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Thank you Waross. The solution worked.

[img https://res.cloudinary.com/engineering-com/image/upload/v1508092630/tips/Untitled_ycxqwh.jpg Hello All, I am Michel, I got some issues commissioning CDVRs. Please do help if you can. I have 3 CDVRs connected as above for cross current compensation. My CDVR setting is enabled for Droop...

@waross I have taken into consideration the "its brand new issue" already. The guy on site found good IR readings on the Exciter Stator and also found the diodes to be good. The system we work on with the self excited setup generates about 350V on Idle and 600V on Run speed. This works fine on...

@waross Thank you for your response. From what you have said, I too am in concern with the "bootstrapping performance". I am currently having this checked. @redlinej Thank you for your response. Attached is the connection diagram. Please note that this AVR is not designed for PMG...

Good morning, This is Michel. I have a concern and this is the first time I have heard of such an issue occurring. Any help would be much appreciated. I have a Kato alternator that is a PMG set. Now since my AVR doesn't support PMG supply and works on the Generator bus voltage, the connections...

Parchie The generators are wired in this order Gen 4-Gen 1-Gen 2-Gen 3.Gen 4 is the first Gen actually. I just checked the CT connections, they are wired exactly as your said. Could you check again.

Thank you guys for the prompt response! @redlinej The SR4A has a bias from a voltage pot @MikeL I shall try replying to most of your questions as my knowledge on the droop logic is less. We have 1600:5 CTs on all. So yes, a 5 amp secondary. Initially the droop setting was off on the CDVR, I...

I am having a problem with the sharing of VARS between these 2 kinds of regulators!! I shall explain the system in detail, hope you can help! Firstly, I have three generators of 1000 kVA rating wired to a Basler SR4A regulator. As I recently required a power upgrade, I added a fourth generator...

Thanks Guys, I have figured this out.

Good Afternoon to all, Just need some assistance, hope you can help. I have received a PLC for service that has some outputs to the engine D398. I am trying to figure out what these signals do. The output on the PLC to the engine is 1. Alum 24V to the Governor 2. Air Inlet Close Valve Does...

Thank you for all the help so far:)

Hello Mike, I have received a lil info about the module. The voltage output is rated 70V for the AVR.I wonder if the dissimilarity between the exciter coils is what is causing this. Coz one is a single exciter coil and the other a dual.

I am currently not able to work around the engines due to other work being carried out but I can tell you that on other projects with Kato generators, the resistance I have measured is 23.6ohms. And yes, F1 and F3, F2 and F4 are tied together.These are not PMGs is what I know. These engine...

Thank you guys for your response @waross Yes, the avr is capable of giving 100V and they changed the AVR @catserveng my knowledge is extremely bad about generators, so I might be providing incorrect info. the voltage readings I provided were the DC output to F1 and F2 though. The resistance my...

Good Morning Everybody, I am Michel. I have a question. I am on a rig right now running 4 3516 engines with 600V Kato Generators. I was running with 4 generators with Dual Exciter Coils and was able to load share perfectly. Now I send one generator to be rewound and it returned with a...

Hello!!! I am commissioning a rig right now. We have four engines basically controlled by Ross Hill controls with synchronization etc. I am getting my load banks in and I want to perform a complete test with all written documentation covering all aspects of a commissioning job. Please kindly...

Hi!!! I am having a problem as I am not able to control the voltage. This is on a rig. I have a PWM module giving the excitation voltage to the alternator . These also have Voltage regulator cards and Metering module which does the current sensing rather the comparison between gen voltage and...

Thanks Mike!!!! Alright today, I had to replace an AC module as there was a problem with one of them. And now its a new result. Now all I see the KVARs going negative once i sync on Gen 2 only and generator trips off within 8sec... Help me... This trouble is killing me...

Thank you guys for the valuable information!!! @Mike L This is a real old system, no modern electronics like the easy gens. Got the AC modules, AVR, Master slave circuitry etc This SCR house was dated at least 30 years back. I am working on the refurbishment. Initially when I tried to sync...

Alright thanks guys for all the help, will do a little more of study, just cant figure out why my breaker is tripping off?!!