Photovoltaic DC Inverter Disassembly

How do I switch on a solar inverter?

Switch on the build-in DC isolator at the bottom of the inverter. Switch on the PV Array and DC isolator next to your inverter, if you can not find this switch, skip this step. Switch on the Solar AC isolator if the inverter is more than 3 meters away from your switchboard. Switch on the solar supply main switch in the switch board.

How do I connect my inverter to a photovoltaic panel?

The electrical power and signals wiring from the inverter to the AC Grid and to the photovoltaic panel are connected through the Switch Box as described in Fig.11 SB-01 – "DC Switch Box Layout" –using the access windows in pos “A” for the power cables and the windows in pos “D” for the signal cables.

How does a PV inverter work?

The inverter converts the DC from PV modules to AC with the same frequency and phase as the AC grid. All or part of the AC power is supplied to local loads, and the surplus supplied to the electricity grid.

How do I Disconnect an inverter from the AC grid?

STEP 1 If the inverter is connected to the AC Grid (Fig. 15- “Terminal Block for AC Connection”– pos. "1", "2" and "3"), DISCONNECT the inverter from the AC Grid by opening the switch indicated as Part “D” in Fig. 9-“Electrical Connection Diagram”. Disconnect the DC side switch (integrated in the –S models, or externally provided).

How to check if a PV inverter is faulty?

Check PV input Current (PV Over current) 2. Restart inverter by recycling both AC and DC switches. Wait for 1 minute between OFF and ON for all energy to discharge. If inverter cannot clear fault, replace inverter. Recommended solutions: 1. Measure voltage at DC terminals in wire-box and compare with reading in Measurement menu.

How do I disassemble the inverter?

Disconnect the inverter as described in section8. 2. Remove all connection cables from the inverter. Danger of burn injuries due to hot enclosure parts! Wait 20 minutes before disassembling until the housing has cooled down. Screw off all projecting cable glands. Lift the inverter off the bracket and unscrew the bracket screws.