Current transformer LVB / IMT (40.5 - 550 kV)
Reliable oil-insulated top core design current transformer for outdoor use
LVB/IMT oil-insulated current transformer for outdoor installations are based on a top core design with metallic expansion bellow. All our current transformers are built-to-order to customer specifications. Their optimized design withstands a wide range of primary currents and meet customers’ demand on high current rating, low temperature rise in operation, strict control compression ratio and compressive strength with multi-limit safe sealing.
The LVB/IMT is a reliable product with minimum maintenance and suitable for wide range of environmental conditions.
Applications
- Revenue metering
- Protective relaying
- System control and indication of power flow
Why Hitachi Energy?
- Optimized insulation design and processing technic for enhanced reliability with outstanding insulation
- LVB/IMT current transformer can meet the requirements for large capacity of power system and reclosing operation with transient protection windings
- It is designed for wide range of environmental conditions from tropic to polar climate
Brief performance data
| LVB/IMT | |
|---|---|
| Installation | Outdoor |
| Design | Top-core type |
| Insulation | Oil-paper |
| Highest voltage for equipment |
40.5 - 550 kV |
| Max. primary current | Up to 4000 A |
| Short-circuit current | Up to 63 kA/3s |
| Insulators | Porcelain (silicon rubber optional) |
| Creepage distance | ≥ 31 mm/kV (longer on request) |
| Service condition | |
|
-40 ºC to +40 ºC (standard) |
|
Maximum 1000 m (standard) |
| *Other temperatures and altitudes are possible | |
| Accuracy | Meets all IEC andIEEE metering and protection classes |
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