20kV Two-Core Current Transformer (for Polluted Regions)
About the Product
This two-core current transformer is designed for a 20~24 kV power system and is intended to be used in conjunction with measuring or monitoring instruments, and with protective relays. Insulated with Araldite® epoxy, this indoor-use current transformer is designed to have greater creepage, allowing the current transformer to be provided to regions with harsh environmental factors such as high humidity, salty air, dust, etc.
- Cast in Araldite® epoxy resin
- For indoor application in polluted regions
- Standards: IEC or IEEE
- System Voltage: ≦ 24kV
- Frequency: 50/60 Hz
- AC/BIL: 50/125 kV
- Additional specification or customization may be requested to comply with various electrical standards or special requirements.
Burden / Accuracy
5A or 1A
5A or 1A
30VA/5P20 + 30(15)VA/1.0(0.2)
- Related Products
EWF-20DA, EWF-20DB, EWF-20DD, EWF-20DE, EWF-20DS
For use in conjunction with energy meters or protective relays. Available in single-core, 2-core, and 3-core models. Insulated with Araldite® epoxy resin. Custom-made to meet various requirements.
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.
Current Transformers / Extended Range Current Transformers (ERCTs) for Billing, 10~30kV Outdoor Type
Used for power monitoring or as part of an MOF (Metering Outfit) for a 12~36kV power system, these outdoor CTs for billing are insulated with Araldite® UV-resistant cycloaliphatic epoxy. Accuracy 0.15S~0.3; burden B-0.5. Available as Extended Range Current Transformers (ERCTs) if requested.
Cast in Araldite® UV-resistant cycloaliphatic epoxy resin, these medium-voltage potential transformers for billing are designed for long-term outdoor use in harsh conditions such as solar ultraviolet radiation, salt fog, high temperature, and high humidity. Designed to be part of a Metering Outfit (MOF).
Indoor-use potential transformers for 36kV (max.) power systems. IEC type testing & environmental testing (-45℃~65℃). The choice of major corporations of numerous countries. Insulated with Araldite® epoxy resin. Superior moisture resistance.
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, specifications, and a selection table.
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.