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.