ssrs barcodelib AC POWER in Software

Paint QR in Software AC POWER

AC POWER
Reading QR Code In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Drawing QR Code ISO/IEC18004 In None
Using Barcode maker for Software Control to generate, create QR Code image in Software applications.
p p In the circuit of Fig. 10-29, va 10 2 cos t and ib 10 2 cos 2t. (a) Find the average power delivered by each source. (b) Find the current in the p resistor and the average power absorbed by it. p Ans: a Pa Pb 80 W; b iR 2 10 cos t 26:58 2 10 cos 2t 63:48 , PR 160 W
Scan QR Code In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
Paint QR Code ISO/IEC18004 In Visual C#.NET
Using Barcode maker for VS .NET Control to generate, create QR Code 2d barcode image in .NET framework applications.
Fig. 10-29
QR Code JIS X 0510 Encoder In VS .NET
Using Barcode creator for ASP.NET Control to generate, create QR Code ISO/IEC18004 image in ASP.NET applications.
QR Code JIS X 0510 Printer In .NET Framework
Using Barcode printer for VS .NET Control to generate, create QR image in VS .NET applications.
A single-phase AC source having e ective value 6 kV delivers 100 kW at a power factor 0.8 lagging to two parallel loads. The individual power factors of the loads are pf1 0:7 lagging and pf2 0:1 leading. (a) Find powers P1 and P2 delivered to each load. (b) Find the impedance of each load and their combination. Ans: a P1 97:54 kW, P2 2:46 kW, (b) Z1 0:244 84:26
Drawing QR Code In Visual Basic .NET
Using Barcode printer for .NET Control to generate, create QR image in Visual Studio .NET applications.
UPC-A Supplement 2 Printer In None
Using Barcode creation for Software Control to generate, create GTIN - 12 image in Software applications.
, Z2 0:043 45:57
Draw EAN / UCC - 14 In None
Using Barcode encoder for Software Control to generate, create EAN128 image in Software applications.
Data Matrix 2d Barcode Drawer In None
Using Barcode printer for Software Control to generate, create ECC200 image in Software applications.
, Z 0:048 36:87
Encoding Bar Code In None
Using Barcode creation for Software Control to generate, create barcode image in Software applications.
Draw UPC - 13 In None
Using Barcode encoder for Software Control to generate, create European Article Number 13 image in Software applications.
A practical voltage source is modeled by an ideal voltage source Vg with an open-circuited e ective value of 320 V in series with an output impedance Zg 50 j100
USS-93 Creator In None
Using Barcode creation for Software Control to generate, create ANSI/AIM Code 93 image in Software applications.
Code 3/9 Encoder In Objective-C
Using Barcode drawer for iPhone Control to generate, create Code 39 image in iPhone applications.
. The source feeds a load Z 200 j100
Code 128C Printer In Objective-C
Using Barcode generation for iPhone Control to generate, create Code 128A image in iPhone applications.
Code 128 Maker In None
Using Barcode printer for Font Control to generate, create Code 128A image in Font applications.
. See Fig. 10-30. a) Find the average power and reactive power delivered by Vg . (b) Find the average power and reactive power absorbed by the load. (c) A reactive element jX is added in parallel to Z . Find the X such that power delivered to Z is maximized. Ans: a Pg 250 W and Qg 200 var, (b) P 200 W and Q 100 var, (c) X 100
EAN / UCC - 13 Scanner In Visual C#.NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET framework applications.
Creating Matrix Barcode In C#
Using Barcode generator for Visual Studio .NET Control to generate, create Matrix 2D Barcode image in .NET applications.
Fig. 10-30
Decoding Code 39 Extended In C#
Using Barcode decoder for VS .NET Control to read, scan read, scan image in VS .NET applications.
Drawing UPC A In None
Using Barcode printer for Online Control to generate, create UPC Code image in Online applications.
Polyphase Circuits
11.1 INTRODUCTION The instantaneous power delivered from a sinusoidal source to an impedance is p t v t i t Vp Ip cos  Vp Ip cos 2!t  1
where Vp and Ip are the rms values of v and i, respectively, and  is the angle between them. The power oscillates between Vp Ip 1 cos  and Vp Ip 1 cos  . In power systems, especially at higher levels, it is desirable to have a steady ow of power from source to load. For this reason, polyphase systems are used. Another advantage is having more than one voltage value on the lines. In polyphase systems, Vp and Ip indicate voltage and current, respectively, in a phase which may be di erent from voltages and currents in other phases. This chapter deals mainly with three-phase circuits which are the industry standard. However, examples of two-phase circuits will also be presented.
TWO-PHASE SYSTEMS
A balanced two-phase generator has two voltage sources producing the same amplitude and frequency but 908 or 1808 out of phase. There are advantages in such a system since it gives the user the option of two voltages and two magnetic elds. Power ow may be constant or pulsating.
EXAMPLE 11.1 An ac generator contains two voltage sources with voltages of the same amplitude and frequency, but 908 out of phase. The references of the sources are connected together to form the generator s reference terminal n. The system feeds two identical loads [Fig. 11-1(a)]. Find currents, voltages, the instantaneous and average powers delivered. Terminal voltages and currents at generator s terminal are p p vb t Vp 2 cos !t 908 2 va t Vp 2 cos !t p p ia t Ip 2 cos !t  ib t Ip 2 cos !t 908  In the phasor domain, let Z jZj  and Ip Vp =jZj. VAN Vp 0 IA Ip  VBN Vp 908 IB Ip 908  Then, p VAB VAN VBN 2Vp 458 p IN IA IB Ip 2 458  3
The voltage and current phasors are shown in Fig. 11-1(b). Instantaneous powers pA t and pB t delivered by the two sources are
Copyright © OnBarcode.com . All rights reserved.