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Off-Grid Solar Inverter 3KW ~ 8KW

EA-GF series products are on the basis of green energy use and equipment electricity need for remote area, combing the electricity characteristics of household appliances, communication station equipment and computer peripheral equipment. They have the function of energy conservation and environment protection. They adopt MCU control technique, having various kinds of function such as multi-setting mode, MPPT control, voltage stabilization on line, short-circuit protection, inverter frequency adaptive, output overload, battery charging management, monitoring etc. With display of LCD and LED, all the parameters and running status could be visible. Intelligent monitor is available via RS232 & USB connecting with PC, while remote control via RS485 &SNMP. EA-GF series products are the ideal power supply delivered with excellent performance, high stability, high reliability and high practical applicability.

Characteristics

  • Independent MPPT control microprocessor system
  • Independent inverter control microprocessor system featured with high-speed online stabilization
  • Advanced SPWM technology, high-speed power MOS
  • MPPT control using PWM technology enable to bear the maximum PV open-circuit voltage
  • Operating mode selectable: PV priority or utility power priority
  • Charging current selectable according to configured battery
  • AC input with effective online synchronous stabilization technology
  • Auto-tracking mains phase to ensure that inverter output voltage has same phase with utility voltage, reducing transfer time and peak surge
  • No-load auto shutdown function (optional)
  • Automatic frequency selection
  • Auto Power-On/Off function; real-time monitoring, test and intelligent startup / shutdown by RS232 or USB interface communicating with PC; remote monitoring by optional SNMP networks

Technical Specifications

MODEL

GF3000

GF4000

GF3000

GF5000

GF6000

GF8000

Rated power

3 KW

4 KW

3 KW

5 KW

6 KW

8 KW

Battery voltage

96 Vdc

192 Vdc

Operating mode

PV priority / AC priority

PV INPUT

Input voltage range

96 Vdc ~ 200Vdc

192 Vdc ~ 400 Vdc

Max. charging current

10 ~ 60 A selectable

10 ~ 40 A selectable

10 ~ 60 A selectable

Optimum operating voltage (Vmp)

120 ~ 142 Vdc

240 ~ 284 Vdc

Max. PV power (Pmax)

5760 W

7680 W

11520 W

Max. conversion efficiency

98%

AC INPUT

Input voltage

165 ~ 275 Vac

Input frequency

40 ~ 70 Hz (overloacking: auto transfer to DC power supply)

Waveform

Sinusoidal

Output voltage

220 Vac ± 5%

Input power factor

≥ 0.8

Max. efficiency

88% (online mode)

Max. charging current

8 A

12 A

Short circuit

Current-limiting, transfer to bypass; air circuit-breaker

INVERTER OUTPUT

Output voltage

220 Vac ± 5%

Output frequency

50 Hz / 60 Hz ± 1% (auto-sense)

Output power factor

1

Waveform distortion

≤ 5% (linear load)

Transfer time (PV – AC)

0 ms

Max. efficiency

92%

Short circuit

Current-limiting, transfer to bypass or system auto shutdown

ALARMS

Utility power abnormal

4 s per beep , auto mute in 40 s

Low battery

0.2 s per beep

Overload

1 s per beep

COMMUNICATIONS

Communication interface

RS232, USB, RS485, SNMP (optional)

Dry contacts

PV fault, low battery, overload, bypass, inverter fault, generator ON / OFF

OTHERS

Overload protections

110% for 255 s; 125% for 60 s; 150% for 10 s

Wiring

Terminal blocks

EMI

EN62040-2:2006; EN61000-3-2:2006; EN61000-3-3:2008

IP rating

IP20

Ambient temperature

0℃ ~ 40℃

Relative humidity

10% ~ 90% (non-condensing)

Noise

≤ 50 dB

Operating altitude

2000 m (derating 1% for each additional 100 m)

Dimensions (W × D × H) (mm)

265 × 560 ×  725

Packaged dimensions (W × D × H) (mm)

360 × 662 ×  905

Net weight (kg)

76

80

60

67

69

85

Gross weight (kg)

85

89

69

76

78

94