Electrical Calculation

Electrical Calculation and Electrical Notes on Electrical Engineering:

All Notes ,Calculations & Abstracts are Based on Some Electrical References. All References are mention at end of each Notes.

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Electrical Calculation Sheets:                    .

(1) Cable:

  1. Calculation of Cable Tray Size
  2. Calculate Cable Trunking Size
  3. Calculate Conduit Size for Wire / Cables
  4. Calculate Cable Size and Voltage Drop

(2) Panel / Bus bar / Relay:

  1. Calculate Size of Bus bar & Panel Design
  2. Calculate IDMT over Current Relay Setting (50/51)
  3. Calculate TC Size & Voltage Drop due to starting of Large Motor
  4. Calculate Size of Solar Panel
  5. Calculate Size of Main ELCB/ Branch MCB of Distribution Box

(3) Transmission / Distribution / Transformer:

  1. culate Size of Circuit Breaker/ Fuse for Transformer (As per NEC)
  2. Calculation Short Circuit Current (Base KVA Method)
  3. Calculate Technical Losses of Transmission / Distribution Line
  4. Calculate Voltage Regulation of Distribution Line

(4) Earthing / Lighting Protection:

  1. Calculate Numbers of Plate/Pipe/Strip Earthings (Part-3)
  2. Calculate Numbers of Plate/Pipe/Strip Earthings (Part-2)
  3. Calculate Numbers of Plate/Pipe/Strip Earthings (Part-1)
  4. Calculate Lightening Protection for Building / Structure
  5. Calculate Size of Neutral Earthing Transformer (NET)
  6. Calculate Size of Circuit Breaker/ Fuse for Transformer (As per NEC)

(5) Illumination / Street Light / Flood Light:

  1. Calculate Size of Pole Foundation & Wind Pressure on Pole
  2. Calculate Street Light Pole’s Distance / Fixture Watt / Lighting Area
  3. Calculate No of Street Light Poles
  4. Calculate No of Lighting Fixtures / Lumen for Indoor Lighting
  5. Calculate Lighting Fixture’s Beam Angle and Lumen
  6. Simple Calculation of Flood Light, Facade Light, Street Light & Signage Light-(Part-2)
  7. Simple Calculation of Flood Light, Facade Light, Street Light & Signage Light-(Part-1)
  8. Calculate Voltage drop for Street Light Poles

(6) Motor:.

  1. Calculate Size of Cable for Motor (As NEC)
  2. Calculate Size of Contactor, Fuse, C.B, Over Load Relay of DOL Starter
  3. Calculate Size of Contactor / Fuse / CB / OL Relay of Star-Delta Starter

(7) Others:.

  1. Calculate Motor Pump Size
  2. Calculate Size of Capacitor Bank / Annual Saving & Payback Period
  3. Calculate Size of Diesel Generator Set
  4. Calculate Size of Inverter / Battery Bank
  5. Calculate Required Air ventilation and Heat generation of D.G Set
  6. Calculate Size of Ventilation Fan
  7. Calculate Size of Pole Foundation & Wind Pressure on Pole
  8. Calculate Size of Anchor Fastener for Water Pipe Support

18 Responses to Electrical Calculation

  1. TULAJAPPA says:

    Thanks a lot Sir, you have done a greate job. Thanks for Sharing your mind.

  2. vijay says:

    hello sir

    i am vijay
    there are very few people like u who share their magnificent experiences. The content you shared is very good and useful. thank you very much

  3. L A Sharma says:

    tremendous effort and good work. you are giving a plateform to share knowledge but also helping the others with your valuable experiences

  4. Nihar Ghosh says:

    Thanks sir for shareing your knowledge…

  5. d says:

    thank u sir u mail

  6. arjun says:

    thank you sir,can i run the 10 hp motor in star connection the purpose is power savings. i am expecting your reply. thanks again.

  7. chintan says:




  9. faizan ahmed says:

    dear sir,
    i need to purchase electrical abstract in pdf form i tried in pay pal it is not accepting kindly suggest me how i can purchase it

  10. gopal says:

    Dear Sir,
    Kindly suggest us where we take 30mA, 100 mA in ELMCB as well about Per phase Isolation in DB

  11. Navneet says:

    Hi ..
    This is Navneet.
    Thanks to share these precious knowledge on the site. This is useful information for every one.

    I appreciate it ..


  12. Devendra Tiwari says:

    hello sir,
    Could you plz confirm is there any specific clearance mention for 33 Kv underground line & over head fire hydrant water line.

  13. hello
    very nice information share with us thank you

  14. Bernard says:

    This is the knowledge that i have really been looking for, great job Engineer

  15. deepak pandey says:

    Thank u sir for such valuable informations

  16. dutikrushna gouda says:

    Thanks a lot for better information to us.

  17. Hitendrasinh says:

    Thank u so much sir for such valuable informations

  18. Vijay Mohale says:

    Dear Sir
    I need your email ID.Could you please provide and email id too.

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