TM5-6115-593-34
NAVFAC P-8-631-34
TO-35C2-3-463-2
LEGEND FOR FIGURE 11-1 (Sheet 2)
1.
Screw
18.
Washer
2.
Washer
19.
Washer
3.
Washer
20.
Screw
4.
Reconn. Board assy
21.
Washer
5.
Bolt
22.
Transformer assy
6.
Nut
23.
Screw
7.
Washer
24.
Washer
8.
Nut
25.
Angle
9.
Jumper bar
26.
Screw
10.
Connection bar
27.
Washer
11.
Jumper bar
28.
Angle
12.
Neutral bar
29.
Bracket
13.
Connection bar
30.
Screw
14.
Limit switch
31.
Nut
15.
Reconn. Board
32.
Washer
16.
Screw
33.
Generator assy
17.
Nut
34.
Clip
(a)
Current transformers CT1, CT2, CT3,
CT11, CT12, and CT13 (7, figure 11-2)
should read 7.5 ohms at 77°F (25°C).
(b)
Current transformers CT4, CT5, CT6,
and CT10 (8) should read 0.420 ohms at
77°F (25°C).
(c)
Current transformer CT7 (16) should
read 0.089 ohms at 77°F (25°C).
(d)
Demagnetize the current transformers
following the resistance tests by
connecting secondary terminals to a
variable AC power source such as a
variac or similar device and slowly raise
the current to 2 amps for CT1, CT2,
CT3, CT11, CT12, and CT13 (10 amps
for CT4, CT5, CT6, CT10, and CT7),
then slowly lower current to 0 amps.
(2)
Current Test.
WARNING
SECONDARY TERMINALS SHOULD NOT BE
LEFT OPEN WHEN AC CURRENT IS APPLIED.
(a)
Test CT1, CT2, CT3, CT11, CT12,
CT13, CT4, CT5, CT6, CT10, and CT7,
by wrapping 10 turns of a conductor
around the current transformer.
(b)
Apply an AC current of 10 amperes to
the conductor.
(c)
Current measured at current transformer
terminals must be 86 milliamps for CT1,
CT2, CT11, CT12, and CT13; 416
milliamps for CT4, CT5, CT6, and CT10;
and 500 ma for CT7.
(d)
Replace defective current transformers.
Replace rubber pads (21) when
reassembling current transformer (16).
c.
Replacement.
(1)
Removal. (See figure 11-2.)
11-5
