a modular protection and control solution for larger and more […] AQ-M255 Motor protection device The AQ-M255 motor protection device offers a modular protection and control solution for larger and more […] Generator and Motor Commander Synchronous machine control and protection in one package! 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Description

The AQ-M257x motor protection device offers a modular protection and control solution for larger and more important motors that require differential protection. You can add up to nine (9) I/O or communication cards into the device for extensive monitoring and control applications. You can also connect up to sixteen (16) RTD signals for thermal alarming and tripping. AQ-M257x communicates using various protocols, including the IEC 61850 substation communication standard.

The AQ-M257x motor protection device has three software options: the “A” variant (AQ-M257A) is designed for asynchronous machines; the “B” variant (AQ-M257B) is designed for synchronous machines; and the “C” variant (AQ-M257C) is designed for synchronous machines that also require excitation control. For more details on the software options, please see the order code below.

Highlights:

Differential protection.
A large I/O capacity.
Five (5) thermal models (time constant accurate).
Soft start protection beginning from 6 Hz.
Wye-delta started motor supervision.
Two-speed motor protection.
Optional power and energy class 0.2S.
Asynchronous and synchronous motors.

Technical data

Non-directional overcurrent (I>; 50/51) - 4 stages (INST, DT or IDMT)
Non-directional earth fault (I0>; 50N/51N) - 4 stages (INST, DT or IDMT)
Directional overcurrent (Idir>; 67) - 4 stages (INST, DT or IDMT)
Directional earth fault (I0dir>; 67N/32N) - 4 stages (INST, DT or IDMT)
Negative sequence overcurrent/ Phase current reversal/ Current unbalance (I2>; 46/46R/46L) - 4 stages (INST, DT or IDMT)
Harmonic overcurrent (Ih>; 50H/51H/68H) - 4 stages (INST, DT or IDMT)
Circuit breaker failure protection (CBFP; 50BF/52BF)
High-impedance or low-impedance restricted earth fault/ Cable end differential (I0d>; 87N)
Overvoltage (U>; 59) - 4 stages (INST, DT or IDMT)
Undervoltage (U<; 27) - 4 stages (INST, DT or IDMT)
Neutral overvoltage (U0>; 59N) - 4 stages (INST, DT or IDMT)
Sequence voltage (U1/U2>/<; 47/27P/59PN) - 4 stages (INST, DT or IDMT)
Overfrequency and underfrequency (f>/<; 81O/81U) - 8 stages (INST or DT)
Rate-of-change of frequency (df/dt>/<; 81R) - 8 stages (INST, DT or IDMT)
Power protection (P, Q, S>/<; 32) - 4 stages (DT)
Resistance temperature detectors (RTD)
Machine thermal overload (TM>; 49M)
Motor status monitoring
Generator/transformer differential (Idx>; 87T/87M/87G)
Motor start/ Locked rotor monitoring (Ist>; 48/14)
Frequent start (N>; 66)
Non-directional undercurrent (I<; 37)
Mechanical jam (Im>; 51M)
Voltage memory
Programmable stage (PGx>/<; 99)
Arc protection (IArc>/I0Arc>; 50Arc/50NArc) (optional)

Number of objects to control and monitor: 10
Number of indicators to monitor: 10
Number of setting groups: 8

Phase, sequence and residual currents (IL1, IL2, IL3, I01, I02)
Phase, sequence and residual voltages (UL1, UL2, UL3, U12, U23, U31, U0)
Frequency (f)
Power (P, Q, S, pf) and Energy (E+, E-, Eq+, Eq-)
Power and energy class 0.5
Power and energy class 0.2S (optional)
Current transformer supervision - 2 instances
Voltage transformer supervision (60)
Circuit breaker wear monitoring
Total harmonic distortion (current)
Total harmonic distortion (voltage)
Running hour counter
Measurement recorder
Measurement value recorder
Event recorder (max. 15 000 permanent event records)
Disturbance recorder (max. 100 records á 5 seconds at 3.2 kHz sampling)

Current inputs: 10
Voltage inputs: 4
Digital inputs (fixed): 3
Digital outputs (fixed): 5
Number of empty slots: 9
Digital inputs: +8/16/24/32/40/48/56/64/72 (optional)
Digital outputs: +5/10/15/20/25/30 (optional)
Milliampere I/O module (4 mA outputs + 1 mA input)
Arc protection module (4 sensors + 2 HSO + 1 BI)
Communication media (see "Communication" below)
External I/O modules (see "Accessories" below)

Communication inputs
RJ-45 100 Mbps Ethernet (front panel, fixed)
RJ-45 100 Mbps Ethernet and RS-485 (rear panel, fixed)
2 x RJ-45 100 Mbps Ethernet with an IRIG-B input (optional)
2 x ST 100 Mbps Ethernet with an IRIG-B input (optional)
2 x LC 100 Mbps Ethernet (PRP/HSR) (optional)
RS-232 serial fiber (PP/PG/GP/GG) (optional)
Communication protocols
IEC 61850 (edition 1)
IEC 61850 (edition 2)
IEC 60870-5-101/104
IEC 60870-5-103
Modbus/RTU and Modbus/TCP
DNP3
SPA

AX007 External 6-channel 2-/3-wire RTD input module (pre-configured)
AX008 External 8-channel thermocouple and mA input module (pre-configured)
AX013 Raising frame (120 mm)
AX014 Raising frame (40 mm)
AX015 Wall mounting bracket

Additional material

Application Drawing

An application image for AQ-M257A motor protection device, with one version drawn according to IEC standard symbols and the other according to IEEE/ANSI standard symbols.

Device Rear Image

Device and Cut-out Image

Order Code

Download application drawing Download device rear image Download device and cut-out dimensions Download order code

Download

AQ-M257 Motor protection device instruction manual (v2.09, English)

AQtivate 200 Instruction manual v2.02 (English)

Description

Technical data

Protection

Control

Measuring and monitoring

Hardware

Communication

Communication inputs

Communication protocols

Accessories

Additional material

Application Drawing

Device Rear Image

Device and Cut-out Image

Order Code

Download

Catalogues & Brochures

Instruction manuals

Resources

Software manuals

Related products

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