20kV Epoxy-Cast Current Transformers for Indoor Application
About the Product
These indoor-use, epoxy-cast current transformers for 20~24kV power systems are designed to be used with energy meters or protective relays. Available in single-core, two-core, and three-core models, these CTs can be custom-made to meet various specification requirements (e.g. burden and accuracy) and electrical standards (e.g. IEC, IEEE). Special designs and features may also be requested. Insulated with Araldite® epoxy resin, these products are characterized by a high level of moisture resistance, electrical performance, and mechanical strength. These general-use current transformers have been distributed to various countries for 30 years and have consistently met with outstanding customer satisfaction.
Please refer to the selection table below for the most commonly requested specifications (other specifications are available upon request).
- Related Products
2-core epoxy-cast current transformer for a ≦24kV power system. For use with measuring or monitoring instruments, and protective relays. “U-shaped top” design for safety and for a shorter distance between two current transformers installed side-by-side, thus reducing the required width of the switchgear panel.
2-core current transformer for a 20~24kV power system. Used in conjunction with measuring or monitoring instruments, and with protective relays. Epoxy cast. Designed to have greater creepage, it is appropriate for polluted regions.
Current transformers for installation in a switchgear panel of a 25kV (max.) power system and to be used with measuring or monitoring instruments, or protective relays. These are economic models suited to locations of high humidity or moderate pollution. The insulation material for the core and the secondary coil is Araldite® epoxy resin.
2-core current transformers designed for 12kV (max.) power systems for use with measuring (or monitoring) instruments and protective relays, these products are cast in Araldite® epoxy and meet the requirements of all major electrical standards.
When a power system is in operation, it is imperative that the secondary of the current transformer(s) should not have an open circuit. When an open circuit occurs, an extremely high transient voltage will be induced, which can in turn damage the current transformers and the instruments at the secondary, or even posing a threat to personal safety. This CT secondary overvoltage protector offers protection from such accidental damage caused by secondary transient voltage.
- Download Materials
Easy-to-print document, containing product description, pictures, various models and frequently requested specifications.
How to select, based on application and power system attributes, the primary and secondary currents, burden, accuracy, rated frequency, type (indoor vs. outdoor), insulation material, etc.