INNOVATIVE TECHNOMICS EUROPE

    Supplier of starting solution for your Low and High voltage electrical motors

     
                   RC (Rotor Controler), ASR (Automatic Slippring Regulator)  
 

 Home

 Products

     Soft Starter

     Slippring Starter

     DFCL

 Technology

 Applications

 References

 FAQs

 Contact us

 

  
Slippring starter
      
 

Our Slippring Starter work on the principal of a magnetic amplified resistance which is directly dependant of the rotor current frequency.

The goal is to maintain a constant motor torque during a start, to have this it is necessary to keep constant the active componante of the rotor current, so to reduce the starter resistance with the increasing motor speed.

Our Slippring Starter respond exactly and naturally to this requirement without any external control or mouving parts.

The control and variation of the required resistance in serie with the rotor is done with the rotor current frequency so directly by the motor speed.

 

 

 

                            
 
Advantages - Comparison
  
 

 

RC / ASR Slippring Starter

Liquid type

Grid resistance

Resistance type

Magnetically amplified resistance

Electrolyte

Resistance wire

Resistance variation mode

Skin effect responding to rotor frequency

Movement of electrodes through aux. motor and lead screw

Resistance cutting through contactors

Stepless

Stepless

Step cutting

Respond

In congruence with the rotor speed

Time dependant

Resistance variation response

Reset to maximum resistance

Immediate

Reverse movement of electrodes.

Malfunction of position limit switch can lead to zero resistance starting.

Immediate by contactors drop out

Repeatability

Excellente

Evaporation of water changes electrolyte concentration and leads to variation

Good

Maintenance

Rugged magnetic design is maintenance free

Periodic topping up of electrolyte.

Replacement of electrodes.

Resistance wires are prone to failure

Pratically no maintenance

Electrode moving mechanism gets rusted and jammed

 

Leakages

Dry type

Electrolyte leakages

Oil leakages
                       		 
   
   
         
 

14 Rue de la Toscane  44240 La Chapelle sur Erdre - France  | Ph. : +33 2 4056 2798  Fax. : +33 2 4074 9523