Did you know that all IAMMETER 3-phase Wi-Fi energy meters (such as WEM3080T) support reactive power measurement right out of the box? This functionality is essential for applications requiring detailed power analysis, energy efficiency optimization, or precise load management in both commercial and industrial environments.

🔑 Key Features:

• Real-time Reactive Power (Q) Measurement:
  Instantly monitor reactive power (measured in var) for each phase. Positive values indicate inductive loads, while negative values represent capacitive loads.

• Reactive Energy (kVarh) Logging:
  Accurately record inductive and capacitive reactive energy consumption separately, providing insights to better manage load characteristics and improve power factor.

• Seamless Integration via Modbus & MQTT:
  Access and visualize data effortlessly through widely-used protocols like Modbus and MQTT. Perfect for integration into platforms such as Home Assistant, Node-RED, and SCADA systems.

⚙️ Getting Started:

Enabling and utilizing the reactive power measurement feature is straightforward:

• Enable via API:
  Use the API endpoint /api/reactive?x=1 to activate reactive power measurement.

• Data Access via Modbus:
  Read reactive power and energy directly from specified Modbus registers.

• Real-time Data via MQTT:
  Easily subscribe to the relevant MQTT topics once your MQTT server is configured.

👉 Full instructions, register details, and step-by-step examples can be found in the original blog post:
3-phase Reactive Power Measurement with Modbus/MQTT

We encourage all forum members to share experiences, insights, or questions regarding reactive power measurement below. Let's learn from each other and optimize energy management together!