PV Powered PVP4800 Spécifications télécharger pdf (Page 10)

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2.3.b Connecting the StarInverter to the Electrical Grid

Inside the StarInverter are two circuit boards:

♦ The Control Board

♦ The Power Distribution Board with a D-sub socket or an optional terminal block

for communications to a personal computer and:

• The AC connection terminal

• The DC connection terminal

• The Internal AC grid fuse(s)

• The Internal Ground Fault Interrupt fuse

WARNING: For continued protection against risk of fire, replace only with

same type and ratings of fuse. The PVP2500, PVP3500 and PVP4800 all use only

Littelfuse 326020 30 AMP 250V AC.

PV Powered provides overcurrent protection on the Power Distribution Board with two 30

AMP fuses in the PVP2500, PVP3500 and PVP4800 (See warning above). Additional over

current protection for the inverter’s AC output is provided by circuit breakers at the

breaker panel.

WARNING: Replace GFI fuse with only same type and rating of fuse. The

PVP2500, PVP3500 and PVP4800 uses only Littelfuse KLKD001 1A/600V.

The StarInverter is connected to the electrical grid using 3 wires - the LINE 1, LINE

2/NEUTRAL and GROUND.

Please Note: To avoid an increase in AC voltage to unacceptable values while the

StarInverter is connected, the grid impedance value at the connection point should

be as low as possible. By keeping the grid impedance value low, higher system

efficiency will be achieved.

The total impedance of the grid plus the interconnecting AC wires should be less

than 1.25 Ohm.

WARNING: Make sure the main 240 V breaker at the circuit breaker panel is

switched OFF before you connect the AC terminal block.

To wire the StarInverter to the main utility grid, follow the steps outlined below (refer to

Figure 8):

1. Run the conduit from the main breaker panel to the bottom of the StarInverter

and insert the fitting in the center opening of the StarInverter, fastening with a

locking nut.

2. Feed the LINE 1, LINE 2/NEUTRAL and GROUND wires through the conduit and

into the center opening of the StarInverter.

3. Connect the GROUND wire to the terminal marked ‘earth ground’ inside the

StarInverter.

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PV Powered PVP4800 Spécifications Page 10