Section 8 Commissioning
8.1 Commissioning checklist
Familiarize yourself with the protection relay and its functionality before you start
the commissioning work.
• Ensure that you have all the needed station drawings such as single line and
wiring diagrams.
• Ensure that your version of the technical manual applies to the protection relay
version you test.
• Ensure that your setting software and connectivity packages work with the
protection relay version you test.
• Find out if you need any additional software.
• Ensure that you have the relay settings either on paper or in electronic format.
The settings and logic should be well documented.
• Inspect the settings to ensure that they are correct.
• Ensure that you have the correct cable to connect your PC to the protection
relay's communication port. The RJ-45 port supports any CAT 5 Ethernet
cable but the recommendation is STP. A micro USB type B cable is also
needed if you need to configure the relay from the front USB port.
• Test your PC's communication port before you go to the site.
• Find out who to contact if you have trouble and make sure you have a means
to contact them.
• Find out who is responsible for the settings.
• Ensure that you have with you the proper test equipment and all needed
connection cables.
• Ensure that the owner of the switchgear familiarizes you with the work site
and any special aspects of it.
• Ensure that you know how to operate in emergency situations. Find out where
the first aid and safety materials and exit routes are.
8.2 Checking the installation
8.2.1 Checking power supply
• Check that the auxiliary supply voltage remains within the permissible input
voltage range under all operating conditions.
• Check that the polarity is correct before powering the protection relay.
2NGA000823 A Section 8
Commissioning
REX610 67
Operation Manual
To Next Page
Loading...
