Testing The Voltage Selection; Completing The Test; Apparatus Control Apc - ABB RET670 Installation And Commissioning Manual

1MRK 504 088-UEN C
13.11.1.4
13.11.1.5
13.11.2
Installation and commissioning manual

Testing the voltage selection

Testing the voltage selection for single CB arrangements
This test should verify that the correct voltage is selected for the measurement in
the energizing check function used in a double-bus arrangement. Apply a single-
phase voltage of 30% UBase to the U-Line and a single-phase voltage of 100%
UBase to the U-Bus.
If the UB1/2OK inputs for the fuse failure are used, they must be activated, during
tests below. Also verify that deactivation prevents operation and gives an alarm.
1. Connect the signals above to binary inputs and binary outputs.
2. Connect the voltage inputs to the analog inputs used for each bus or line
depending of the type of busbar arrangement and verify that correct output
signals are generated.
Testing the voltage selection for double breaker or breaker-and-a-
half diameter when applicable
This test should verify that correct voltage is selected for the measurement in the
energizing function used for a diameter in a One-and-a-half breaker arrangement.
Apply single-phase voltages to the inputs. H means a voltage of 100% UBase and
L means a voltage of 30% UBase. Verify that correct output signals are generated.
1. Connect the analog signals to the voltage inputs, in pair of two for U1 and
U2. (Inputs U3P - BB1, BB2, LN1, LN2)
2. Activate the binary signals according to the used alternative. Verify the
measuring voltage on the synchronizing check function SESRSYN. Normally
it can be good to verify synchronizing check with the same voltages and
phase angles on both voltages. The voltages should be verified to be available
when selected and not available when another input is activated so connect
only one voltage transformer reference at each time.
3. Record the voltage selection tests in a matrix table showing read values and
AUTOSYOK/MANSYOK signals to document the test performed.

Completing the test

Continue to test another function or end the test by changing the Test mode setting
to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.

Apparatus control APC

The apparatus control function consists of four types of function blocks, which are
connected in a delivery-specific way between bays and to the station level. For that
reason, test the total function in a system, that is, either in a complete delivery
system as an acceptance test (FAT/SAT) or as parts of that system.
Verifying settings by secondary injection
Section 13
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