11KV Current Transformer

LZZBJ9-12A1(A2) current transformer, epoxy resin casting insulation and fully enclosed support construction, encloses primary & secondary windings and annular core in the epoxy resin casting body. The product has the feature of light weight, omni-directional installation, withstanding nastiness and dampness. It is widely used for measuring current, electric energy and protective relaying in the electrical system with the rated frequency 50- 60Hz and highest voltage for equipment 7.2 kV /12 kV . Main technical parameter 1. Rated voltage: 6.6 kV or 11 kV etc. 2.Rated secondary current: 5A?1A 3.Rated insulation level: 7.2/20/60 kV or 12/28/75 kV 4.Standards: IEC60044-1.2003 Part 1: Instrument transformers-Part1: Current transformers 5.Other technical parameter pls see as follows Rated transformation ratio(A) Accuracy classes combination Rated output(VA) (ALF) (FS) Short-time thermal current Ith(kA/S) Rated dynamic current Idyn(kA) Measuring Protective 0.2(S) 0.5 10P 10-200/5 0.2(S)/0.2(S) 0.2(S)/0.5 0.2(S)/10P 0.5/10P 0.2S/0.5/10P 0.2/0.5/10P 10 15 15 15 10 15 20 5 (10) 150I1n 375I1n 300/5 31.5 80 400/5 31.5 80 500/5 40 100 600/5 50 125 800/5 20 63 125 1000/5 80 160 1200~1500/5 80 160 1500~2000/5 100 160 2000~3150/5 130 160 Rated transformation ratio(A) Accuracy classes combination Rated output(VA) (ALF) (FS) Short-time thermal current Ith(kA/S) Rated dynamic current Idyn(kA) Measuring Protective 0.2(S) 0.5 10P 10-200/5 0.2S//0.5/ 10P 0.5/0.5/10P 10 15 15 15 20 10 15 5 (10) 150I1n 375I1n 300/5 31.5 80 400/5 31.5 80 500/5 40 100 600/5 50 125 800/5 63 125 1000/5 80 160 1200~1500/5 80 160 1500~2000/5 100 160 2000~3150/5 130 160 Remarks: Upon request we are glad to offer transformers according to other standards or with non-standard technical specs.