how to operate machine under low voltage ( surface griender)

The problem seems to be that the transmission line or transformer serving the area is insufficient for the load.

If it is an industrial area you should have access to a 3 phase point. At least test the other phases.

If you are in a residential area you might be one of the causes of the problem.

I would consult with the electricity supplier to obtain their rules and requirements.

u need a voltage stabliser, unbalanced type , input voltage range-320-480v and output-380v.

we deal in that and u can contact us at saipkl@yahoo.com

380 Volt and German Machine -I am (almost) sure your motor is meant to be fed 3 phases.First make sure it is to be fed 3Phases.

You say you are in India and get 190V instead of 230V- this is 1 phase supply!

If you use Indian 415V 3Phase supply you would solve all problems.

Hi -

It should be possible to use a step-up transformer to take care of all your problem - can you supply make and model info for the machine?

!:-)

my machine is elb schilief german model 1987

Yea feed the machine proper voltage.

Can't you work with 33% less oxygen in air? 33% less food? 33% less rest?

Pineapple

Hi

I am very curious , How did you manage to connect a three phase motor to a single phase supply and you say it does work? please teach me.

380VAC German made equipment is definitely a 3φ/50Hz (unless otherwise specified) machine. The electronics maybe 220VAC single phase, but than this will be taken care off in your internal distribution panel. If you really need a 3 phase as I guess you do, and if you really have a single phase supply, which I also guess you do, than you will need to either connect it to a 3 phase system, or use a phase converter. And the best suggestion I can give you, is get someone who KNOWS what he is doing.

And BTW, why not use a spell checker it's right there...(ABC with a check mark)

Hope it helps

Wangito.

Hello, is the electrical supply any better than it was when I visited your wonderful country back in 1995? I was in Delhi and Noida industrial districts visiting some manufacturers.

You will have some real challenges. As a single customer, I know that you cannot influence the supply authority to overcome the difficulties that sometimes happen on your grid.

As everyone is saying, you need the right voltage (and current potential) for your machine to operate properly.

While a "step up" transformer might seem to work in principal, that will cause your line to draw greater power and further drop the voltage for all that branch and possibly cause blackout.

You have a choice like most others in your situation. The choice is what investment to make. You would be well aware of available generators to make your own supply but I presume that recent changes in fuel costs are changing the suitability of that choice. The alternative is to "store" energy from the available supply and then use something like a UPS to drive the system. If you have good continuity of supply (very few blackouts) then a good storage system would be attractive.

The reason that I'm mentioning this is as follows.

The input side will be receiving the fluctuating power that you describe from the grid, and conditioning that for storage (I'm thinking of DC batteries). This will be a steady draw on the supply lines rather than spiking each time motors change direction and so on.

The output side will be drawing from a stable low impedance power source and be able to be very stable. (You could have a "small" well regulated supply for your machine controller and sensors and a less precise "heavy duty" supply for your motors and such.)

Even with a modest storage system, this would allow you to shut down the machine when a blackout happens, rather than just stopping mid cycle.

Hope these suggestions are helpful