ABB RELION RET670, Руководство по вводу в эксплуатацию, Страница: 250 / 328

100% GblBaseSelLine to the V-Line and a single-phase voltage of 100% GblBaseSelBus
to the V-Bus.
If the VB1/2OK 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
This test should verify that correct voltage is selected for the measurement in the
SESRSYN function used for a diameter in a Breaker-and-a-half arrangement. Apply a
single-phase voltage of 100%
GblBaseSelLine to the V-Line and a single-phase voltage of
100% GblBaseSelBus to the V-Bus. Verify that correct output signals are generated.
1. Connect the analog signals to the voltage inputs, in pair of two for V1 and V2. (Inputs
V3PB1, V3PB2, V3PL1, V3PL2)
2. Activate the binary signals according to the used alternative. Verify the measuring
voltage on the synchronizing check function SESRSYN (25). 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.
Testing the voltage selection for 1 1/2 CB arrangements
At test of the SESRSYN (25) function for a breaker-and-a-half diameter the following
alternative voltage inputs can be used for the three SESRSYN (SESRSYN 1, SESRSYN
2, SESRSYN 3) functions. These three SESRSYN functions can either be in one, two or
three different IEDs. Table
34 describes the scenario when SESRSYN 1, SESRSYN 2 and
SESRSYN 3 all are in the same IED. If SESRSYN 3 is in another IED, WA1 will be
considered as WA2 and LINE2 as LINE1. The voltage is selected by activation of
different inputs in the voltage selection logic as shown in table
34 and figure 54 .
Section 11
1MRK 504 165-UUS -
Testing functionality by secondary injection
244 Transformer protection RET670 2.2 ANSI
Commissioning manual