A Power Extraction Device is a specialized apparatus that extracts operational power directly from the current-carrying conductor it is monitoring. Its working principle is based on electromagnetic induction and power management technology. It employs a high-permeability toroidal core clamped around the primary conductor, which functions as a power current transformer. The alternating magnetic field generated by the load current induces a voltage in the secondary winding. This harvested AC power is then rectified, regulated, and stabilized by a sophisticated electronic circuit to provide a stable DC output, capable of powering connected devices like sensors or transmitters.
Product Features
1. Self-Powered Operation: Eliminates the need for external power sources or batteries by harvesting energy directly from the monitored conductor, enabling truly autonomous operation.
2. Wide Current Range Performance: Designed to operate across a broad range of load currents, from minimal loads to maximum capacity, maintaining consistent power output through advanced energy management.
3. Maintenance-Free and Safe: With no batteries to replace and complete electrical isolation from the primary circuit, it offers a highly reliable, maintenance-free solution with enhanced operational safety.
Common Applications
1. Smart Grid Monitoring: Powering wireless sensors and monitoring devices on overhead transmission lines and distribution networks.
2. Fault Indicators and Line Monitoring Equipment: Providing reliable power for fault detection and power line monitoring systems.
3. IoT Sensors in Power Systems: Enabling energy-autonomous operations for various Internet of Things sensors in electrical infrastructure.
