Sensor Failure Alarm Verification; Arc Trip Testing - Siemens 7XG3124 ReyArc24 Technical Manual

2.2 Sensor Failure Alarm Verification

Item Description
1 Disconnect each sensor from the associated RA24 sensor input
2 Confirm the associated sensor LED flashes, the Sensor Alarm LED
illuminates and operation of the Relay Fail Alarm output contact
3 Reconnect each sensor back to the associated RA24 sensor input
4 Confirm the associated sensor Fail indications clear and the
Relay Fail Alarm output contact opens
5 In turn short across each RA24 sensor input
6 Confirm the associated sensor LED flashes, the Sensor Alarm LED
illuminates and operation of the Relay Fail Alarm output contact
7 Remove the short on each RA24 sensor input
8 Confirm the associated sensor Fail indications clear and the
Relay Fail Alarm output contact opens

2.3 Arc Trip Testing

Item Description
1 Initiate the operation of each sensor by the use of a suitably powered
camera flash
* If a current check interlock is employed in your ARC Fault protection
scheme ensure that current is injected into the associated Overcurrent
relay to cause operation of the current check element at the same time
the sensor is flashed
2 Check operation of the corresponding sensor LED and the arc fault trip
output contacts
3 Confirm that the subscribing IED has received the GOOSE SARC
from the RA24
4 View the web browser settings of the RA24 to explain any
unexpected behavior
5 Confirm operation of Flag Reset after each tripping operation. Repeat
ARC trips and confirm correct operation of remote reset using the web
browser
©2014 Siemens Protection Devices Limited
Table 2: Sensor Failure Alarm Verification
Table 3: Arc Trip Testing
7XG3124 Commissioning Guide
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Chapter 3 Page 5 of 8