LZW-66(69) 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 - Rated voltage : 66kV or 69kV
- Highest voltage for equipment : 72.5 kV
- Rated insulation level : 72.5/140/325kV
- Rated secondary current : 5A or 1A
- Standards: IEC60044-1.2003 Part 1: Instrument transformers-Part1: Current transformers or ANSI IEEE STD C57.13-2008
- Other technical parameter pls see as follow:
Specification
Single Ratio
| Rated Transformation ratio(A) | Secondary accuracy classes combination | Rated output
(VA) | Rated short-time thermal current (kA/1s) | Rated dynamic current ( kA)
|
| Measuring | Protective |
| 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 |
| 600/5 | 0.2/5P20 | 60/60 | 80 | 125 |
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 |
Remarks: Upon request we are glad to offer transformers according to other standards or with non-standard technical specs.
Outline drawing
Work with us, a CT and relay assembly solutions provider that GE and Itron trustCE-, TÜ V- and RoHS-marked ISO 9001: 2008-certified, KEMA
Offering a Wide Range of Products
Shenzhen Chuangyin is a national high-tech enterprise. We are specialized in R&D, production and sales of kinds split core current transformers, Rogowski coils, energy meter components (CT and relay), medium voltage current transformers, potential transformers, low voltage current transformers and switchgear components.
Passed CE, TUV, ISO and RoHS standards
We have a head office in Shenzhen High-tech Park and two subsidiary production bases named Jiangxi Chuangyin (20, 000 square meters) and Zhuhai Chuangyin (10, 000 square meters). We offer a wide product range such as all kinds of current transformers from mini CT to medium voltage CT, and from solid core CT to split core CT. We are a key supplier of energy meter, switchgear and utility companies for more than 10 years. We are the only company who make current transformer and relay together, and provide good solution for smart meters. Our experienced engineers have good knowledge in energy meters and switchgears. Furthermore, we have certificates such as CE, RoHS and ISO from TUV.
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