RADIATOR GP 7C4401 - Caterpillar

Check at no load. If there are load differences between the two generators, it is caused by the two generators not being set at precisely rated speed. To correct this problem, take the second generator off the bus and set each engine at precisely rated speed with the remote speed set point potentiometer. Parallel the second generator again and recheck at no load and rated load.(d) Take generator two off the bus. It is set up. Now proceed to parallel generators one and three, one and four, etc. following this same procedure. Since generator one and two are now set up, only make adjustments to the newly added generator (3, 4, 5 etc).(3) If load hunting occurs between the generators, reduce the GAIN voltage set in Step 5 from 6V DC to 5V DC at 100% load for all generators on the bus. If there is still some load hunting, decrease this GAIN voltage further to 4V DC for all generators.(4) Remember, unequal load sharing at no load is corrected by adjusting the remote speed set point potentiometer of the KG30 Governor Control Unit, while unequal load sharing at full load is adjusted with the GAIN adjustment of the LMG 03 Loadshare Unit.B. Prime Power (Island) Load Sharing In DroopLoad sharing in droop with the LMG 03 is used when other generators on the bus have mechanical droop governors or when the entire bus is run in droop. This type of application may be found on some older prime power (island) sites that were built before isochronous loadshare governors were available. The advantage to using the LMG 03 operated in droop over using only the KG30 in droop and not using the LMG 03 is the method of calculating droop.The LMG 03 calculates droop as a function of generator output, while the KG30 calculates droop as a function of actuator angle using the feedback signal. Therefore, the droop calculated by the LMG 03 is not affected by engine variables such as actuator linkage, injector differences, air conditions, etc., as is the case with the KG30. In this way the LMG 03 provides for a constant generator output at a given rpm.(1) Verify that there are no wires connected to any of the following terminals: 17, 18, 19, 20, 21, 23 and 24. If wires are connected to any of these terminals, they must be removed to run in droop.(2) Verify "LMG 03 Basic Setup Procedure" was performed for each generator.(3) The percent droop of the other engines on the bus must be known so that the units with the LMG 03 can be matched for load sharing. See "Generator Set Applications, Droop Definition" for a detailed description of droop.
LMG 03 Loadshare Unit
(1) Droop potentiometer.
KG30 Governor Control Unit
(2) Maximum speed potentiometer.(4) With all load off the newly installed generator, run engine at no load-rated speed. Load the generator to 100% rated power. Slowly turn the LMG 03 droop potentiometer (1) clockwise (CW) to about the 5 mark on the