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Contact SupplierThe Device is Composed of Resistor, High-voltage Soft Start Controller, Isolating Cabinet, Changeover Cabinet and Star Point Controller. We Supply in Full Sets. the Device Can Start Motor and Play a Protected Action On Motor Start Process, When Connect It in Motor Start Circuit.
  this Resistor is Composed of Three Phase Balancing Resistor Which have Negative Temperature Characteristic, When the Current is Past Through Resistor, the Temperature of Resistor Gradually Increase and Its Resistance Gradually Decrease, Then the Terminal Voltage of Motor Gradually Raise and the Start Torque Gradually Increase, So the Motor Can Start Smoothly and the Start Current Can Be Decreased.