Xantrex Technology PROsine 2.0 Designing a Series System, System Overview, System Components

Series Operation

Designing a Series System

System Overview

Series operation refers to a specific wiring configuration that allows you to connect two PROsines in a way that produces two 120V phases which are synchronized to produce 240V. This is commonly referred to as a “120/240Vac split-phase” supply or “240V single-phase with a center-tap neutral” and is the same as the utility connection to most houses. This series system can power both 120Vac and 240Vac single-phase loads. Two PROsines connected in series can provide up to 4kW continuous power to almost any combination of 120V and 240V loads.

Important: Each PROsine is still limited to 17A continuous. For example, you cannot put 9A of load on one phase and 25A of load on the other.

System Components

A two-unit series operation system requires the same components that a single PROsine system requires. In many cases, however, two components are required, some are applied differently, and a 10 foot series sync cable is required. See Figure 7-1.

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