Work Modes - WESTECH Solax X3-HYBRID G4 Manual

Introduction
Diagram D: N line and PE line together, M series inverter;
( Applicable to Australia)
PV 1
PV 2
X3-Hybrid G4
CT
EPS(Off-grid)
BAT Grid
N
E-BAR
X3-Matebox
Battery
EPS(Off-grid) loads
N-BAR for EPS(Off-grid) loads
Note!
The RCD on the gure represents a leakage protection
device with a circuit breaker function.
• When power cuts suddenly, the inverter connects the N
line of EPS(Off-grid) load with the ground through relay,
providing a xed zero potential for EPS(Off-grid) load and
ensuring the safety of electricity use by users.
• Please control the inverter load and make sure it is
"output value" in "within " EPS(Off-grid) mode, otherwise
the inverter will stop and alarm overload fault".
• Please confirm with the grid operator whether there are
special regulations for grid connection.
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Main Breaker/RCD
CT 1
CT 2
CT 3
N
E-BAR
Grid
Loads
N-BAR for loads

2.3 Work Modes

X3-Hybrid G4 series, can be based on different needs, there are a variety of models.
Self Use
The self-use mode is suitable for areas with low feed-in
subsidies and high electricity prices.
① When the power of PV is sufficient
Active Charging or Discharge time period: PV will power the
loads rstly, and surplus power will charge to the battery.
If the battery is fully charged, then sell the surplus power to
the grid;( The inverter will limit the output if Feed-in limit or
zero feed-in is needed )
(PV＞Load, PV →Load→Battery → Grid)
①
② When the power of PV is insufficient
③
Active Charging time period: PV will power the loads rstly ,
②
the remaining power will be taken from the grid , the battery
will not discharge at this time.
(PV＜Load, PV + Grid → Load)
Active Discharge time period: PV+BAT will power the loads
together. If the power is still not enough, the remaining
power will be taken from the grid.
(PV＜Load, PV + Battery + Grid → Load)
③ Without PV power
Active Charging time period: The grid supplies the loads
and also can charge the battery;
(PV=0, Grid → Load + Battery)
Active Discharge time period: The battery will power the
home loads rstly. If the battery power is not enough ,the
②
remaining power will be taken from the grid. The inverter
①
will enter into the standby state.
(PV=0, Battery+Grid → Load )
Battery min SOC can be set: 10%-100%;
Charge battery to min SOC can be set:10%-100%.
Feed-in priority
The Feed-in priority mode is suitable for areas with high
feed-in subsidies, but has feed-in power limitation.
①
When the power of PV is sufficient
Active Charging time period: First, PV supply power to the
load, then charge the battery to the set capacity, and then
sell the power to the grid. If the local grid company limits
①
the grid-connected power of the inverter, the excess energy
continues to charge the battery.
(PV＞ Load, PV → Load → Battery→ Grid → Battery)
③
Active Discharge time period: PV will power the loads rstly,
②
and surplus power will feed-in to the grid.
(PV＞ Load, PV → Load → Grid )
②
When the power of PV is insufficient
Active Charging time period: PV will power the loads rstly,
the remaining power will be taken from the grid. The battery
will not discharge.
(PV＜ Load, PV + Grid → Load)
Discharge time period: PV+BAT will power the loads together.
If the power is still not enough, the remaining power will be
taken from the grid.
(PV＜ Load, PV + Battery + Grid → Load)
Introduction
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