ANSI/IEEE C57.13.3:2005
Guide for Grounding of Instrument Transformer Secondary Circuits and Cases

Standard No.

ANSI/IEEE C57.13.3:2005

Release Date

2006

Published By

American National Standards Institute （ANSI)

Latest

ANSI/IEEE C57.13.3:2005

Scope

Provides information on the grounding of: secondary circuits of electromagnetic current transformer (CT) and voltage transformer (VT) circuits; cases of relays, CTs and VTs; secondary circuits of opto-electronic CTs and VTs. The primary emphases of this guide are personnel safety and proper performance of relays at electric power frequencies.

ANSI/IEEE C57.13.3:2005 history

• 2006 ANSI/IEEE C57.13.3:2005 Guide for Grounding of Instrument Transformer Secondary Circuits and Cases