1 Answer
The range of a Current Transformer (CT) ratio depends on the application and the specific CT design, but typically, the CT ratio can vary from as low as 1:1 (in some special cases) to as high as 5000:1 or even higher.
Here's a breakdown of the range based on typical uses:
1. **Low Voltage Systems**: For systems operating at lower voltage (like household or industrial applications), CT ratios usually range from **5:1** to **400:1**.
2. **Medium to High Voltage Systems**: For power generation or large industrial systems, CT ratios can range from **200:1** to **5000:1**, or more, depending on the maximum current expected in the system.
The CT ratio reflects the primary current to secondary current, and itβs chosen to match the requirements of the protection or metering device. For example, a 2000:5 CT means that for every 2000 amps on the primary side, the secondary side will have 5 amps.
Let me know if you need further details!
Here's a breakdown of the range based on typical uses:
1. **Low Voltage Systems**: For systems operating at lower voltage (like household or industrial applications), CT ratios usually range from **5:1** to **400:1**.
2. **Medium to High Voltage Systems**: For power generation or large industrial systems, CT ratios can range from **200:1** to **5000:1**, or more, depending on the maximum current expected in the system.
The CT ratio reflects the primary current to secondary current, and itβs chosen to match the requirements of the protection or metering device. For example, a 2000:5 CT means that for every 2000 amps on the primary side, the secondary side will have 5 amps.
Let me know if you need further details!