The DC compound motor is a combination of the series motor and the shunt motor. It has a series field winding that is connected in series with the armature and a shunt field that is in parallel with the armature. The combination of series and shunt winding allows the motor to have the torque characteristics of . Cumulative wound motors give high starting torque like a series motor and reasonable good speed regulation. Before variable-voltage supplies became readily available, most d.
The armature and field circuits were therefore designed either for connection in parallel (shunt), or in series. Shunt-wound dc motor. One reason for this is that the field flux remains constant. A constant voltage across the field makes the field independent of variations in the armature circuit. Generally in compound motor both series and shunt field exist.
In this type shunt field is much stronger than series field winding. A compound -wound motor has both a series and a shunt field winding, (i.e. one winding in series and one in parallel with the armature circuit), by varying the number of turns on the series and shunt windings and the directions of the magnetic fields produced by these .
Looking for cumulative compound motor ? Find out information about cumulative compound motor. A motor with operating characteristics between those of the constant-speed and the variable-speed types Explanation of cumulative compound motor. Cumulative compound motor is capable of developing large amount of torque at low speeds just like series motor. However it is not having a disadvantages of series motor even at light or no load.
The shunt field winding produces the definite flux and series flux helps the shunt field flux to increase the total flux level. In long shunt dc compound motor , the shunt field winding is connected across both armature and series field winding. All the characteristics of the compound motor are the combination of the shunt and series characteristic. The dc motor converts the electrical power into mechanical . The compound motor uses both a series field and a shunt field.
This motor is used to combine the operating characteristics of both the series and the shunt motor. The series field of the compound motor permits the motor to develop high torque, and the shunt field permits speed control and regulation. Русско-английский словарь по электроэнергетике. As all we know, there are two kinds of compounded machines, long and short shunts.
The starting torque is higher than in the shunt motor but lower than in the series motor.
Variation of speed with load is less than in a series wound motor but greater than in a shunt motor. DC compound motors are desirable for a variety of applications because it combines the characteristics of a series-wound motor and a shunt-wound motor. On the other han the AC motors in vacuum cleaners are usually universal types. At the same time, the fan imposes sufficient loading to prevent destructive racing.
A long shunt compound motor and a short shunt compound motor can be a. Cumulative type, differential type b. Differential type, cumulative type c. C Motor – MCQs with. Both can be either cumulative or differential type d. Also find here related product comparison. Highlights info row image.
It corresponds to the integrity of the motor unit but cannot distinguish between pre – and postganglioniclesions because the cell body is located in the spinal cord. It can be abnormal with normal SNAPs if the lesion is proximal to the DRG or affecting a purely motor nerve (Figure 5–40). DC series-wound motors are used due to the speed–torque characteristics of these motors.
A series machine has the best traction or starting characteristics and is the most-used motor for traction purposes in vehicles (dieselelectric trucks). Additional Information. ABB Type Designation:. Country of Origin: Germany (DE) Switzerland (CH).
Invoice Description: COMPOUND – MOTOR. Package Level Gross Weight: 3. Order Multiple: piece.