Diesel Gen-set Operation Instructions
14
1) F+ and F- terminal of the regulator shall be connected to positive and negative
electrode of brushless exciter’s excitation winding respectively. If DC resistance of
excitation winding is less than 21
Ω
and exciting current under full load is not greater
than maximum continuous rated current of regulator, excitation winding must be
connected with a enough large resistor in parallel until the resistance reaches to 21
Ω
;
2) Excitation winding and regulator of exciter obtain power from output end of
alternator. The acceptable power input range is 171~264Vac and power input is
connected to terminal 3 and 4.
3.3 AS480
Figure 3-7 AS480 structure and wiring diagram
1) Terminal 7 and 8 are connected to main stator (armature) of alternator and terminal
F1 and F2 are connected to stator (magnetic field) of exciter.
2) Terminal 1 and 2 are used for external connection of voltage regulator, thus they
must be short-connected if external voltage regulator is not installed;
3) When this Gen-set is connected in parallel, S1 and S2 are used for connection of
regulating current transformer;
Connection of excitation gain
starting system (EBS)
Slow
Connecti
on BC
No
connectio
n
Rise
Manual trimmer
(optional)
Droop C/T (optional)
Remove connection
before installation
Slow
Connecti
on BD
Stability connection
UFRO connection
