Description

The Eltech 11 kV HTCT 25/5A Accuracy Class 0.2S DHBVN is a High Tension Current Transformer (HTCT) used in electrical systems to measure current at high voltages, specifically designed for use in 11 kV systems. Here is a detailed description of the product based on the model name:

Key Specifications of Eltech 11 kV HTCT 25/5A Accuracy Class 0.2S DHBVN:

1. Voltage Rating:
   • 11 kV: This current transformer is designed to operate in medium-voltage electrical systems with a nominal voltage of 11 kV. This is commonly found in industrial, commercial, and power distribution networks.
2. Current Ratio:
   • 25/5A:
     • Primary Current: 25 A (the current flowing through the high-voltage conductor).
     • Secondary Current: 5 A (the scaled-down current for safe measurement and monitoring by electrical instruments like energy meters and protective relays).
     • The 25/5A ratio indicates that the current transformer steps down 50 A on the primary side to 5 A on the secondary side for metering and protection purposes.
3. Accuracy Class:
   • Class 0.2S:
     • Accuracy Class 0.2S indicates that the current transformer has a high level of accuracy, providing an error margin of ±0.2% under normal operating conditions. The S in 0.2S signifies that the transformer is suitable for special metering applications that require very high precision (such as revenue metering and precise load measurement).
     • This level of accuracy ensures that the transformer is used for high-precision applications where accurate current measurement is critical for both protection and billing.
4. DHBVN:
   • DHBVN likely refers to Dakshin Haryana Bijli Vitran Nigam, a utility company based in Haryana, India. The transformer may be designed or certified specifically for use in areas served by DHBVN, which provides electricity to southern Haryana, including Gurgaon.
   • It may also indicate that this transformer model complies with the standards or specifications required by DHBVN for metering and protection purposes in their electrical networks.
5. Applications:
   • Current Measurement: Used for accurate measurement of high current in 11 kV distribution systems.
   • Energy Metering: Suitable for energy metering applications, especially for billing purposes in large industrial or commercial settings.
   • Protection: Works alongside protection relays to detect overcurrent conditions, helping to safeguard equipment from potential damage due to excessive current.
   • Power Distribution Networks: Ideal for use in electrical substations and switchgear panels, where high-precision measurement and protection are essential.