Description

11 kV Metering Cubicle Components

1. Enclosure:
   • Weatherproof and corrosion-resistant.
   • Durable materials (steel/aluminum).
2. Busbars:
   • Copper or aluminum for high conductivity.
   • Connects incoming supply to metering devices.
3. Metering Equipment:
   • Energy Meter: Measures voltage, current, power factor, and energy.
   • Current Transformers (CT):
     • 3 Nos. Class 0.2S CTs.
     • Accurate and minimizes measurement errors.
   • Potential Transformer (PT):
     • 1 No. Class 0.2S PT.
     • Scaled down voltage (e.g., 11 kV/110 V).
4. Protection Devices:
   • Circuit breakers or fuses for overload protection.
   • Surge protection devices.
5. Control Circuitry:
   • Relays and contactors for operational control.
   • Clearly labeled terminals.
6. Wiring:
   • Properly rated and insulated.
   • Clear labeling for easy identification.
7. Grounding System:
   • Effective grounding for safety and performance.
8. Accessories:
   • Terminal blocks for CT/PT connections.
   • Status indicators (LEDs/analog meters).

Class 0.2S Specification

• Accuracy: ±0.2% for precise metering.
• Reliability: Stable output across operating conditions.