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MA7B Motor Drive Mechanism
 
     
> ON LOAD TAP CHANGER
> OFF CIRCUIT TAP CHANGER
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Main Technical Data
      MA7B is improved product of MA7 motor drive mechanism, it is mainly used for the tap change operation of drive control ZM series and ZVM series on-load tap-changer.
      Motor drive mechanism is not only meeting to the step by step control requirement, but also can be operated by hand operation with handle, and it has the hand operation and motor drive interlock protection device. Whether use remote operation or on site operation can be chosen by remote or on site control diverter switch. It equipped with the electric limit and mechanical limit device of against the both ends are over position. There is tap position indicator and tap-changer indicator. Application counter records the operation times of tap-changer. The case is dustproof, insect-resistant, rain-proof protection structure, Equipped with power socket, multiple passive signal output interface, marked signage boards and etc. which are easy for using.
      Motor drive mechanism equipped with CY40 series intelligent tap position monitor, that means the tap position and electrical operation can be displayed in the control room, and can be connected with computer to achieve the self control of system and so on.
 
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