# HT Panel (High Tension Panel) and LT Panel (Low Tension Panel)

**URL:** <https://forumautomation.com/t/ht-panel-high-tension-panel-and-lt-panel-low-tension-panel/13912>\
**Category:** Electrical\
**Tags:** controlsystem\
**Created:** [March 3, 2026, 3:48pm UTC](https://forumautomation.com/t/ht-panel-high-tension-panel-and-lt-panel-low-tension-panel/13912 "2026-03-03T15:48:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Rabert](https://forumautomation.com/user_avatar/forumautomation.com/rabert/32/6784_2.png) [@Rabert](https://forumautomation.com/u/Rabert)\
**Post date:** [March 3, 2026, 3:48pm UTC](https://forumautomation.com/t/ht-panel-high-tension-panel-and-lt-panel-low-tension-panel/13912/1 "2026-03-03T15:48:50Z")

</div>

# HT Panel (High Tension Panel) and LT Panel (Low Tension Panel)

## 1). HT Panel (High Tension Panel)

​The **[HT panel](https://forumelectrical.com/what-is-ht-panel-explains-its-working-principle-functions-and-different-types/)** is the entry point for bulk power in the large facilities.

It handles electricity that is coming directly from the grid before it is stepped down by a transformer.

​ **Voltage Range**

Typically handles 11kV (11,000V), 33kV (or) higher.

​ **Key Component**

It uses a VCB (Vacuum Circuit Breaker) (or) SF6 Breaker.

These are designed to quench the massive electrical arcs that occur when breaking high voltage (HV) circuits.

​ **Function**

It receives high-voltage power that protects the downstream transformer from surges and allows for safe switching of the primary supply.

​ **Location**

Installed between the utility company line and the consumers stepdown transformer.

 ![image](https://cdn.forumautomation.com/original/2X/3/3d287c2cfffa094e0220d007e97dccca0846b8ff.jpeg)

## ​2). LT Panel (Low Tension Panel)

​The **[LT panel](https://forumelectrical.com/fat-procedure-for-low-voltage-electrical-panels-mcc-swbd-and-swgr/)** is the “distribution hub.”

Once the transformer converts high voltage into a usable level (like 415V for industries or 230V for homes), the LT panel takes over.

​ **Voltage Range**

Works with voltages below 1000V (usually 415V three-phase).

​ **Key Components**

Uses ACB (Air Circuit Breakers), MCCB (Molded Case Circuit Breakers), and MCBs.

​ **Function**

It receives power from the transformer’s secondary side and distributes it to various loads (motors, lights, machinery, or sub-panels).

​ **Location**

Installed after the transformer, usually inside a dedicated electrical room of a building or factory.

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