GENERATOR SET CONVERSION INSTRUCTIONS.

TM 5-6115-465-12

TO-35C2-3-446-1

NAVFAC P-8-625-12

TM 06858B/06858D-12

f. Connection for Parallel Operation.

(5) Install another coupling and driving stud.

Drive the ground rod down until the new coupling is

just above ground surface.

WARNING

(6) Use a minimum of 3 sections of 3 foot length

ground rods. Add additional sections until ound rod

Do not attempt to connect paralleling

has been driven sufficiently deep to provide effective

leads while either or both of the units

ground.

to be paralleled is operating. Make

sure that there is no input to the load

(7) Remove driving stud and top coupling.

f r o m another source. Failure to

observe this warning may result in

(8) Connect clamp and ground cable to ground

death by electrocution.

rod and securely tighten screw.

(1) Identify the units to be paralleled as Unit

e. Load Connection.

No. 1, Unit No. 2, and Unit No. 3.

(2) If the generator sets are to share a load

WARNING

greater than the KW rating of a single unit, connect

load terminal boards as shown in figure 2-4.

Lethal voltages are present at the

NOTE

load connection board of the

generator set during operation, Do

Paralleling of precise generator sets

not attempt to connector disconnect

load leads while the generator set is

requires that paralleling cables be in-

stalled and the shorting plug in the

operating. Do not attempt to connect

lower paralleling receptacle of each

or disconnect load leads with the

generator set be removed. Paralleling

generator set shut down and the load

of utility generator sets requires that

connected to another power source, or

the shorting plugs be installed on all

while the enerator set is parallel to

sets.

another which is operating.

(1) Open the left access door to the generator

com artment (figure 1-2) and remove the safety from

WARNING

the load terminal board (figure 1-2).

The generator sets must be connected

(2) Insert load leads through plate and sleeve

to the load through individual circuit

assembly (figure 1-2) located to the left of the

interrupters.

generator set air intake.

(3) Situations which require that continuous

(3) A 208 or 416 Vac three phase load may be

power be supplied to the load necessitate that load ter-

connected between terminals marked L1, L2, L3 and

minal boards of parallel generators be connected as

LO (figure 2-3).

shown in figure 2-5. This arrangement allows transfer

of the load from generator set to the other without

NOTE

interrupting power to the load.

The load terminals will accommodate

g. Auxiliary Fuel Source Connection.

2-wire single phase and 4-wire, 3

phase loads. One or more single phase

( 1 ) Connect the auxiliary fuel line to the

loads can be served alone or in com-

generator set auxiliary fuel supply connection (figure

binations with 3 phase loads; but the

1-2) located below the integral tank filler cap.

load on any one phase must not ex-

ceed 100 ercent of the current rating

(2) Connect the auxiliary fuel line to the aux-

of that phase.

iliary fuel source.

(4) Phase rotation for three phase loads is L1,

(3) Position the fuel selector valve (figure 1-2) in

L2, L3.

the AUXILIARY position.

NOTE

2-4. GENERATOR SET CONVERSION

INSTRUCTIONS.

After load connections tighten ter-

m i n a l binding nuts with plastic/

a. To convert the generator set for operation at

phenolic box end wrench and install

120/208 Vac or 240/416 Vac, proceed as follows.

safety cover, refer to paragraph 2-4

a n d check that the reconnection

board is set for proper voltage.

2-6

Change 14