Voltage Connections; Voltage Connections, Single-Phase Models; Voltage Connections, 3-Phase Models; Voltage Regulation - Kohler 17RES Manual

5.7 Voltage Connections

5.7.1 Voltage Connections,
Single-Phase Models
Single-phase generator sets are available from the
factory connected for 110/220 volt 50 Hz or 120/240 volt
60 Hz. See Figure 5-11 for the factory connections.
Generator sets are not reconnectable.
LO (Neutral)
Ground
Load
Side
Line
Side
4 3 2 1
Stator Leads
60 Hz
120 volt
L0-L1
120 volt
L0-L2
240 volt
L1-L2
Figure 5-11 110/220 and 120/240 Volt, 3-Wire
Configurations
5.7.2 Voltage Connections, 3-Phase
Models
Three-phase model
connected for 230/400 Volts, 50 Hz. See Figure 5-12
for the factory connections. The generator sets are not
reconnectable.
Note: Current transformers (CTs) shown in Figure 5-12
are not used on these models.
TP-6519 8/17
LO
GRD
L2
L1
Factory two-pole
circuit breaker
50 Hz
110 volt
110 volt
220 volt
TRES generator sets
Figure 5-12 3-Phase Configuration
5.7.3

Voltage Regulation

TP-5867
Voltage regulation is performed by the controller and the
SCR module. The controller monitors generator output
voltage and adjusts the excitation current to the rotor
through the SCR module. See Section 4.8, Silicon
Controlled Rectifier module.
5.8 Voltage Adjustment
are
(ADC-RES only)
The factory sets the voltage for correct generator
operation under a variety of load conditions. Usually,
the voltage needs no further adjustment.
Adjust the voltage when necessary according to the
following procedure.
requires a meter that can measure voltage and
frequency.
Use the ADC-RES controller keypad to adjust the
voltage, gain, and volts/Hz.
instructions to adjust each setting and save the changes
using the controller keypad.
PHASE ROTATION
The adjustment procedure
This section contains
Section 5 Component Testing and Adjustment
ADV--5875
55