HMI Human machine interface (Front of the protective relay)
HTL Manufacturer internal product designation
HTTP Hyper text transfer protocol
Hz Hertz
I Fault current
I Current
I0 Zero current (symmetrical components), Zero sequence current
I1 Positive sequence current (symmetrical components)
I2 Negative sequence current (symmetrical components)
IA Phase A current
IAB Phase A minus B current
IB Phase B current
IBC Phase B minus C current
I-BF Tripping threshold
IC Phase C current
IC's Manufacturer internal product designation
ICA Phase C minus A current
ID Identication
IEC International Electrotechnical Commission
IED Intelligent electronic device
IEEE Institute of Electrical and Electronics Engineers
IG Ground current (not residual)
IG Fault current
Igd Dierential ground current
IGnom Nominal ground current
IH1 Fundamental harmonic (1st harmonic)
IH2 2nd harmonic
IINV Inverse
in. Inch
incl. Include, including
263www.eaton.comEMR-3MP0
11 Appendix
11.2 Glossary