Types of D.C. Generator

Practically the power stations are divided into three-phase alternative current. A huge part of this power is used in the form of alternating current in industry, for lighting and domestic needs. With the help of converters, A.C. is converted into D.C. which provides advantage to the industries.There is a wide use of such installations.

As chief sources of power, D.C. generators are primarily used in self-contained plants such as automobiles and air planes, for electric arc welding, train car lighting, ill sub- marines, etc.

As per the method of excitation, D.C. generators are categorized as follows:

  1. Separately excited generators,
  2. Self-excited generators.

3.1.1. Separately excited generators

These are the type of generators whose field magnets are energized from a self-governing external source of D.C. current. The following figure represents such a generator:-

3.1.2. Self-excited generators

The field magnets of these generators are energized by the current they produce. Due to outstanding magnetism, there is always present some flux in the poles. When the armature is rotated, some e.m.f. and thus some induced current produced which is partly or fully passed through the field coils thereby strengthening the pole flux.

Further, self-excited generators can be divided, in accordance with how the field winding is connected into generators, as follows:

(i)   Shunt wound generators

(ii)  Series wound generators

(iii)  Compound wound generators:

  1. Short shunt
  2. Long shunt
  1. Shunt wound generators: Refer the figure given. We can see that in these generators, the field windings are connected across or in parallel with the armature conductors, producing the full voltage of the generator across them.

Important relations: The following figure refers to these important relations-

(iv) Power developed = EgIa

(v) Power delivered = VI

Where,Ish = shunt field current;

I (or Il) = load current,

Ia = armature current,

Ra = armature resistance,

Eg = generated e.m.f.

Rsh = shunt field resistance, and

V = terminal voltage.


Links of Previous Main Topic:-

Links of Next Electrical Engineering Topics:-


We’re rated Excellent

4.7 out of 5 based on 39 reviews

Order Homework Help
Click or drag files to this area to upload. You can upload up to 5 files.
We do not share numbers with 3rd party.

Join over 200,000+ happy students served our tutors

Take a look at independent reviews to see what users have to say about our homework help service.


overall rating
on LiveChat


of users
recommend service

How It Works

1. Get Price Estimate.
1. Get Price Estimate.


Send us your homework. Mention deadline & upload relevant files.

2. Pay Securely.
2. Pay Securely.


We accept all major credit cards. Partial payments also accepted.

3. Get Solutions.
3. Get Solutions.


Receive error-free, step-by-step solutions in your email.


Why use Myhomeworkhelp?

We provide you with the homework help from top experienced experts. Your satisfaction is a priority to us. Get better grades or money-back. It’s that risk-free! Furthermore, everything about you is kept confidential.

How quickly can you help me with my homework?

We take pride in our 24×7 homework help services. Which means, student can approach us anytime, to get help even on short notices. As short as few hours! And yes, we provide complementary plagiarism-free report.

How much will it cost?

We do not have a monthly fees or minimum payments. Each homework task is quoted a unique price. It is based on tutor’s estimate of the time it will take them to complete your task. There are no obligations, and you are free to discuss the price quote with the tutor.
We do accept partial payment (subject to our policy) to start working on your assignment help. You can pay the remaining amount when your task gets completed. No pressure of up-front payment. No hidden costs.

Who are your tutors?

All our experts are highly qualified professionals – holding at least Master’s degree of their respective fields of expertise. We are very selective and choose only the best qualified tutors for each academic subject. All tutor applicants must provide academic transcripts for each degree they hold, and are tested and screened carefully by our staff.

I have privacy concerns. Can I trust you?

Myhomeworkhelp has completed over 250,000 homework help tasks over the last 12 years. But do not take our word for it! See our here and on Trustpilot. Furthermore, everything about you is kept confidential. Your credit card information is not stored anywhere, and use of PayPal relies on their secure payment networks. Your identity, payment and homework help are in safe hands.

Check our video

Our Reviews