THE EXPRESS ESTIMATION OF VALUE OF AN IMPACT CURRENT OF SHORT CIRCUIT OF SYNCHRONOUS MACHINES
 
ANATOLIY SUDACOV, EVGENIY CHABANOV
   
Abstract:
The report contains the definition of value of an impact current of synchronous machines (SM) without usage of supertransient, transient and synchronous inductive resistance. It is justified, if the experiment is carried out for testing of mechanical strength of SM. The express estimation of value of an impact current is carried out on measured greatest peaks of a rotor current on the first period in phases of SM. The report contains also the results of research obtained by traditional and suggested methods. The research results analysis according to the experiment's data confirms the high convergence of calculation of an impact current by the suggested method with calculation results along the all electromagnetic parameters of SM tested at different voltage levels of a stator.
   
Key Words: the express estimation, value of an impact current, short circuit, synchronous machines, rotor, software
   
 
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