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Preparing for test
Chapter 11
Verifying settings by secondary
injection
ServiceReport/ServiceValues
4.
Inject a unsymmetrical three-phase current and voltage at rat-
ed value in two phases.
5.
Compare the injected value with the measured value.
The phasor menu is located in the local-HMI under:
ServiceReport/Phasors/Primary and Secondary
2.6
Releasing the function(s) to be tested
The user can release the function(s) to be tested. This is done to set only the tested func-
tion(s) in operation and prevent other functions from operating. The user can release the
tested function(s) by setting the corresponding parameter under BlockFunctions to NO
in the local HMI. When testing a function in this blocking feature, remember that not
only the actual function must be activated, but the whole sequence of interconnected
functions (from measuring inputs to binary output contacts), including logic and so on.
Before starting a new test mode session the user should scroll through every function to
ensure that only the function to be tested (and the interconnected ones) are set to NO.
A function is also blocked if the BLOCK input signal on the corresponding function
block is active, which depends on the configuration. The user should therefore ensure
that the logical status of the BLOCK input signal is equal to 0 for the tested function.
The user could also individually block event blocks to ensure that no events are reported
to remote station during the test.
Procedure
1.
Browse to the ‘BlockFunctions’ menu.
The BlockFunctions menu is located in the local HMI under:
Test/TestMode/BlockFunctions
2.
Browse to the function that should be released.
Use the left and right arrow buttons. Press ‘E’ when the desired
function has been found.
Note!
The function is blocked if the corresponding setting under the BlockFunctions menu re-
mains on and the TEST-INPUT signal remains active. All functions that where blocked
or released from previous test mode session are still valid when a new test mode session
is entered.
