D. C. Motors

Manufactures of D. C. Motors & Drives for Rubber, Paper, Textile, Plastic, Cement & Chemical industries Motors produced by Ramson and Ramson are designed in accordance with ISO 9002 regulations to ensure quality products with optimal functionality. Before, during, and after production. Our motors are subject to intense quality controls and testing methods to ensure reliability. Design FMEA and Process FMEA are extensively used to secure efficiency and dependability. The catalog products listed below will guide you to specifications and information on motors. Remember that these numbers are simply examples of what Ramson and Ramson can do for you. Once an inquiry is placed, each motor will be engineered to meet your specific requirements. Click on a category below to examine general specifications and engineering information on any of our products. A.C. DRIVEAC VARIABLE FREQUENCY INVERTER ( A.C. DRIVE ) CLICK HERE FOR LARGER VIEWTECHNICAL SPECIFICATION SCREEN PROTECTED DRIP PROOF TYPEDIAGRAM SCREEN PROTECTED WITH COOLING TYPEDIAGRAMTOTALY ENCLOSED FAN COOLED FOOT MOUNTED TYPE DIAGRAMTOTALY ENCLOSED FAN COOLED FLANGED FOUNTED TYPE DIAGRAM Basically, AC Induction Motors are constant motors.Its speed N is given by the formula: N=120/P The speed can be varied either by changing the frequency or the number of poles. Since, the number of poles are predetermined, the acceptable method for steeples speed variation is by changing the frequency of the input power. Reduction of frequency at the rated voltage saturates the motor. In order to effectively get variable speed with full load torque, the voltage needs to be reduced along with the frequency. Since, the magnetic flux and hence the torque in the AC induction motor is proportional to the voltage-to-frequency ratio, it is necessary to keep v/f ratio as constant throughout the speed variation range. Technology:AC Drives are designed to get constant v/f ratio. The CPU selects the desired voltage & frequency for a set speed & keeps this ratio constant by using the latest & world's best technology of Multi Pulse Width Modulation. Highlights : Isolated power supply. Fully isolated control circuit. Plug in Control connections for easy installation.Excellent control response. Inherent soft starts. High starting torque available. Independent adjustment of acceleration and deceleration.Safe access to present & diagnostics for operational adjustment. Flexible system interface circuitry for process automation & auto Feed Back.Specially design for tropical Indian condition. Power efficient energy saving device.