Case

Project Background

The local power utility was facing the following problems:

• Aging overhead lines
• Frequent line damage caused by typhoons
• Long power outage restoration time

Project Challenges

• Lack of a sectional protection system
• Outage of the entire feeder line
• Fault detection relying on manual work

Solution

The following equipment was installed:

• ZW32-12 / ZW32-24 Circuit Breaker System
• Distribution Transformer
• Integration of Ring Main Unit (RMU) for Feeder Control

System Flow

Substation → ZW32 Sectional Circuit Breaker → Distribution Line → User

Project Outcomes

• Faster fault isolation speed
• Reduced power outage scope
• Improved power grid resilience during storms