LRZ(B)1-20 Current Transformer 12,000/5A
LRZ(B)1-20 Current Transformer 15,000/5A
Type LRZ(B)1-20 current transformer is plug-in generator sleeve type, and for measuring the current and energy or relay protection in main circuit of 300 MW or 600 MW generator.
The products have good shield and are suited for installation at the strong magnetic field of generator.
It's performance of insulation, antidamp and mildewed is good for damp and hot area.
The products have good shield and are suited for installation at the strong magnetic field of generator.
It's performance of insulation, antidamp and mildewed is good for damp and hot area.
| Rated current ratio (A) | Accuracy class | Rated output (VA) | Accuracy limit factor | Short time thermal current (KA) (1S) | Rated insulation level (KV) | Standard | Note |
|---|---|---|---|---|---|---|---|
| 12,000/5 | 0.2, 10P | 50, 200 | 20 | 60 times | 23/3 | IEC185-1987 | Use for 300 MW generator |
| 15,000/5 | 0.2, 10P | 50, 200 | 20 | - | 23/3 | IEC185-1987 | Use for 600 MW generator |
| 25,000/5 | 0.2, 10P | 50, 200 | 20 | 20 times (3S) | 23/3 | IEC185-1987 | Use for 600 MW generator |
Features
- It can be used for protection, and 0.2 class measurement as well.
- It use double-shield to weaken the affect of heavy current magnetic field of generator.
- The insulation is B class, and allow a higher temperature rise. It can operate in surrounding which changes in a big range.
- The performance of accuracy class, burden, accuracy limit factor and shield is better than the other product.
Main Products
Casting Insulated Current Transformer, Oil-Immersed Insulated Current Transformer, Casting Insulated Voltage Transformer, Oil-Immersed Insulated Transformer