conclusion dc generator experiment

Experiment No: 3 Characteristics of DC Generators 1 Aim To obtain † Open circuit and External characteristics of separately excited (S.E.) DC generator † External characteristics of shunt generator 2 Theory 2.1 Basic Theory of Electromagnetic Power Conversion: Electric machines convert electrical energy to mechanical energy and vice-versa, as shown in Fig.1.

Experiment #8. COMPOUND DC GENERATORS. The purpose of this experiment is: To obtain the characteristic curves of generator voltage vs. load current for overcompound, flat, undercompound and differential-compound DC generators. To understand how the series and shunt field fluxes interact to produce the various compound generator terminal voltage ...

A DC generator, whose schematic is shown in figure 8.1, is an electrical machine which converts the mechanical energy of a prime mover (e.g. DC motor, AC induction motor or a turbine) into direct electrical energy. The generator shown in figure 8.1 is self exciting. It uses the voltage E a generated by the machine to establish the field current ...

2.3 DC generator Experiment Set-up Figure 4: This is how the experiment was setup for DC Generator.[4] 3. 3 List of Equipment used We used the following equipment in order to take the accurate measurements :- Universal Power Supply. ... In conclusion, we did three main parts in our experiment. First, for the DC Shunt motor and

DC motor Fall15 Revised: November 4, 2016 9 of 21 The DC motor creates torque from electrical excitation of two magnetic circuits, the field and the armature. If the process is partially reversed by electrically exciting the stator mounted field and providing torque from an external prime-mover, the machine becomes a generator. As

Display the Metering application. 5. Set up the separately-excited dc generator circuit shown in Figure 5. Notice that. no electrical load is connected to the generator output. 3. Electrical Technology (DET 213) Laboratory Module. Figure 5 Separately-Excited DC Generator Coupled to a Prime Mover (No electrical.

Experiment #9 DC MOTORS The purpose of this experiment is: To examine the behavior of DC Shunt and Compound Motors under load. PROCEDURE: 1. A DC generator is used to provide a dynamic, variable load on the shaft of the DC motor in the dynamometer cradle. Connect the DC-generator as shown in figure 1. 2. Connect the DC-Shunt motor as shown in ...

Background Figure 4.1: Schematic diagram of a self-excited DC generator. A DC generator, whose schematic is shown in figure 4.1, is an electrical machine which converts the mechanical energy of a prime mover (e.g. DC motor, AC induction motor or a turbine) into direct electrical energy. The generator shown in figure 4.1 is self exciting.

This experiment explores dc machines, with a particular focus on generator behav-ior. Previous experiments have used a dc machine as a load or source for other motors or generators. In this lab, the emphasis will be on the dc side of the dynamometer. A synchronous motor will be used as the prime mover. 1 Introduction DC machines may be used as ...

Experiment with Motors and Generators Science Projects. (8 results) Discover how motors work and build your own with circuits, magnets, or even ocean power. Experiment with ways to increase the electricity (or even speed!) your motor generates. Build a Simple Electric Motor! When you think of a motor, you may immediately think of a car, but you ...

control of the switch-mode dc converter was discussed in experiment - 2 and the same will be used. Use the model for the two-pole switch-mode converter (Fig 3.1) OR download the file ... Couple the DC generator and DC motor under test (MUT). Connect the armature of the DC Motor to the output of two converter poles A1 and B1. ...

Calculations: Motor input= Vin x Iin watt. Generator output =Vout x Iout Watt. Note: It is assumed that both machines coupled have completely same efficiency so. Generator efficiency = output of generator / input of generator. And. Motor Efficiency= output of Motor / input of Motor. And the output of motor = input of generator.

A shunt generator can be made to supply a constant voltage by connecting a few turns in series with the armature terminals. This arrangement is known as a compound generator. There are two types of connections for connecting a series and shunt windings in a compound generator. If the connection is in such a way that flux produced by both series ...

The external characteristic of a DC compound wound generator is drawn between the terminal voltage and the load current. Adjusting the number of amp-turns in the series field winding yields different external characteristics: Over compounded: Terminal voltage increases with load current. Decrease in load leads to a decrease in terminal voltage.

Practically, direct current generator comprises of armature circumference that rotates (rotor) and field circumference connects to field polar (stator). TYPES OF DC GENERATOR (a) DC generator usually is classified by the ways of how its field is excites. Hereby, DC generator comprise two main types that is: 1. Separately-excited generator; 2.

From the book Electrical Engineering Experiments. Experiment 8 No-Load Test on a Separately Excited D.C. Generator (Magnetization Characteristic) was published in Electrical Engineering Experiments on page 33.

View PDF. Experiment 4 The DC Compound Generator Muhammad Al-Ariff Bin Selamat (112215), Muhammad Azfar Amin Bin Ahmad Mokhtar (113690), Siti Atiqah Binti Abdul Halim (112228), Pauline Chuo See Sze (112225) School of Electrical & Electronic Engineering - Universiti Sains Malaysia f Abstract- This experiment is carried out to understand many ...

DC generator is that curve which gives the relation between field current and the armature terminal voltage on open circuit. When the DC generator is driven by a prime mover then an emf is induced in the armature. The generated emf in the armature is given by an expression is constant for a given machine.it is replaced by K in this equation.. Here, φ is the flux per pole, P is the no. of ...

Fig. 3.1. Theory: -. The open circuit characteristic or the magnetization characteristic of the DC generator gives the relationship between flux per pole and exciting current or the field m.m.f. per pole. If the machine is run at constant speed on no load, the induced e.m.f. is proportional to the flux per pole (and hence the field current ...

Aim: To perform a load test on a DC shunt generator, here is the experiment. So that we can illustrate its internal & external load characteristics. The required components of this experiment includes M.C type Ammeter (0 to 20mA & 0 to 2mA, M.C type Voltmeter (0 - 300 Volts), Wire Wound Rheostats Wire (0 to 370 ohms/1.7 A) & Digital ...

4. Connect the Wavetek to the Scope. Using a BNC cable, connect SYNC OUT on the Wavetek to the EXT TRI at the lower right of the Scope. Using a BNC T fitting, connect OUT on the Wavetek to the channel 1 of the Scope and also connect the OUT to the right-most pair of inputs of the DMM with a banana plug connector.

The Function Generator: In previous experiments in this course, you have only used the DC power supply to provide voltages or currents to your circuits. In order to obtain time-varying or AC signals, you will need to use a new instrument, the HP 33120A Function or Waveform Generator.

The general procedure is detailed below: 1. The motor generator set is arranged and connected to the dc supply as shown in the figure . 2. The generator is run up to its normal speed by means of the motor . 3. The speed is kept constant for all reading by varying the motor supply voltage. 4.

This paper proposes a fast dynamic DC-link voltage control strategy for dual three-phase permanent-magnet-assisted synchronous reluctance starter/generator (DTP-PMa-SRS/G) system. First, the model of a DTP-PMa-SRS/G is analyzed considering its asymmetric structure. A power balance strategy is adopted to solve the coupling problem between two sets of windings. Then the power model of the ...