DC Short Shunt Compound Motor

Brief Introduction

Speed regulation of long shunt dc motor:

(1) Change the power supply voltage-the advantage of voltage regulation and speed regulation is that the speed regulation performance is good, the speed regulation range is wide, and smooth stepless speed regulation can be achieved. There is no energy consumption during the speed regulation process, the hardness of the mechanical properties remains the same, and the stability is good.The disadvantage is that the speed can only be lowered, the equipment is more complex and the cost is high.

(2) Change the armature loop resistance-the advantage of string resistance speed regulation is that the required equipment is simple and the cost is low.The disadvantage of DC short shunt compound motor is that the speed regulation performance is poor, the mechanical characteristics become soft, there is stepless speed regulation, the speed can only be reduced, the energy consumption is large, and the economy is poor.Note that the speed regulating resistor can be used to start, but the start-up resistor cannot be used for speed regulation.

(3) Change the main magnetic flux-weak magnetic speed regulation for DC short shunt compound motor, additional resistors are connected in series in the excitation circuit; for series excitation motors, shunt resistors are connected in parallel at both ends of the series excitation windings.The advantage is that it is easy to control, consumes less energy, and can achieve smooth stepless speed adjustment.The disadvantage is that the speed can only be increased, the speed regulation range is narrow, and the hardness of the mechanical properties is slightly reduced.Usually it can only be used as an auxiliary speed adjustment method.

Reversal of DC short shunt compound motor:

(1) Changing the direction of the excitation current is practical for series excitation motors.When reversing, the series excitation winding and the commutator winding should be reversed at the same time.

(2) Changing the direction of the armature current is practical for other excitation or parallel excitation motors.When reversing, the armature winding and the commutator winding should be reversed at the same time.

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

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