Table of Contents
What Is State Grid Series Current Transformer？
Working Conditions of the State Grid Series Current Transformer
- Installation Site: Strictly designed for indoor installation
- Ambient Temperature: The operating temperature range is -5℃ ~ 40℃
- Ambient Humidity: The relative ambient humidity shall not exceed 80%
- Altitude Condition: Suitable for working altitude ≤1000m
- Atmospheric Requirement: The surrounding air must be clean without serious impurities
Product Parameters
| Current ratio (A) | Secondary load (VA) - Class 0.5S | Secondary load (VA) - Class 0.2S |
|---|---|---|
| 5/5 | 5 | 5 |
| 10/5 | 5 | 5 |
| 15/5 | 5 | 5 |
| 20/5 | 5 | 5 |
| 25/5 | 5 | 5 |
| 30/5 | 5 | 5 |
| 40/5 | 5 | 5 |
| 50/5 | 5 | 5 |
Why Choose ZHIMING's State Grid Series Current Transformer?
State Grid Standard Compliance & Reliable Quality
This CT series follows IEC 61869 international standard and meets State Grid power distribution procurement specifications. Every current transformer undergoes strict factory inspection with stable electrical performance. It is highly compatible with national power grid projects,
Premium Unsaturated Resin Casting Insulation
Adopting unsaturated resin casting process, the integrated sealed structure provides excellent insulation, dustproof, moistureproof and anti-corrosion performance. The resin shell can effectively resist temperature change and mechanical impact, preventing internal coil damage.
Flexible Customization
The current transformer supports diversified customized parameters. Customers can confirm bus width, current ratio, secondary rated output and accuracy class according to actual demands.
Accurate Metering & Stable Output Performance
Optimized internal coil and iron core structure ensure low magnetic leakage and high measurement precision. It can accurately convert primary large current into standard secondary current (such as 5A).
Simple Fixed Installation & Low Maintenance Cost
The compact overall structure adopts fixed installation method, which is easy to locate and install in distribution cabinets without complicated assembly steps. The integrated casting structure requires no daily maintenance.
