20/24kV Oil-Type Current Transformer
Product Parameters:
MODEL:20-24 kV Outdoor Oil-Type Current Transformer
· Oil immersed current transformer
· Single phase
· Rated voltage: 15kV, 17.5kV, 20kV, 22kV, 24kV
· Metering class for CT: 0.2S, 0.2, 0.3, 0.5, 0.5S, 0.6
· Standard: IEC, ANSI, GB
· Type name: LJW-20， LJW-24， LJW-22
General
This outdoor oil immersed type current transformer used in 15kV, 17.5kV, 20kV, 22kV and 24kV power system, for measuring and protection.
It has been used in outdoor pole mounted and transmission line.
The current transformer is made from high quality transformer oil, amorphous alloy core for metering and high quality CRGO core for protection, primary and secondary use pure electrolytic copper, both winding and core have shielding
Standard
All UNISUN Electric instrument transformers are in conformity with IEC standards, and recommendations IEC 61869. Transformers in conformity with specific country standards can also be supplied. (IEEE C57.13, NBR6855).
Specification data she
| Rated primary current(A) | Accuracy classes combination | Accuracy class and output (VA) | Short-time thermal current(kA/1s) | Rated dynamic current(kA) | ||||||
| 0.2s | 0.2 | 0.5s | 0.5 | 10p10 | 10p15 | 10p20 | ||||
| 5 | 0.2S/10P10 0.2S/10P15 | 10 | 10 | 10 | 10 | 15 | 15 | 15 | 0.5 | 12.5 |
| 10 | 1 | 2.5 | ||||||||
| 15 | 1.5 | 3.75 | ||||||||
| 20 | 2 | 5 | ||||||||
| 25 | 2.5 | 6.25 | ||||||||
| 30 | 3 | 7.5 | ||||||||
| 40 | 4 | 10 | ||||||||
| 50 | 5 | 12.5 | ||||||||
| 75 | 7.5 | 18.75 | ||||||||
| 100 | 10 | 10 | 10 | 10 | 15 | 15 | 15 | 10 | 25 | |
| 150 | 15 | 37.5 | ||||||||
| 200 | 20 | 50 | ||||||||
| 300 | 30 | 75 | ||||||||
| 400 | 40 | 100 | ||||||||
| 500 | 50 | 75 | ||||||||
| 600 | 15 | 15 | 15 | 15 | 20 | 20 | 20 | 60 | 150 | |
| 800 | 80 | 200 | ||||||||
| 1000 | 15 | 20 | 15 | 30 | 30 | 30 | 20 | 80 | 200 | |
| 1200 | 80 | 200 | ||||||||
| 1500 | 80 | 200 | ||||||||
| 2000 | 80 | 200 | ||||||||
- Products can be customized by customer requirements, above data is standard data, customized data please contact us.
- Products can be customized by customer requirements, above dimension may change, correct dimension please contact us.
Main Structure
A current transformer (CT) primarily consists of five major components: the iron core, the primary winding, the secondary winding, the insulation system, the housing, and the terminals. These components work together to achieve current transformation and electrical isolation.
- Iron Core — Magnetic Flux Path
- Primary winding — Series current-carrying
- Secondary Winding — Inductive Output
- Insulation—A Safety Barrier
- Housing & Accessories
Primary winding
High electrolytic copper is used as primary winding, silver base welding material is used at the welding place, and semiconductor shielded paper is wrapped to ensure that the partial discharge tseting data is qualified.
Secondary winding
Large capacity design secondary winding, automatic winding, high insulation and high purity enameled wire, to ensure wide capacity output under standard accuracy.
Key Product Benefits
