Monday, April 28, 2014

Ohms Law - Amps Volts Watts Relation

The most important Electrical Law is the Ohms Law, a proper understanding of which can help you make many designs. Troubleshooting Home Appliances or understanding Household Wiring is easy if you master this.

Ohms Law

Volts is analogous to the pressure of a water in an Overhead Tank. The water head or height is like Voltage. The Pipe diameter and bends are like wire and its resistance, a water tap like a wirewound potentiometer. The rate of water flowing from the tap is like the flow of electric current in a wire.

Ohm's Law - Watlow Electric The one i used to use, This would be in the back of the handbook.

The water drops are similar to units of charge, the quantity of water filled in a bucket is like the amount of charge stored in a small capacitor. The Underground Sump can be compared to a Big capacitor. The evaporation of water is like leakage of charge thru the dielectric in a cap. If you use the running water to power a home made paddle wheel turbine; This is like simulating an electric motor or heater in a water circuit, the rotary power got, can be analogous to the heater's watts..

Ohms Law - Amps Volts Watts Relation

By Dmvstar (Own work) [CC-BY-SA-3.0], via Wikimedia Commons

    Thursday, April 17, 2014

    Genrad - General Radio - Instrumentation

    History and accomplishments of the General Radio Company, one of America’s first equipment manufacturers for the radio and electronics industry.

    General Radio Historical Society

    Founded in Cambridge, Massachusetts in 1915, GR provided the tools and instruments that allowed the electronics industry to burgeon into today’s giant that fills our lives with radio, TV, computers, cell phones, DVDs and all the other electronic products in our homes, businesses and automobiles.

    GenRad 1863 Megohmmeter

    The GenRad 1863 Megohmmeter is the choice for production and inspection tests on devices with resistances up to 20 Tohms. The GenRad 1863 will measure resistance at any of five test voltages of: 50V, 100V, 200V, 250V, and 500 VDC. Compared to the GenRad 1864, which has adjustable test voltages from 10V to 1090V, this unit has fewer controls, and is the more economical of the two models. - GenRad 1863

    Wednesday, April 16, 2014

    Electrical Safety and Clean Energy Systems

    This is an educative and important guide for Electrical Equipment Safety. This can be also applied partially to Power Electronics and Home Energy Systems. Electronic Equipment also have to be maintained by Calibrating them and protecting them from environmental parameters like dust, grime, direct sunlight, moisture, humidity, sea wind (brine), corrosive fumes and chemicals. They should not be even placed near machines like a big lathe, sub-sonic or low frequency vibrations.

    Electrical Safety 1

    Electrical Safety Testing Reference Guide

    Electrical Safety is a Serious Issue Electrical Safety in the workplace is the most important job of an electrical worker. No matter how much training one has received or how much employers try to safeguard their workers, Electrical Safety is ultimately the responsibility of the electrical worker.

    Electrical Safety 2

    Electrical Safety Hazards Handbook

    Power Studies, Arc-Flash Hazard Labeling, Data Gathering and Inspection, Engineering Services.

    The steps to osha electrical safety

    Electrical Design, Lighting and most important Earthing or Grounding. Good Reference Articles and Product Reviews.

    Electrical Construction and Maintenancee Power Quality, National Electric Code, Construction, V/D/V, Ops, Equipment Rental Industry Resourc

    Earthing or Grounding is something Audio Enthusiasts make a lot of fuss about. The Articles here about Balanced Power, Symmetrical Power Systems and Earthing throw light on ways to counter Audio Noise.

    AC Power has the 50/60 Hz noise, now more AC noise can be picked up by poorly designed systems when so many gadgets around. These articles are also relevant for the instrumentation engineer. Dissonance is encountered when you build sensitive strain gauge based measurements or while measuring and transmitting micro-volts from a remote sensor to the dashboard/control panel.

    Index of Technical Articles About Balanced Power

    International leader in electromagnetic compatibility (EMC) and power quality (PQ). EMC Filters, RFI Suppression Chokes, Feedthrough Components.

    Schaffner - electromagnetic compatibility

    Schaffner - EMC/EMI components, harmonic filters & magnetic components.

    Contents

    Basic Electronics
    Basics of Electronics
    Product Production
    Work Discipline
    Testing Points
    Learning Electronics
    Electronics Theory

    Production Notes
    Prototype Fabrication
    Electrical Circuits
    Electromechanical


    Library
    Scots Guide Electronics
    Engineering - Wikibooks
    Design Lab - Jim Svoboda
    DC Circuits UOG
    Socratic Electronics
    Blobz Guide Electric Circuits


    Product Design
    Product Development
    Constant Current Source
    Good Voltage Regulators
    Insulation Resistance
    Digital Insulation Tester
    DN Schematic PCB 04
    DN Product Design 07


    Hobby Circuits
    VU Meter Circuits
    LED brightness control
    555 Incredible Chip
    Process Control
    liquid level measurement
    Thermocouples and RTD
    Design ADC Interface uC
    Thermocouple Amplifier
    IA Instrumentation 02
    Temperature on DMM
    Optical Proximity Switch
    Analog Mux - Data Acquisition


    Test Measurement
    Instrumentation Automation
    NI Test and Measurement
    DMM Digital Multi Meter
    Oscilloscope in T&M
    IA Automation 01
    Build Instruments
    Tektronix T&M Equipment
    Educators Corner – Agilent


    Power Electronics
    UPS Background
    Transformer Connections
    DN Power Electronics 03
    DN Power Electronics 02
    Half Bridge Convertor SG3525


    Embedded
    Interfacing Microcontrollers
    Embedded Process Control
    80C31 8052 Microcontroller
    Microprocessors and uC
    Embedded Systems Design

    Components
    Good Voltage Regulators
    Relays and Contactors
    Potentiometers Trimpots
    Prototype Boards Types
    Types of Capacitors
    Types of Switches
    Resistors How they Work
    Coils Transformers SMPS
    Mains Transformers Types
    DN Components Selection 05

    Tutor Gadgets
    Count-Up Timer
    Digital Logic Gates
    Electronics Tutors

    History
    Teaching Instruments
    Charles Proteus Steinmetz
    Muntzing a Circuit Design
    Teralab Electronics projects
    Historical Instruments


    Tables, Charts, Videos
    Binary and Hex
    Resistor Color Code
    Ohms Law
    Giga, Tera, Pico, Nano
    High Resistance Materials

    Analog
    School - Analog Design
    DN Analog Basics 06
    DN Op-Amps 01
    TI Semiconductors

    Hobby DIY Garage