Quick Answer: Which DC motor has high torque?

Series wound DC motors are best for applications that require high startup torque, without the need for speed regulation. Like a shunt motor, as a load is applied to a DC series motor, the motor speed decreases, which reduces the back EMF and increases the net voltage.

What is high torque DC motor?


“HUMSER Gear Motor Series HT-M075 Heavy DC Geared Motors for Industrial and Mechanical Project Applications. … Voltage – 12 • Current – 500 mA to 2A (max) Motor with heat sinker. This motor is carbon brushed motor. High quality copper winding. ”

What type of AC motor has the highest starting torque?

Capacitor Start/Capacitor Run Motor

This type of motor has higher starting, lower loaded currents, and higher efficiency. The drawback is the expense required for two capacitors and a switching device.

Which of the following motor has the highest torque?

Which of the following motors has highest starting torque ?

  • A. Repulsion motor.
  • Shaped pole motor.
  • Capacitor-start motor.
  • Split-phase motor.
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Which motor has high starting torque and staring current DC?

DC Series motor has highest starting torque. 3-phase Induction motors have highest staring current, 5 to 7 times full-load current and develop about 2 times the full-load torque. Plain Synchronous motors do not have any starting torque. DC series motor has high starting torque .

How do you increase the torque of a DC motor?

To increase the torque … that a bit harder. All you can do, electrically (as you can do it mechanically via gears), is to reduce the source impedance to maximise the current that can be delivered for a given stator impedance. Rewind it with more turns of thinner wire.

How do you calculate the torque of a DC motor?

  1. T g = armature or gross torque ( N-m ) = ( Force × radius )
  2. r = radius of the armature in m.
  3. N = speed of the armature in r.p.m. = N / 60 r.p.s.


What is motor torque formula?

Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM) Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488.

Which has more torque AC or DC?

AC motors are generally considered to be more powerful than DC motors because they can generate higher torque by using a more powerful current. However, DC motors are typically more efficient and make better use of their input energy.

Does induction motor has high starting torque?

Slip ring induction motor has high starting torque. Because slip ring is connected through the resistance. When the supply is on the resistance is increases the phase difference is decrease due to this starting torque is increases.

Which DC motor has maximum self loading property?

Which DC motor has got maximum self-loading property? Explanation: A differentially compound DC motor, flux reduces so sharply at small increase in load at higher values of load.

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Which motor is constant speed?

Induction Motor – Constant speed with continuous operation – Stop in 2 sec. when switched off – Overrunn: 30-40 times – Possible for reverse rotation Suitable for Uni-directional … DKM Motor Co., Ltd.

What controls the speed of a DC motor?

Thus, the speed of a DC motor can be controlled in three ways: By varying the supply voltage. By varying the flux, and by varying the current through the field winding. By varying the armature voltage, and by varying the armature resistance.

What are the advantages of DC series motor?

Advantages of DC Series Motor

  • Dc series motor have good accelerating torque.
  • Dc series motor have a relatively huge starting torques.
  • Dc series motor delivers high torque during an overload.
  • The dc series motor draws less current and power from the source compared to a shunt or compound motor.

Which motor has high starting current?

The induction motor draws a high starting current as compared to the running condition. The starting current of the induction motor is about 5 or 6 times the motor full load current.