LZZBJ9-35 35kV Indoor Epoxy Resin Cast Current Transformer

The LZZBJ9-35 is a 35kV indoor dry-type current transformer designed with a one-piece epoxy resin cast body. It features a multi-skirt shed profile that provides sufficient creepage distance, anti-condensation performance, and pollution resistance. Its dual-core design allows one core for metering and the other for line protection, making it suitable for combined measurement and protection applications.

Because the transformer is dry-type and oil-free, it eliminates the risks of oil leakage and explosion associated with oil-immersed designs. It is typically installed in 35kV switchgear cabinets and complete switchgear assemblies. The epoxy resin casting also provides high mechanical strength, moisture resistance, and long-term maintenance-free operation.

CNYIHU manufactures a full range of current transformers and voltage transformers, including epoxy resin cast types for 10kV, 35kV, and other voltage levels. Our production utilizes epoxy resin APG machines and vacuum casting plants to ensure void-free insulation and consistent electrical performance. Products undergo routine tests such as power frequency withstand test, partial discharge test, and insulation resistance test before shipment. For manufacturing details, see our Current Transformer Manufacturing Process article.