Woodward 2301E, Инструкция по установке и эксплуатации, Страница: 133 / 182

Manual 26641 2301E Digital Control
Woodward 123
5. Connect the two wires from the phase A phase CT to the phase A input
terminals 4 and 5.
6. Start the prime mover, apply full load, and monitor the load sensor output.
Start a list and record this value.
7. Unload the system, short the A phase CT and reverse the phase A CT wires
on terminals 4 and 5.Un-short the A phase CT.
8. Apply full load, monitor the load sensor, and record this value.
9. Unload the system, Short the A phase CT remove phase A CT wires from
terminals 4 and 5, and connect them to phase B input terminals 6 and 7. Un-
short the A Phase CT.
10. Apply full load, monitor the load sensor, and record this value.
11. Unload the system, short the A phase CT and reverse the phase A CT wires
on terminals 6 and 7, un-short the A phase CT.
12. Apply full load, monitor the load signal, and record this value.
13. Unload the system, short the A phase CT, remove phase A CT wires from
terminals 6 and 7, and connect them to phase C input terminals 8 and 9, un-
short A phase CT.
14. Apply full load, monitor the load sensor, and record this value.
15. Unload the system, short the A phase CT and reverse the phase A CT wires
on terminals 8 and 9.
16. Apply full load, measure the load signal, and record this reading.
17. Unload the system and compare the six readings taken.
18. Short the A Phase CT, remove the phase A CT wires from terminal 8 and 9
and connect the phase A wires to the pair of terminals that produced the
highest positive load value and in the polarity that produced the highest
positive load value.
19. Un-short the B phase CT and connect the B phase CT wires to terminal 6
and 7.
20. Un-short B phase CT, apply full load and measure the load signal. Start a
new list and record this reading.
21. Unload the system, short the B phase CT, and reverse the phase B CT wires
on the same terminals, un-short the B phase CT.
22. Apply full load, measure the load signal, and record this reading.
23. Unload the system, short the B Phase CT and remove phase B CT wires,
and connect them to terminal 8 and 9.
24. Un-short the B Phase CT and apply full load, measure the load signal, and
record this reading.
25. Unload the system, short the B phase CT and reverse phase B CT wires on
the same terminals.
26. Un-short the B phase CT and apply full load and measure the load signal.
Record this reading, and compare the four readings on the list.
27. Unload the system, short the B phase CT. Remove the phase B CT wires
and connect them to the pair of CT input terminals that produced the highest
positive load signal reading and with the polarity that produced the highest
positive load signal reading.
28. Connect these C phase CT wires to terminal 8 and 9.
29. Un-short the C phase CT, apply full load, measure the load signal, and
record this reading.
30. Unload the system, short the C phase CT and reverse the phase C CT wires
on the same terminals.
31. Un-short the C phase CT, apply full load, measure the load signal, and
record this reading.
32. Unload and shut down the system. Compare the two readings.
33. Connect the C phase CT wires to the same pair of CT input terminals, but in
the polarity that produced the highest positive load signal reading.
34. Re-label each wire with the phase designation of the terminal that it is now
connected to.
35.
Verify all CT’s are not shorted on the terminal block.