HT vs LT Electrical Panels Explained

A technical comparison of High Tension (HT) and Low Tension (LT) electrical panels, their functions, and applications.

Electrical power distribution in industrial facilities involves both HT and LT systems.

**HT Panels (High Voltage Distribution)**
Voltage Range: Above 1 kV

Functions:
- Receive utility power
- Control high voltage supply
- Feed transformers

Applications:
- Large industries
- Manufacturing plants
- Power distribution networks

**LT Panels (Low Voltage Distribution)**
Voltage Range: Up to 1 kV

Functions:
- Distribute power to equipment
- Motor control
- Lighting distribution

Types:
- PCC panels
- MCC panels
- Distribution boards

**Key Differences**

| Feature | HT Panel | LT Panel |
|---------------|-------------------|----------------------|
| Voltage Level | High | Low |
| Purpose | Power intake | Power distribution |
| Location | Substation | Facility interior |

**Why Proper Coordination Matters**
Improper coordination causes overload, tripping, or equipment failure.