Pump Drive Motor

Brief Introduction

The starting principle of a DC pump drive motor is the same as that of an AC motor. When a DC motor starts, it should also meet two basic requirements:

(1) It must have a sufficiently large starting torque;

(2) The starting current cannot exceed the safe range.At the moment the DC pump motor is started, the rotor has not yet rotated, and the reverse potential has not yet been established (E=0), that is, it is directly started at the rated voltage. At this time, the starting current is I st=U/R A.Since the resistance R a of the DC motor armature winding is very small, the start-up current I st is very large, generally as high as 10 to 20 times the rated current I n, which seriously exceeds the start-up current requirements for motor commutation.At the same time, excessive armature current will inevitably produce a large starting torque, causing the motor and the machinery it is dragging to suddenly suffer a huge impact, thereby damaging the pump drive motor, transmission mechanism and production machinery.

Therefore, the size of the starting current must be limited.Generally, the method of connecting the start-up transformer (multi-stage start-up) in series in the armature circuit is used to limit the start-up current, so that the start-up current I st= (1.5～2.5) I N.

Main Technical Parameters

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC and NEMA installation dimensions available

• Customizable outlook and dimensions

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Armature

• 99.9% pure copper bar for armature to ensure the output power and efficiency

• Excellent insulation system with 5 more processing flows

• All the copper bars are fitted in by handwork to ensure all slots are full and avoid any possible flaw.

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Winding:

• All windings are made of pure copper to assure induction efficiency

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Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

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Package and delivery

• All motors will be packaged well before delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

Cement

Power Station

Pump

Sugar

CHOOSE SIMO, CHOOSE QUALITY!

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