Parallel Operation Problems
It is very easy to tell what is being asked here. What is needed is specific detail. Two devices are intended to be used in a load sharing arrangement. The 2301A load sharing controller is meant to enforce sharing. Failure to work suggests that the voltage does not droop enough to allow the voltage to fall below that of the second energy source before the load gets too large and trips the overload protection. 

The 2301A is a device which allows load sharing between two power generation systems. It creates a sagging load/voltage relationship so that as an alternator etc is loaded it drops below local bus voltage and causes a more lightly loaded and thus higher voltage generator to pick up progressively more load. 

Assuming that the equipment is not faulty it seems likely that voltage shaping being applied to one machine is not adequate to drop the voltage enough for the second alternator to load share. The 2301A can have the amount of "droop" under load adjusted with a pot. I'd guess that the pot needs to be adjusted so that the voltage droops more under load than at present. 



Recall the old "joke"  - What do you call a person who speaks 3 languages / 2 lanhuagrses / one language.
A: Trilingual / Bilingual. guar An Ame....
It's not funny, alas. 

This question is worth persevering with for at least 2 excellent reasons. 


It is a classic "English as a second language" situation where the OP writes far too little, as expressing the question cogently in English is difficult.
AND some English only speakers who are bright technically are not able to get their brain around the language constructs.

The OP's problem is clear - they have adequately explained what they want to do and the equipment used and what is going wrong.
What is required is clear. The details are not.

A small amount of persuasion will fill in the gaps.

(2) This is a vastly more rewarding question than about 90% that get asked here. This is a real world application of a complex and unusual piece of equipment doing a crucial real world task.  Having this topic discussed here will be the first introduction that many people have to this piece of equipment.