Arcteq AQ 200 Series User manual

AQ-T216
Transformer protection IED
Instruction manual
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Table of contents
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1. Manual revision notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1. Version 2 revision notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2. Version 1 revision notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. IED user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1. Panel structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1.1. AQ 200 series local panel structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2. Mimic and main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.1. Basic conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.2. Navigation in main conguration menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3. General menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4. Protection menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.5. Control menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.6. Communication menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.7. Measurement menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.8. Monitoring menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.9. User level password conguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1. Functions included in AQ-T216 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2. Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.1. Current measurement and scaling in differential application . . . . . . . . . . . . . . . . . .
5.2.2. Frequency tracking and scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3. General menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4. Protection functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.1. General properties of a protection function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.2. Non-directional overcurrent I> (50/51) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.3. Non-directional earth fault I0> (50N/51N) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.4. Current unbalance I2> (46) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.5. Harmonic overcurrent Ih> (50H/51H/68H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.6. Circuit breaker failure protection CBFP (50BF) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.7. Restricted earth fault / cable end differential (REF) I0D> (87N) . . . . . . . . . . . . . . .
5.4.8. Transformer status monitoring (TRF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4.9. Transformer thermal overload protection TT> (49TR) . . . . . . . . . . . . . . . . . . . . . .
5.4.10. Transformer differential Idb> Idi> I0dhv> I0dLv> (87T,87N) . . . . . . . . . . . . . . . . .
5.4.11. Resistance temperature detectors (Modbus IO) (RTD) (49T) . . . . . . . . . . . . . . .
5.4.12. Arc fault protection IArc>/I0Arc>(50Arc/50NArc) . . . . . . . . . . . . . . . . . . . . . . . .
5.4.13. Programmable stage PGx >/< (99) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5. Control functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5.1. Setting group selection (SGS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5.2. Object control and monitoring (OBJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5.3. Indicator object monitoring (CIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5.4. mA Output control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5.5. Programmable control switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6. Monitoring functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6.1. Current transformer supervision (CTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6.2. Disturbance recorder (DR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6.3. Measurement recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6.4. Circuit breaker wear-monitor (CBW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6.5. Total harmonic distortion monitor (THD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.6.6. Measurement value recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. System integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1. Communication protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.1. NTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.2. ModbusTCP and ModbusRTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.3. ModbusIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AQ-T216
Instruction manual
Version: 2.00
1 © Arcteq Relays Ltd

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6.1.4. IEC 61850 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.5. GOOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.6. IEC 103 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.7. DNP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.8. IEC 101/104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.9. SPA protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2. General IO analog fault registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3. Real time measurements to communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Applications and connection examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1. Connections AQ-T216 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2. Example transformer application connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3. Trip circuit supervision (95) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Construction and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1. Construction and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2. CPU, IO and Power supply module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3. Current measurement module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.4. Binary input module (DI8) (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5. Binary output module (DO5) (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.6. Arc protection module (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.7. RTD & mA input module (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.8. Serial RS232 communication module (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.9. LC100 Ethernet communication module (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.10. mAout & mAinput module (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.11. Installation dimensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1. Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.1. Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.1.1. Current measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.1.2. Frequency measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.2. CPU & Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.2.1. Auxiliary voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.2.2. CPU communication ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.2.3. CPU Binary inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.2.4. CPU Binary outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.3. Option cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.3.1. Binaryinput module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.3.2. Binary output module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.3.3. Arc protection module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.3.4. mAout & mAin module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.3.5. RTD & mA input module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.3.6. RS232 & Serial ber communication module . . . . . . . . . . . . . . . . . . . . . .
9.1.3.7. Double LC100Mb Ethernet module(Redundant) . . . . . . . . . . . . . . . . . . .
9.1.4. Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2. Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1. Protection functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1.1. Non-directional overcurrent (50/51) I> . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1.2. Non-directional earth fault (50N/51N) I0> . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1.3. Current unbalance (46/46R/46L) I2> . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1.4. Harmonic overcurrent (50H/51H, 68) Ih> . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1.5. Circuit breaker failure protection (50BF/52BF) CBFP . . . . . . . . . . . . . . .
9.2.1.6. Restricted earth fault / Cable end differential (87N) Iod> . . . . . . . . . . . . .
9.2.1.7. Transformer thermal overload (49T) T> . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1.8. Resistance temperature detector alarm (49RTD) T> . . . . . . . . . . . . . . . .
9.2.1.9. Transformer monitoring function (TRF) . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.1.10. Transformer differential (87T,87R) Idb>, Idi>,HV Iod>, LV Iod> . . . . . . .
9.2.1.11. Arc protection (50ARC/50NARC) IARC> I0ARC> (option) . . . . . . . . . . .
9.2.2. Control functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.2.1. Setting group selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.2.2. Object control (OBJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Instruction manual
Version: 2.00
© Arcteq Relays Ltd 2

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9.2.3. Monitoring functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.3.1. Current transformer supervision (CTS) . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.3.2. Disturbance recorder (DR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.3.3. Circuit breaker wear monitor (CBW) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2.3.4. Total harmonic distortion (THD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3. Tests and environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10. Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11. Contact and reference information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AQ-T216
Instruction manual
Version: 2.00
3 © Arcteq Relays Ltd

Disclaimer
Please read these instructions carefully before using the equipment or taking any other actions with
respect to the equipment. Only trained and qualied persons are allowed to perform installation,
operation, service or maintenance of the equipment. Such qualied persons have the responsibility to
take all appropriate measures, including e.g. use of authentication, encryption, anti-virus programs,
safe switching programs etc. necessary to ensure a safe and secure environment and usability of the
equipment. The warranty granted to the equipment remains in force only provided that the instructions
contained in this document have been strictly complied with.
Nothing contained in this document shall increase the liability or extend the warranty obligations of the
manufacturer Arcteq Relays Ltd. The manufacturer expressly disclaims any and all liability for any
damages and/or losses caused due to a failure to comply with the instructions contained herein or
caused by persons who do not full the aforementioned requirements. Furthermore, the manufacturer
shall not be liable for possible errors in this document. 
Please note that you must always comply with applicable local legislation and regulations. The
manufacturer gives no warranties that the content of this document is in all respects in line with local
laws and regulations and assumes no liability for such possible deviations.
You are advised to notify the manufacturer in case you become aware of any errors in this document or
of defects in the equipment.
The manufacturer reserves the right to update or amend this document at any time.
AQ-T216
Instruction manual
Version: 2.00
© Arcteq Relays Ltd 4

Copyright
Copyright © Arcteq Relays Ltd. 2018. All rights reserved.
AQ-T216
Instruction manual
Version: 2.00
5 © Arcteq Relays Ltd

1. Manual revision notes
1.1. Version 2 revision notes
Revision 2.00
Date 6.6.2019
Changes
- New more consistent look.
- Improved descriptions generally in many chapters.
- Improved readability of a lot of drawings and images.
- Updated protections included included in every IED manual.
- Every protection IED type now has connection drawing, application example drawingwith function block diagram
and application example with wiring.
- Added current measurement side selection description to functions with such feature.
- Added General-menu description.
1.2. Version 1 revision notes
Revision 1.00
Date 18.11.2014
Changes - The rst revision for AQ-T215 IED.
Revision 1.01
Date 26.1.2015
Changes
- Added double LC 100Mb Ethernet module and RS232 & Serial ber module hardware descriptions
- Added system integration text: SPA
- Replaced Positive- and negative sequence overvoltage with sequence voltage function.
- Order code updated
Revision 1.02
Date 30.5.2015
Changes - Added PCB and Terminal options to order code table.
Revision 1.03
Date 30.8.2016
Changes - Added password set up guide (previously only in AQtivate user guide)
Revision 1.04
Date 16.2.2017
Changes
- Added Programmable Control Switch and Indicator Object descriptions
- Order code updated
- Voltage regulator function description revised. Added curve scaling example.
- Programmable stage description added
Revision 1.05
Date 14.8.2018
Changes - Added mA output option card description and ordercode
AQ-T216
Instruction manual
Version: 2.00
© Arcteq Relays Ltd 6

2. Abbreviations
CB – Circuit breaker
CBFP – Circuit breaker failure protection
CT – Current transformer
CPU – Central processing unit
EMC – Electromagnetic compatibility
HMI – Human machine interface
HW – Hardware
IED – Intelligent electronic device
IO – Input output 
LED – Light emitting diode
LV – Low voltage
MV – Medium voltage
NC – Normally closed
NO – Normally open
RMS – Root mean square
SF – System failure
TMS – Time multiplier setting
TRMS – True root mean square
VAC – Voltage alternating current
VDC – Voltage direct current
SW – Software
uP - Microprocessor
AQ-T216
Instruction manual
Version: 2.00
7 © Arcteq Relays Ltd

3. General
AQ-T216 Transformer Protection IED is a member of the AQ-200 product line. The AQ-200 protection
product line in respect of hardware and software is a modular concept. The hardware modules are
assembled and congured according to the application IO requirements and the software determines
the available functions. This manual describes the specic application of the AQ-T216 Transformer
Protection IED. For other AQ-200 series products please consult corresponding device manuals.
AQ-T216
Instruction manual
Version: 2.00
© Arcteq Relays Ltd 8

4. IED user interface
4.1. Panel structure
AQ 200 series IED user interface section is divided into hardware- and software user interface
sections. Software interface is divided into local panel conguration and programming by using
AQtivate 200 freeware software suite.
4.1.1. AQ 200 series local panel structure
AQ 200 series IED have multiple LEDs, control buttons and local RJ-45 Ethernet port for conguration
on front as a default. On rear each unit is equipped with RS-485 serial interface and RJ-45 Ethernet
interface options as a standard. See list below.
Figure. 4.1.1. - 1. Local panel structure.
4 default LEDs: Power, Error, Start (congurable) and Trip (congurable).
16 freely congurable LEDs with programmable legend texts.
3 object control buttons: Choose the controllable object with Ctrl –button, control breaker with
0- and I push buttons.
L/R push button for switching between local and remote control modes.
7 Navigation buttons for IED local programming and a button for password activation.
RJ-45 Ethernet port for IED conguration.
Power LED is lit (green) when unit is powered on. Error LED is lit (red) when relay has an internal error
that affects the operation of the unit. This can be either a hardware or software error. Start LED
(yellow) and Trip LED (red) activation is user settable. Activation and color (green/yellow) of the 16
LEDs on the right side of the display are user settable.
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Instruction manual
Version: 2.00
9 © Arcteq Relays Ltd

4.2. Mimic and main menu
4.2.1. Basic conguration
IED user interface is divided into 5 quick displays. The displays are Events, Favorites, Mimic, LEDs and
Clock. Default quick display is the mimic view and it is possible to glance through these menus by
pressing arrows left and right. Please note that the available quick display carousel views might be
different if user has changed it with AQtivate setting tools Carousel Designer. Home button transfers
the user between quick display carousel and main conguration menus. Main conguration menus are
General, Protection, Control, Communication, Measurements and Monitoring. Available menus vary
depending on IED type. You can choose the main menu by using the four arrow keys and press enter.
Figure. 4.2.1. - 2. Basic navigation.
Cancel/Back keytakes you one step back or holding it down for 3 seconds takes you back to
general –menu.Cancel key is also used for resettinguser alarm LEDs.
Padlock buttontakes user to password menu where it is possible to enter different user levels
(user, operator, congurator and super user).
4.2.2. Navigation in main conguration menus
All the settings in this IED type have been divided into main conguration menus. Main conguration
menus are presented below. Available menus may vary according to IED type.
Figure. 4.2.2. - 3. Main conguration menus.
AQ-T216
Instruction manual
Version: 2.00
© Arcteq Relays Ltd 10

4.3. General menu
Device info
Figure. 4.3. - 4. Device Info sub- menu.
Set name and location of the device.
Serial number and SW version of the IED.
Hardware conguration (order code).
Source for time synchronization, Internal or External (internal as default).
Enable stage forcing (disabled / enabled). When forcing is disabled after using every forced
output will restore. Forcing is done individually in info menu of each stage.
Language selection, all available languages here (English as default).
Clear devices events.
LCD contrast level and setting 0…255 (120 as default).
Reset latched signals
Protection/Control/Monitor prole: Displays the status of enabled functions.
4.4. Protection menu
Protection menuincludes Stage activation sub-menu and sub-menus for different protection functions
like Overcurrent, Earthfault, Seq. and balance and Supporting. Valid protection functions vary
according IED type.
AQ-T216
Instruction manual
Version: 2.00
11 © Arcteq Relays Ltd

Figure. 4.4. - 5. Protection menu view. Protection stages vary according IED type.
STAGE ACTIVATION
Figure. 4.4. - 6. Stage activation sub-menu.
Activation of different protection stages is done in Stage activation –sub menu. Each protection
stage and supporting function is disabled as standard.
Activated menus will appear below the stage specic sub-menu for example I> appears below
Current –module, U< appears below Voltage-module etc.
EXAMPLE PROTECTION STAGE
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Instruction manual
Version: 2.00
© Arcteq Relays Ltd 12

Figure. 4.4. - 7. Stage navigation and modication.
Each protection stage and supportive function has ve stage menus Info, Settings, Registers, IO and
Events.
AQ-T216
Instruction manual
Version: 2.00
13 © Arcteq Relays Ltd

Figure. 4.4. - 8. Info menu indicates all the details listed below certain protection stage or function.
Function is activated and disabled in Stage activation menu. It is possible to disable function in
Info menu as well.
Function condition indicates whether the stages condition is Normal, Start or Trip.
Measured amplitude can be Peak-to-peak, TRMS or RMS. As a default it is set as RMS.
Under Characteristic graphs-title you can open graphs related to the protection function.
Info view has calculator for function starts, trips and blockings. It is possible to clear calculators
by choosing Clear statistics and Clear.
Measurements are visible in Info menu.
Active setting group and its settings are all visible in Info menu.
AQ-T216
Instruction manual
Version: 2.00
© Arcteq Relays Ltd 14

Figure. 4.4. - 9. All group specic settings are done individually in Settings menu.
Stage settings vary according different protection functions. With factory settings only one group of
eight is activated. To enable more groups go to Control menu and select Setting Groups.
Figure. 4.4. - 10. Stage information is divided into two sections.
AQ-T216
Instruction manual
Version: 2.00
15 © Arcteq Relays Ltd

Specic fault data of IEDs is stored in operation log under the register. Each of these 12 logs includes
pre-fault current, fault current, time stamp and active group during the triggering. Operation log can be
cleared by choosing Clear registers → Clear .
Events generated by the specic stage can be checked by going to Stage event register. General
events cannot be cleared.
Figure. 4.4. - 11. Stage information is divided into two sections.
Starting and tripping signals of protection stages are connected to physical outputs in Direct Output
Control menu. It is possible to connect to output relay or to start- trip- or user congurable LED. In
case when stage is internally blocked (DI or other signal) it is possible to congure an output to indicate
that stage is blocked. Connection to outputs can be either latched |x| or non-latched x.
Stage blocking is done in Blocking Input Control menu. Blocking can be done by using digital inputs,
logical inputs or outputs, stage start- trip- or blocked information or by using object status information.
AQ-T216
Instruction manual
Version: 2.00
© Arcteq Relays Ltd 16

Figure. 4.4. - 12. Protection stage related events are masked on and off individually under Events → Event mask .
Events are masked off as default. It is possible to activate desired events by masking them |x|. Only
masked events appear to event list. Events cannot be cleared.
Stage activation
Figure. 4.4. - 13. Stage activation sub-menu.
Activation of different protection stages is done in Stage activation –sub menu. Each protection
stage and supporting function is disabled as standard.
Activated menus will appear below the stage specic sub-menu for example I> appears below
Current –module, U< appears below Voltage-module etc.
AQ-T216
Instruction manual
Version: 2.00
17 © Arcteq Relays Ltd

Example protection stage
Figure. 4.4. - 14. Stage navigation and modication.
Each protection stage and supportive function has ve stage menus Info, Settings, Registers, IO and
Events.
AQ-T216
Instruction manual
Version: 2.00
© Arcteq Relays Ltd 18

Info-menu
Figure. 4.4. - 15. Info menu indicates all the details listed below certain protection stage or function.
Function is activated and disabled in Stage activation menu. It is possible to disable function in
Info menu as well.
Function condition indicates whether the stages condition is Normal, Start or Trip.
Measured amplitude can be Peak-to-peak, TRMS or RMS. As a default it is set as RMS.
Available measured amplitudes vary.
Under Characteristic graphs -title you can open graphs related to the protection function.
Info view has calculator for function starts, trips and blockings. It is possible to clear calculators
by choosing Clear statistics and Clear.
Measurements are visible in Info menu.
Active setting group and its settings are all visible in Info menu. Other setting groups can be set
in the Settings -menu.
AQ-T216
Instruction manual
Version: 2.00
19 © Arcteq Relays Ltd