Connecting the Generator in an Off-Grid System


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For a single system and single-cluster system, connect the generator to the AC2 terminal of the Sunny Island. For a multicluster system, connect the generator directly to the Multicluster-Box (see the Multicluster-Box documentation).

WARNING

Danger to life from electric shock due to incorrect connection of the neutral conductor

Connecting the neutral conductor incorrectly can cause failure of the protective functions in the system. This can result in death or serious injury.

  1. Connect the neutral conductor to terminal AC2 Gen/Grid N.

Requirements:

  • A separate cable must be laid for each Sunny Island from the AC distribution board or directly from the generator.
  • For a single-phase parallel cluster, the cable length and the conductor cross-section must be identical from each Sunny Island to the AC distribution board or directly to the generator.
  • With each three-phase cluster, the connection of the line conductor must be prepared as follows: L1 to the master, L2 to slave 1 and L3 to slave 2. This results in a right-hand rotating magnetic field.

Procedure:

  1. Connect the power cable to the AC2 Gen/Grid terminal on the Sunny Island. To do this, connect the neutral conductor to terminal N Connecting the AC Power Cable).
    • Connect the line conductor to AC2 Gen/Grid L.

    • Connect the neutral conductor to AC2 Gen/Grid N.

  2. Thread the grounding conductor through a ferrite included in the scope of delivery and connect to AC2 Gen/Grid PE Connecting the Grounding Conductor).