Search results for query: *

amper, This dose not look like a big problem,just keep in mind that the motor can get slightly warmer when run at a lower voltage.

Thanks nawao, ScottyUK, slavag & niallnz, Has anyone worked with Woodward SPMD11 & SPMD21? It looks like I will be useing these controllers,I looked at the manual in it is not helpful at all... Dose anyone know how the SPMD21 works as far as going to Utility and going to generator? I dont see...

burnt2x, I always design simple to operate systems thats why I will disagree with everyone that thinks otherwise.In my eyes it takes a complex design to achieve a simple operation while every one wants to take the short cut and design the control system to be simple but not the operation.At the...

Hi catserveng, The reason of why I am useing 4 CAT C9 insted of 1 big generator is because this hospital use to be in 2 sections and now thay are merging and adding more sections and turning the hospital in to one big hospital,the existing stand by generators were CAT C9 and are fairly new and...

That is what I am trying to do,have the generators synchronize to utility and when the bus is on utility I trip the generator breakers and cool down. The reason why I want to actively synchronize to utility is in the case of low fuel so I can quickly transfer and unload to utility... I have...

nawao, Yes I have UPS systems all over the hospital and that is not the problem... I just dont want to have the lights flicker nor do I want to dump and spike the power grid with a 1 MW load.

Hello saltukhan, Paralleling UPS's where either one cant handle the load by them self is a bad idea and a really bad idea in a hospital.The point of paralleling UPS's as some people have already noted is for redundancy and redundancy only when the units are physically separated,the point of...

Rafiq, I am in the design stage right now and looking at what would be the best way to achieve this... I am still looking at diffrent controllers to do the job easyer and use less of the PLC for control. I will keep you all updated on my progress. Thank you to every one on this form for your...

Already have permission from the utility company to synchronize and already have protective relays. if thats how its normally done what are you going to do about the load, what if you cant bring the load down?

Hi Bill thanks for the reply, The generators are for a hospital,when their is a black out the generators go online and synchronize together and pick up the load for the hospital. The problem is when the utility is restored I need to transfer the hospital load from the generators to utility in...

Hello all, I need to synchronize 4 CAT C9 generators to a bus and then synchronize the bus to utility. I am useing a Woodward SPMD synchronizer & load sharing module on each generator. Now here is the part that I am haveing problems with how do I synchronize the bus to utility? I was...