Grid Port Connection - LIVOLTEK Hyper-2000 User Manual

6.3 Grid Port Connection

The hybrid inverter has two AC output terminals, one is grid output for connecting grid and the
other is EPS (emergency power supply) output for connecting critical (backup) Loads.
Make sure inverter is totally isolated from any DC or AC power before connecting AC
•
cable.
Only with the permission of the local grid department, the inverter can be connected to
•
the grid.
Before commencing AC wiring, please ensure all AC circuit breakers are switched off.
•
DO NOT connect the AC grid terminal and AC Backup (EPS) terminal together.
•
DO NOT connect the AC Backup (EPS) terminal to grid.
•
When you want to use both on gird power and backup power, please connect both with
•
Grid output and EPS output. When you want to use on gird only, please connect with
Grid output and float EPS output.
Determine whether an AC circuit breaker with greater overcurrent capacity is required
•
based on actual conditions.
The grid voltage and frequency must be in the permissible range.
•
Never connect a load between the inverter and the circuit breaker.
•
6.3.1 Wiring Connection Procedure
The AC cable should be prepared by customers. And an external AC circuit breaker should be
installed on the output side of the inverter and the grid side (between inverter and loads) to
ensure safe disconnection from the grid. The recommended specifications are as follows.
Model
3KVA
5KVA
6KVA
Step1: Assembling the Grid Connector
• Take out the AC terminal from the package box and uninstall it as below chart.
• Put the AC cables through the terminal cap, threaded sleeve in sequence.
Wire Size
10-12AWG
10-12AWG
8-10AWG
WARNING
Cable Beaker
4-6mm² 230/25A
4-6mm² 230/32A
6-8mm² 230/44A
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