Diesel Engine Starting Problem

Well, you can sell your watch because you know what time it is.

It's time to call CAT.

Check the troubleshooting section of the service manual. ...

Start here: Cat Generator Model 3512 Service Manual - eBooks Free ...

Don't expect someone to trouble shoot and repair your generator for nothing.

Pay someone to do it properly!

I know what it is. But then how could I with all the information being withheld.

Guess what, a call to the manufacturer after ruling out all issues posed in the manual is your best bet.

Do it rather sooner than later!

Is the pump working now?

yes sir, pump is working. But kindly give some clue how can I check the "speed channel of the controller i.e. DC module in this case and how to check the Driller's control panel

regards

dks

forget the RH DC Module, this has to to with the AC Module on the Cat's or the wiring.

Check the inter-connections between the AC Modules [master/slave & KW/KVAR Load Sharing wiring] if changing the AC Module doesn't fix it.

we put the engine in RUN mode thro governor control switch (stop/idle/run mode switch) .... after warm up cycle during idle mode. In RUN mode the engine is ready to take load

Idle mode : warm up cycle of the engine

Bilds up : generates voltage

engine trip : fuel supply to the engine get cut

nominal operating voltage 600 volts,50 hz, KVA is 1215

it is a working engine

yes, is has a synchro switch and it is 3+1 pattern

engine is tripping before it is synchronised

Throughout my career in technical support I have found that the description "Trips" to be the number one candidate for the "Descriptions that offer the least information award" This award is presented to person or persons with the smallest amount of concept allowed for a sentient being, with consideration for the amount of detail and wether or not the machine control has the capacity to announce the reason for "Tripping".

I'd phone CAT, then, I'm funny that way.

You may want to reconsider.

diesel engine starting problem or engine tripping problem or alternator tripping problem. identify whats the problem and then we think about it.

the problem is 'engine starting', as soon as we put the engine into RUN mode thro the Governor control switch ( stop/idle/run switch) , the engine trips...

It's the AC Module, in Idle the AC Module uses the Mag Pickup to run the speed regulator, when you switch to run the De-Mod ckit in the AC Module switches on and runs the speed regulator from the Hz from the generator.

Replace the AC Module.

Which Ross Hill drilling rig our you on?

sir, it is a refurbished rig E-1400-XI by bharat heavy electricals ltd, india.

replacing the AC module is not helping. we have checked the integrity of the governor control switch (idle/run/stop switch -- S3). By exchanging the complete power and control cable with other engine , we are also now confirmed that problem lies in our generator control panel only. further checking in progress....kindly give any other points to be checked.

kindly inform what is the meaning of De-Mod ckt in the ac module. I would also like to know how the speed regulator works

regards

dks

Speed Regulator works off the signal from the Mag Pickup for Start and Idle. When you switch to RUN the speed regulator switches over to look at the Hz output of the generator for speed control or KW Load sharing if you are on line.

After you switch to RUN everything in the Speed Circuit is in the AC Module looking at the generator output through the PT's.

Is the Speed Control Pot OK?

In RUN the Mag Pickup should out of the circuit but check it anyway.