Description

The JaiDurga 11 kV HTCT 300/5A Class 0.2S is a High Tension Current Transformer (HTCT) used in medium-voltage electrical systems, specifically designed for 11 kV networks. This type of current transformer is used for measuring high current levels safely and accurately in electrical systems, enabling applications such as energy metering, load monitoring, and system protection. Below is a detailed description of its key specifications and features:

Key Specifications of JaiDurga 11 kV HTCT 300/5A Class 0.2S:

1. Voltage Rating:
   • 11 kV: The transformer is designed for use in 11 kV systems, which are commonly found in medium-voltage power distribution networks, substations, and industrial installations.
2. Current Ratio:
   • 300/5A:
     • Primary Current: 300 A (the current flowing through the high-voltage side).
     • Secondary Current: 5 A (the stepped-down current on the secondary side, used for measurement and protection).
     • The 300/5A ratio means the current transformer reduces the 300 A primary current to 5 A on the secondary side. This makes it safe to use for instrumentation, meters, and relays in monitoring and protecting electrical systems.
3. Accuracy Class:
   • Class 0.2S:
     • Class 0.2S indicates that the current transformer has a high accuracy level of ±0.2% under normal conditions, which is vital for precise measurement in metering and protection applications.
     • The S in 0.2S denotes that this transformer is suitable for special metering applications where high-precision current measurement is required, such as in revenue metering (for billing purposes), energy management, and load measurement.
4. Application:
   • Current Measurement: The transformer is used for accurately measuring high electrical currents in medium-voltage 11 kV systems.
   • Energy Metering: Ideal for energy metering applications, especially where precise measurement is required for accurate billing and load monitoring.
   • Protection Systems: The current transformer is used in protection schemes to help detect overcurrent conditions and trigger protective measures (such as tripping a circuit breaker).
   • Substations and Power Distribution Networks: Widely used in electrical substations, switchgear, and power distribution systems to provide accurate current readings for efficient power management.
5. Physical Characteristics:
   • Insulation: Typically, the current transformer is filled with oil or resin for electrical insulation, ensuring it can safely operate at high voltages.
   • Mounting: Designed to be installed in electrical switchgear, panels, or busbars in substations or industrial plants, providing safe and accurate current measurement.
   • Durability: Built to withstand harsh environmental conditions, ensuring long-term reliability and consistent performance in industrial and utility environments.
6. Compliance and Standards:
   • The JaiDurga 11 kV HTCT 300/5A Class 0.2S is designed to meet industry standards such as IEC 61869 or IS 2705 (Indian Standard for Current Transformers), ensuring compliance with international norms for construction, performance, and accuracy.
   • The transformer also adheres to the necessary standards for use in utility networks and commercial installations, providing assurance of safety and reliability.