ct coil

ct coil Specification

High Voltage
Up to 33 kV (Primary Line)

Capacity
5 VA to 30 VA

Coil Material
Enamelled Copper/Aluminium Wire

Operating Temperature
-10C to +55C

Load Loss
Negligible (Below 1.5 W at Rated Condition)

Rated Voltage
Up to 1.2 kV

Cooling Type
Air Natural

Standard
IS 2705/IEC 60044-1

Low Voltage
1.2 kV (Insulation)

Dimension (L*W*H)
Outer Diameter: 65 mm to 140 mm (Varies as per Model)

Product Type
Current Transformer (CT) Coil

Material
ABS Plastic Body with Copper/Aluminum Winding

Output
5A / 1A (Secondary)

Frequency (MHz)
50-60 Hz

Efficiency
>98%

Phase
Single/Three Phase

Usage
Measurement and Protection in Electrical Systems

Coil Structure
Toroidal/Encapsulated

Coil Number
1 (Single Turn/Multiple as Required)

Power Scope
Up to 33kV Systems

Weight
Approx. 400-800 gm (Depending on Size)

Paint/Coating
Grey Epoxy Finish

Insulation Resistance
>1000 M at 500V DC

Core Material
Cold Rolled Grain Oriented (CRGO) Silicon Steel

Mounting Type
Panel / Busbar / Cable

Protection Level
Encapsulated and Safe for Touch

Accuracy Class
Class 0.5, 1.0, 3.0

Service Life
>10 years under Standard Conditions

Terminal Type
Screw/Nut Terminal

Humidity Range
Up to 95% (Non-Condensing)

Burden
5 VA - 30 VA

ct coil About

CT Coil

CT Coil is a high-quality current transformer coil designed for accurate measurement, monitoring, and protection of electrical current in power distribution and electrical systems. It provides reliable current sensing and helps ensure efficient operation of electrical equipment. CT coils are widely used in energy meters, protection relays, switchboards, control panels, and industrial electrical applications. They are available in various sizes, specifications, and configurations to meet different system requirements.

Advanced Design and Durability

Utilizing CRGO silicon steel for the core and an encapsulated structure, this CT coil delivers superior accuracy and minimal energy loss. The rugged ABS plastic body, protective grey epoxy coating, and screw/nut terminals ensure safe operation and long-lasting service, even in harsh environments with up to 95% humidity.

Versatile Application and Mounting

This CT coil is suitable for a wide range of electrical measurement and protection functions in single and three-phase systems up to 33kV. It accommodates various mounting types including panel, busbar, and cable installation, making it adaptable for diverse electrical setups in industrial, commercial, and utility infrastructures.

FAQ's of ct coil:

Q: How is this CT coil installed in electrical systems?

A: The CT coil can be mounted on panels, busbars, or cables, using its adaptable fixing options. Installation is straightforward thanks to the screw/nut terminal connections, ensuring secure electrical contact and rapid integration into existing systems.

Q: What are the benefits of using a CT coil with a CRGO silicon steel core?

A: A CRGO silicon steel core enhances the coil's accuracy and efficiency while maintaining negligible energy losses. This material choice helps achieve the product's high accuracy class (0.5, 1.0, 3.0) and extends the service life, making it suitable for precision measurement and protection.

Q: When should encapsulated and touch-safe CT coils be used?

A: Encapsulated and safe-for-touch CT coils are recommended in installations where operator safety and environmental protection are essential, such as in industrial switchgear or utility substations. Their protective housing shields against accidental contact and moisture ingress.

Q: Where can this CT coil be used?

A: This CT coil is ideal for applications in electrical measurement and protective circuits in industrial plants, utility substations, and commercial power distribution systems, accommodating systems up to 33kV and environments with high humidity or temperature variation.

Q: What is the main process for maintaining the CT coil?

A: Maintenance primarily involves periodic inspection to ensure the integrity of terminal connections and the encapsulation. As the product is designed for durability and safety with negligible load loss, it requires minimal maintenance under standard operating conditions.

Q: How does humidity affect the CT coil's performance?

A: Thanks to its encapsulated construction and secure housing, the CT coil can operate reliably in humidity levels up to 95% (non-condensing), maintaining stable insulation resistance and measurement accuracy even in challenging environments.

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