Show dc generator characteristics, Electrical Engineering

Assignment Help:

Q. Show DC Generator Characteristics?

Figure shows schematic diagrams of field-circuit connections for dc machines without including commutating pole or compensating windings. Shunt generators can be either separately excited or self-excited, as shown in Figures (a) and (b), respectively. Compound machines can be connected either long shunt, as in Figure (d), or short shunt, in which the shunt-field circuit is connected directly across the armature, without including the series field.

1764_Show DC Generator Characteristics.png

In general, three characteristics specify the steady-state performance of a dc generator:

1. The open-circuit characteristic (abbreviated as OCC, and also known as no-load magnetization curve), which gives the relationship between generated emf and field current at constant speed.

2. The external characteristic, which gives the relationship between terminal voltage and load current at constant speed.

3. The load characteristic, which gives the relationship between terminal voltage and field current, with constant armature current and speed.


Related Discussions:- Show dc generator characteristics

Compute the kvar and the power factor of the motor, Q. A three-phase balanc...

Q. A three-phase balanced load draws 100 kW at 0.8 power factor lagging. In order to improve the supply power factor to 0.95 leading, a synchronous motor drawing 50 kWis connected

Emi, what is strain gage

what is strain gage

Solve the nonlinear equation and find r, Q. An interface circuit consisting...

Q. An interface circuit consisting of R 1 and R 2 is designed between the source and the load, as illustrated in Figure such that the load sees a Thevenin resistance of 50  betw

How dram’s are different from sram’s, How DRAM's are different from SRAM's?...

How DRAM's are different from SRAM's? Why DRAMs are said to use address multiplexing? Ans Dynamic RAM (DRAM) is basically the same as SRAM except that it recollects data f

Delay line in CRO, why we use delay line in CRO what happens if we not use ...

why we use delay line in CRO what happens if we not use it?

#title.superposition theorem, .coments on the limitation of the superpositi...

.coments on the limitation of the superposition theorem

Common source drain and transfer characteristics of a jfet, Q. Draw the com...

Q. Draw the common source drain and transfer characteristics of a JFET. How are they useful? The graph below shows  variation of the drain current Id as a function of the drain

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd