Manual 02029
Load Sharing Module (Analog Output)
Woodward
11
For this procedure, the generator set must be running isochronously, not
paralleled, and with a power factor of unity (1.0 ±0.1).
1.
Make sure that the turbine is shut down.
2.
Label each CT wire with the phase and polarity that you think it should be.
Even though this identification may prove to be wrong during this procedure,
this step is necessary so that the individual wires may be identified during
the description of the procedure.
3.
Disconnect the phase B CT wires from terminals 6 and 7 and connect these
two wires together. Use a small screw and nut and tape the connection.
HIGH VOLTAGE—Do not disconnect a current transformer from its
burden resistor while the engine is running. The current transformers
can develop dangerously high voltages if open circuited while the
engine is running and may explode.
Figure 3-1. Temporary CT Connection
4.
Disconnect the phase C CT wires from terminals 8 and 9 and connect these
two wires together. Use a small screw and nut and tape the connection.
5.
Connect the two wires from the phase A CT to the phase A input terminals 4
and 5.
6.
Start the engine and apply full load.
7.
Measure the load signal voltage between terminals 22 and 23 and record
this voltage.
8.
Shut the generator set down and reverse the Phase A wires on terminals 4
and 5.
9.
Start the engine and apply full load.
10. Measure the load signal voltage between terminals 22 and 23 and record
this voltage.
11. Shut down the generator set.
Содержание 9907-026
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