Manual 37441C
DTSC-50 - ATS Controller
© Woodward
Page 17/106
Voltage Measuring
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The DTSC-50 allows the use of different voltage measuring methods for generator and mains voltage depending
on the model. These are described in the following text.
Measuring
method
Description
3Ph 4W
Measurement is performed phase-neutral (WYE connected system). Phase voltages and
neutral conductor must be connected for proper calculation. The measurement, display
and protection are adjusted according to the rules for WYE or delta connected systems.
Monitoring refers to the following voltages:
•
V
L12
, V
L23
, and V
L31
, or
•
V
L1N
, V
L2N,
and V
L3N
.
3Ph 3W
Measurement is performed phase-phase (delta connected system). Phase voltages must
be connected for proper calculation. The measurement, display and protection are ad-
justed according to the rules for delta connected systems. Monitoring refers to the fol-
lowing voltages:
•
V
L12
, V
L23
, V
L31
.
1Ph 2W
Measurement is performed for single-phase systems. The measurement, display and
protection are adjusted according to the rules for single-phase systems. Monitoring re-
fers to the following voltages:
•
V
L1N
.
1Ph 3W
Measurement is performed for single-phase systems. The measurement, display and
protection are adjusted according to the rules for single-phase systems. Monitoring re-
fers to the following voltages:
•
V
L1N
, V
L3N
.
Table 6-2: Voltage measuring principles
The above described voltage measuring methods are shown with appropriate wiring examples for the different
models for generator and mains voltage measuring in Figure 6-3 to Figure 6-11.
NOTE
LeoPC1 and a DPC cable (Revision B, P/N 5417-557) are required to configure the voltage measuring
methods “1Ph2W”,“1Ph3W, “3Ph3W” and “3Ph4W”
