 Home
 Products
 Integration
 Tutorial
 Barcode FAQ
 Purchase
 Company
barcode reader code in c# net A fourpole, 450kW, 46kV shunt generator has in Software
1711 A fourpole, 450kW, 46kV shunt generator has QR Code Reader In None Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications. Printing QR Code In None Using Barcode creator for Software Control to generate, create QR Code image in Software applications. 1719 A 200VDC shunt motor with an armature
Denso QR Bar Code Scanner In None Using Barcode reader for Software Control to read, scan read, scan image in Software applications. Encode QRCode In C#.NET Using Barcode creator for .NET framework Control to generate, create QR Code ISO/IEC18004 image in Visual Studio .NET applications. resistance of 01 and a eld resistance of 100 draws a line current of 5 A when running with no load at 955 rev/min Determine the motor speed, the motor ef ciency, the total losses (ie, rotational and I 2 R losses), and the load torque (ie, Tsh ) that will result when the motor draws 40 A from the line Assume rotational power losses are proportional to the square of shaft speed Make QR Code In VS .NET Using Barcode creation for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications. Making QR In .NET Framework Using Barcode generator for VS .NET Control to generate, create QRCode image in .NET framework applications. 1712 A shunt DC motor has a shunt eld resistance of
Encoding QR Code In VB.NET Using Barcode printer for VS .NET Control to generate, create QR Code JIS X 0510 image in .NET framework applications. Printing Code 128 Code Set A In None Using Barcode creator for Software Control to generate, create ANSI/AIM Code 128 image in Software applications. 400 and an armature resistance of 02 The motor nameplate rating values are 440 V, 1,200 rev/min, 100 hp, and fullload ef ciency of 90 percent Find: a The motor line current b The eld and armature currents c The counter emf at rated speed d The output torque USS Code 39 Maker In None Using Barcode generation for Software Control to generate, create Code39 image in Software applications. Painting UPCA Supplement 2 In None Using Barcode drawer for Software Control to generate, create UCC  12 image in Software applications. 1720 A selfexcited DC shunt generator is delivering
ECC200 Creation In None Using Barcode encoder for Software Control to generate, create ECC200 image in Software applications. GTIN  128 Maker In None Using Barcode generation for Software Control to generate, create EAN / UCC  14 image in Software applications. 20 A to a 100V line when it is driven at 200 rad/s The magnetization characteristic is shown in Figure P1720 It is known that Ra = 10 and Rf = 100 When the generator is disconnected from the line, the drive motor speeds up to 220 rad/s What is the terminal voltage Creating Interleaved 2 Of 5 In None Using Barcode creator for Software Control to generate, create ANSI/AIM I2/5 image in Software applications. Bar Code Encoder In None Using Barcode creator for Font Control to generate, create barcode image in Font applications. 1713 A 30kW, 240V generator is running at half load
Data Matrix ECC200 Encoder In Visual Studio .NET Using Barcode printer for Reporting Service Control to generate, create Data Matrix image in Reporting Service applications. DataMatrix Printer In ObjectiveC Using Barcode creation for iPhone Control to generate, create Data Matrix 2d barcode image in iPhone applications. at 1,800 rev/min with ef ciency of 85 percent Find the total losses and input power
Creating Barcode In Visual Studio .NET Using Barcode printer for Reporting Service Control to generate, create barcode image in Reporting Service applications. Generate Linear In Visual Basic .NET Using Barcode creation for .NET Control to generate, create Linear image in Visual Studio .NET applications. 1714 A 240volt series motor has an armature
UPCA Supplement 2 Decoder In Java Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications. Paint Code 39 Full ASCII In ObjectiveC Using Barcode maker for iPad Control to generate, create Code 39 image in iPad applications. resistance of 042 and a series eld resistance of
17
Introduction to Electric Machines
Eb Volts 180 120 60 05 10 15 20 If Amps = 200 rad/sec
ia + VS
Figure P1723
Figure P1720
1724 With reference to Example 179, assume that the
load torque applied to the PM DC motor is zero Determine the response of the motor to a step change in input voltage Derive expressions for the natural frequency and damping ratio of the second order system What determines whether the system is overor underdamped 1721 A 50hp, 230volt shunt motor has a eld
resistance of 177 and operates at full load when the line current is 181 A at 1,350 rev/min To increase the speed of the motor to 1,600 rev/min, a resistance of 53 is cut in via the eld rheostat; the line current then increases to 190 A Calculate: a The power loss in the eld and its percentage of the total power input for the 1,350 rev/min speed b The power losses in the eld and the eld rheostat for the 1,600 rev/min speed c The percent losses in the eld and in the eld rheostat at 1,600 rev/min 1725 A motor with polar moment of inertia J develops
torque according to the relationship T = a + b The motor drives a load de ned by the torquespeed relationship TL = c 2 + d If the four coef cients are all positive constants, determine the equilibrium speeds of the motorload pair, and whether these speeds are stable 1726 Assume that a motor has known friction and
windage losses described by the equation TFW = b Sketch the T  characteristic of the motor if the load torque, TL , is constant, and the TL  characteristic if the motor torque is constant Assume that TFW at full speed is equal to 30 percent of the load torque 1722 A 10hp, 230volt shuntwound motor has rated
speed of 1,000 rev/min and fullload ef ciency of 86 percent Armature circuit resistance is 026 ; eldcircuit resistance is 225 If this motor is operating under rated load and the eld ux is very quickly reduced to 50 percent of its normal value, what will be the effect upon counter emf, armature current and torque What effect will this change have upon the operation of the motor, and what will be its speed when stable operating conditions have been regained 1727 A PM DC motor is rated at 6 V, 3350 rev/min, and has the following parameters: ra = 7 , La = 120 mH, kT = 7 10 3 Nm/A, J = 1 10 6 kgm2 The noload armature current is 015 A a In the steadystate noload condition, the magnetic torque must be balanced by an internal damping torque; nd the damping coef cient, b Now sketch a model of the motor, write the dynamic equations, and determine the transfer function from armature voltage to motor speed What is the approximate 3dB bandwidth of the motor b Now let the motor be connected to a pump with inertia JL = 1 10 4 kgm2 , damping coef cient bL = 5 10 3 Nms, and load torque TL = 35 1 3 Nm Sketch the model describing the motorload con guration, and write the dynamic equations for this system; determine the new transfer function from armature voltage to motor speed What is the approximate 3dB bandwidth of the motor/pump system

