ABB REG670 - Page 261

Testing the voltage selection for single CB arrangements
M2377-473 v7
This test should verify that the correct voltage is selected for the measurement in the
SESRSYN function used in a double-bus 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.
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
M2377-691 v6
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
GUID-12E7DA63-FE04-4C83-9BA6-34818C510DB8 v4
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
24 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
24 and
figure 65.
1MRK 502 073-UUS A Section 13
Testing functionality by secondary injection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 255
Commissioning manual