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Electrical Test Riddle No.3 - Generator suddenly short circuit test
Please find the final test report of an industrial generator which submitted by an international famous manufacturer for a new production as following.
As you see all characteristics of generator is determinate in three categories. Which category shall be based for system short circuit protection?

Author : Hamid - From: Iran- Firouzabad in Fars
Thu, January 6th, 2011 - 08:00
It's obvious that test on 70% of rated voltage is more accurate and more reliable . Because it is nearer to actual case . But , some manufacturers don't have testing equipment for 70%  of voltage . On the other hand test with 100% of rated  voltage is not recommended and may jeopardize health and life of generator .   
Author : Glavizh - From: Iran
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