Description

The Eltech 11 kV HTCT 10/5A Class 0.2S is a High Tension Current Transformer (HTCT) used to measure and monitor high currents in 11 kV electrical systems, commonly found in power distribution and industrial applications. Here’s a detailed description of the key specifications and features of the Eltech 11 kV HTCT 10/5A Class 0.2S:

Key Specifications of Eltech 11 kV HTCT 10/5A Class 0.2S:

1. Voltage Rating:
   • 11 kV: The current transformer is designed for use in electrical systems with a nominal voltage of 11 kV. This voltage level is common in medium-voltage power distribution networks, industrial plants, and substations.
2. Current Ratio:
   • 10/5A:
     • Primary Current: 10 A (the high-voltage side current).
     • Secondary Current: 5 A (the scaled-down current for safe measurement and protection).
     • The 10/5A ratio means the CT steps down the primary current of 10 A to 5 A on the secondary side, allowing the secondary current to be safely used for measurement by instruments such as energy meters, protection relays, or for diagnostic purposes.
3. Accuracy Class:
   • Class 0.2S:
     • The 0.2S class means that the current transformer provides a high level of accuracy (±0.2%) under normal operating conditions.
     • The S in 0.2S indicates that the CT is suitable for special metering applications where precise measurements are required (such as in revenue metering, billing, or high-precision monitoring).
     • This level of accuracy is critical in applications that demand minimal error margins for both energy measurement and protection.
4. Application:
   • Energy Metering: Used in high-voltage systems to measure the current accurately for billing and energy monitoring purposes.
   • Protection Systems: Works in conjunction with protection relays and circuit breakers to help detect overcurrent conditions and protect electrical equipment.
   • Power Distribution: Commonly used in substations and industrial plants where accurate current measurements are required for operational safety and performance monitoring.

• High Precision: Class 0.2S ensures minimal measurement error, suitable for revenue metering and high-accuracy energy monitoring.
• Voltage Rating: Rated for 11 kV, making it appropriate for medium-voltage distribution networks.
• Safety and Durability: Provides isolation between high-voltage and low-voltage circuits, ensuring safe operation while measuring high currents.
• Flexibility: Can be used in various applications such as metering, load monitoring, and protection in electrical distribution systems.

Applications in Industry and Power Systems:

1. Power Distribution Networks: Typically used in electrical substations and power distribution networks to monitor and control current flow, ensuring safe and efficient power delivery.
2. Energy Metering: Used in commercial, industrial, and utility metering systems for accurate energy measurement and billing, particularly in systems where precise current measurement is crucial for operational costs and power management.
3. Protection Systems: Critical in the protection of electrical equipment, especially in detecting overcurrent conditions that could lead to system failure or damage.
4. Industrial Power Systems: Used in large industrial plants and factories for safe, accurate current measurement and protection in their electrical systems.

Eltech 11 kV HTCT 5/5A Class – 0.2S This transformer boasts a class rating of 0.2S, making it ideal for precision and efficiency. Its compact design facilitates easy installation, while the durable materials used in construction offer longevity and resilience against environmental factors.