DEG set

And?

Veer

Yes, of course it can. A gas leak detector giving off a positive signal would be a trigger to either lock-off the starting process or shut down. The starting sequence would pass through this sensor.

Mark

mark

thanks for y'r response. the problem associated with this is if we implement this logic and there is a shutdown in our GEG system .we have to opern gas lines for maintenace of GEG system but at that time DEG will not start as per this logic,but the same time we need emergency power ,how this can be tackled?

You can always add a reset pushbutton to reset the gas leak alarm so that the DEG can start after you acknowledge the gas leak alarm and manually reset it.

i feel resetting alarm will not serve the entire purpose as it is being implemented as "condition " not to start in case leak alarm. if DEG is running and alarm comes it can be reset ,where as in case you implement it in logic, DEG will not get ready to start condition fullfilled so even level for even accepting start commond will not reach in logic,is it not!

Veer

Perhaps you need a different platform that can be programmed with greater kinship to your requirements. This problem should not be so resistant to a simple solution. Unless your dedicated equipment is expensive, try a programming changeover using something more commonplace.

If the changeover would be too expensive, hand the problem off to your manufacturer's technical support folks. Maybe they'll develop a wing nut you can add on to provide a solution.

If you are the manufacturer's technical support folks -------OOPS!

Mark

Veer

The emergency backup is normally accomplished using a redundant duplicate system that only runs when the main system shuts down.

This is especially useful in breakdowns. But it is more often used as routine maintenance when you can parallel the systems (if required), then shut down the original and run on the duplicate while the original is being maintained. The duplicate now becomes the main supply until it's time to shut it down for its maintenance. Some folks think it's cheaper to spend the cash for a redundant system than to have to suffer shut-downs.

Mark