ABB Relion 650 Series Applications Manual page 130

Section 10
Control
General settings
Operation : The operation mode can be set Enabled or Disabled . The setting Disabled disables the
whole function.
GblBaseSelBus and GblBaseSelLine
These configuration settings are used for selecting one of six GBASVAL functions; the base
voltage
line respectively.
SelPhaseBus1 and SelPhaseBus2
Configuration parameters for selection of measuring phase of the voltage for the busbar 1 and 2
respectively, which can be a single-phase (phase-neutral) or two-phase (phase-phase) voltage or
positive sequence.
SelPhaseLine1 and SelPhaseLine2
Configuration parameters for selection of measuring phase of the voltage for line 1 and 2
respectively, which can be a single-phase (phase-neutral) or two-phase (phase-phase) voltage or
positive sequence.
CBConfig
This configuration setting is used to define type of voltage selection. Type of voltage selection can
be selected as:
• no voltage selection
• single circuit breaker with double bus
• breaker-and-a-half arrangement with the breaker connected to busbar 1
• breaker-and-a-half arrangement with the breaker connected to busbar 2
• breaker-and-a-half arrangement with the breaker connected to line 1 and 2 (tie breaker)
VRatio
The VRatio is defined as VRatio = bus voltage / line voltage . This setting scales up the line voltage
to an equal level with the bus voltage.
PhaseShift
This setting is used to compensate the phase shift between the measured bus voltage and line
voltage when:
• a. different phase-neutral voltages are selected (for example UL1 for bus and UL2 for line);
• b. one available voltage is phase-phase and the other one is phase-neutral (for example UL1L2
for bus and UL1 for line).
The set value is added to the measured line phase angle. The bus voltage is reference voltage.
124
UBase of the set Global Base Value group is used as base value of the voltage, for bus and
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1MRK 505 287-UUS B
Busbar protection REB650
Application manual