TM 9-6115-669-13&P
4.28 CURRENT TRANSFORMER MAINTENANCE.
This task covers:
a.
Removal
b. Test
C.
Installation
General Mechanic’s Tool Kit
(item 2, appendix B)
Automotive Fuel and Electrical System Repair, Tool
Kit (item 3, appendix B)
Reference
Shut down Generator Set
150 kW, paragraph 2.8.1.
None
Two
WARNING
The Generator Sets 150 kW produces lethal voltages.
Turn off power to the EPP III or Generator Set 150 kW before
performing any installation, removal, disassembly, or
assembly work.
Wear protective gloves when performing any work on main
assemblies of the EPP III.
CAUTION
Label all cables before removing electrical or electronic assemblies or
components.
NOTE
This procedure is the same for all transformers T1 to T12 with
resistors R21 to R32 (Example TB1/R21).
a.
Remove stanchion by PDU (1, figure 4-42).
b.
Open access door (2) and secure with prop (3).
c. Install stanchion.
d.
Remove two screws (4), serrated lock washer (5), washer (6) and protective cover (7).
e.
Remove screw (8), serrated lock washer (9), washer (10) and cable 79 end (11) from bus bar
(12).
f . Remove cable 79 (11) from contactor K3. Refer to paragraph 5.10.
g.
Remove cable 79 (11) through center of current transformer T1 (9).
h. Record labeling and position of cables to current transformer (13).
i.
Loosen two screws (14), serrated lock washers (15), cable clamps (16), and remove cables from
current transformer T1 (13).
j.
Remove screws (17), serrated lock washers (18), washers (19), and current transformer (13)
with resistor R21 (20).
4-94
