A NEW SCHEME FOR MOTOR PROTECTION COMPRESSOR TRAINS SERIES ER2

L. V. Dubynets, R. V. Krasnov, D. V. Ustymenko, P. M. Zatolokin
2010 Nauka ta Progres Transportu  
The new scheme of protection of the engine DK 409 (DK406) of the compressor (EK 7B) on electric trains of series ER2 is offered. Such a scheme provides accurate and reliable protection of the electric machine, unites in itself the protection functions both under overloads with long-term currents and in case of short-circuit.
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