1. Theoretical overview

Let's start with a theoretical overview, which will help us choose the correct settings in the Reduxi strategy. In the calculations below, we have a list of maximum power available on three-phase connection. We can use a simple formula for one phase connection, P = U * I * cos φ, where P is power, U voltage and I is current. We set cos φ to constant of 1 (ideal consumer). 

For example, 255 V * 20 A * 3 (three phases) = 15,300 W of total power consumption available in the three-phase connection. We usually shorten this to saying we have 15,3 kW of total power available.

Picture 1: Example of basic calculation which we use in the next step for Reduxi Configurator Strategy

 
Source of information:  Data has been taken from »SONDSEE 2016 Navodilo za uporabo stikalne naprave v kombinaciji s števcem električne energije Potrjena PSMEE«. 

2. Adding strategy to Reduxi Configurator

We can use Reduxi strategy to limit total power consumption or/and prevent fuse blow. 

In the picture below, we protect the fuse with a maximum current of 30 A on each phase.

Picture 2:Maxximum current allowed on each phase to prevent fuse blow.

We can also limit total power consumption.

Picture 3: What is our total power consumption limit?

Reduxi strategy allows us to limit the maximum energy we send to the grid using the solar power plant.

Picture 4: How much energy can Solar Power Plant send to the grid?

We need to have enough data (Measurement devices) to achieve this. Based on measurement data, we can regulate the devices we select.

Picture 5: Measurement devices 

Picture 6: Regulated devices

3. Example of reading and showing the data in Reduxi Configurator

 
In the picture below, we can see reading from the Heat Pump and main electrical meter.

Picture 7: Heat Pump data

Picture 8: Energy meter reading

In the picture above, we can see data which is read from the main electrical meter. However, it does not report data for each phase. What to do in this case? We need to call our electrical distributor to ask them if they can configure the main electrical meter to measure the data on each phase.