Sma POWER REDUCER BOX User Manual download pdf (Page 14)

4 Product Description SMA Solar Technology AG

14 REDUCERBOX-BA-en-16 User Manual

4 Product Description

4.1 Power Reducer Box

The Power Reducer Box is for PV plants that have to implement network operator setpoints for active

power limitation and reactive power operation under grid management. The network operator can

use the Power Reducer Box to temporarily and remotely limit the feed-in capacity of the PV plant in

the case of a grid overload. The Power Reducer Box translates the control commands of the network

operator and transmits them to the Sunny WebBox. The Sunny WebBox forwards the control

commands to the inverter.

The Power Reducer Box primarily performs the following tasks:

• Active power limitation and reactive power setpoint

• Recording all control commands of the network operator

• Control of up to 2,500 SMA inverters via Sunny WebBoxes

• Data transfer to the Sunny Portal Internet portal for visualisation and optimal notification to the

plant operator

Four digital states (e.g. a ripple control receiver) can be imported with the Power Reducer Box and

the inverters can be set according to the specifications of the network operator. The four inputs can

be freely configured via the integrated user interface on the Power Reducer Box. If a signal from the

ripple control receiver is present, the Power Reducer Box analyses the signal and relays an instruction

via the Ethernet network to the registered Sunny WebBoxes. The Sunny WebBoxes contacted transfer

the instruction to the connected inverters.

Events are recorded in the internal memory of the Power Reducer Box. It is also possible to save events

onto an SD card or to download events via the user interface.

The Power Reducer Box sends the event data to the Sunny Portal. The Sunny Portal can display the

sent data and inform the user of this by e-mail in the event of applied power limitations.

The Power Reducer Box can automatically update its firmware via the SMA Update-Portal if a new

update is available. For this purpose, the Power Reducer Box must have an Internet connection.

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 79 80

No comments

Sma POWER REDUCER BOX User Manual Page 14