Onan MEP-003A - Page 15

TM5-6115-585-34
NAVFAC
P
-
8-623-34
TO
-
35C2-3-455-2
TM
-
05684C
/
05685B
-
34
f
.
Engine
.
Refer
to
Operator
and
Organizational
Maintenance
Manual
.
g
.
Exciter
Assembly
.
MEP
- 003A
MEP
-
112A
+
1.8
c . Main
Generator
. Exciter
field
voltage
and
current
versus
load
, see
the
following
:
Exciter
Percent of Rated Load
10 - .8PF , 120 V
Volts Amps
0
17.8
0.96
25
21.7
0.56
50
25.5
0.66
75
29.8
0.77
100
34.0
0.87
125
38.7
1.0
$
6.0
1.2
#
4.0
Frequency
Regula
tion
,
Hz
Short
Term
.
Steady
State
,
Hz
Stability
(
30
sec
)
Long
Term
Steady
State
,
Hz
Stability
(
4
hrs
)
Frequency
Drift
...
(
8
Hr
period
)
,
Hz
1.8
6.0
$
1.2
#
4.0
1
.
.
h
.
Exciter
Stator
.
DOD Drawing No.
Number of Poles
Turns per coil
Conductor
.
0
.
.
d . Generator Frame Assembly .
Model ....
MEP
-
003A
DOD
Drawing
No.
72-5270
Number
of
Slots
60
Pitch
of
Coil
.
1-11
Coil
Groups
12
Coils
per
Group
5
Turns
per
Coil
Group
5-5-5-5-5
Conductor
8
strands
of
#
18
AWG
magnet
wire
Resistance
between
lead
.
..0.115
+
0.012
ohms
pairs
T1
-
T4
,
T2
-
T5
,
T3
-
T6
T7
-
T10
,
Tg
-
T11
and
Tg
-
T12
at
25
°
C
(
87
° F )
.
72-5240
8
400
1
stand
of
#
23
AWG
magnet
wire
series
36.0 + 3.6 ohms
.
Connection
Resistance
at
25
°
C
(
87
°
F
)
.
.
i
.
Exciter
Rotor
.
DOD
Drawing
No.
Air
Gap
...
Number
of
Slots
Pitch
of
Coil
Coil
Groups
Coils
per
Group
Turns per
Coil
Conductor
.
72-5220
.052
to
.064
36
1-4
24
2-1
11
1 strand of # 17
AWG magnet wire
0.677 + 0.068 ohms
Model
MEP
-
112A
DOD
Drawing
No.
72-5272
Number of Slots .
108
Pitch
of
Coil
.
1-4
Turns
per
Coil
2
Conductor
.
5
strands
of
#
18
AWG
magnet
wire
Resistance
between
lead
0.071
+
0.007
ohms
pairs
T1
-
T4
,
T2
-
T5
,
T3
-
T6
,
17
-
T10
,
T8
-
T11
and
Tg
-
T12
at
25
°
C
.
.
Resistance
between
T1
-
T2
,
T2
-
T3
and
T1
-
T3
at
25
°
C
(
87
° F )
. .
.
O
.
.
.
e
.
Generator
Rotor
.
Model
...
DOD
Drawing
No.
Air
Gap
Number
of
Poles
Turns
per
Pole
Conductor
. .
.
. .
MEP
-
003A
72-5265
0.090 to 0.106 in .
4
207
1
strand
of
#
14
AWG
magnet
wire
series
3.31 + 0.33 ohms
.
.
.
Connection
Resistance of Connected
Poles at 25 ° C ( 77 ° F )
j
.
Circuit
Breaker
.
DOD
Drawing
No.
(
MEP
-
003A
)
72-5173
(
MEP
-
112A
)
72-5174
Construction
Handle
Spacers
aluminum
Handle Tie Bars
aluminum
Mounting Insert
.
steel
Washer
external
tooth
Studs
brass
with
silver
or
tin
plated
Handle
Tie
Pin
corrosion
resistant
steel
Type
relay trip
Voltage
250
vac
Frequency
(
MEP
-
003A
)
60
Hz
(
MEP
-
112A
)
400
Hz
Interrupting
Capacity
5000A
Relay Coil ..
calibrated
to
carry
0.82A
Trip
1.13A
6
+
3
min
Trip
3.00A
instantaneously
Maximum
Contact
Capacity
104A
Temperature
Range
.
54
°
C
thru
85
°
C
129
°
F
thru
185
°
F
.
.
.
.
.
.
Model
...
DOD
Drawing
No.
Air
Gap
Number
of
Poles
Turns per
Pole
Conductor
.
MEP
-
112A
72-5267
0.030 to 0.048 in .
24
55
4 strands of #18
AWG
magnet
wire
...
3.05
+
0.305
ohms
O
.
.
.
Resistance
of
Connected
Poles
at
25
°
C
1-2
Change
2