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US5U30
US5U30

25471_energy_conversion_5
25471_energy_conversion_5

... • Impedance of line 20+j60Ω,impedance of load1030  • Base values chosen as 480 V and 10 kVA at genertor (a) Find bas voltage, current, impedance, and power at every point in power system (b) convert this system to its p.u. equivalent cct. (c) Find power supplied to load in this system (d) Find po ...
Electricity
Electricity

... A piece of apparatus specially made to have a definite value of resistance is called a resistor. The circuit symbol for a resistor is shown here. ...
3-Phase Sensor Less Motor Driver
3-Phase Sensor Less Motor Driver

... as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCI ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

... Flow Controller (IPFC) can be used. An IPFC consists of two series VSCs whose dc capacitors are coupled. This allows active power to circulate between the VSCs. With this configuration, two lines can be controlled simultaneously to optimize the network utilization. The GUPFC combines three or more s ...
Cyclic voltammetry
Cyclic voltammetry

... The first parameter define when the current is measured for each voltage step. Actually, to perform a ramp of potential, the potentiostat applies several voltage steps (discrete behavior, not analog). The second one allows you to get a smoother data, it is recommended to use N = 10. Current given is ...
PQ_UNIT III
PQ_UNIT III

... The arresters are diverting the surges to ground independently of the rest of the system. It is important to place the arrester across the sensitive equipment or instruments to be protected. The arresters are usually connected to the local ground. So the local ground may not remain at zero potential ...
Operating Instructions S94P01B2__PositionServo with RS
Operating Instructions S94P01B2__PositionServo with RS

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Illumination Utilization of Electrical Energ 6TH SEMESTER
Illumination Utilization of Electrical Energ 6TH SEMESTER

... Problem 1. A current transformer has a single turn primary and a 200 turns secondary winding. The secondary current of 5 A is passing through a secondary burden of 1 Ohm resistance. The required flux is set up in the core by e.m.f. of 80 A. The frequency is 50 C/S and net cross section area of core ...
MAX1725/MAX1726 12V, Ultra-Low I , Low-Dropout Linear Regulators
MAX1725/MAX1726 12V, Ultra-Low I , Low-Dropout Linear Regulators

... For fixed 1.8V, 2.5V, 3.3V, or 5V output voltages, use the MAX1726. The MAX1725 features an adjustable output voltage from 1.5V to 5V, using two external resistors connected as a voltage-divider to FB (Figure 1). The MAX1725 is optimized for operation with R2 = 1.2MΩ. The output voltage is set by th ...
4-Channel Regulated Charge Pump White LED Driver
4-Channel Regulated Charge Pump White LED Driver

... mode or 1.5x fractional mode regulating current through each of the 4 LED pins. Operation at a fixed high frequency of 1 MHz typical allows the use of very small value ceramic capacitors. The CAT3604A drives white light-emitting diodes (LEDs) connected in parallel and provides tightly matched regula ...
Make High Voltage Diodes
Make High Voltage Diodes

5464 Explain automotive electrical and electronic applications
5464 Explain automotive electrical and electronic applications

... an inter-institutional body with delegated authority for quality assurance, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment. Industry Training Organisations must be granted consent to assess against standards by NZQA before ...
QS5U28
QS5U28

... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
Driving LEDs with a PIC Microcontroller Application Note
Driving LEDs with a PIC Microcontroller Application Note

... by means of an A/D module. The signal to be converted is chosen by software, and forwarded to the A/D module. This module requires a constant reference voltage. The voltage can either be applied externally at an input pin, or internally via a so-called voltage reference module. In the latter case, t ...
High-Frequency Link: A Solution for Using Only One DC Source in
High-Frequency Link: A Solution for Using Only One DC Source in

... powerful (main) H-bridges manage the 80% of the power and operate at the fundamental frequency, reducing the switching losses. Moreover, the THD is highly reduced; therefore, output filters can be eliminated, and the cable length to the motor is less restricted. However, ACHB introduces a partial la ...
Smart Floor Cleaning Robot (CLEAR)
Smart Floor Cleaning Robot (CLEAR)

2SK3541
2SK3541

... 3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal injury or fire arising from failure, please take safety measures such as complying with the derating char ...
SC4524C - Semtech
SC4524C - Semtech

Transformers, Per Unit Calculations
Transformers, Per Unit Calculations

... Autotransformers are transformers in which the primary and secondary windings are coupled magnetically and electrically. This results in lower cost, and smaller size and weight. The key disadvantage is loss of electrical isolation between the voltage levels. This can be an important safety considera ...
Exclusive Technology Feature Synchronous Zeta Converter
Exclusive Technology Feature Synchronous Zeta Converter

The Diode Exercise in Excel
The Diode Exercise in Excel

... Expected completion time: 1 hour to 2 hours. The first time may take 2 hours. The advantage to using Excel is that once you have the file set up you can just copy it to make following exercises. The exercise 1) Select a diode to do the exercise with. 2) Select a resistor within the safe limits of th ...
Title Experiment using variable reactor of rectifier type
Title Experiment using variable reactor of rectifier type

... ensure the low voltage drop across the SFCL. Another advantage of the rectifier type SFCL is that it could be used as a circuit breaker along with its current limiting property. A diodethyristor based hybrid bridge circuit is capable of shutting down the power line from the load by removing the trig ...
Applications of Diodes Word Document
Applications of Diodes Word Document

... We can see from the characteristic that below 0.5V, no current flows through the diode. As the voltage increases from 0.5V the current flowing starts to increase, slowly at first and as the voltage reaches 0.7V the increase in current becomes much more significant. Indeed the current can increase mu ...
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Stepper motor



A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.
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