CJSC NTiO Products >> Brushless drives >> Welding engineering >> Gear motor with a controlling system for electrode feed while underwater welding at depth of up to 200 meters

The proprietary design, no analogues

The gear motor with a controlling system for electrode feed while underwater welding at depth of up to 200 meters

 The SRM-80-215-IE brushless drive consists of the PM-108 permanent magnet synchronous motor and a control module integrated into a common case. It is intended to change the UL-061 and UL-062 general purpose brushed motors used for the UMP-II high voltage contact system disconnect switch drives.

In comparison with the UL-061 and UL-062 brushed drives the SRM-80-215-IE brushless drive has the following advantages:

 -          Improved reliability due to the absence of a commutator brush assembly

 -          Higher efficiency in comparison with the brushed DC motor

 -          Better dynamic behavior due to an electronic control system which enables the motor start with a constant torque up to the speed equal to the nominal one  

 -          Reduction of probability of the stator winding breakdown due to individual stator coils

 -          Overload motor protection my means of a control module

 

The motor  develops a  starting torque of 2 Nm at the nominal supply voltage deviation between +10% and -25%.  

  The temperature range when in operation is between -40С and  +60С.

  Today the SRM-80-215-IE electric drives have been in a trial operation as a part of the UMP-II high voltage contact system disconnect switch drives.

 The specifications of the SRM-80-215-IE electric drive are given below:

Nominal voltage, V – 48

Rate speed, rpm - 100

Torque rating, Nm – 4

Peak torque, Nm – 8

Weight, kg – 5.5

Refrigeration method - ICOO40

IP Code – IP58