completed within the target timeframe. Project Objectives: Implementing hardware and software to design and build a smart meter based microcontroller project that capable to achieve the following below feature guidelines: 1. Measure voltage‚ current‚ power factor‚ active power‚ reactive power‚ apparent power‚ consumed energy. 2. Reed remotely 3. Controlled remotely. 4. Record several tariff periods‚ more than just a day and a night tariff. 5. Register electricity being returned
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5/2/2006 Aim: Does the resistance of a filament bulb change as the bulb gets brighter? Hypothesis: I believe that a filament bulb will have an increasing resistance depending upon the current passing through it. Equipment: *Power Supply *Wires *Ammeter *Voltmeter *Filament bulb with holder *Alligator clips *Switch Method: 1.Set up the circuit according to the schematic diagram 2.Use the alligator clips to connect the filament bulb to the voltmeter 3.Connect the power supply to the electricity
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EC2259 Electrical Engineering And Control System Lab Manual LAB MANUAL VEL TECH MULTI TECH ( ISO 9001: 2000 Certified Institution & NBA Accredited ) (Owned by VEL Sree R.Rangarajan Dr. Sagunthala Rangarajan Educational Academy) Approved by AICTE‚ New Delhi & Affiliated to Anna University No 42‚ Alamathi Road‚ Near Avadi Chennai – 600 062 DEPARTMENT OE ELECTRONICS AND COMMUNICATION ENGINEERING EC 2259 - ELECTRICAL ENGINEERING AND CONTROL SYSTEM LAB II YEAR IV SEM ECE Prepared By
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to analyze the input and output signals produced by the amplifier. Because of the resulting output signals‚ which will be discussed further in other sections‚ this amplifier is essential to AC appliances requiring a certain amount of voltage and current gains. II. METHODOLOGY A. Materials and Equipment To construct the circuit‚ the electronic devices needed are as follows: capacitors of values 0.33 uF and 0.47uF‚ resistors of values 56k‚ 5.6k‚ 680 and 6.8k‚ a 2N3904 NPN transistor. Equipment
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A SEMINAR REPORT ON TESTING OF BRAZING JOINT OF FIELD COILS CIRCUIT OF TRACTION MOTOR TYPE TAO-659 AND HS-15250A Submitted by: VARUN BALI Roll No. 09EI59(EE) B.Tech. 4th Year (Electrical Engineering) DEPARTMENT OF ELECTRICAL ENGINEERING INSTITUTE OF ENGINEERING & TECHNOLOGY MAHATMA JYOTIBA PHULE ROHILKHAND UNIVERSITY‚ BAREILLY (2012-2013) ACKNOLEDGEMENT I am extremely grateful to Mr. M. A. Ansari (Senior Lecturer)‚ Mr. Sanjay
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IMPEDENCE (ZT) VR1 (rms) VC1 (rms) VR2 (rms) VC2 (rms) IT (rms) IR1 (rms) IC1 (rms) IR2 (rms) IC2 (rms) 1.25 kHz 800 !s 5.2 V (Z=E1/IT) 2352.94!-43.20° VOLTS !t ANGLE 1.81 V 96 !s 43.20° 2.76 V 106 !s -47.70° 2.06 V 53 !s 23.85° 2.06 V 53 !s 23.85° CURRENT ANGLE 2.210 mA 43.20° 2.210 mA 43.20° 2.168 mA 42.30° 2.060 mA 23.85° 0.760 mA 113.85° THEORETICAL CALCULATED VALUES 1.25 kHz 800 !s 5.2 V 2333.12!-43.22° 1.829!43.22° V 2.839!-46.78° V 2.092!23.02° V 2.092!23.02° V 2.230!43.22° mA 2.230!43.22°
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system can be subdivided into: a. Generation b. Transmission and Sub transmission c. Distribution Conventional ac electric power systems are designed to operate with sinusoidal voltages and currents. However‚ nonlinear and electronically switched loads distort steady state ac voltage and current waveforms. It is important to calculate these distortions
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Kirchoff’s laws for networks are: (a) The algebraic sum of branch currents meeting at any node is zero. (b) The algebric sum of voltage drops in any set of branches forming a closed circuit or loop must be equal to zero. (c) Both (a) and (b) (d) Neither (a) and (b) 3. Mutually coupled circuit is a circuit which is: (a) Bilateral (b) Unilateral (c) None of these (d) Either (a) or (b) 4. Duality is a (a) Transformation in which current and voltages are interchanged (b) Active sources become passive
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tolerable‚ but this should not be assumed without first checking with the manufacturer. • Nominal Operating Current The value of current flow in the coil when nominal voltage is impressed on the coil • Nominal Operating Power The value of power used by the coil at nominal voltage. For DC coils expressed in watts; AC expressed as volt amperes. Nominal Power (W or VA) = Nominal Voltage × Nominal Current. • Coil Resistance This is the DC resistance of the coil in DC type relays for the temperature conditions
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In this analysis‚ the stator current signal transformed to the frequency domain using a FFT algorithm. The stator current signal of the motor is used to analyze and detect specific fault frequencies related to incipient faults. For stator winding fault‚ there is an associated fault frequency that may be identified in the spectrum. The stator fault has been detected by comparing the healthy power spectrum to faulty power spectrum. The power spectrum of stator current for healthy no-load condition
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