Recent content by sparkey

  1. sparkey

    Polyphase Circuits: Purpose & Benefits

    Said appliances should actually have four wires running to them through the cable, but only two of them are the power supply conductors. Black and red would be the "hot" legs, white is the neutral, and green/bare would be the equipment grounding conductor. The phase doesn't refer to the amount...
  2. sparkey

    Polyphase Circuits: Purpose & Benefits

    Short answer, one "hot" wire per phase. Long answer: For single and two phase, think house wiring for simplicity sake. Your home power is typically called single phase because most of your stuff all runs off single phase 120Vac. Now, if you have any 240Vac appliances (washing machine, water...
  3. sparkey

    Electromagnetic Waves speed in Conductor

    disregard theories for a second. you are not applying a magnetic field to wire to generate current. you are using a battery to generate an electric current through the wire thus generating the magnetic field. your thinking is all jumbled up. connect conductors to power source power source...
  4. sparkey

    Electromagnetic Waves speed in Conductor

    i think you are confusing yourself here. go back to basics for a minute. electromagnetism is not its own entity, it is a result of electrical current. the em wave will generate in the direction of current flow perpendicular to the conductor. the wave is a result of the field being generated...
  5. sparkey

    Choice of motors, please advise

    a rotisserie motor would work nicely in my opinion. the slightly higher RPM allows you to add a direct drive gearbox to it to reduce RMP and increase torque at the same time.
  6. sparkey

    Setting up wind power equipment

    disconnecting from the grid entirely will prove difficult using a DIY generation 'kit'. and you will not do it with a $600 ebay kit. i have never looked into a solar sprinkler but it must be a DC sprinkler to not need an inverter. it sounds as if you do not know many of the principles behind...
  7. sparkey

    Setting up wind power equipment

    your 'converter' and transformer are a single system called an inverter. and you need it because a wind turbine will generate DC power. you then use the DC output to charge a battery bank. the battery bank then feeds the inverter which you tie into your houses supply. you cannot just go to...
  8. sparkey

    Peak Voltage vs magnet position in an A.C generator

    your peak voltage is generated as your conductor passes through the densest part of the magnetic flux.
  9. sparkey

    How can I wire up an LED puck light to an AC power source?

    well, you need some information about the LEDs to make a proper calculation. the voltage drop across each LED, max current through each would be a good place to start.**edit**here are good pages for you to reference http://www.kpsec.freeuk.com/components/led.htm#calculate...
  10. sparkey

    Building a Counting Circuit | Dane Peagler

    what kind of restrictions are on this project? is this on your bill or does your school have a decent size stock system? is this a breadboard type project or a mount-all-your-junk-on-plywood type project?
  11. sparkey

    120 VAC socket and switching question

    its an invasion, look out!
  12. sparkey

    Radio Frequency and electrical signals

    http://en.wikipedia.org/wiki/Radio_frequency maybe?
  13. sparkey

    120 VAC socket and switching question

    if the socket you get has screw terminals, a common way makers distinguish hot and neutral is different colored terminals. the hot will be darker than the neutral (usually copper finish vs aluminum finish). if not i would just wire it so that if you are looking at it head on with the ground...
  14. sparkey

    Timer Switch Questions: Answers & Solutions

    the only issue that i can see with what you are trying to do is that most thermostats are held contacts, so when they're on its held closed. it sounds to me like your stove has a momentary contact PB for the 'ON'. that being said, your control circuit still needs power, so there must be a...
  15. sparkey

    Does Decreased Humidity Increase Triboelectric Charge Accumulation?

    ok, a more low key answer to your question. consider first what static IS and how it builds; the whole friction and transfer of electrons blah blah. in high humidity situations, the air has a higher density of molecules and such bouncing off each other. the more interaction, the higher the...
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