Electrical Connection - LIVOLTEK Hyper-2000 User Manual

Electrical Connection

6.
Prior to any electrical connections, keep in mind that the inverter has dual power supplies. It is
mandatory for the qualified personnel to wear personal protective equipment (PPE) during the
electrical work.
Danger to life due to a high voltage inside the inverter!
• The PV strings will generate lethal high voltage when exposed to sunlight. Before starting
electrical connections, disconnect the DC and AC circuit breakers and prevent them from
inadvertent reconnection.
• All operations, cables and parts specification during the electrical connection shall be in
compliance with local laws and regulations.
• Disconnect the DC switch and the AC output switch of the inverter to power off the inverter
before any electrical connections. Do not work with power on. Otherwise, an electric shock
may occur.
• Any improper operations during cable connection can cause device damage or personal
injury.
• Wear personal protective equipment like safety shoes, safety gloves, and insulating gloves
during electrical connections.
• Only qualified personnel can perform cable connection.
• All cables must be firmly attached, undamaged, properly insulated and adequately
dimensioned.
• Comply with the safety instructions related to the PV strings and the regulations related to
the utility grid.
• All electrical connections must be in accordance with local and national standards.
• Only with the permission of the utility grid, the inverter can be connected to the utility grid.
• When the inverter is powered on, the EPS(BACK-UP) port is charged. Power off the inverter
first if maintenance is required for the loads connected with EPS port. Otherwise, it may cause
electric shock.
Note:
The cable colors shown in the electrical connection diagrams provided in this chapter are for
reference only. Select cables in accordance with local cable specifications (green and yellow
cables are only used for PE).
DANGER
WARNING
NOTICE
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