Lost in Translation - Power Requirements

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Discussion Overview

The discussion revolves around the electrical requirements for a water system being imported from Hong Kong, specifically addressing the compatibility of power supply specifications between the system's original design and the U.S. standards. The focus includes the implications of voltage and frequency differences for operational safety and functionality.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant notes that the U.S. power supply of 230V - 60Hz should be close enough to work with the imported system.
  • Another participant points out that typical portable generators in the U.S. usually generate 120 volts, although some can provide 240 volts.
  • It is mentioned that U.S. houses are supplied with 230 volts center-tapped, allowing for 115 volts from standard outlets.
  • Concerns are raised regarding the 50 Hz frequency of the water system, suggesting that a motor in the system may operate faster on 60 Hz, potentially leading to overheating.

Areas of Agreement / Disagreement

Participants express differing views on the compatibility of the power supply and the implications of frequency differences. There is no consensus on whether the system will function properly without modifications.

Contextual Notes

Participants highlight the need for potential custom wiring to accommodate the 240 volts required by the water system and the implications of operating at a different frequency, which may affect motor performance.

Who May Find This Useful

Individuals involved in importing electrical equipment, those starting businesses that require specific electrical setups, and anyone interested in the compatibility of international electrical standards.

Water-Guru
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Hello!

This is my first post but I have been a lurker for a long time!

I am starting my own business in the U.S. and have run into a bit of lost in translation when it comes to the electrical requirements needed. I am importing a water system from Hong Kong that is based on:

Single phase / 240V - 50Hz

They know I am from the U.S, and they asked me to confirm that the following power supply is correct:

Main incoming Single Phase / 230V - 60Hz

Is this a standard power supply that will work with a portable generator? Will I need to have a custom generator built? Let me know if there are any questions and I will try my best to answer them.

Thanks in advance for the help!

Water-Guru
 
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Water-Guru said:
Hello!

This is my first post but I have been a lurker for a long time!

I am starting my own business in the U.S. and have run into a bit of lost in translation when it comes to the electrical requirements needed. I am importing a water system from Hong Kong that is based on:

Single phase / 240V - 50Hz

They know I am from the U.S, and they asked me to confirm that the following power supply is correct:

Main incoming Single Phase / 230V - 60Hz

Is this a standard power supply that will work with a portable generator? Will I need to have a custom generator built? Let me know if there are any questions and I will try my best to answer them.

Thanks in advance for the help!

Water-Guru

The US power should be close enough to work OK.
 
A portable generator in the US would normally generate 120 volts, not 230 volts.
Some do provide 240 volt outputs though.

For example see this one:
http://www.frys.com/product/5234037...vA28cOhXA__.node3?site=sr:SEARCH:MAIN_RSLT_PG
27.5 amps at 120 volts.

US houses have 230 volts center tapped supplied. Outlets give the center tap and one side of the input. So, you get 115 volts or so.

There is 230 volts available and you can get special wiring done to provide 230 volts for the water heater.
 
The 50 hertz may be a problem is you have a motor in the water system.
The motor will operate faster on 60 hertz and ? may overheat.
 

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