Permissible Temperature of 16 MW Alternator

Have you tried talking to the manufacture?

Asking us is like asking a musician for medical advice. Well, maybe not that bad, but it doesn't get any better than the actual manufacture.

My Dear, Thanks for comments. Experts says that nothing is better then experience. Thats why i decide to get consulted with experienced persons.Should i increase the cooling surface by adding one more cooler.Same will definitely help in reducing the air temperature.

Regards

The people with the most experience with a piece of equipment will always be the OEM. Anonymous strangers on the internet who have nothing more than a manufacturer and a rating know nothing about the model number, type of cooling, number of coolers, cooling medium, ambient conditions, operating conditions, etc., etc.

If you have already contacted the manufacturer then your next search is for some local engineer/machine designer to help you, be prepared to pay though, since free advice is worth every penny you paid for it.

Bad advice. Even so, who will have better experience than the people that designed and built it?

The manufacture should provide a set of specifications for their equipment. They are also liable for the operation of the equipment. Someone behind an anonymous avatar is not.

I can see scenarios that an alternator could be designed to work in an 150° C environment. I can also see an alternator operating at 95° C in a 25° C environment would be a failure indication. Contact this manufacturer.

I take it this is temperature rise, if so what's the ambient temperature? Are we also talking about an additional 45 or 50 deg C ambient added on top of this?

Is this winding temperature, (cringe) bearing temperature, or something else?

Ask the manufacturer what they think as too high a temperature as high temperature will likely reduce the life, but adding extra cooling to extend the life (possibly only by a little) may not result in an affordable payback period.

Let us know what you find.

AEG Industrial Engineering - Components and Spare Parts

Quit wasting time!

Please go through the operating manual of the generator. You will find limits of temperature of all active parts and the relevant standard applicable to the generator. Go through the standard where limits of temperature (or temperature rise) are specified. If you still find that the observed temperatures are higher then you may like to contact the manufacturer or come to this forum with detailed operational data for advise.

If alternator is having class 'F' insulation and ambient temp. is 45 deg, then it should not give any problem. Better check up with mfr.

Dear, the temperature rise influences the insulation system. MG1 standard recognizes 4 categories of insulation. Class A, B, F and H. and need to consider 2 operating condition. I.e. continuous and standby. Class H insulAtion will operate under 125 degree C on continuous operation basis. This has two part. One is ambient temperature and the other is heat generated by alternator windings.

Is this a serious question? I would think a 16 MW (Mega watt?) power plant would be somewhat larger than my 4 KW (Kilo watt) portable unit and a little more expensive. I would also think that anyone making decisions about that expensive and dangerous of a piece of equipment would know where to get the RIGHT info for it. I am also not so sure that an open forum like this, as good as this one is, is the right place to get this info. But, that's just me. -- JHF