Outdoor Induction Power Supply Power Conversion Module

Key Properties

• Intelligent power management based on energy harvesting characteristic
• Conversion efficiency ≥90%
• Lightning protection of module Input terminal, overcurrent and current pulse protection
• Compatible with solar photovoltaic panel input
• IP68

Application
This module is suitable for any voltage level cable lines,  can draw power from the load current of the conductor, and then provide stable working power for intelligent electronic devices, relay protection devices, communication equipment, provide operating power for electric control mechanisms, and can charge backup batteries or energy storage capacitors

Working Principle

• The power supply device for transmission lines consists of two parts: the energy harvesting transformer and the energy harvesting power module. The working principle as below:

This device obtains electrical energy from input cables or solar panels through the energy harvesting ct, and then inputs it into the energy harvesting power module. The energy harvesting module rectifies and filters it, and outputs a stable voltage through voltage conversion.

The power supply module contains a power regulation and protection circuit, which can adjust and limit the input module's electrical energy in real time. It can absorb the instantaneous high current caused by lightning strikes and other special situations, guarantee that the module can output stable voltage even when the transmission line current is unstable.

Technological Description

Instructions
1. The output voltage is adjusted according to different battery types. When the battery is not connected, the module outputs voltage is the highest voltage of charging battery.
2. When charging /discharging with a battery, the output voltage based on battery voltage.

3. Working strategy of energy harvesting module
1) Priority load power supply.When the power supply of energy harvesting CT is insufficient, energy harvesting CT and the battery jointly supply power to the load.When the power of the energy harvesting CT exceeds the load power requirement, it charges the battery at the same time.The energy harvesting CT power supply and battery power supply can be seamlessly switched.
2) When the wire current is too high and the CT output voltage is too high, the energy harvesting module protection circuit starts, controlling the thyristor to continuously switch and limit the input voltage to a certain value.
3) Under the dual input conditions of power supply energy harvesting CT and solar panels, power supply CT is preferred. When the power supply of energy harvesting CT is insufficient, energy harvesting CT and the solar panels jointly supply power.
4) If the battery discharge approaches 9.2V, prioritize charging the battery, disconnect the load output, and wait for the battery to charge to 10.2V before turning on the load output.

4. Wiring Definition

5. Indicator light description

Dimension

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