High Accuracy Current Transformer for Smart Meter Application

Customer Background

The customer is a smart energy meter manufacturer from USA, specializing in residential and industrial energy management systems. They required a compact and highly accurate current transformer for their new generation smart meters.

Challenge

The customer faced several challenges with their previous supplier, including unstable accuracy performance under temperature variation, inconsistent batch quality, and limited PCB installation space.

Our Solution

Our engineering team provided a customized PCB mounting current transformer using nanocrystalline core material. The solution features:

• High accuracy performance up to Class 0.5
• Excellent linearity and temperature stability
• Compact structure for limited PCB space
• Stable batch consistency for mass production
• Compliance with IEC standards

Result

After implementation, the customer successfully improved the measurement stability of their smart meters while reducing PCB occupied area by 30%. The solution also helped lower overall production costs and improved long-term reliability.

Application

Smart Energy Meter / Power Monitoring System