ABB REL670 Installation And Commissioning Manual page 148

11.1.4
140
Control
3. Apply a single-phase voltage of 30% UBase to the U-bus and a sin-
gle-phase voltage of 30% UBase to the U-line.
4. Check that the MANENOK output is activated.
5. Increase the U-bus to 80% UBase and keep the U-line equal to 30%
UBase .
The outputs should not be activated.
6. Repeat the test with ManEnerg set to DLLB with different values on
the U-bus and the U-line voltage.
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.
Procedure
1. Connect the signals below 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 cor-
rect output signals are generated.
Testing the voltage selection for double breaker or 1
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 volt-
ages to the inputs according to the table 20. "H" means a voltage of 100% UBase and "L" means
a voltage of 30% UBase. Verify that correct output signals are generated.
Procedure
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 synchrocheck function. Normally it
can be good to verify synchronism 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 your voltage selection tests in a matrix table showing read
values and AUTOSYOK/MANSYOK signals to document the test per-
formed.
Chapter 11
Verifying settings by secondary
1
/ circuit breaker diameter
2
injection