qr code vb.net free Magnetic Coupling. Transformers in Visual Studio .NET

Make USS Code 128 in Visual Studio .NET Magnetic Coupling. Transformers

CHAPTER 10 Magnetic Coupling. Transformers
Code-128 Reader In .NET Framework
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET applications.
Paint Code 128C In .NET
Using Barcode maker for .NET framework Control to generate, create Code 128 image in Visual Studio .NET applications.
components. In doing this, we ll use rms values of voltage and current instead of peak values, and thus, letting " Vpri rms vector value of induced voltage appearing in PRIMARY coil, and " Vsec rms vector value of induced voltage appearing in SECONDARY coil, in the primary coil, " " " Vpri !L1 I1 908 !M I2 908 in the secondary coil, " " " Vsec !M I1 908 !L2 I2 908 " " where notation of the form X I 908 is used to denote that a vector voltage drop X I " by 908. However, since we re representing vector quantities by leads the current vector I complex numbers, all we need to do, to rotate a vector through 908, is to multiply the vector by j (as discussed in connection with eq. (196) in Chap. 8). Thus the preceding two equations become " " " Vpri j!L1 I1 j!M I2 " " " Vsec j!M I1 j!L2 I2 378 379
Scan Code 128A In .NET Framework
Using Barcode reader for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Generating Bar Code In Visual Studio .NET
Using Barcode printer for VS .NET Control to generate, create bar code image in .NET applications.
in which !L1 and !L2 are the inductive reactances of the primary and secondary coils, each considered separately (as if they were not part of the transformer), and where the quantity !M is measured in ohms and called the mutual reactance. Equations (378) and (379) are expressions connecting the four inductive voltage drops present in a transformer. We ll make use of these equations in section 10.3, to derive the basic equations for the sinusoidal steady-state analysis of coupled circuits. Before going on to the next section, however, there are some more points we should mention regarding the polarity dots associated with a transformer. First, it should be noted that, in some simple problems involving only a single transformer, in which we need to nd only the magnitude of the secondary current, it will not be necessary to be concerned about polarity dots at all. In such a case we can simply assume that the primary and secondary currents ow into like-marked terminals. However, in more complicated cases, in which, for example, we have two or more transformers having a common secondary current, then we must take the dot-marks into account. This can be a problem, as it may not be possible to actually see the senses in which the primary and secondary coils of a transformer are wound (because the windings may be covered with a strong tape, used both to insulate the windings and to keep them rmly in place). If the manufacturer has not dot-marked such a transformer, this can be done by experimental means, by the user, in several ways. One such way is explained with the aid of Figs. 220 and 221, as follows, in which V is a constant value of ac voltage and I is the reading of an ac ammeter.
Decode Bar Code In VS .NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Painting Code-128 In Visual C#
Using Barcode encoder for Visual Studio .NET Control to generate, create Code 128 Code Set A image in .NET framework applications.
Fig. 220
Make Code-128 In VS .NET
Using Barcode maker for ASP.NET Control to generate, create ANSI/AIM Code 128 image in ASP.NET applications.
Code 128A Encoder In VB.NET
Using Barcode generator for .NET framework Control to generate, create Code 128 Code Set A image in VS .NET applications.
Fig. 221
Making DataMatrix In .NET
Using Barcode drawer for .NET Control to generate, create Data Matrix image in .NET applications.
Printing Barcode In VS .NET
Using Barcode printer for VS .NET Control to generate, create bar code image in .NET applications.
CHAPTER 10 Magnetic Coupling. Transformers
Make Barcode In VS .NET
Using Barcode drawer for .NET framework Control to generate, create bar code image in .NET applications.
Encoding USPS PLANET Barcode In VS .NET
Using Barcode creation for Visual Studio .NET Control to generate, create USPS Confirm Service Barcode image in VS .NET applications.
Note that in the test setup the primary and secondary coils are connected in series in both gures, and hence, in each gure, the primary current is equal to the secondary current. Now, in the gures, let the arrows denote the direction of current at a particular moment. Notice that the direction of the primary current is the same in both gures, but the secondary current ows in opposite directions. This means that in one of the gures the mutual magnetic e ects of the primary and secondary currents will be ADDITIVE, while in the other gure they will be SUBTRACTIVE. Since the total reactance seen by the generator is greater in the additive case than in the subtractive case, it follows that the ammeter will read a smaller value of current in the additive case than in the subtractive case. With these points in mind, the actual test procedure is as follows. First, to one of the primary leads attach a tag having a dot, then attach tags to the secondary leads, one labeled a and the other b, so that we have the condition shown in the gures. Now apply the ac voltage V rst to the setup of Fig. 220, and then to that of Fig. 221. Upon doing this, suppose it is found that I1 is smaller than I2 ; this would mean that current owing into the b terminal has the same e ect, magnetically, as current owing into the dot-marked terminal, and thus terminal b should be marked with a dot. Or, if the opposite is found to be true (I2 less than I1 ), then terminal a would be marked with a dot.
Drawing Code 39 Extended In Objective-C
Using Barcode maker for iPad Control to generate, create Code 3 of 9 image in iPad applications.
Data Matrix Encoder In None
Using Barcode printer for Excel Control to generate, create Data Matrix 2d barcode image in Microsoft Excel applications.
Printing Code 39 Full ASCII In None
Using Barcode drawer for Microsoft Excel Control to generate, create Code 39 image in Excel applications.
Bar Code Scanner In .NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications.
Bar Code Printer In None
Using Barcode creation for Font Control to generate, create bar code image in Font applications.
Generating UPC-A In Objective-C
Using Barcode encoder for iPhone Control to generate, create UPC-A image in iPhone applications.
USS Code 39 Decoder In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
Barcode Recognizer In Visual Basic .NET
Using Barcode Control SDK for Visual Studio .NET Control to generate, create, read, scan barcode image in .NET applications.
Copyright © OnBarcode.com . All rights reserved.