• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

How Engineering Works

  • Home
  • MCQ
    • Electrical MCQ
    • Civil MCQ
    • Mechanical MCQ
  • Interview Questions
  • About Us
  • Privacy Policy
  • Disclaimer
  • Contact Us

Why does America use 110V as single phase voltage but Europe and Asia use 230v?

February 5, 2018 by Sunil

DWQA Questions › Category: General Electrical › Why does America use 110V as single phase voltage but Europe and Asia use 230v?
0 Vote Up Vote Down
Sunil asked 5 years ago
2 Answers
0 Vote Up Vote Down
admin Staff answered 5 years ago

The difference can be explained by historical circumstance.
Whilst Europe decided to go with 220V alternating current very early on (metal filaments in incadescent bulbs became viable earlier, here), the “war of the currents (Edison with DC, Tesla with AC) dragged on in the US. As Edison introduced 100V incadescents with carbon filaments very early on, the US decided to go with 110V.

The difference in frequency (Europe has 50Hz, US 60Hz) is due to regulatory decisions.

You can also Read :
Interview Questions
MCQ or objective

0 Vote Up Vote Down
admin Staff answered 5 years ago

Changing voltage means design changes on appliances, the wiring cross section and insullation should change accordingly, as well for switch, relays or other devices, the higher the voltage the more dangerous but also more efficient for transferring energy, it is a trade off and each country will like to have their standards to be accepted worldwide then it is difficult to reach an agreement because it will imply massive changes for those accepting foreign standard.

You are welcome to read more Important Interview Questions and MCQs.

Primary Sidebar

Related Questions

  • What would happen if I put my smartphone into the refrigerator? asked by
  • How many volts of electricity can a human survive? asked by admin
  • What are the functions of surge tank in hydro power plant? asked by admin
  • Why AC rated in Tons, Not in kW or kVA? asked by

INTERVIEW QUESTIONS

MCQ or Objective


Recommended Post

Electric current

Electrical Substation, what are its classifications?

MCQs on Power Generation

Electrical switchgear, what are its functions and features?

MCQs on DC Machine

Categories



Join Our Whatsapp Group


About Us | Privacy Policy | Disclaimer


Copyright@ Since-2017