Arcteq AQ-110x User manual

AQ-110x
Arc sensor unit with overcurrent
Instruction manual

Table of contents
1 Document inf1 Document informaormationtion .................................................................................................................................................................................................................................... 55
2 A2 Abbrbbreeviaviationstions .............................................................................................................................................................................................................................................................. 77
3 General3 General................................................................................................................................................................................................................................................................................ 88
3.1 Unit features .......................................................................................................................... 8
3.2 Dimensions and installation.................................................................................................. 10
3.3 Simpli^ed block diagram ...................................................................................................... 11
3.4 Wiring.................................................................................................................................. 14
4 Opera4 Operation and con^gtion and con^guraurationtion .............................................................................................................................................................................................................. 1616
4.1 LED indicator functions........................................................................................................ 16
4.2 LED operations guide .......................................................................................................... 16
4.3 Push button (SET) ............................................................................................................... 17
4.3.1 System setup (auto-con^guration) ............................................................................. 18
4.3.2 Reset......................................................................................................................... 18
4.3.3 Input connection check ............................................................................................. 19
4.4 Current threshold settings.................................................................................................... 19
4.5 DIP switch settings .............................................................................................................. 20
4.5.1 Scheme selection ...................................................................................................... 22
4.5.2 Available logic schemes............................................................................................. 22
4.6 Non-volatile memory............................................................................................................ 28
5 Ar5 Arc sensorsc sensors................................................................................................................................................................................................................................................................ 3030
5.1 Arc light point sensor AQ-01................................................................................................ 30
5.2 Arc light and pressure point sensor AQ-02........................................................................... 31
5.3 Arc light ^ber optic loop sensor AQ-06 ................................................................................ 31
5.4 Arc light ^ber optic loop sensor AQ-07 ................................................................................ 31
5.5 Arc light ^ber optic loop sensor AQ-08 ................................................................................ 32
5.6 Sensor—unit dependencies ................................................................................................. 32
5.7 Connecting sensors............................................................................................................. 32
6 S6 Syyststem self-superem self-supervisionvision............................................................................................................................................................................................................................ 3434
7 Applic7 Applicaation exampletion example: t: twwo incomers with a tie bro incomers with a tie breakeaker (er (main-tiemain-tie-main)-main)..................................................................................3535
8 Connections8 Connections.............................................................................................................................................................................................................................................................. 3737
8.1 Outputs ............................................................................................................................... 38
8.1.1 Trip relays .................................................................................................................. 38
8.1.2 High-speed output(s)................................................................................................. 38
8.1.3 inary outputs ........................................................................................................... 39
8.1.4 System failure relay.................................................................................................... 39
8.2 Inputs .................................................................................................................................. 39
8.2.1 Current measurement inputs ..................................................................................... 39
8.2.2 Arc sensor channels.................................................................................................. 39
8.2.3 inary inputs ............................................................................................................. 40
8.3 Auxiliary voltage................................................................................................................... 40
9 T9 Testingesting .............................................................................................................................................................................................................................................................................. 4141
9.1 Testing the light-only mode .................................................................................................. 41
9.2 Testing the light and current mode ....................................................................................... 41
9.3 Testing the C FP function.................................................................................................... 42
9.4 Testing the unit operation time ............................................................................................. 42
9.5 Test plan example ................................................................................................................ 42
10 T10 Trroubleshoooubleshootingting................................................................................................................................................................................................................................................ 4444
11 T11 Technicechnical daal datata.................................................................................................................................................................................................................................................... 4545
11.1 Mounting and installation ................................................................................................... 45
11.2 Operating times ................................................................................................................. 46
11.3 Auxiliary voltage................................................................................................................. 46
11.4 Current measuring circuits................................................................................................. 46
11.5 inary inputs...................................................................................................................... 46
11.6 Trip relays .......................................................................................................................... 47
11.7 High-speed output(s) ......................................................................................................... 47
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11.8 inary output(s) ................................................................................................................. 47
11.9 System failure relay............................................................................................................ 48
11.10 Sensors ........................................................................................................................... 48
11.11 Disturbance tests............................................................................................................. 49
11.12 Voltage tests.................................................................................................................... 50
11.13 Mechanical tests.............................................................................................................. 50
11.14 Environmental conditions ................................................................................................. 50
11.15 Casing............................................................................................................................. 50
12 Or12 Ordering infdering informaormationtion ................................................................................................................................................................................................................................ 5151
13 Contact and r13 Contact and reeffererence infence informaormationtion........................................................................................................................................................................................ 5353
AAQQ-110x-110x
Instruction manual
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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-110x-110x
Instruction manual
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Copyright
Copyright © Arcteq Relays Ltd. 2021. All rights reserved.
AAQQ-110x-110x
Instruction manual
Version: 2.01
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1 Document information
Table. 1 - 1. History of Revision 1.
RReevisionvision 1.001.00
Date October 2010
Changes - The ^rst revision of the manual.
RReevisionvision 1.011.01
Date July 2011
Changes
- Sensor chapter revised (^ber pictures and point sensor connections).
- Standard Arc Scheme chapter revised (e.g. scheme 0a added).
- DIP switch de^nition updated (e.g. HSO latch/non-latch).
- LED description revised (current channels LEDs will not blink during the auto-con^guration).
- Partly AQ-110F information added.
- Dimensions and installation chapter, the depth of the unit is changed from 170 mm to 175
mm.
- Casing and dimensions section, the unit size and the size with package have been added.
RReevisionvision 1.021.02
Date April 2012
Changes - The AQ-SASTM chapter removed from the manual.
RReevisionvision 1.031.03
Date July 2012
Changes
- Scheme select DIP switch settings chapter added.
- The point sensor max. wiring length is up to 200 meters.
- System self-supervision chapter revised.
RReevisionvision 1.041.04
Date May 2019
Changes
- Moved the scheme selection content to DIP switch settings, refer to Chapter 3.5.
- Technical data updated.
- Added an application example, refer to Chapter 6.
RReevisionvision 1.051.05
Date November 2019
Changes - Added information to the "Technical data" chapter.
Table. 1 - 2. History of Revision 2.
RReevisionvision 2.002.00
Date October 2020
Changes
- Content completely rewritten to improve grammar and readability.
- 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 original "Connecting sensors" chapter moved to the AQ-0x instruction booklet, and
replaced with a summary of how to connect point sensors. A summary of connecting ^ber
sensors also added to the chapter.
- All technical data checked and updated where necessary.
- Ordering information updated.
- Images updated where necessary.
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RReevisionvision 2.012.01
Date November 2021
Changes
- Panel cut-out installation image added.
- Dimension measurements updated.
- Replaced "one ^fths" with "1 A or 5 A secondary nominal can be selected" in the "Unit
features" chapter.
- Wiring diagram, simpli^ed block diagram, DIP switch diagram & application image(s)
updated.
- Push button image added.
- End covering description added to AQ-07, removed from AQ-08.
- Cut-and-slice text removed all ^ber descriptions.
- Connections image updated.
- The test plan example updated.
- The Main-Tie-Main application example image updated.
- The HSO chapter 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 (separated the codes for AQ-110P and AQ-110F).
- The number for Arcteq's technical support added to the reference information.
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Instruction manual
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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-110x (both AQ-110P and AQ-110F) device is a sophisticated microprocessor-based arc flash
protection unit. It has a combined current and arc sensing which provides more criteria for tripping.
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-110x provides the highest level of dependability as it continuously monitors all internal system
functions as well as all external connections.
The AQ-110x 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. oth AQ-110x variants are 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-110x is a multipurpose arc flash protection unit and can be applied to a variety of applications. 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 the binary bus.
AQ-110x comes in two variants. The AQ-110P variant supports four (4) point sensor channels as well
as one (1) optional ^ber sensor channel. The AQ-110F variant supports three (3) ^ber sensor
channels. All other features are the same in both variants.
The following list presents the main features of the 110P unit:
• 92…265 V AC/DC auxiliary power supply oror 18…72 V DC auxiliary power supply (optional)
• three (3) phase current inputs; 1 A or 5 A secondary nominal can be selected
• one (1) residual current inputs; 1 A or 5 A secondary nominal can be selected
• four (4) arc point sensor channels
• one (1) ^ber loop sensor channel (optional)
• two (2) binary inputs with nominal operation voltage of 24 V DC
• two (2) high-speed semiconductor trip outputs
• three (3) normally open trip relay outputs
• one (1) normally open trip relay output oror one (1) normally closed trip relay output (electronic
lock-out)
• one (1) binary output (24 V DC)
• one (1) system failure output
• twenty (20) indication LEDs
• one (1) push button.
The following list presents the main features of the 110F unit:
• 92…265 V AC/DC auxiliary power supply oror 18…72 V DC auxiliary power supply (optional)
• three (3) phase current inputs; 1 A or 5 A secondary nominal can be selected
• one (1) residual current inputs; 1 A or 5 A secondary nominal can be selected
• three (3) ^ber loop sensor channels
• two (2) binary inputs with nominal operation voltage of 24 V DC
• two (2) high-speed semiconductor trip outputs
• three (3) normally open trip relay outputs
• one (1) normally open trip relay output oror one (1) normally closed trip relay output (electronic
lock-out)
• one (1) binary output (24 V DC)
• one (1) system failure output
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• nineteen (19) indication LEDs
• one (1) push button.
Figure. 3.1 - 1. Arc protection unit AQ-110P.
Figure. 3.1 - 2. Arc protection unit AQ-110F.
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3.2 Dimensions and installation
AQ-110x 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: 102 mm (4.02 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. While the image is of the AQ-110P device,
the measurements are the same for AQ-110F as well.
Figure. 3.2 - 3. Dimensions of the device.
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Figure. 3.2 - 4. Installing a unit into a cut-out.
3.3 Simplified block diagram
The ^gures below presents the main components that can be found in the AQ-110x units (AQ-110P
and AQ-110F).
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The following ^gure presents how to install an AQ-110x unit into a cut-out.

Figure. 3.3 - 5. Simpli^ed block diagram of AQ-110P.
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Figure. 3.3 - 6. Simpli^ed block diagram of AQ-110F.
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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 relays T3 and T4 are always latched. The binary output O1 is
always non-latched!
3.4 Wiring
Figure. 3.4 - 7. Wiring diagram for AQ-110P.
A
T2
T3 SF
T1
T4
X2
1
2
13
12
11
10
9
8
7
6
X1
11
10
9
8
7
6
5
4
3
2
1
Uaux
S1
S2
S3
S4
S5 / AQD
Station battery
+
_
CB1
AQ-110P
_
+
_
+
_
+
IL1
IL2
IL3
I0
X3
HSO1
HSO2
15
14
5
4
3
15
14
13
12
BI2
12
11
10
9
8
7
6
5
4
3
2
1
+24 V
-
BO1
BI1
CB3 CB4
CB2
L> / L> + I>
S1: L> / L> + I>
a / b
S2: L> / L> + I>
8
7
6
5
4
3
2
1
ON OFF
Scheme
selection
SW1
S1: P> / L>
T1/T2 latch: on / off
S5: Fiber loop / AQD
HSO latch: on / off
8
7
6
5
4
3
2
1
ON OFF
FAST / CBFP
100 ms / 150 ms
I>: 1A / 5A
I0>: 1A / 5A
SW2
1/5 A
1/5 A
1/5 A
1/5 A
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Figure. 3.4 - 8. Wiring diagram for AQ-110F.
A
T2
T3 SF
T1
T4
X2
1
2
13
12
11
10
9
8
7
6
X1
Uaux
Station battery
+
_
CB1
AQ-110F
_
+
_
+
_
+
IL1
IL2
IL3
I0
X3
1/5 A
HSO1
HSO2
15
14
5
4
3
15
14
13
12
BI2
12
11
10
9
8
7
6
5
4
3
2
1
+24 V
-
BO1
BI1
S1
S2
S3
TX
RX
TX
RX
TX
RX
CB2
CB3 CB4
S3: L> / L> + I>
S1: L> / L> + I>
a / b
S2: L> / L> + I>
8
7
6
5
4
3
2
1
ON OFF
Scheme
selection
SW1
(N/A)
T1/T2 latch: on / off
(N/A)
HSO latch: on / off
8
7
6
5
4
3
2
1
ON OFF
FAST / CBFP
100 ms / 150 ms
I>: 1A / 5A
I0>: 1A / 5A
SW2
1/5 A
1/5 A
1/5 A
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4 Operation and configuration
4.1 LED indicator functions
The AQ-110P unit has twenty (20) indication LEDs and the AQ-110F unit has nineteen (19) 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.
All current measuring channels (that is, IL1, IL2, IL3 and I0) have their own indication LEDs. When any
channel measurement exceeds the set threshold value for longer than 1.5 ms, its corresponding LED
turns on. In an open CT condition both the corresponding current channel indicator LED and the "Error"
LED are blinking.
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. Please note that the use of
sensor channels differs between the two variants: the S4 and S5 sensor channels are not in use in the
AQ-110F variant.
Table. 4.2 - 3. LED operations of AQ-110P and AQ-110F.
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).
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T1–T4
(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.
S1–S3
(amber) Normal status.
Light information has
activated the sensor
channel.
There is a sensor channel
discontinuity 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
continuity or perform a
system setup (see the
"System setup" chapter);
oror, check what activated
the sensor.
S4
(amber)
N ! OnlN ! Only iny in
AAQQ-110P!-110P!
Normal status.
Light information has
activated the sensor
channel.
There is a sensor channel
discontinuity 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
continuity or perform a
system setup (see the
"System setup" chapter);
oror, check what activated
the sensor.
S5
(amber)
N ! OnlN ! Only iny in
AAQQ-110P!-110P!
Normal status. The ^ber sensor channel
has been activated.
There is a ^ber sensor
discontinuity or a system
setup has not been
performed.
Check the sensor
continuity or perform a
system setup (see the
"System setup" chapter);
oror, check what activated
the sensor.
S5
(amber)
N ! OnlN ! Only iny in
AAQQ-110F!-110F!
Normal status. The QD channel has
been activated.
The ^ber connection to
the quenching system
has dropped off or a
system setup has not
been performed.
Check the ^ber
connection and/or the
system con^guration.
I1– I2
(amber) Normal status. The binary input has been activated.
The binary input has a
loose connection.
Check the binary input
wiring.
O1
(amber)
Normal status. The binary output has
been activated.
(N/A) —
IL1–IL3
(amber)
Normal status (the actual
current is below the set
threshold).
The measured current is
above the set threshold.
There is an open CT
connection in the
channel.
Check the set current
thresholds, or check the
CT wiring.
I0
(amber)
Normal status (the actual
current is below the set
threshold).
The measured residual
current is above the set
threshold.
(N/A)
Check the threshold set
for residual current.
HSO1–HSO2
(red) Normal status. The high-speed output has been activated.
(N/A)
Check what activated the
output, clear the fault and
reset the indicator LEDs
with the push button.
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.
AAQQ-110x-110x
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Figure. 4.3 - 9. The "SET" push button on the device's front panel.
4.3.1 System setup (auto-configuration)
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.
4.3.2 Reset
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.
AAQQ-110x-110x
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