Crane resistors units are connected to the rotor circuit of a wound-rotor motor in order to change shaft speed and torque. Regulation is performed by switching specially fitted resistor groups and variation of total resistance of the rotor circuit.
The standard DVESLY-1M-ShR resistor cabinet includes up to seven resistor units. If more resistors are required, installation of an additional cabinet is necessary. For low-power cranes integration of resistor units of all mechanisms into a common resistor cabinet is possible. Calculation of resistors is performed taking into account rated parameters of a motor and mechanism. Our engineers calculate and match resistors according to crane load parameters and installation space available.
If the DVESLY-1M-ShR resistor cabinets are ordered with crane electric drive system DVESLY we supply complete resistor cabinets optimized for operation with our equipment.