What is multi motor drives?
a group of electric motors that are interconnected by a common control system and drive the working members of a machine or installation (for example, rolling mills, paper machines, composite metalworking machines, and walking excavators).
What are the advantages and disadvantages of group drive shaft drive )?
Group Drive :
- Any Fault that occurs in the driving motor renders all the driving equipment idle.
- Efficiency low because of losses occurring in the energy transmitting mechanisms (Power loss)
- Not safe to operate.
- Noise level at the working spot is high.
- Flexibility.
What is advantage of group drive?
Advantages : Cost of group drive is less for given capacity of load. cost of one motors of given capacity is less than the cost of many motors of the same capacity. Group drive has high overload capacity.
What are the application of multi motor drives?
Multi-motor driven systems are more and more widely used in the field of electric engineering vehicles, as a result of the road conditions and the variable load of engineering vehicles, makes multi-motors synchronization coordinated control system as a key point of the development of the electric vehicle drive system.
What are limitations of group drive?
Disadvantages of Group Drive Due to less load on the motor, the motor works at low capacity, due to which its efficiency and power factor are low. (iii) In group driving, a separate motor cannot be used because the capacity of the motor which is used is determined in advance based on all the machines.
What are the disadvantages of group drive electric machine is?
Disadvantages of Group driver electric drive The noise level at the working site is quite high. idle. A considerable amount of power is lost in the energy transmitting mechanism. If all the machines driven by the line shafi do not work together, the main motor runs at reduced load.
Which drive is not suitable in multi motor drive?
(vi) The CSI is not suitable for multimotor drives. Hence each motor is fed by its own inverter and rectifier.
What is Group drive?
A group drive is a place for groups, projects or collaborations of researchers to share files and data among themselves.
Which type of drive can be used for hoisting machinery?
| Q. | Which type of drive can be used for hoisting machinery |
|---|---|
| A. | AC slip ring motor |
| B. | Ward Leonard controlled DC shunt motor |
| C. | DC compound motor |
| D. | Any of the above. |
What is meant by group drive?
Which of following is not an advantage of group drive?
Explanation: Group drive does not provide constant motor speed.
What is meant by group drive give an example?