34 Appendix A: Technical Specifications
Key:
PT - external potential transformer ratio
CT, CT primary current - the primary current rating of the external current transformer
c @ 10% to 120 % of voltage full scale and 2% to 120 % of current full scale
NOTES
1. Accuracy is expressed as ± (percentage of reading + percentage of full scale) ± 1 digit. This does not include inaccuracies
introduced by the user's potential and current transformers.
2. These specifications assume voltage and current waveforms with THD
≤ 5 % (except harmonic measurements) and an
operating temperature of 20 to 26 °C.
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