Home > Products > Current transformer > LB7 Current Transformer 40.5kV-145kV
LB7 Current Transformer 40.5kV-145kV
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Product Details
| Model Number | LB7 |
Product Description
Current transformer 40.5 - 145 kV
Reliable and safe outdoor instrument transformer
Current transformer type LB is based on hairpin design with oil-paper insulation and metallic expansion bellow, mainly foroutdoor installations. It is a reliable product for metering and protection in high-voltage networks.
Features
Designed and tested in accordance with latest IEC specification
Safe sealing slows the aging process and extends product life
Corrosion resistance: stainless steel expansion bellows and oil tank coated with water-proof, mould-proof and salt-proof painting
Benefits
Easy installation and commissioning
Maximum reliability and minimal maintenance
Suitable for wide range of environmental conditions
Good seismic performance
Type | LB7-40.5 | LB7-72.5 | LB7-126 | LB7-145 | |
Highest voltage | kV | 40.5 | 72.5 | 126 | 145 |
Rated current | A | 2X50-2X1000, 100-2000 | 2X50-2X1500, 100-3150 | ||
Short-time thermal current | kA/s | 100 Ipr/1- 50/3 | 45-50/3 | ||
Rated dynamic current | kA | 250 Ipr-125 | 115-125 | ||
Rated insulation level | kV | 40.5/95/200 | 72.5/160/350 | 126/230/550 | 145/275/650 |
Dielectric dissipation factor | 0.02 | 0.005 | 0.005 | 0.005 | |
Rated sencondary current | A | 1, 5 | |||
Rated frequency | Hz | 50/60 | |||
Measurement and protection accuracy class |
| IEC 61869-2 0.1, 0.2S, 0.5S, 0.2, 0.5/5P, 5PR, 10P, 10PR, PX, PXR, TPZ, TPX, TPY IEEE C57.13 0.15, 0.15S, 0.3, 0.6, 1.2/C100, C200, C400, C800, X | |||
Rated burden and instrument security factor of measuring class |
| 1-200 VA, Fs≤5 | |||
Rated burden and accuracy limit factor of protective class |
|
1-200 VA, 5P10- 5P40/10P10- 10P40 | |||
Insulator creepage distance | mm/kV | ≥25, 31 | |||
Contact Us
- Hunan Union Electric Corp.
- Address, Changsha, Hunan
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