INDUSTRIES > POWER EQuIPMENT > CURRENT TRANSFORMERS > 3.6–7.2 kV Current Transformers
Epoxy Resin Cast Current Transformers
Cast for Control
Our 3.6–7.2 kV CT series is designed for measurement, monitoring, and protection in motor control panels and related equipment. Available configurations include single and double core, coil molded, terminal type, and window type, with Huntsman Araldite® epoxy resin as the primary insulation material.
Units can be manufactured to IEC, IEEE, and other international standards, with customization, outdoor variants, and ODM/OEM services available on request.
All units are type-tested and routine-tested through a TAF-accredited (ILAC member) laboratory. We offer a wide range of specifications alongside customization and ODM/OEM services, making these CTs a proven choice for utilities, factories, and major infrastructure projects worldwide.
3.6 kV Current Transformer,
Coil Molded
EW-3S
Intended for measuring or monitoring instruments, this coil molded current transformer for indoor use is insulated with Araldite® epoxy resin. Often used with the main panel or the motor control panel of a 3.6kV (max.) power system, this current transformer is compact and easy to install. It features a fine exterior and excellent electrical performance.
Two-Core Coil Molded Current Transformer with Cut Cores, 3.6 kV
EW-3C
Often used with the main panel or the motor control panel of a 3.6kV (max.) power system, this indoor, two-core (core type: cut-core) current transformer is good for protection and is suited to measuring and monitoring instruments. Compact, easy to install, and insulated with Araldite® epoxy resin, this medium-voltage coil molded current transformer has a fine exterior and provides excellent electrical performance.
3.6 kV / 7.2 kV Current Transformers (1-Core / 2-Core & Single-Ratio / Dual-Ratio Options)
CR-3(6)S-T Series
Insulated with Araldite® epoxy resin and intended for the main panel or the motor control panel of a 3.6 or 7.2 kV power system, each of these current transformers for indoor usage has a busbar terminal and is designed to be used in conjunction with measuring or monitoring instruments, or with protective relays.
The two-core model CR-6S-80T is available with a primary current rating of 500～3000A. When offered with a rated primary current of 800A or above, this model has an added tap in the secondary winding and can be used as a dual-ratio CT.
These current transformers are moisture resistant and mechanically robust, while providing excellent electrical performance.
- Standard: IEC or IEEE*
- Application: Indoors, epoxy-cast type
- Construction: Insulated with Araldite® epoxy resin
- Frequency: 50 or 60 Hz
- Single-Core/Two-Core
- Single-Ratio/Dual-Ratio
- Burden Rating: ≦ 3.6 kV (Model: CR-3S-60T/90T) or ≦ 7.2 kV (Model: CR-6S-80T)
** When offered with a rated primary current of 800A or above, this model has an added tap in the secondary winding and can be used as a dual-ratio CT.
3.6 kV Two-Core Epoxy-Cast Current Transformer
ER-3C
Designed to offer a higher rated current ratio, this indoor two-core epoxy-cast current transformer is suited to the main panel or the motor control panel of a 3.6kV (max.) power system and can be used in conjunction with measuring or monitoring instruments, or with protective relays. Insulated with Araldite® epoxy resin, the ER-3C has excellent moisture resistance and provides superior electrical performance. Easy to install, this current transformer also has a pleasing design.
- Standard: JIS, IEC or IEEE*
- Application: Indoors
- Construction: Epoxy-cast model, insulated with Araldite® epoxy resin
- System Voltage: ≦ 3.6 kV
- Frequency: 50 or 60 Hz
- AC/BIL: 10/40kV
- Rated Current Ratio: Single-ratio or dual-ratio types
- Approximate Weight: 11 kg
Epoxy-Cast Window-Type Current Transformers for Indoor Application, 3.6 kV
CR-3S Series
Insulated with Araldite® epoxy resin and designed for indoor use, these window-type current transformers are suited for the main panel or motor control panel of a medium-voltage (≦ 3.6 kV) power system. Good for protection and appropriate for measuring and monitoring instruments, these current transformers are available in both 2-core and single-core models. The window-type design facilitates installation and wiring with a busbar or insulated cables, which decreases the occurrence rate of contact point failure. The CR-3S Series current transformers are characterized by a high degree of moisture resistance, as well as superior physical and electrical properties.
- Standard: IEC or IEEE
- Application: Indoors
- Construction: Two-core or single core epoxy-cast model, insulated with Araldite® epoxy resin
- Rated Voltage: ≦ 3.6 kV
- Frequency: 50 or 60 Hz
- AC/BIL: 10/40kV
* Window diameter varies according to models
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