Inspection and Operation of Starlight TFW Series Generator
by Starlight Generator dieselgeneratortechStarlight alternator is divided into two Series. One is TFW, another is GTF ( 800KW - 1500KW 10.5KV high voltage synchronous AC generator).
In this article, we will introduce TFW Series generator inspection and operation. If you are interested,keep reading.
V. Inspection and operation
1.
Inspection
a. Though
the generator, AVR and auxiliary devices are solid and well insulated, if the
generator was stored for longtime it might be moistened, and should be
inspected carefully before operation.
b. Measure
the insulating resistance, of winding against the ground by ohmmeter, if the
value is less than 2 in cold condition, the generator should be dried. Caution:
At measuring, the electronic elements and capacitor should be shorted, and the
AVR. should be disconnected to avoid damaged.
c. Make sure
all connecting joints are tight and contact good.
d. Be sure
the frame is properly grounded, and ground wire should be same as the size of
lead-wires。
e. Make
familiar with the rated data of nameplate before operation.
2. Voltage
adjustment
In general, the generator was carefully inspected and tested in operation before it left the factory, and the normal voltage has been corrected, so it is not necessary to adjust. If necessary, the setting potentiometer of voltage may be adjusted again. If the external potentiometer is used for remote control , it also can be adjusted to set the voltage.
3.Operation
After
inspection and adjustment have been made, and no trouble is found , the
generator can run normally and generate the electricity. In order to keep
generator run well, please remember following notices;
a. The
generator output must be disconnected from the load , then start the prime
mover.
b. Check the
speed and adjust to the rated RPM, the voltage of generator w… get to normal
value, then close the main circuit breaker to the load. The genset speed may be
changed under load , and frequency may be tower than the normal frequency ,
check and adjust the speed as necessary.
c. Before
shut down the genset, remove load and turn off the main circuit breaker. This
is especially important, or the loss of residue magnetism can result.
d. If
starting up the generator for first time or the generator stored for longtime,
generator may be loss of the residue magnetism, and voltage can not built
up,should charge to F+ and F- with DC 12V voltage , the "+" touch to
F, and the" -" touch to F- for 15-20 seconds. Caution: the generator
must be stud still during charging the magnetism, or AVR may be damaged.
e. Three
phase AC generator should be operated at balanced load. Should pay more
attention to the load and the balance of current to prevent the generator loaded on the single phase or serious unbalancing condition, or the AVR. and generator can be damaged.
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Created on Apr 9th 2018 22:34. Viewed 364 times.