Huaming LW38-126/T3150-40 High Pressure SF6 Circuit Breaker Installation Manual

About this manual

This manual describes the LW38‑126/T3150‑40 high‑pressure SF6 circuit breaker manufactured by Huaming. It outlines the product’s purpose, typical applications, and environmental limits such as temperature and altitude.

The document includes technical parameters, a detailed description of the breaker’s structure and operating principle, step‑by‑step installation and commissioning procedures, testing methods, maintenance and repair instructions, a list of accessories and tools, and ordering information. This manual is written in Chinese.

What's inside

• Overview
• Product Structure and Principle
• Installation and Commissioning
• Maintenance and Repair
• Accessories and Tools
• Ordering Information

Specifications

Frequently asked questions

What temperature range can the breaker operate in?

It can operate from –30 °C up to +40 °C.

How many poles does the LW38-126/T3150-40 breaker have?

The breaker consists of three single‑pole units mechanically linked together.

What gas is used for arc extinguishing in this breaker?

The breaker uses SF6 (six‑fluorine sulfur) gas for arc extinguishing.