Arcteq AQ-101S User manual

AQ-101S
Arc flash protection unit
Instruction manual

Table of contents
1 Document inf1 Document informaormationtion .................................................................................................................................................................................................................................... 55
2 A2 Abbrbbreeviaviationstions .............................................................................................................................................................................................................................................................. 66
3 General3 General................................................................................................................................................................................................................................................................................ 77
3.1 Unit features .......................................................................................................................... 7
3.2 Dimensions and installation.................................................................................................... 8
3.3 Simpli\ed block diagram ........................................................................................................ 9
3.4 Wiring.................................................................................................................................. 11
4 Opera4 Operation and con\gtion and con\guraurationtion .............................................................................................................................................................................................................. 1212
4.1 LED indicator functions........................................................................................................ 12
4.2 LED operations guide .......................................................................................................... 12
4.3 Push button (SET) ............................................................................................................... 13
4.3.1 System setup (auto-con\guration) ............................................................................. 13
4.3.2 Reset......................................................................................................................... 14
4.3.3 Input connection check ............................................................................................. 14
4.4 DIP switch settings .............................................................................................................. 14
4.4.1 Scheme selection ...................................................................................................... 15
4.4.2 Available logic schemes............................................................................................. 15
4.5 Non-volatile memory............................................................................................................ 22
5 Ar5 Arc sensorsc sensors................................................................................................................................................................................................................................................................ 2323
5.1 Arc light point sensor AQ-01................................................................................................ 23
5.2 Arc light and pressure point sensor AQ-02........................................................................... 24
5.3 Sensor—unit dependencies ................................................................................................. 24
5.4 Connecting sensors............................................................................................................. 25
6 S6 Syyststem self-superem self-supervisionvision............................................................................................................................................................................................................................ 2626
7 Applic7 Applicaation examplestion examples .................................................................................................................................................................................................................................. 2727
7.1 Double busbar application with overcurrent and arc light conditions (LV and MV).................27
7.2 Circuit breaker failure protection .......................................................................................... 28
8 Connections8 Connections.............................................................................................................................................................................................................................................................. 2929
8.1 Outputs ............................................................................................................................... 29
8.1.1 Trip relays.................................................................................................................. 29
8.1.2 inary outputs ........................................................................................................... 30
8.1.3 System failure relay.................................................................................................... 30
8.2 Inputs .................................................................................................................................. 30
8.2.1 Arc sensor channels.................................................................................................. 30
8.2.2 inary inputs ............................................................................................................. 30
8.3 Auxiliary voltage................................................................................................................... 30
9 T9 Testingesting .............................................................................................................................................................................................................................................................................. 3131
9.1 Testing the light-only mode .................................................................................................. 31
9.2 Testing the light and current mode ....................................................................................... 31
9.3 Testing the C FP function.................................................................................................... 32
9.4 Testing the unit operation time ............................................................................................. 32
9.5 Test plan example ................................................................................................................ 32
10 T10 Trroubleshoooubleshootingting................................................................................................................................................................................................................................................ 3434
11 T11 Technicechnical daal datata.................................................................................................................................................................................................................................................... 3535
11.1 Mounting and installation ................................................................................................... 35
11.2 Operating times ................................................................................................................. 35
11.3 Auxiliary voltage................................................................................................................. 35
11.4 inary inputs...................................................................................................................... 35
11.5 Trip relays .......................................................................................................................... 36
11.6 inary output(s) ................................................................................................................. 36
11.7 System failure relay............................................................................................................ 36
11.8 Sensors ............................................................................................................................. 37
11.9 Disturbance tests............................................................................................................... 37
11.10 Voltage tests.................................................................................................................... 38
11.11 Mechanical tests.............................................................................................................. 38
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11.12 Environmental conditions ................................................................................................. 38
11.13 Casing............................................................................................................................. 38
12 Or12 Ordering infdering informaormationtion ................................................................................................................................................................................................................................ 3939
13 Contact and r13 Contact and reeffererence infence informaormationtion........................................................................................................................................................................................ 4040
AAQQ-101S-101S
Instruction manual
Version: 2.01
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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.
AAQQ-101S-101S
Instruction manual
Version: 2.01
© Arcteq Relays Ltd
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Copyright
Copyright © Arcteq Relays Ltd. 2021. All rights reserved.
AAQQ-101S-101S
Instruction manual
Version: 2.01
4© Arcteq Relays Ltd
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1 Document information
Table. 1 - 1. History of Revision 1.
RReevisionvision 1.001.00
Date April 2012
Changes - The \rst revision of the manual.
RReevisionvision 1.011.01
Date July 2012
Changes
- Scheme select DIP switch settings chapter updated.
- System self-supervision chapter revised.
- Ordering code for AQ-101S revised.
- Point sensor max. wiring length updated to up to 200 meters.
RReevisionvision 1.021.02
Date March 2014
Changes - Scheme 6, 7, 9, 10, 11 internal logic segments added.
Table. 1 - 2. History of Revision 2.
RReevisionvision 2.002.00
Date October 2020
Changes
- Content completely rewritten to improve grammar and readibility.
- The "Available logic schemes" chapter updated.
- The AQ-02 point sensor chapter added to the "Arc sensors" chapter, and AQ-02's technical
data added to the "Technical data" chapter.
- The sensor–unit type dependency list updated.
- The "Connecting sensors" chapter added.
- All technical data checked and updated where necessary.
- Ordering information updated.
- Images updated where necessary.
RReevisionvision 2.012.01
Date November 2021
Changes
- Cut-out installation image added.
- Dimension measurements updated in images and technical data.
- Wiring diagram, simpli\ed block diagram, DIP switch diagram & application image updated.
- Push button image added.
- Connections image updated.
- The test plan example updated.
- All table layouts uni\ed in "Technical data".
- The IP classi\cation of point sensors updated.
- The AWG value updated.
- "Disturbance tests" table reformatted.
- Order code images updated.
- The number for Arcteq's technical support added to the reference information.
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Instruction manual
Version: 2.01
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2 Abbreviations
I – binary input
O – binary output
C – circuit breaker
C FP – circuit breaker failure protection
CT – current transformer
EPROM – erasable, programmable read-only memory
HSO – high-speed output
LED – light emitting diode
LV – low-voltage
MV – medium-voltage
NC – normally closed
NO – normally open
PC – printed circuit board
QD – quenching device
RF – radio frequency
Rx – receiver
SAS – standard arc scheme
SF – system failure
Tx – transceiver
μP - microprocessor
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3 General
The AQ-101S point sensor device is a sophisticated microprocessor-based arc flash protection unit
that includes complete self-supervision. The device is designed to minimize the damage caused by an
arcing fault (arc flash) by tripping the circuit breaker which supplies current to the fault. The complete
system self-supervision functionality of AQ-101S provides the highest level of dependability as
it continuously monitors all internal system functions as well as all external connections.
The AQ-101S device is designed according to the latest protection relay standards and is therefore
suitable for installations in rough environments. These include utilities and power plants (both traditional
and renewable), various heavy industry applications (off-shore, marine, oil, gas, mining, steel, etc.) as
well as commercial and institutional electrical systems. AQ-101S is suitable for MV and LV switchgears
as well as for motor control center applications in both new and retro\tted installations.
3.1 Unit features
AQ-101S is a multipurpose arc flash protection unit and it can be applied to a variety of applications
that require a large amount of data communication. It can be used on its own as a stand-alone unit, or
it can be a part of a more complex arc protection system through a binary bus.
The following list presents the main features of the unit:
• 92…265 V AC/DC auxiliary power supply oror 18…72 V DC auxiliary power supply (optional)
• four (4) arc point sensor channels
• six (6) binary inputs with nominal operation voltage of 24, 110, or 220 V DC
• two (2) normally open trip relay outputs
• one (1) normally open trip relay output oror one (1) normally closed trip relay output (electronic
lock-out)
• three (3) binary output (24 V DC)
• one (1) system failure output
• seventeen (17) indication LEDs
• one (1) push button.
Figure. 3.1 - 1. Arc protection unit AQ-101S.
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3.2 Dimensions and installation
AQ-101S can be either door-mounted or panel-mounted in a standard 19 inch rack. The unit's
dimensions (without cards) are as follows:
• Height: 157 mm (6.18 in)
• Width: 50 mm (1.97 in)
• Depth: 160 mm (6.30 in).
The \gure below presents the dimension of the unit visually. It also shows the dimensions of the cut-out
(bottom-left) required when mounting the unit on a panel.
Figure. 3.2 - 2. Dimensions of the device.
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The following image illustrates how a unit is installed into a cut-out. Please note that as AQ-101S
is narrower than the unit in the image, it is connected to the cut-out panel by a single screw on both the
top and the bottom of the front panel instead of the two depicted below.
Figure. 3.2 - 3. Installing a unit into a cut-out.
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Figure. 3.3 - 4. Simpli\ed block diagram of AQ-101S.
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3.3 Simpli>ed block diagram
The \gure below presents the main components of the AQ-101S unit.

NONOTE!TE!
Please note that the latching (or non-latching) of trip relays T1 and T2 is determined with the
DIP switch (SW1:6). The trip relay T3 is always latched.
The binary output O1 is always non-latched!
3.4 Wiring
Figure. 3.4 - 5. Wiring diagram for AQ-101S.
BO3
Latch / Non-latch
L> / L> + I>
100 ms / 150 ms
S1: L> / L> + I>
8
7
6
5
4
3
2
1
ON OFF
X2
11
10
9
8
7
6
5
4
3
2
1
Station battery
+
_
CB1
AQ-101S
+
-
9
8T2
7
6T3
S1
Scheme
selection
CB3
X1
BI3
_
+
BI4
_
+
BI5
_
+
BI6
_
+
BO1
BO2
S2
S3
S4
CB2
2
1Uaux
5
4
3SF
11
10 T1
13
12 BI2
_
+
15
14 BI1
_
+
9
8
7
6
2
1
5
4
3
11
10
12
15
14
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Instruction manual
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4 Operation and con>guration
4.1 LED indicator functions
The AQ-101S unit has seventeen (17) indication LEDs. Apart from the "Power" and "Error" LEDs, the
user can write their own identi\cations for each of the remaining LEDs on the text insert located in the
transparent pocket next to the LEDs. The LEDs are on the unit's front panel to allow for a clear view
without a separate need to open doors.
When the unit is powered up, it performs an LED test. All LEDs turn on for two (2) seconds and then
turn off; only the blue "Power" LED stays on.
When the unit operates normally, only the blue "Power" LED is lit.
The LEDs of inactive sensors are off. If an arc sensor is activated for longer than 1.5 ms, its
corresponding LED turns on. The activation function of the sensor LEDs is latched when the LED's light
is not blinking.
If there is a loose sensor wire or if the self-supervision function detects a con\guration mismatch (that
is, a new sensor has been attached but the auto-con\guration system setup has not been run), the
corresponding LED starts flashing and the "Error" LED activates.
The binary I/O LEDs indicate the status of the input and output lines. If any of the lines become active
for longer than 1.5 ms, the corresponding LED turns on (that is, they become latched). This also
happens when a trip situation occurs. The trip outputs are controlled with DIP switch settings. All
activation and trip indication LEDs are latched, even if the DIP switch settings are in the non-latched
mode.
All LED indications are stored in the non-volatile memory (EPROM) to help identify the necessary trip
information if auxiliary power is lost. When the unit is re-powered after a power supply loss, the front
panel shows the status of all LEDs.
You can clear the LEDs by pushing the SETSET button.
4.2 LED operations guide
The table below describes the function of each indicator LED in detail.
Table. 4.2 - 3. LED operations of AQ-101S.
LED nameLED name
((colorcolor)) LigLight offht off StSteadeady ligy lightht linklinking liging lightht AAction if abnormalction if abnormal
POWER
(blue)
The auxiliary power
supply is disconnected.
The auxiliary power
supply is connected.
(N/A) Check the power supply.
ERROR
(red) The system is healthy. A system failure has occured.
A con\guration mismatch
has been detected.
Protection is partially
operational.
Verify the system
condition (see the
"System self-supervision"
and "Troubleshooting"
chapters)..
T1–T3
(red) Normal status. The trip relay has activated.
(N/A)
Check what caused the
trip, clear the fault and
reset the indicator LEDs
with the push button.
I1– I6
(amber) Normal status. The binary input has been activated.
The binary input has a
loose connection.
Check the binary input
wiring.
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O1– O3
(amber) Normal status. The binary output has been activated.
(N/A) —
S1–S4
(amber) Normal status.
Light information has
activated the sensor
channel.
There is a loose
connection or a system
setup has not been
performed; oror, pressure
information has activated
the sensor channel (when
using an AQ-02 point
sensor).
Check the sensor wire
connection or perform a
system setup (see the
"System setup" chapter);
oror, check what activated
the sensor.
4.3 Push button (SET)
The unit contains one push button, SETSET, and it can be used for all operational functions. The push
button is used for setting up the system (also known as auto-con\guration), for resetting the indicator
LEDs and the latched output relays, as well as for checking the input connection.
Figure. 4.3 - 6. The "SET" push button on the device's front panel.
4.3.1 System setup (auto-con>guration)
After all sensors and binary lines have been connected, a system setup procedure (also known as
auto-con\guration) must be performed. The sequence is initialized by pressing the SETSET push button for
two seconds. This causes the sensor and binary LEDs to start blinking. The unit scans these inputs to
see if they are connected; when an input is detected, the corresponding LED lights up to mark that a
connection was found. All inputs that are not connected continue to blink for three more seconds.
Then, all LEDs are turned off. Additionally, the DIP switch setting are stored in the non-volatile memory
during this sequence.
All sensor inputs remain operational even when they have not been auto-con\gured. System setup is
only used for self-supervision purposes.
Please note that to recon\gure a unit with fewer connections ( I/ O or sensors) than in the previously
memorized setup, one of the DIP switches must be moved back and forth once before the system
setup procedure is carried out. After this, you must wait one minute before you begin the new auto-
con\guration sequence.
You can recon\gure a unit with more connections at any time without the wait and without having to
move one of the DIP switches.
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4.3.2 eset
All LED indications and latched trip relays can be reset by pressing the SETSET push button for
one second.
Unless the button is pressed, the latched trip relays remain active until the auxiliary power is
disconnected. All LED indications also remain active even when the auxiliary power supply is
disconnected unless the button is pressed. Please refer to the "Non-volatile memory" chapter for more
information.
4.3.3 Input connection check
After the system setup (auto-con\guration) procedure is completed, you can verify the connectivity of
all sensors and binary input channels by pressing the SETSET push button three (3) times within two
(2) seconds. The LEDs of the corresponding sensors and binary input channels start blinking while the
"Power" LED is already blinking. The LEDs blink as many times as there are connected sensors and
binary output channels from other units.
4.4 DIP switch settings
The DIP switches are used to con\gure the unit's tripping logic and other functionalities. The various
trip schemes can be programmed easily by selecting the appropriate DIP switch positions, which
allows for more flexibility when changing the settings depending on the application. However, the most
convenient way to set the unit or a more complex arc protection system is to use Standard Arc
Schemes (SAS).
Tripping can be based on arc light only, or on both arc light and current thresholds, or on other tripping
criteria (such as undervoltage, etc.). Current threshold and other tripping criteria can also be applied to
I1 to block tripping caused by natural light sources. The C FP (circuit breaker failure protection)
scheme can also be enabled with the DIP switches. The DIP switch's pins 1…4 are used for selecting
schemes, and their numbering is based on binary arithmetic.
The DIP switches are located at the back of the unit for easy access. The \gure below presents the DIP
switch numbering, and the table below that gives a detailed description of the settings.
Figure. 4.4 - 7. DIP switch diagram.
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Table. 4.4 - 4. DIP switch settings.
PPin numberin number
((namename)) FFunction selectionunction selection ON (leON (left position)ft position) OFF (OFF (rigright position)ht position)
8
(L> oror L> + I>)
The tripping criterion for the S2,
S3, S4 (sensor) and S5 (\ber)
channels.
Tripping on light only (L>).
Tripping on light and overcurrent
(L> + I>), both of which are
required to occur simultaneously
to trigger tripping.
7
(S1: L> oror L> +
I>)
The tripping criterion for the S1
sensor channel. Tripping on light only (L>).
Tripping on light and overcurrent
(L> + I>), both of which are
required to occur simultaneously
to trigger tripping.
6
(Latch oror Non-
latch)
Latching or non-latching for the
T1 and T2 trip relays. T1 and T2 operate as latched. T1 and T2 operate as non- latched.
5
(100 ms oror 150
ms)
The setting for the C FP time. The C FP time is set to 100 ms. The C FP time is set to 150 ms.
4
(scheme select) Scheme selection.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
3
(scheme select) Scheme selection.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
2
(scheme select) Scheme selection.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
1
(scheme select) Scheme selection.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
Please refer to the "Scheme
selection" and "Application
examples" chapters.
NONOTE!TE!
The T3 trip relays is always latched. The O1 binary output function is always non-latched.
4.4.1 Scheme selection
This chapter describes the schemes that are available to this unit. The schemes are con\gured using
the DIP switches numbered 1…4 ("Scheme selection"). Most of the schemes are designed for double
busbar arc protection. For detailed instructions on each of the available schemes please refer to the
AQ-SAS™ booklet (can be found at arcteq.\/downloads/). Please note that there are four booklets: two
are for schemes based on IEC standards (MV and LV versions) and the other two for schemes based
on ANSI standards (MV and LV versions).
4.4.2 Available logic schemes
The schemes described below are the most important ones for this unit. However, additional schemes
are also available; please contact your nearest Arcteq representative for more information on
those schemes.
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SS:1
The logic scheme SS:1 is used for selective arc protection solutions. The point sensor S1 monitors the
outgoing feeder cable compartment. The point sensor S2 monitors the corresponding feeder breaker
compartment. The point sensors S3 and S4 monitor the busbar compartment. The trip contact T1 is
responsible for tripping the circuit breaker of the outgoing feeder. The binary input I3 receives
overcurrent information from the incoming feeder of a connected AQ-110P unit. The binary output O1
sends light information to the incoming feeder of a connected AQ-110P unit when AQ-101S detects
any arc fault.
You can \nd a more detailed description of this scheme in the AQ-SASTM booklet.
Figure. 4.4.2 - 8. The logic diagram of SS:1.
Figure. 4.4.2 - 9. The DIP switch settings of SS:1.
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Figure. 4.4.2 - 10. The trip logic matrix of SS:1.
SS:2
The logic scheme SS:2 is used for selective arc protection solutions. The point sensor S2 monitors the
incoming feeder breaker compartment. The point sensor S3 monitors the reserve busbar, while the
point sensor S4 monitors the main busbar compartment. The trip contact T1 is responsible for tripping
the section circuit breaker. The trip contact T2 is responsible for tripping the coupler circuit breaker.
The binary inputs I1 and I2 are responsible for recognizing the position of the incoming circuit
breaker. The binary input I3 receives overcurrent information from the incoming feeder of a connected
AQ-110P unit. The binary inputs I4, I5 and I6 are used for sending light information from the
different locations of the busbar compartment. The binary outputs O1, O2 and O3 send arc fault
information to the incoming feeder units and the intermediate units.
You can \nd a more detailed description of this scheme in the AQ-SASTM booklet.
Figure. 4.4.2 - 11. The logic diagram of SS:2.
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Figure. 4.4.2 - 12. The DIP switch settings for SS:2.
Figure. 4.4.2 - 13. The trip logic matric of SS:2.
SS:3
The logic scheme SS:3 is very similar to the previous scheme (SS:2). The point sensor S2 monitors the
incoming feeder compartment. The point sensor S3 monitors the reserve busbar, while the point
sensor S4 monitors the main busbar compartment. The trip contact T1 is responsible for tripping the
section circuit breaker. The trip contact T2 is responsible for tripping the coupler circuit breaker. The
binary inputs I1 and I2 are responsible for recognizing the position of the incoming circuit breaker.
The binary input I3 receives overcurrent information from the incoming feeder of a connected
AQ-110P unit. The binary inputs I4, I5 and I6 are used for sending light information from the
different locations of the busbar compartment. The binary outputs O1, O2 and O3 send arc fault
information to the incoming feeder units and the intermediate units.
You can \nd a more detailed description of this scheme in the AQ-SASTM booklet.
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