120/240
Volt, 3
Phase,
Delta Connected Set; 12
Lead:
The 3 phase Delta connected set is designed to
supply 120 and 240 volt,
1
phase current and 240 volt,
3 phase current, Figure 21. For 3 phase operation,
connect the three load wires to generator terminals
Ll,
L2 and L3—one wire to each terminal. For3 phase
operation the L0 terminal is not used.
For 120/240 volt, 1 phase, 3 wire operation, terminals
Ll and L2 are the "hot" terminals. The L0 terminal is
the neutral, which can be grounded if required. For
120 volt service, connect the black load wire to either
theLl or L2 terminal. Connect the neutral (white) wire
to the L0 terminal. Two 120 volt circuits are available.
Connect between any two 3-phase terminals for 240
volt
1-phase
loads.
FIGURE 22. 120/208 V. 3-PHASE WYE
Any combination of
1
phase and 3 phase loading can
be used at the same time as long as total current does
ndt exceed the NAMEPLATE rating of thegenerator.
If no 3 phase output is used, usable
1
phase output is
2/3 of 3 phase kVA.
'L'X
0)
•>
™
240.
V L2—>-o £
L3^
2QL0
V-
"Z-OO NOT USE THIS
CONNECTION FOR ANY
120 VOLT LOADS.
120/240
Volt, 1
Phase,
3
Wire
Unit (3R Units):
Terminal post TO is the grounded (neutral) terminal.
For 120 volt current, connect the "hot" load wire to
either theTI orT2terminal. Connect the neutral load
wire to the TO terminal. Two 120 vo'lt circuits are thus
available, with not more than 1/2 the rated capacity of
the set available on each circuit. Balance the load as
closely as possible (Figure 23).
For 240 volt current, connect one load wire to terminal
Tl and the second load wire to terminal T2. Terminal
TO is not used for 240 volt service.
FIGURE 21. 120/240 V. 3-PHASE DELTA
3 Phase, Wye Connected Set: The 3 phase, 4 wire set
produces line to neutral voltage and line to line
voltage. Line to neutral voltage is the lowervoltageas
noted on the unit nameplate, line to line voltage is the
higher nameplate voltage.
For 3 phase loads, connect separate load wires to
each of the set terminals Ll, L2 and L3. Single phase
output of the higher nameplate voltage is obtained
between any two 3 phase terminals as shown in
Figure 22.
The terminal marked L0 can be grounded. For
1
phase
loads,
connect the neutral (white) load wire to the L0
terminal.
Connect the black load wire to any one of
the other three terminals—Ll, L2 or L3. Three
separate
1
phase circuits are available, with not more
than 1/6 the rated capacity of the set from any one
circuit.
If using
1
phase and 3 phase current atthesametime,
use care to properly balancethe
1
phase
load,
and not
to exceed rated line current.
Figure 22 shows load connections for 120/208 voltage. Other
voltages are available from' either parallei wye or series wye
illustration in Figure 1.
circuit.
If using both 120 and 240 volt current at the
same time, use care not to overload either
Tl
•
o
TO
>
o
>
8
T2
o
FIGURE 23. 120/240 V.
1-PHASE
(CODE 3)
21
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