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What type of dc motor is suitable for variable torque operation?
Wiki User
∙ 8y ago
A shunt-wound DC motor can maintain its speed well when the load torque varies.
Wiki User
∙ 8y ago
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What motor is NOT suitable for use as a DC machine?
What motor is NOT suitable for use as a DC machine?
What does an AC drive do and what is it used in?
A variable-frequency drive (VFD) or adjustable-frequency drive (AFD), variable-voltage/variable-frequency (VVVF) drive, variable speed drive (VSD), AC drive, micro drive or inverter drive is a type of motor drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage. Wuxi JACT Electric Co,High quality frequency AC drive, 1、Advanced vector motor control algorithm，high performance and high precision motor control;open loop V/F & SVC control，closed loop FVC control. 2、The low-frequency large-torque: 150% at 0.5 Hz for SVC;180% at 0 Hz for FVC. 3、Wide power design (0.7kW-710kW) and support various motor configurations, Support a variety of encoders, can achieve high-precision closed-loop control. 4、It integrates speed control, torque control and position control, and can be widely used in synchronous and asynchronous motor control. 5、Independent air duct design, long life and large air volume cooling fan to improve the cooling efficiency of the inverter and ensure the stable operation of the inverter.
What is the maximum torque than an induction motor can develop known as?
Gross Torque
Pull-out torque of induction motor?
The pullout torque is the maximum torque a motor can achieve. Also known as breakdown or peak torque. It occurs at the point where, the increase in the rotor current is exactly balanced by the decrease in the rotor power factor.
Is torque and current proportional?
Sometimes, for example in a separately excited dc motor. But in a series-wound dc motor the torque is proportional to current-squared, which gives the motor a very high starting torque and this makes series motors very popular for traction.
Which of the following Dc motor is suitable for high starting torque?
capacitor start motor
What type of motor is variable torque produced by varying the resistance of the secondary circuit?
Wound-Rotor
Explain Speed mode torque mode in variable speed drives in detail?
Torque mode in variable speed drives is where the drive adjusts its torque according to the input. The speed/velocity mode is where the input is used to control the motor's RPM.
How you can improve the starting toque of the motor through variable frequency drive?
set the respective parameter for torque in the VFD.
What are the advantages of induction motor?
1. Induction motor has high starting torque, therefore use for operate pump which need high starting torque. 2. Induction motor operate on variable speed. 3. It can be used as generator when speed of motor is higher than synchronous speed.
How do variable speed motors work?
A variable sped drive is sometimes also known as a variable frequency drive. These drives are used in electro-mechanical drive systems to control AC motor speed and torque.
Need of drives in motor?
Drives - I assume you are referring to Variable frequency Drives. The drives are useful when a motor needs to rotate at different speeds when in operation with out stopping it.
How do you calculate hydraulic motor torque?
how to calculate hydraulic motor torque
Which motor is suitable for tractions?
DC series motor is suitable for the tractions
What motor is NOT suitable for use as a DC machine?
What motor is NOT suitable for use as a DC machine?
What is torque percent in electrical motor and unit of torque?
In SI, torque is measured in newton metres (N.m). The percentage torque varies according to the design and specifications of a motor.
Why series motor used in traction application?
becoz of high starting torqe to move train
