Westerbeke 12.5 BTDA - Internal Wiring Schematic (12 Stud); Resistance Values

INTERNAL WIRING SCHEMATIC (t2-STOQ} BT GENERATOR
D. COMPOUND TRANSFORMER
· WINDINGS . -. - .
·r- ----·=-.;.. - - - ..,
J D . 1,12 STUD TE.NALBLOCI
I · . I . 6 ·
f I ,-.;til i : ::: ~,~
t . . . l
3
~: 2 .... l · .. ~
1·3~~. I .
I . . . . . 'BLK
G·
BRIDGE RECTIFIEI
COMPONENT RESISTANCE {II OHMS).
A EXCITER STATOR WINDINGS
1 .... 1o.o n ·.. ·
.B. AUXIUARY ROTOR W!NDINGS
1 o b c Auxiliary Windings are measured in .pairs:
a-b .... 1.3 n. k .... 1.3 n. o-a .... 1.a n
2 Diodes (6) .... 0/i.nflnite
3 Ho~ting Reid Windings •••. 8.1 n
4 Thermister ••. .infinite
C MAIN STATOR WINDINGS
1 aRd 2 ..••. ..0.6 Q.. .
3 Main Stator Auxiliary Windings .... :1 .8 a
D COMPOUND TRANSFORMER wttmn.tt:s
1 . .aod.J; .... o.z.o .
3 Compound Transformer Aux. Windings ... 4.3 n
G 8RID~E RECTIFIEFl
Nota: Resistaqce reaqings and voltage checks can I:Jfi.
accesser; easily for~· comporn3nts in the .exciter circuit
A. .. 04 and84 byloeating the calor caded wires at, : .
the connection points shOWn on the abpve schematic.
When ·checking winding resistarJt::,e · V,alues be si.Ire to 'lift
I)Qth ofJhe. component's electrical connections. ·
EXCITER CIRCUIT VOLTAGES (NOMINAL)
AC.,lntoBridge Rectifier: No Load 16 VAC • Fuli,Load 45 VAG
DG.out af B~iclge Rectifier: No Load 7 VDC ~ Full Load 20 VDC
NOTE: A illustrated booklet for the 6 & 12 Stud BT
generators (AC Electrical Testing, Adjustments and
Troubleshooting)
is available in pdf form to download
off our website www.westerbeke.com
·loW"lWEBTER1!11iKE .
fEngines & Generators
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