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Diagrama de cablare în sistemul solar fotovoltaic

Priveste filmareaApplying WiFi Energy Meters in a Solar PV System

1. Introducere

As a bidirectional WiFi energy meter, our WiFi Energy Meter is highly suitable for use within a solar PV system. It efficiently measures energy "to grid" or "from grid" using just one meter. This meter uploads measurements (Voltage, Current, Active Power, Active Energy, Frequency, etc.) to the cloud, facilitating easy online monitoring of essential solar PV system Key Performance Indicators (KPIs):

  • Energy generated by the solar inverter
  • To-grid energy (exported to the grid)
  • From-grid energy (imported from the grid)
  • Direct self-use energy

We'll present the wiring diagrams for installing WiFi energy meters in solar PV systems.

2. Single Phase Solar PV System

For monitoring your single-phase solar PV system, you have two options to achieve this:

  1. Instalare2 single-phase WiFi energy meters (WEM3080) within the solar PV system.
  2. Instalare1 three-phase WiFi energy meter (WEM3080T) within the solar PV system (recommended).

2.1 Instalați 2PCS WEM3080

As illustrated below, within a single-phase solar PV system, 2 WEM3080 units can be positioned at two locations (Grid Side and Solar Inverter Side) based on your specific requirements:

Solar PV System Application

Notă:

If you only wish to monitor imported/exported energy on the grid side, installing only 1 WEM3080 on the grid side is sufficient.

As depicted below, in a single-phase solar PV system, you can install 1 WEM3080T and place the CTs in different locations (Grid Side and Solar Inverter Side) as needed:

Solar PV System Application

This option is recommended as it synchronizes data at one-minute intervals.

Notă:

Clamping a CT to the Load Side isn't necessary as the system calculates the total power consumed by all loads using the following formula:

Load Power = Inverter Power - Feed-in Power

3. Three-Phase Solar PV System and 3-Phase Grid System

3.1 Install 2PCS WEM3080T

As depicted below, within a three-phase solar PV system, you can install 2 WEM3080T (three-phase WiFi energy meters).

iammetermanual-20191113-L1

Notă:

Installing only 1 WEM3080T on the grid side is sufficient if you wish to monitor imported/exported energy on the grid side only.

4. Split Phase Solar PV System

4.1 Instalați 1 BUC WEM3080 + 1 BUC WEM3080T

This wiring diagram is no longer recommended.

We've introduced a new method to monitor the 120/240V or 120/208V systems prevalent in most North American countries now.

Only one WEM3080T/WEM3050T is required to monitor both solar and grid systems in the 120/240V and 120/208V systems.

Va rog, referiti-va laMonitor the system of 120/240V or 120/208V in North America

As shown below, within a three-phase solar PV system, you can install 1 WEM3080 (single-phase WiFi energy meter) and 1 WEM3080T (three-phase WiFi energy meter).

Wiring Diagram in Split Phase

Notă:

For monitoring imported/exported energy on the grid side only, installing 1 WEM3080T on the grid side suffices. WEM3080T is applicable in single-phase, split-phase, and three-phase systems.

5 120/240V or 120/208V in North America

Only one WEM3080T/WEM3050T is needed to monitor both solar and grid systems in the 120/240V and 120/208V systems.

Va rog, referiti-va laMonitor the system of 120/240V or 120/208V in North America

WEM3080T in 120/240V or 120/208V System

6 More Video Tutorials

IAMMETER Energy Monitor Video Tutorials

Please note that these video tutorials only cover a part of IAMMETER's functions. For more detailed information, please refer to IAMMETER Docs

Referinţă

Sort and Compare More than One Solar PV Site in the Solar Analysis

How to Use IAMMETER's Wi-Fi Energy Meter in the Home Assistant

Monitor Your Solar PV System with Home Assistant

Integrate IAMMETER Energy Meter to Third-party Platforms

Monitor Your Solar PV System in IAMMETER Cloud

Monitor Your Electricity Usage in IAMMETER Cloud

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