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Lrbt-40.5/72.5/126/145/252/363/420/550
1. Product Description
This series of current transformer secondary coils can be used in a variety of power products such as GIS/HGIS combination electrical appliances, GCB can-type circuit breakers, open-type current transformers, transformers, etc., to provide accurate current signals for the secondary measurement, metering, protection, and transient protection equipment of the power system.
2. Main features
• Adopting PET polyester film with excellent electrical performance as an insulating material.
• External coil with waterproof layer, waterproof and moisture-proof, suitable for air operation environment.
• Built-in coil without waterproof layer, suitable for low water environments, such as SF6 or mixed gas.
3. Main Technical Parameters
| Voltage level (kV) | 40.5/72.5/126/145/252/363/420/550 |
| Rated frequency (Hz) | 50 or 60. |
| Accuracy level (combination on demand) | 0.1,0.2,0.5,1,3,0.2S,0.5S,5P,10P,5PR,10PR, PX, PXR, X, PS, TPY, TPS, TPX, TPZ |
| Rated primary current (A) | 75~8000 |
| Rated secondary current (A) | 1,2,5 |
| Rated load (VA) | 1~200 |
| Secondary winding frequency withstand voltage (kV) | 3 |
| Secondary winding turn-to-turn withstand voltage (kV) | 4.5 |
1. Product Description
This series of current transformer secondary coils can be used in a variety of power products such as GIS/HGIS combination electrical appliances, GCB can-type circuit breakers, open-type current transformers, transformers, etc., to provide accurate current signals for the secondary measurement, metering, protection, and transient protection equipment of the power system.
2. Main features
• Adopting PET polyester film with excellent electrical performance as an insulating material.
• External coil with waterproof layer, waterproof and moisture-proof, suitable for air operation environment.
• Built-in coil without waterproof layer, suitable for low water environments, such as SF6 or mixed gas.
3. Main Technical Parameters
| Voltage level (kV) | 40.5/72.5/126/145/252/363/420/550 |
| Rated frequency (Hz) | 50 or 60. |
| Accuracy level (combination on demand) | 0.1,0.2,0.5,1,3,0.2S,0.5S,5P,10P,5PR,10PR, PX, PXR, X, PS, TPY, TPS, TPX, TPZ |
| Rated primary current (A) | 75~8000 |
| Rated secondary current (A) | 1,2,5 |
| Rated load (VA) | 1~200 |
| Secondary winding frequency withstand voltage (kV) | 3 |
| Secondary winding turn-to-turn withstand voltage (kV) | 4.5 |
