Ice AP902 User manual

Instruction manual –AP902 Arc Protection Unit 2 (35)
A1008B
Revision
Date
Changes
Written by
Checked by
A
31/10/2017
First issue
ASI
RBI
B
28/05/2018
Update
HWE
GBI
-
Read these instructions carefully and inspect the equipment to become familiar with it
before trying to install, operate, service or maintain it.
Electrical equipment should be installed, operated, serviced, and maintained only by
qualified personnel. Local safety regulations should be followed. No responsibility is
assumed by ICE for any consequences arising out of the use of this material.
We reserve right to changes without further notice.

Instruction manual –AP902 Arc Protection Unit 3 (35)
A1008B
TABLE OF CONTENTS
1ABBREVIATIONS ............................................................................................................. 5
2GENERAL......................................................................................................................... 6
2.1 Arc protection unit AP902 features........................................................................... 7
2.2 Simplified block diagram .......................................................................................... 8
3OPERATION AND CONFIGURATION.............................................................................. 9
3.1 LED indicator functions ............................................................................................ 9
3.2 LED Operation Quick Guide................................................................................... 10
3.3 Push-button description.......................................................................................... 11
3.3.1 Auto configuration (system setup)..................................................................... 11
3.4 Reset ..................................................................................................................... 11
3.5 Dipswitch settings .................................................................................................. 12
3.5.1 Scheme select dip-switch settings .................................................................... 14
3.6 Non-volatile memory .............................................................................................. 15
4ARC SENSORS .............................................................................................................. 16
4.1 Sensor Type Dependencies ................................................................................... 16
5SYSTEM SELF-SUPERVISION ...................................................................................... 17
6APPLICATION EXAMPLES ............................................................................................ 18
6.1 MV or LV application with current and light condition.............................................. 18
6.2 Circuit breaker failure protection (CBFP)................................................................ 19
7CONNECTIONS.............................................................................................................. 20
7.1 Outputs .................................................................................................................. 21
7.1.1 Trip relays T1 and T2........................................................................................ 21
7.1.2 Trip relays T3 and T4........................................................................................ 21
7.1.3 Binary output BO1 ............................................................................................ 21
7.1.4 System failure relay SF..................................................................................... 21
7.2 Inputs ..................................................................................................................... 22
7.2.1 Arc fiber optic loop sensor channels S1, S2, S3 ............................................... 22
7.2.2 Binary inputs BI1 and BI2 ................................................................................. 22
7.3 Auxiliary voltage..................................................................................................... 23
8WIRING DIAGRAM ......................................................................................................... 24
9DIMENSIONS AND INSTALLATION............................................................................... 25
10 TESTING ........................................................................................................................ 27
10.1 Carrying out testing in light only mode.................................................................... 27
10.2 Carrying out testing in light and current mode ........................................................ 28

Instruction manual –AP902 Arc Protection Unit 4 (35)
A1008B
10.3 Testing the CBFP function ..................................................................................... 29
10.4 Testing arc flash protection unit operation time ...................................................... 29
10.5 Test plan example.................................................................................................. 30
11 TROUBLESHOOTING GUIDE ........................................................................................ 31
12 TECHNICAL DATA ......................................................................................................... 32
12.1 Protection............................................................................................................... 32
12.2 Auxiliary voltage..................................................................................................... 32
12.3 Trip relays T1, T2, T3, T4....................................................................................... 32
12.4 Binary Output BO1 ................................................................................................. 32
12.5 Binary Inputs BI1, BI2............................................................................................. 32
12.6 Disturbance tests ................................................................................................... 33
12.7 Voltage tests .......................................................................................................... 33
12.8 Mechanical tests .................................................................................................... 33
12.9 Casing and package .............................................................................................. 33
12.10Environmental conditions ....................................................................................... 34

Instruction manual –AP902 Arc Protection Unit 5 (35)
A1008B
1ABBREVIATIONS
CB –Circuit breaker
CBFP –Circuit breaker failure protection
EMC –Electromagnetic compatibility
EPROM –Erasable programmable read only memory
HW –Hardware
LED –Light emitting diode
LV –Low voltage
ms –Millisecond
MV –Medium voltage
NC –Normally closed
NO –Normally open
SF –System failure
SW –Software
uP - Microprocessor

Instruction manual –AP902 Arc Protection Unit 6 (35)
A1008B
2GENERAL
AP902 is a sophisticated micro-processor based arc flash protection unit including
complete self-supervision functionality. It is designed to minimize the damage caused by
an arcing fault (arc flash) by tripping the circuit breaker sourcing the fault current. The
AP902 complete system self-supervision function provides the highest level of
dependability by continuously monitoring all internal system functions along with external
connections.
AP902 is designed according to the latest protection relay standards and is hence suitable
for installations in rough environments, such as utility, traditional or renewable power
plants, off shore, marine, oil and gas, mining, steel or any other heavy industry
applications and as well commercial and institutional electrical systems. AP902 is suitable
for either medium voltage or low voltage switchgear and motor control center applications
in both new and retrofit installations.

Instruction manual –AP902 Arc Protection Unit 7 (35)
A1008B
2.1 ARC PROTECTION UNIT AP902 FEATURES
AP902 is a multipurpose arc flash protection unit and can be applied for variety of
applications. AP902 can be used as a stand-alone unit or as part of a more complex arc
protection system through the binary bus. Main features of AP902:
-80-265Vac/dc auxiliary power supply or optional 18-72Vdc power supply
-3 arc fiber loop channel
-2 binary inputs (nominal voltage of 24 or 110 or 220Vdc)
-3 normally open trip relay outputs (direct trip circuit rated)
-1 normally open or optionally normally closed (electronic lock-out) trip relay
output (direct trip circuit rated)
-1 binary output (24Vdc)
-1 system failure relay output
-11 Indication LEDs
-Push-button
Figure 2-1 Arc protection unit AP902

Instruction manual –AP902 Arc Protection Unit 8 (35)
A1008B
2.2 SIMPLIFIED BLOCK DIAGRAM
AP902 simplified block diagram in Figure 2-2 shows the main components of the AP902
unit.
Figure 2-2 AP902 simplified block diagram

Instruction manual –AP902 Arc Protection Unit 9 (35)
A1008B
3OPERATION AND CONFIGURATION
3.1 LED INDICATOR FUNCTIONS
AP902 contains 11 indication LEDs. A user definable text pocket can be slid in for
identifying each LED function (except Power and Error LEDs). LED’s are located at the
front plate of the unit for clear viewing without a need for opening doors.
During power up the unit performs a LED-test. All LEDs are turned on for 2 seconds and
then back off. Only the blue power LED will remain on. When powered up, the unit goes
in 50ms into protection mode even while the LED test is being performed.
In normal operation only the blue power LED is ON.
The fiber sensor LEDs in inactive condition are off. If an arc fiber sensor is activated the
corresponding sensor channel LED will turn on if the activation is longer than 1.5ms. The
sensor LED activation function is latched (steady light). To clear the LED the “SET” button
should be pressed.
In case that a fiber sensor connection drops off or configuration mismatch situation is
detected by system self-supervision function (new sensor connected without running auto-
configuration system setup, see chapter 3.3.1) the corresponding LED will start flashing
and the ERROR LED will activate.
The Binary I/O LEDs are indicating the I/O-lines status. If any of the lines become active
for more than 1.5ms the corresponding LED will turn on (latch).
In trip situation the corresponding trip LED will turn on. Trip outputs are controlled by
dipswitch settings. (See chapter 3.5.)
All activation and trip indication LEDs are latched, even if the dipswitch setting is in non-
latched mode. They have to be cleared by pushing the “SET” button.
LED indications are stored in non-volatile EPROM memory for identifying the trip
information in case the auxiliary power is lost. When re-powering the unit after power
supply loss the actual LED status can be visualized from the front of the unit.

Instruction manual –AP902 Arc Protection Unit 10 (35)
A1008B
3.2 LED OPERATION QUICK GUIDE
LED
OFF
STEADY
ON
BLINKING
ACTION IF ABNORMAL
POWER
Blue
Auxiliary supply
disconnected
Auxiliary power
connected
N/A
Check the power source
ERROR
Red
System healthy
System failure
Configuration
mismatch.
Protection partly
operational
Verify system condition. see chapters 11:
Troubleshooting guide and 5: System self-
supervision
T1,T3,T4
Red
Normal status
Trip relays
T1,T3,T4
activated
N/A
Check the reason for trip. Clear the fault and reset
indications by pushing SET button
T2, T4
Red
Normal status
Trip relays T2,
T4 activated
N/A
Check the reason for trip. Clear the fault and reset
indications by pushing SET button
S1
Amber
Normal status
Fiber sensor
channel
activated
Fiber sensor drops
off or system set-
up not performed
Check why sensor activated or check the sensor
continuity or perform system set-up (see
chapter:3.3.1 Auto configuration (system setup)
S2
Amber
Normal status
Fiber sensor
channel
activated
Fiber sensor drops
off or system set-
up not performed
Check why sensor activated or check the sensor
continuity or perform system set-up (see
chapter:3.3.1 Auto configuration (system setup)
S3
Amber
Normal status
Fiber sensor
channel
activated
Fiber sensor drops
off or system set-
up not performed
Check why sensor activated or check the sensor
continuity or perform system set-up (see
chapter:3.3.1 Auto configuration (system setup)
QD
Amber
Normal status
Quenching
Device channel
activated
Fiber connection
to quenching
system drops off
or system set-up
not performed
Check the fiber connection and/or the system
configuration.
BI1
Amber
Normal status
Binary input 1
activated
Binary input 1
loose connection
Check the binary input wiring.
BI2
Amber
Normal status
Binary input 2
activated
Binary input 2
loose connection
Check the binary input wiring.
BO1
Amber
Normal status
Binary Output
activated
N/A
Table 3-1: LED operation quick guide