Eltek Valere Theia He-t Guida di Installazione Scaricare il pdf (Pagina 18)

18 Installation Guide THEIA HE-t String Inverters 357115.033, Issue 2.0, 2011 March

2.3.3.2. No Stringbox: Connector Panel

The connector panel is equipped with plug-in connectors or cable glands. A DC switch must

be installed separately by authorized personnel in compliance with the relevant national

electrical regulations.

Figure 2.3.12: Connector panel with optional DC

connectors

N1, N2, N3: Negative connectors

P1, P2, P3: Positive connectors

Figure 2.3.13: Customer connection area

P1’, P2’, P3’:

Terminals labeled +POS (Positive)

N1’, N2’, N3’:

Terminals labeled –NEG (Negative)

G1: DC ground terminal (See 2.3.2.

Grounding)

Negative grounded PV String

• Connect the grounding strap between N3’ and G1.

• With three strings, two of the string conductors must be connected to the same terminal, so

that the grounding strap has a terminal for itself.

Positive grounded PV String

• Connect the grounding strap between P3’ and G1.

• With three strings, two of the string conductors must be connected to the same terminal, so

that the grounding strap has a terminal for itself.

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Eltek Valere Theia He-t Guida di Installazione Pagina 18