IMO and based on a previous proz answer

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Note added at 9 hrs (2015-01-08 00:57:09 GMT)
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http://www.proz.com/?sp=gloss/term&id=14535049&float=y
spring charging motor > silnik zbrojenia


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Spring charge motors are DC operated Motor for operating Stored energy Mechanism used to energies (for closing or opening or Trip ) the breaker. These are used in Low voltage Air circuit Breaker,MOCB(Minimum oil circuit Breakers ) Vac *** Breaker ,HV breakers, MOCB, SF6 breakers(Motoraised Actuator used) Etc. It is normally available in 48v DC,110v DC, 220v DC Universal Motors.This will charge the Breakers within a minutes,If manually charge it will take>3to 5 min.It is used for Auto closing /Remote Start Application in process Industries , various Generation to Distribution Substation.Breaker operation will be very fast (less 1 sec).these stored energy is always available in Breaker while closing or tripping by solenoid coil only , with suitable control circuits.With these capabilities Automation Industries work efficiently without any down time . These breaker are not at all operated manually except test purpose
https://in.answers.yahoo.com/question/index?qid=200709290329...
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Electrically operated circuit breaker

When the electrically-operated stored energy circuit breaker is tripped, the spring is recharged by the spring charging motor so that the breaker is ready for the next closing operation.

http://electrical-engineering-portal.com/how-low-voltage-air...
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UL Listed Masterpact Circuit Breakers ANSI Certified Masterpact Circuit Breakers IEC Rated Masterpact Circuit Breakers - Spring Charging Motor (MCH) for ...
http://www.schneider-electric.com/download/US/EN/details/340...