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LZW-72.5 current transformer, epoxy resin casting insulation and outdoor installation, is widely used for measuring current, electric energy and protective relaying in the power system with the rated frequency 50Hz or 60 Hz and rated voltage 66kV or 69kV
Main technical parameter
1. Rated voltage : 66kV or 69kV
2. Highest voltage for equipment : 72.5 kV
3. Rated insulation level : 72.5/140/325kV
4. Rated secondary current :5Aor1A
5. Standards: IEC60044-1.2003 Part 1: Instrument transformers-Part1: Current transformers or ANSI IEEE STD C57.13-2008
6. Other technical parameter pls see as follow:
|
Rated Transformation ratio(A) |
Secondary accuracy classes combination |
Rated output (VA) |
Rated short-time thermal current (kA/1s) |
Rated dynamic current ( kA)
|
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|
Measuring |
Protective |
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|
0.2S |
0.5 |
10P15 |
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|
25~200/5 |
0.2S/0.5/10P15 0.2/0.5/10P15
0.2S/10P15/10P15 0.2/10P15/10P15 |
50 30 |
50 30 |
50 30 |
150I1n |
375I1n |
|
300/5 |
42.5 |
100 |
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|
400/5 |
50 |
100 |
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|
500/5 |
63 |
125 |
||||
|
600/5 |
80 |
125 |
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|
750/5 |
80 |
125 |
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|
800/5 |
100 |
160 |
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|
1000~1500/5 |
100 |
160 |
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Double ratios
|
Rated Transformation ratio(A) |
Secondary accuracy classes combination |
Rated output (VA) |
Rated short-time thermal current (kA/1s) |
Rated dynamic current Idyn( kA)
|
|||
|
Measuring |
Protective |
||||||
|
0.2 Tap |
0.2S Full |
0.5 |
10P15 |
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|
2X25/5 |
0.2S/0.5/10P15 0.2/0.5/10P15 0.2S/10P15/10P15 0.2/10P15/10P15 |
30 |
50 30 |
50 30 |
50 30 |
2X3 |
2X8 |
|
2X50/5 |
2X6 |
2X15 |
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|
2X75/5 |
2X 9 |
2X22.5 |
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|
2X100/5 |
2X 12 |
2X30 |
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|
2X150/5 |
2X15 |
2X37.5 |
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|
2X200/5 |
2X 22.5 |
2X56 |
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|
2X300/5 |
2X 31.5 |
2X80 |
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|
2X400/5 |
2X 42.5 |
2X100 |
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|
2X600/5 |
2X 55 |
2X137.5 |
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|
2X750/5 |
2X 70 |
2X175 |
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Remarks: Upon request we are glad to offer transformers according to other standards or with non-standard technical specs.
Outline drawing
電話：
0086-755-86000443
0086-755-86000772
傳真：
0086-755-86000614
郵箱：
international2@chuangy.com
地址:
深圳市南山區(qū)西麗街道松坪山社區(qū)松坪山路5號嘉達研發(fā)大樓B座101 / 401 (深圳)
珠海市高新區(qū)唐家灣鎮(zhèn)科技五路24號(珠海）
江西省九江縣沙城工業(yè)園廬山東路31號(江西)
