Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 27 replies
  • Subscribers 34 subscribers
  • Views 2087 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Correct abbreviations for electrical units.

broadgage
One thousand watts is it 1Kw or is it 1KW both are used.

Is a "board of trade unit" 1Kwh or is it one 1KWH.


Likewise 1Mw or 1 MW

And 1Mwh or 1MWH.


And spelling.

Power inverter or power invertor or is either correct.
  • 0
    Do not worry, on Russian equipment, it is BOLTS, much easier to remember as they have no small letters - and seem to be always shouting....

    Time to CTOπ  I think.

    So B+ is the positive supply as, oddly it is in older American texts as well,  because of the old valve era A battery (filamemt) B battery (HT, main power) C battery (grid bias) thing.


    Mike.
  • 0
    mapj1:

    Time to CTOπ  I think.


    Pi in the sky! Yes, let's СТОП!


  • 0
    gkenyon:

    Correctly, there is usually a space separating the value from the units, so:


    1.5 kV

    400 V

    1 MΩ

     


    As Bod told me!


  • 0
    AJJewsbury:

    In some circles K is used to mean "binary" kilo - i.e. 1024 (2^8) times rather than 1000 times - so tends to be used for quantities that naturally increase by a factor of 2 - usually computer memory.

       -  Andy.


    1024 = 2^10     2^8 =256


  • 0
    1024 = 2^10 2^8 =256

    Quite right ... I wondered who would spot that deliberate mistake first ?

       - Andy.
  • 0
    ebee:

    Why do we speak of AC Voltages instead of just AV (Alternating Voltages) ?


    Cos we think of the two popular current types, direct and alternating: D.C. and A.C. As the current is driven by the "Voltage,"  we consider the driving D.C. or A.C. Voltage involved. Years ago the "Voltage" was referred to as electrical "pressure".


    Z.


  • 0
    Well we speak of AC Voltages so perhaps we could speak of AV Currents too ?

Community Rules & Guidelines