Arcteq AQ 1000 User manual

AQ-1000
Arc Quenching Device
Instruction manual

Table of contents
2
5
6
7
7
12
15
15
16
19
20
21
22
23
25
26
26
27
27
28
28
30
32
32
32
33
33
33
34
35
36
1. Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1. Device dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2. Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3. Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.4. Device earthing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Device states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Binary input functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Relay functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. Setbutton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10. Self-supervision functions: alarms and errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11. Accessories and arc protection system devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12. Arc protection system testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.1. Preparing AQ-1000 for commissioning tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.2. Testing individual arc sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.3. Testing the full arcprotection system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.4. Testing with arc sensor testers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.5. Restoring thequenching contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13. Application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.1. Mounting and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.2. Device ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.3. Auxiliary voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.4. Output relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.5. Binary inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.6. Environmental ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15. Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16. Contact and reference information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AQ-1000
Instruction manual
Version: 1.04
1 © Arcteq Relays Ltd

1. Revision history
Revision 1.00
Date 20.06.2016
Changes - The rst revision for AQ-1000 manual
Revision 1.01
Date 22.06.2016
Changes - Table of contents corrected
Revision 1.02
Date 3.4.2017
Changes - Technical data updated
Revision 1.03
Date 10.10.2018
Changes - Technical data updated, connections updated, layout updated
Revision 1.04
Date 12.11.2019
Changes - Technical data updated, self-supervision function updated, UL requirements added
Revision 1.05
Date 7.1.2020
Changes - Technical data updated
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 2

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-1000
Instruction manual
Version: 1.04
3 © Arcteq Relays Ltd

Copyright
Copyright © Arcteq Relays Ltd. 2018. All rights reserved.
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 4

2. Safety precautions
The AQ-1000 arc quenching device is intended for making a low-impedance short-circuit between all the
phases, which is comparable to a bolted short-circuit.
Installation shall not be done before the entire system has been veried to withstand a bolted short-circuit. This
verication shall include (but is not limited to) the following:
Source transformers and generators
PTs, CTs, VTs
Circuit breakers
Busbars and cables
Busbar insulators and supports
Switchgear structure.
During tripping, the equipment can exceed a noise level of 85 A-weighted decibels. It is recommended to wear
proper hearing protection when making commissioning tests or when operating the device.
Before installation, it shall be veried that there is no intentional live feed or any unintentional back feed to the
busbars.
Read these instructions carefully and inspect the equipment to become familiar with it before trying to install,
operate, service or maintain it. Anyelectrical equipment should be installed, operated, serviced, and maintained
only by qualied personnel. Local safety regulations should be followed. Arcteq does not assume any
responsibility for any consequences that may arisefrom the use of this material. We reserve the right to make
changes to this document without prior notice.
The device should not be removednor any other service works done, when the energy storage component is
charged or is being charged.
AQ-1000
Instruction manual
Version: 1.04
5 © Arcteq Relays Ltd

3. Introduction
The AQ-1000 is a resettable arc quenching device. The device is used to mitigate the arc flash energy
from an arc flash event. When an arc fault occurs, the AQ-1000 creates an low impedance three-
phase short-circuit which extinguishes the arc and gives the circuit breaker time to open and
completely clear the fault. The arc quenching time is less than 3 ms; when used together with Arcteq’s
arc protection system, the total arcing time can be reduced to below5 ms.
The device can tested up to one hundred (100) times under no-load conditions. Thisallows for
completetesting and commissioning of the AQ-1000 device and the entire arc protection system to
take place on-site. The AQ-1000 can be used in low-voltage switchgears up to 690 V, with short-
circuit currents up to 100 kA. Both new and retrotted installations are possible, which makes the AQ-
1000 an excellent choice for arc protection.
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 6

4. Installation
NOTE!
For the technical instructions related to installation and mounting, please refer to the chapter
titled "Technical data".
4.1. Device dimensions
Figure. 4.1. - 1. Device dimensions from the front. All dimensions in millimeters.
AQ-1000
Instruction manual
Version: 1.04
7 © Arcteq Relays Ltd

Figure. 4.1. - 2. Device dimensions from the left side. All dimensions in millimeters.
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 8

Figure. 4.1. - 3. Reset handle movement area and space reservation. All dimensions in millimeters.
AQ-1000
Instruction manual
Version: 1.04
9 © Arcteq Relays Ltd

Figure. 4.1. - 4. Mounting dimensions from the bottom side. All dimensions in millimeters.
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 10

Figure. 4.1. - 5. Busbar joint dimensions form the back side. All dimensions in millimeters.
AQ-1000
Instruction manual
Version: 1.04
11 © Arcteq Relays Ltd

4.2. Mechanical installation
Figure. 4.2. - 6. Installation picture – tray assembly.
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 12

Figure. 4.2. - 7. Installation picture – C-rail assembly.
AQ-1000
Instruction manual
Version: 1.04
13 © Arcteq Relays Ltd

Figure. 4.2. - 8. Installation picture – busbar mounting alternatives.
NOTE!
For the technical instructions related to installation and mounting, please refer to the chapter
titled "Technical data".
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 14

NOTE!
Busbar sizing and clearance distances shall be dimensioned according to switchgear ratings
and the maximum short-circuit current.
4.3. Wiring
Description
COM 1 – Fiber Connector; Self-Supervision and Trip Signal
COM 2 – Fiber Connector; Self-Supervision and Trip Signal
NOTE!
The image above shows the self-supervision status when the device is de-energized. The
self-supervision contact changes state when the device is energized and the device
recognizes the correct ber connection.
4.4. Device earthing
The device earth (also known as the device ground) is connected to the device chassis. When earthing
the AQ-1000 device, you should make sure that the switchgear has adequate earthing. If the device is
mechanically installed on a tray, C-rail or some other structure that is properly connected to the
switchgear earth, no additional earthingpractices are required.
If the device is installed on a surface that is isolated from the switchgear earth, the device needs to be
earthedthrough an additional cable to the switchgear earth. If this is the case, the earthing cable can
be attached to one of the four bolts that fastenthe AQ-1000 to its mounting surface.
AQ-1000
Instruction manual
Version: 1.04
15 © Arcteq Relays Ltd

5. Device states
Mode Denition
Charging
In Charging Mode, the device charges the energy storage to a high enough energy level as to move the
contacts to the closed position. During normal operation, the charging occurs several times in an hour as
the charged energy level is constantly monitored and adjusted. In this state, the LED indicators "Open"and
"Charging"are on.
Ready In Ready State, the device’s energy storage has reached the optimal energy level and the device is ready to
operate. In this state, the LED indicators "Ready"and "Open"are on.
Trip When the device enters Trip State, the device has received atripsignal. In this state, the LED indicator
"Trip"is on. If the device has operated, the LED indicator "Closed"is also on.
Error
When the device enters Error State, an error (or multiple errors) hasoccured. In this state, the LED indicator
"Error"is on.Depending on the source of the fault, one or several other LED incidators may be blinking.
If the error does not resolve automatically within one minute, the device enters Discharging Mode.If the
device recovers from the fault, Error Stateis removed and the device re-enters Charging Mode if it is not
already in Ready State.
Discharging
Discharging Mode occurs when the device’s auxiliary power is disconnected or if the device has been in an
erronous state for longer than one minute. In Discharging Mode, the energy storage is safely discharged.
The LED indicator forDischarging Mode remains on until a safe voltage level is reached, whenthe indicator
turns off. Discharging will also occur if the device enters a faulty state that prevents it from operating
correctly.
For information on the discharging time specications, please refer to the chapter titled "Technical data".
Commissioning
When performing commissioning tests or periodical testing, Commissioning Mode must be activated by
energizing Binary Input 2. Alternatively, Commissioning Mode can be entered using the AQtivate software.
When in Commissioning Mode, the device can be tripped any number of times without affecting the internal
trip counter.
Blocked
Blocked Mode is activated when Binary Input 4 is energized. In this state, the LED indicator "Blocked"is on.
When the blocking function is active, the movement of the arc quenching contacts is prevented in case a trip
signal is received.
Maintenance
Maintenance Error is generated when the device has reached the maximum number of trips. A Maintenance
Alarm or Error is also generated if the device’s energy capacitor has reached the end of its lifetime.
Please contact Arcteq technical support for further instructions.
AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 16

Figure. 5. - 9. Operating modes Ready and Trip.
AQ-1000
Instruction manual
Version: 1.04
17 © Arcteq Relays Ltd

AQ-1000
Instruction manual
Version: 1.04
© Arcteq Relays Ltd 18

6. LED indicators
AQ-1000 has fourteen (14) LED indicators on its front panel for the various operating states. The
following table describes them in detail.
Table. 6. - 1. LED indicators.
LED name Color LED is OFF LED is ON LED is blinking
Power Blue The auxiliary supply is disconnected. The auxiliary power is
connected.
There is an internal voltage
error.
Error Red The system is healthy. The system is unhealthy. N/A
Trip Red The device has not tripped. The device has tripped. N/A
Ready Green The device is not ready to trip. The device is ready to trip. N/A
Open Green The arc quenching contacts are not
open.
The arc quenching
contacts are open.
The arc quenching
contacts are in an error
position.
Closed Red The arc quenching contacts are not
closed.
The arc quenching
contacts are closed.
The arc quenching
contacts are in an error
position.
Charging Orange The device is not charging. The device is charging. There is a charging error.
COM1 Green Not in use./Not installed. The ber connection is
healthy. The ber connection is lost.
COM2 Green Notin use./Not installed. The ber connection is
healthy. The ber connection is lost.
Clear Green The "Clear" input is inactive. The "Clear" input is active. N/A
Commissioning Orange The commissioning mode is OFF. The device is in the
commissioning mode. N/A
Maintenance Orange No maintenance is needed.
Maintenance is
needed;contact the
manufacturer.
Maintenance is
needed;contact the
manufacturer.
Blocked Red The device is unblocked. The "Blockingfunction"
isactive. N/A
Discharging Red
* (When the device is OFF)The
energy storage has been discharged.
* (When the device is ON)The energy
storage is not being discharged.
The device is discharging
the energy storage. N/A
NOTE!
When the "Error" LED is active, please refer to the table above for troubleshooting.
All self-resolved errors are indicated by a blinking LED, in which casethe "Error" LED isoff.
AQ-1000
Instruction manual
Version: 1.04
19 © Arcteq Relays Ltd