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Can 600VLL be connected to an ION 7xxx meter that is connected as Single phase even though the Installation Manual shows 554V-LL?

The installation manuals show the following for a single phase system:
Connection diagram
Two conditions must be satisfied:

  1. V-LN <347V
  2. V-LL<600V
  • For a three phase system running at 347V-LN, V-LL=sqrt(3)*600V and both conditions are met.
  • For a single phase system with 180 degree separation, if VLN=347V condition 1 will be satisfied, condition 2 fails (347V*2=694V).
  • If V-LL is limited to 600V, V-LN=600V/2=300V and both conditions are met.

Therefore, 600V-LL can be used for a single phases system.

The statement in the installation guide states 277V-LN/554V-LL because 277V-LN is a standard power level. This was put in to try and make things simpler for the end user although it could cause some confusion.

Schneider Electric Danmark

Can 600VLL be connected to an ION 7xxx meter that is connected as Single phase even though the Installation Manual shows 554V-LL?

The installation manuals show the following for a single phase system:
Connection diagram
Two conditions must be satisfied:

  1. V-LN <347V
  2. V-LL<600V
  • For a three phase system running at 347V-LN, V-LL=sqrt(3)*600V and both conditions are met.
  • For a single phase system with 180 degree separation, if VLN=347V condition 1 will be satisfied, condition 2 fails (347V*2=694V).
  • If V-LL is limited to 600V, V-LN=600V/2=300V and both conditions are met.

Therefore, 600V-LL can be used for a single phases system.

The statement in the installation guide states 277V-LN/554V-LL because 277V-LN is a standard power level. This was put in to try and make things simpler for the end user although it could cause some confusion.

Schneider Electric Danmark

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