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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 |
||||
|
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 |
||||
|
400/5 |
50 |
100 |
||||
|
500/5 |
63 |
125 |
||||
|
600/5 |
80 |
125 |
||||
|
750/5 |
80 |
125 |
||||
|
800/5 |
100 |
160 |
||||
|
1000~1500/5 |
100 |
160 |
||||
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 |
||||
|
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 |
|||||
|
2X75/5 |
2X 9 |
2X22.5 |
|||||
|
2X100/5 |
2X 12 |
2X30 |
|||||
|
2X150/5 |
2X15 |
2X37.5 |
|||||
|
2X200/5 |
2X 22.5 |
2X56 |
|||||
|
2X300/5 |
2X 31.5 |
2X80 |
|||||
|
2X400/5 |
2X 42.5 |
2X100 |
|||||
|
2X600/5 |
2X 55 |
2X137.5 |
|||||
|
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
总机：0086-755-86000443
国际事业部：
0086-755-860007、00861313823790397
邮箱：international2@chuangy.com
深圳市南山区西丽街道松坪山社区松坪山路5号嘉达研发大楼B座101 / 401 (深圳)
邮箱：cyty@chuangy.com
珠海市高新区唐家湾镇科技五路24号(珠海）
