Murphy EMS-GC10 - System Configuration

Section 75 00-02-0878
2013-03-07 - 17 -
Single Phase System
The single phase system consists of one phase and the neutral.
The following adjustments must be made to make the system ready for the single
phase measuring (example 230V AC):
Parameter
Adjustment
Description
Adjust to
value
6004
G nom. voltage
Phase-neutral voltage of the generator
230V AC
6041
G transformer
Primary voltage of the G voltage transformer (if installed)
UNOM x √3
6042
G transformer
Secondary voltage of the G voltage transformer (if installed)
UNOM x √3
6051
BB transformer
Primary voltage of the BB voltage transformer (if installed)
UNOM x √3
6052
BB transformer
Secondary voltage of the BB voltage transformer (if installed)
UNOM x √3
6053
BB nom. voltage
Phase-phase voltage of the busbar
UNOM x √3
NOTE: The voltage alarms refer to UNOM (230V AC).
NOTE: EMS-GC10 unit has two sets of BB transformer settings,
which can be enabled individually in this measurement system.
Split Phase System
When EMS-GC10 unit is delivered from the factory, the three-phase system is selected.
When this principle is used, all three phases must be connected to the EMS-GC10
controller unit.
The following adjustments must be made to make the system ready for the three-phase
measuring (example 400/230V AC):
Setting
Adjustment
Description
Adjust to
value
6004
G nom. voltage
Phase-phase voltage of the generator
400V AC
6041
G transformer
Primary voltage of the G voltage transformer (if installed)
UNOM
6042
G transformer
Secondary voltage of the G voltage transformer (if installed)
UNOM
6051
BB transformer
Primary voltage of the BB voltage transformer (if installed)
UNOM
6052
BB transformer
Secondary voltage of the BB voltage transformer (if installed)
UNOM
6053
BB nom. voltage
Phase-phase voltage of the busbar
UNOM
NOTE: EMS-GC10 has two sets of BB transformer settings, which
can be enabled individually in this measurement system.