Current Transformers CT2 and CT3.
(a) Perform paragraph 5-6, step a(l) through (3), above.
(b) Tag and disconnect leads Ti, T2, and T3 from load circuit breaker CB10 at the lower rear section of
(c) Cut and remove tiewraps, as necessary, to free up generator Gl leads, then pull all three leads Ti, T2,
and T2 into the conduit box assembly (32, Figure 5-1).
(d) Cut and remove tiewraps, as necessary, and unwind leads from Ti and T2 from current boost
transformer CT2 or CT3 to be removed.
(e) Refer to Figure 5-2. Remove hexagon head capscrews (1), lockwashers (2), flat washers (3), and
hexagonal nuts (4) to remove boost transformer CT2 or CT3 (5).
Inspect. Check current boost transformers CT2 and CT3 for secure mounting and electrical connections.
Check for signs of overheating.
Test. Test current transformer CT2 or CT3 by replacement if it fails to pass testing.
Repair. Repair current transformer CT2 or CT3 by replacement if it fails to pass testing.
Conduit Box Assembly.
(a) Remove current boost transformers CT2 and CT3 in accordance with step e, above.
(b) Remove main generator leads Ti through T6 from the two wire support angles (6, Figure 5-2) mounted
inside the conduit box assembly (11). Tag and remove leads T1, T4, and T6 from the left wire support
angle by loosening the mounting rings and removing the heat shrinkable fittings holding generator leads to
the angles. Pull generator lead Ti, T4, and T6 downwards through the left wire support angle to remove.
Repeat this procedure to remove leads T2, T3, and T5 mounted on the right wire support angle.
(c) Tag and disconnect all wiring from terminal strip TB 04 (12) at the left interior of the conduit box
assembly (11). See TB1 04 detail inset in Figure 5-1. Tag leads from right (B) side TBi 04 in functional
sets using letter suffixes to denote position on the terminal strip. Example: R1 A, R1 B, and R1 C; R2A,
R2B, R2C, and so on.
(d) Remove hexagon head screws (28, Figure 5-1) and mounting washers (29) holding the conduit box
assembly (32) and bracket (19) to the main stator coil assembly (33). Lift off the conduit box assembly
(32). Generator bracket (19) will be held in place by weight of the main rotor assembly and a recessed
mounting screw at its base.
(a) Remove conduit box assembly in accordance with step f, above.
(b) Remove rotor assembly in accordance with paragraph 5-8.
Do not use a lifting device with a capacity of less than 2,000 pounds (900 kg)
when lifting bracket (19). Failure to observe this warning may result In serious
Injury to personnel.
(c) Attach a lifting device with a minimum of 2,000 pounds (900 kg) capacity to the bracket (19).
(d) Remove hexagon head screw (34) and mounting washer (29) at the bottom of the bracket (19).
(e) Lift the bracket (19) from the stator coil assembly (33).