Electrical Connection; Single Phase Loads - MarelliGenerators MJB 160 Instrucciones Y Advertencias De Seguridad

4.5 Electrical connection

Standard generators are supplied with 12 leads (9 terminals).
The entry of the terminal cables in the terminal box is on the right (see to drive end). Entry on the left is possible after having moved the
voltage regulator to the right.
Terminals arrangement permits star series and star parallel connection: it is anyway necessary, when changing the connection from
star series to star parallel, to check and modify the connection to the voltage regulator, according applicable diagrams.
S t a r c o n n e c t i o n
U 1 ( T 1 )
U 2 ( T 4 )
( T 7 )
U 5
U 6 ( T 1 0 )
W 6 V 6
V 5
W 5
W 2
( T 1 2 ) V 2
( T 1 1 )
W 1
( T 9 ) V 1
( T 8 )
( T 6 )
( T 5 )
( T 3 )
( T 2 )
Internal connection diagrams are shown last pages for standard generators (12 leads, with AVR only).
The output cables have to be fixed to the terminal board as indicated in the following figure.
WINDING
Direction of rotation
Generators are normally supplied to operate correctly when rotating clockwise (looking from shaft end side).
Grounding
Inside the terminal box there is a terminal for grounding, and a second terminal is on a foot of the generator. Grounding has
to be carried out using a copper wire of suitable size, in compliance with applicable standards.

4.6 Single phase loads

The standard three phase generators of this series can be used as single phase if the following instructions are followed:
The generator should be used for a maximum power equivalent to 0,6 times the power indicated on the nameplate for three
phase load.
The generator can be connected to star parallel (voltage of 220 Volt 50Hz or 220 – 240 Volt at 60 Hz) and single phase load
should be connected to terminals U1/T1 and V1/T2.
SIN.UM.017.11
Wiring diagram for standard generators
LINE
YES
S t a r p a r a l l e l c o n n e c t i o n
U 1 U 5
T 1 T 7
L O A D
T 4 U 2 U 6 T 10
W 6 V 2
T 12 T 12
W 5 V 1
W 2 V 6
T 9 T 2
T 6 T 11
W 1 T 3 V 5 T 8
S t a r p a r a l l e l c o n n e c t i o n
( T 7 )
( T 1 )
( T 4 )
( T 1 0 )
( T 1 2 )
( T 1 1 )
( T 9 )
( T 8 )
( T 6 ) ( T 5 )
( T 2 )
( T 3 )
WINDING
U 6
(T 10)
U 2 (T 4)
W 5 (T 9) V 5
(T 11)
(T 5)
V 6
W 1 (T 3) V 1
(T 2)
V 2
(T 12)
W 6
W 2 (T 6)
110 V
22
WRONG
W H I T E
B L A C K
R E D
(T 8) U 5 (T 7)
U 1 (T 1)
220 V
ENGLISH
LINE