
IEEE Guide for Grounding of Instrument Transformer Secondary Circuits and Cases
NORMA vydána dne 24.7.2026
Designation standards: IEEE C57.13.3-2025
Publication date standards: 24.7.2026
The number of pages: 56
Approximate weight : 168 g (0.37 lbs)
Country: International technical standard
Kategorie: Technické normy IEEE
Revision Standard - Active.
General and specific guidance for grounding current and voltage transformer secondary circuits and cases of connected equipment are covered in this guide. Although most diagrams included in this guide show relaying applications, the guidance applies equally to metering and other areas where instrument transformers are used. Grounding practices presently used, and practices that were not previously reported, are included in this guide. Specifically, a review of other than North American grounding practices is included.
ISBN: 979-8-8557-2762-3, 979-8-8557-3133-0, 979-8-8557-3134-7
Number of Pages: 56
Product Code: STDAPE28372, STD28645, STDPD28645
Keywords: capacitive voltage transformer, combined metering unit, current transformer, grounding of cases of instrument transformers, grounding secondary circuits of instrument transformers, IEEE C57.13.3, instrument transformer, linear coupler, low energy transducer, resistive voltage transformer, voltage transformer
Category: Protective Relaying
Draft Number: PC57.13.3/D2.5, Oct 2025 - APPROVED DRAFT