Three-Phase Overvoltage and Undervoltage Protector

Three-Phase Overvoltage and Undervoltage Protector is a power protection device designed to monitor and safeguard three-phase electrical systems against abnormal voltage conditions. It automatically isolates the load when voltage exceeds or drops below preset limits, ensuring stable operation of industrial and commercial equipment.

Table of Contents

Product Overview

The Three-Phase Overvoltage and Undervoltage Protector continuously supervises voltage levels across all three phases. When unsafe voltage conditions are detected, the device responds instantly to protect connected equipment from damage caused by voltage instability.

With adjustable protection parameters, it can be precisely configured to match local grid characteristics, making it suitable for diverse operating environments and export markets.

Protection Functions

  • Overvoltage protection for three-phase systems

  • Undervoltage protection to prevent malfunction and overheating

  • Phase-by-phase voltage monitoring

  • Automatic load disconnection during abnormal conditions

  • System recovery after voltage normalization (depending on configuration)

Functional Characteristics

  • Phase Type: Three-phase

  • Protection Logic: Voltage threshold monitoring and control

  • Parameter Adjustment: Customizable voltage settings

  • Response Behavior: Fast isolation of protected circuits

  • Installation: Suitable for integration in power distribution panels

FAQ

Because imbalance or abnormal voltage in any phase can damage motors and reduce equipment lifespan.

 

Yes, adjustable parameters allow adaptation to various grid standards and operating environments.

 

Yes, it is designed for long-term monitoring and protection of three-phase power systems.

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Interested in this product? Please fill out the form below to receive a detailed quote or more information.

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