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Section 3 Application examples
The basic functionality of the replacement IED can be easily verified in the project
laboratory before entering the site. The same functionality can be tested at the site
using the RTB615 test box, thus reducing the amount of tests to be carried out when
the 615 series plug-in unit is inserted to its original case and installed. By using the
XRIO-based test templates for replacement, IEDs together with the secondary test
devices RTB615 and Omicron considerably simplifies and speeds up the testing.
Retrofit program provides testing templates for specific IED models which replace the
existing relays. These templates are verified by ABB together with migrated
configuration from existing relay.
Benefits of RTB615 are quite similar for all applications. The test box provides a
convenient interface to access plug-in unit’s hardware interfaces and an easy way to
energize the IED. This helps planning and preparing easily reproducible test
sequences at office. Tests can be automated by predefining relay characteristics,
tolerances and trigger conditions and using the test templates to adapt the setting
values for each IED being tested.
The final trip test (operating the circuit breaker) should always be
done while the IED is inserted to its original case as a part of the
installation.
Current and voltage transformers' correct phasing, ratio and circuit
conductivity have to be checked while the IED plug-in unit is inserted
to the original case as a part of the installation.
Following paragraphs give some examples how RTB615 can be utilized in different
use cases.
3.1 Testing under the Relay Retrofit Program
The basic functionality of the replacement IED can be verified in the project
laboratory before entering the site. The same functionality can be tested at the site
using RTB615, thus reducing the amount of tests to be carried out when the 615 series
plug-in unit is inserted to its original case and installed. Using XRIO-based test
templates for replacement IEDs with the secondary test devices RTB615 and Omicron
simplifies and speeds up the testing.
1MRS758004 B
Section 3
Application examples
RTB615 15
Technical Manual