ABB REB670 Commissioning Manual page 140

Section 10
Testing functionality by secondary injection
134
The tests explained in the test procedures below describe the settings, which can be
used as references during testing before the final settings are specified. After
testing, restore the equipment to the normal or desired settings.
A secondary injection test set with the possibility to alter the phase angle and
amplitude of the voltage is needed. The test set must also be able to generate
different frequencies on different outputs.
The description below applies for a system with a nominal
frequency of 50 Hz but can be directly applicable to 60 Hz.
SESRSYN can be set to use different phases, phase to earth or
phase to phase. Use the set voltages instead of what is indicated
below.
Figure 17 shows the general test connection principle, which can be used during
testing. This description describes the test of the version intended for one bay.
Figure 18 shows the general test connection for a 1½ breaker diameter with one-
phase voltage connected to the line side.
Test
equipment
U-Line
N
IEC05000480 V4 EN-US
Figure 17: General test connection with three-phase voltage connected to the
line side
IED
U-Bus
U3PBB1
N
Input Phase
L12,L23,L31
U3PLN1
UL1
UL2
Input Phase
UL3
N
L12,L23,L31
IEC05000480-4-en.vsd
1MRK 505 372-UEN A
UMeasure
Ph/N
Ph/Ph
L1,L2,L3
UMeasure
Ph/N
Ph/Ph
L1,L2,L3
Busbar protection REB670 2.2 IEC
Commissioning manual