Series DC motors are used in hoisting or winching operations because of their characteristic very high starting torque.
What is hoist motor?
The hoist motor as container cranes drive using large energy at the container terminal. Hoist motor of container crane serves to move the spreader in the direction up or down. Worked continuously during loading and unloading operations. The CC hoist motor is the largest motor, mounted on machinery house.
What type of motor is used in crane?
Conventional AC operated crane drives use slip ring induction motor whose rotor windings are connected to power resistance in 4 to 5 steps by power contactors.
Which of the following motor is used in lift cranes hoist and electric train?
Synchronous motor. For crane travel, trolley travel and boom hoist of traveling crane requires high starting torque and constant speed in operation. Hence slip ring induction motor is preferred. 07․
Do cranes use DC motors?
Many older cranes operate on DC power because when those controls were built, DC was easier to supply and provided the power load necessary to drive large, robust pieces of equipment. But as technology advanced AC power also advanced.
Why is the DC motor preferred over AC motor?
D.C. motor is preferred over an A.C. motor when we need variable speed operation because As in DC series motor field winding and armature winding is in series. So whenever armature current changes field current also changes as they are same due to which its torque changes rapidly and we get a variable speed.
Which DC motor is generally?
Explanation: DC series motor is used where high starting torque is required, thus in cranes and hoists DC series motor is used widely.
Which type of motor is used in washing machine?
The majority of washers have universal brushed motors with Triode Alternating Current switch (TRIAC) control. However, with the advent of new electronic devices, these drives are becoming out-of-date. A new generation of washing machines will be designed with brushless three-phase motors.