answersLogoWhite

0


Best Answer

in case of cumulative generator series field flux and main field flux are of same direction and in case of a differential compound generator series field flux and main field flux opposes each other.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

CUMULATIVE COMPOUND MOTOR

It is one in which series field is so connected that it assists the field due to shunt winding.The armature torque is increased under heavy load at starting.As the load increases,the speed decreases in the same way as in series motor.When the load is increased suddenly the shunt field prevents the motor from speeding up beyond the safe value.

DIFFERENTIAL COMPOUND MOTOR

It is one in which winding is so connected that the field due to it opposes that due to shunt winding.It tends to keep the speed constant.When starting up the motor,the series windin is required to be short circuited otherwise the series field winding would rise to its full value before shunt field.This will cause the motor to start in the wrong direction,at high speed.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the difference between cumulative and differential connections of dc compound motor or generator?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the type of generator protection to protect against unequal phase current?

differential protection


What are the application of differential compound generator?

Differential compounded generators are used in Ward Lenard motor generator loops. The shunt fields on these generators are separately excited and when the shunt field polarity is reversed by the controller the series field helps drive the generator voltage to zero thus aiding in the reversal of current.


Dear all what direct consequences can be from Current transformer on generator with respect to differential protection relay?

CT's are used as inputs to the differential. If the CT is bad, or it is not wired to the differential correctly, it will cause differential current to be seen by the relay, resulting in a trip.


Equalizing connections are required when paralleling two?

Equalizing connections are required when parallelingtwo compound generators and paralleling two Series generator .


What is the fundamental difference between a battery and a generator?

the fundamental difference between a battery and a generator is that a battery uses chemicals


What are the Applications of differential compound?

Differential compounded generators are used in Ward Lenard motor generator loops. The shunt fields on these generators are separately excited and when the shunt field polarity is reversed by the controller the series field helps drive the generator voltage to zero thus aiding in the reversal of current.


What is the difference between a commercial power generator and a regular power generator?

The difference between a commercial power generator and a regular power generator is that a commercial one is much expensive than the regular one. It's much better to purchase the regular generator if your not planning to use it for business purposes.


What is difference between generator potential and receptor potential?

it is


What is the difference between a seperately excited DC generator and DC shunt generator?

The difference between a separately excited DC generator and a Shunt DC generator is that for a separately excited Dc generator , the excitation field winding is supplied by an external source different from that supplying the armature while for shunt generator, the excitation field windind is connected in series with the armature and supplied by a single source.


What is difference between function generator and function generator?

To the untrained eye, they appear identical in both form and function.


What is the major difference between a marine generator and an industrial generator?

An industrial generator has some form of built-in cooling system. A marine generator relies on pumping water from the lake or ocean the vessel is in for cooling.


Difference between magneto and ac generator?

magneto is dc