Load Sharing
Load Sharing
(OP)
I have 3 Solar Taurus 60 turbines driving 4160 vac 4.75 KW generators and am having load sharing problems.I can share load with the B & C machines but cannot load share the A& C machines without getting into a reverse power condition.I have checked wiring from Allen-Bradley Load share modules and is wired accordingly.The only thing I am not sure of is the wiring (polarity) of the CT's as this was done by a contractor.Can anyone else out there suggest something I may be missing?






RE: Load Sharing
Maybe this is obvious, but have the VT circuits been checked, too?
RE: Load Sharing
Are these operating in parallel with a utility or as an island?
RE: Load Sharing
RE: Load Sharing
RE: Load Sharing
Because that's the next logical step.
RE: Load Sharing
What brand of generator do you have? We had the same problem at my jobsite, please tell me more about your equipment. I don't think your LSM module is the problem. It may be something very simple. What platform are you on?
RE: Load Sharing
You have mentioned that you face reverse power problem when you synchronise A & C, do you face the same problem when you synchronise A & B and A with other two generators running i.e B & C. What is the revese power setting in KW and trip time of the generators. Immediately after synchronisation what is the load current on the generator A before it trips on reverse power? Have you ensured that the LSM is sharing datas between them at the moment you initiate auot synchronisation?
RE: Load Sharing
Visit
http://www.basler.com/downloads/VR_parallel.pdf
for more info on generator paralleling
RE: Load Sharing
RE: Load Sharing
I ran across the same simple problem during commissioning on a Solar T60 turbine. Before we found out how simple it was, we done tore up the equipment to figure out what's wrong, me and the Solar Field Representative. It was a humbling experience. Two other causes you might also encounter are people playing with the manual NGP and VOLTAGE Increase/Decrease buttons. If you can't load the generator up, compare how far off it is with the other generators. Once your generator is online and loadsharing with other gensets, your engine speed increase/decrease buttons are locked out. Your voltage Increase/Decrease will still work so it is possible for somebody to be playing with it and next thing you know, the generator tripped offline. I hope your platform load-shed logic is working properly, just in case. There is also a USCG and ABS required electronic inclinometer/collision sensors people are not aware of, if someone starts playing with it, it will cause an E-stop (no 4-minute cooling rundown timer prior to stopping).