Power Systems
HT/LT Line and Power Distribution System
High Tension (HT) and Low Tension (LT) systems form the backbone of power distribution. They ensure safe, efficient delivery of electrical energy from substations to end users.
Introduction
Power distribution converts high-voltage transmission electricity into usable voltage levels. HT lines carry electricity at higher voltages like 11kV or 33kV, while LT lines deliver it safely at 230/400V to consumers.
High Tension (HT) Lines
- Purpose: Transmit large power with minimum loss.
- Voltage Levels: 11kV, 33kV, 66kV or higher.
- Components: Conductors, insulators, poles, circuit breakers.
Low Tension (LT) Lines
- Voltage Level: 230V (single-phase) or 400V (three-phase).
- Components: Transformers, service lines, distribution panels.
- Safety: Proper earthing and protection devices are essential.
Design and Maintenance
Load Management: Accurate load estimation ensures optimal conductor sizing and minimizes voltage drop.
Safety & Earthing: Proper earthing prevents electric shocks and ensures system stability during faults.
Key Benefits
- Reduced transmission losses.
- Reliable and continuous power supply.
- Improved safety and performance.
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