77
Preparing for test
Chapter 11
Verifying settings by secondary
injection
4.
Compare the frequency reading with the set frequency and the direc-
tion of the power with the injected power.
The frequency and active power are located in the local HMI under:
Measurements\Monitoring\ServiceValues\SVR
5.
Inject an unsymmetrical three-phase current and voltage at rated val-
ue in two phases.
6.
Compare the injected value with the measured value.
The current phasor menu is located in the local-HMI under:
Measurements\Monitoring\CurrentPhasors\CPnn
The voltage phasor menu is located in the local HMI under:
Measurements\Monitoring\VoltagePhasors\VPnn
2.6
Releasing the function(s) to be tested
The user can release/unblock the function(s) to be tested. This is done to ensure that only the
function(s) under test are in operation and that other functions are prevented from operating. The
user can release the tested function(s) by setting the corresponding blocked parameter under
Function test modes 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 inter-
connected 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 en-
sure 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 function to be tested. The user could also individually
block event blocks to ensure that no events are reported to a remote station during the test.
Procedure
1.
Browse to the ‘Function test modes’ menu.
The Function test modes menu is located in the local HMI under:
Note!
The function is blocked if the corresponding setting under the Function test modes menu remains
on and the TEST-INPUT signal remains active. All functions that were blocked or released from
a previous test mode session are reset when a new test mode session is started.
Summary of Contents for RELION REL670
Page 8: ...Contents ...
Page 72: ...64 About this chapter Chapter 9 Establishing connection and verifying the LON communication ...
Page 174: ...166 Remote communication Chapter 11 Verifying settings by secondary injection ...
Page 190: ...182 Maintenance Chapter 13 Fault tracing and repair ...
Page 198: ...190 Glossary Chapter 14 Glossary ...
