Autorecloser Stbrrec (79) - ABB Relion 650 Series Commissioning Manual

Section 7
Testing functionality
tested next. Remember to set the parameter
been tested.
7.7.3

Autorecloser STBRREC (79)

Verification of the automatic reclosing function can be considered to consist of two parts; one
part to verify the internal logic and timing of the function and one part to verify its interaction
with the protection system. This section deals with verification of the auto-reclosing function
itself. However, it is practical to start initiate the autoreclosing function by activating a protection
function, for example, by secondary injection tests.
Prepare the IED for verification of settings as outlined in
Values of the logical signals for STBRREC (79) are available on the local HMI under Main menu/
Tests/Function status/Control/STBRREC(79,0->1)/1:STBRREC. The Signal Monitoring in PCM600
shows the same signals that are available on the local HMI.
The purpose of verification before commissioning is to check that entered selections, setting
parameters and configuration render the intended result. The function is flexible with many
options and facilities. At commissioning only the selections and settings intended for use are
verified. If one chooses to reduce some time settings in order to speed up verification, be careful
to set the parameters at intended operational values at the end of the verification procedure. One
such parameter is the reclaim Reset time and could result in a long delay of reclosing shots, for
example, shot 2 and later ones.
The verification test is performed together with protection and trip functions. Figure
a suggested testing arrangement, where the circuit-breaker (CB) is simulated by an external bi-
stable relay (BR), for example a relay type RXMVB2 or RXMD or Breaker Simulator of ABB.
84
Blocked to Yes , for each individual function that has
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6.1"Preparing the IED to verify
Breaker protection REQ650
Commissioning manual
1MRK 505 268-UUS A
settings".
15 illustrates