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Open circuiting this circuit

  • Engineering
  • Thread starter orla22
  • Start date
  • #1
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How do i open circuit phase R. Line number 4 on the digram being phase R?
 

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  • #2
Astronuc
Staff Emeritus
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I'm not sure what you mean by 'How do i open circuit phase R'. If the impedance (resistor) in line 4 breaks or burns out it is open.

I suspect this is a question about an unbalanced Y.
 
  • #3
22
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ok so i should open circuit it by removing the load in line 4 correct and draw a direct line to the source?
 
  • #4
Astronuc
Staff Emeritus
Science Advisor
18,705
1,719
An open circuit means the conduction has failed, i.e. it is broken. If one wants to model an open ciruit, one would have to add a switch, which then opens.

For example

_______________ is closed

_________/ _____ is open
 

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