Off-Grid Solar Inverter 10KVA-120KVA Made In China High Intelligence

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Product Description:

Off-Grid Solar Inverter 10KVA-120KVA    

EA-GF series products use high speed DSP control unit, advanced high speed IGBT, MOSFET components, with pulse width modulation (SVPWM) technique disturbance type MPPT control, and double conversion system configuration. Under high-speed DSP system control, the system can quickly track panels to do high-power, load change and efficient multi-level control system, even if the mains input voltage and frequency suddenly change, over/under voltage, or power disturbances, it also can ensure provide the load with regulated voltage and frequency power. System has a reliable, environmentally friendly, high intelligence and other characteristics.

   

Villa, hotel, residential security, large base station, office, small manufacturing enterprises, computing centers, industrial automation equipment, network room, IDC data center, banking equipment, securities, health care, transportation, petrochemical and other solar systems. 
● High reliability:
※ High-speed micro-controller DSP digital control technology to achieve real-time control, parameter setting, data detection, self-test function to ensure high reliable operation of the system.
※ With high speed switching characteristic, high voltage, high current, low internal resistance, low dissipation IGBT, MOSFET power components based, to ensure system security and reliability.
● N+1 modularized MPPT tracking system:
※ Multipath MPPT control system access, independent input, operation. More suitable for roof project, to improve power generation efficiency of the panels.
● PV proactive power supply function:
After detects PV energy, system will enter MPPT status automatically, and it will also adjust the power distribution, priority in the use of PV energy.
● Intelligent battery management system:
※ In this system, AC rectifier 、MPPT controller controlled by intelligent data exchange and communication system,user can set the battery capacity by themselves;battery configuration can be set by the operator interface,system will automatically 
adjust the charging current ,charging voltage and charging mode.
※ In special cases,international technical engineer can adjust the charging rate and battery number according to the system configuration.
● Plenteous communication interface:
※ RS485、RS232 (standard),SNMP(Option).
※ Input dry contacts to switch on/off inverter, clear abnormal, EPO remotely. Output dry contacts singles for remote alarm. 
● Intelligent storage staggering features:
System with intelligent peak load shifting function, the user can set the appropriate time period electricity according to the local electricity policy, to achieve load shifting features directly in order to bring economic value;

 

   Model

10KVA

20KVA

30KVA

40KVA

50KVA

60KVA

80KVA

100KVA

120KVA

Rated Power(KW)

9KW

18KW

27KW

36KW

45KW

54KW

72KW

90KW

108KW

Rated Current (A)

15A

30A

45A

60A

76A

91A

133A

151A

182A

Output Power Factor

0.9

Rated Input Voltage

380V±20%

Rated Output Voltage

380V±1%

Battery Voltage

360Vdc

Battery Quantity

30 units, 12V

Working Mode

PV、AC replenish








PV Input

Max Voltage

750Vdc


Best Working Voltage(Vmp)

444-550Vdc


Float Charging Voltage

414V±1%


Max Efficiency

≥98%

Equalize Charging Voltage

428V±1%

Max Current

40A

60A

120A

180A

240A

300A

360A

PV Input Ways

1+1(reserved)

2+1(reserved)

3+1(reserved)

4+4(reserved)

5+3(reserved)

6+2(reserved)

MPPT Modular

1+1(reserved)

2+1(reserved)

3+1(reserved)

4+4(reserved)

5+3(reserved)

6+2(reserved)







AC Rectifier

Input Voltage Range

Three phases 380V ±20%(-10%~+20% can charge the battery)

Rated Frequency

50 Hz / 60Hz(can be set backstage)

Frequency Range

50Hz/60Hz±5Hz

Soft Start

0-100% 10s

Power Factor

0.8

Float Charging Voltage(20℃)

410V±1%

Max Voltage

415V±1%

Max Charging Current(A)

Battery Capacity Allowed

12

25

38

50

62

75

80

100

120











Inverter

Inverter Voltage

Three phases four lines +G 380Vac

Phase Voltage Setting

220-230-240Vac(can be set backstage)

Output Voltage Accuracy

±1%

Voltage Transients Range

±5%

Transient Recovery Time

20ms

Rated Frequency

50Hz/60Hz±1%

Frequency Tracking Range

50Hz/60Hz±3Hz

Crest Factor

3:1

Wave

Pure sine wave

THD

≤3%(linear load)

Voltage Unbalance Degree

±3%(100%unbalance load)

Overload

≥105%-110%: transfer to bypass 1 hours later, recover when reduce load

≥110%-125%: transfer to bypass10 min later, recover when reduce load

≥125%-150%: transfer to bypass 1 min later, recover when reduce load

≥150%: transfer to bypass 10 s later, recover when user confirmed

≥200%: shutdown immediately, recover when user confirmed

Short Circuit

System current limited, shut down immediately, boot by user

Max Efficiency %

≥90%

≥91%

≥92%

≥92%

≥93%

≥93%

≥93%

≥93%

≥93%

Bypass

Rated Voltage(V)

Three phases four lines+G 380Vac

Voltage Range

±20%

Rated Frequency(Hz)

50/60Hz±5Hz

Max Current

19

38

57

76

95

114

122

152

182



Battery

Management

End of Discharge

315VDC

Charging Current Setting

Factory setting is 0.15C10 ; user can set 0.05-0.3 C10

Charging Current Setting

Equalizing charging and float charging automatically transfer, automatic temperature compensation for battery (when battery detection not connected, default environment temperature)

Staggering Depth of Discharge Settings

1.85V-2.1V; can be set by user


Transfer

Time

Inverter/Bypass Transfer Time

0ms

Inverter/Bypass Transfer Time

0ms


Communication

Interface

Remote Control Input

Inverter on、off、abnormal clear、emergency power off

PC Monitoring Interface

RS232、RS485、SNMP (optional)

Dry Contact

Bypass input abnormal、rectifier input abnormal、system fault、system warning、

low battery、overload 、fans fault、generator ON/OFF

Environment

Operation Temperature

0-42℃

Max. Relative Humidity

90% (non condensed)

Max. Working Altitude

1000m (100 m higher, 1% derated; max 4000m)







Other

Cooling Way

Forced ventilation (Fans speed varies with the load)

Noise(1m varies with load and temperature )dB

65

Mean Time Between Failures(MTBF)

200,000 hours

Defend Grade(EN60529)

IP20

Power Line Input

Bottom

Standard

IEC62040-1-1、EN62109-1:2010, EN62109-2:2011

Dimensions(WxDxH)mm


600×700×1750

1000×800×1700

Packing Dimensions(WxDxH)mm


690×790 ×1850

1090×890 ×1800

Weight

250

280

300

320

345

360

400

420

445

·         Q. What is an UPS and What it is for ?

An uninterruptible power supply (UPS) is a device that allows your computer or telephone switch or critical equipement to keep running for at least a short time or longer time when the primary power source is lost. It also provides protection from power surges, spikes, brownouts, interference and other unwanted problems on the supported equipment.

·         Q. How long the UPS to run when power goes?

This can take 3 paths.
1.You can pick a UPS that is rated for pretty much the full VA you need so it will be running at 100% of capability and will thus last 'n' minutes.
2.You can pick a UPS that is rated at a much higher VA value than you really need so, for example, is running at 50% of capability and will thus last for longer than the UPS from option 1.
3You can use extra external battery packs to run for longer. If charging capability allows, the more and the bigger batteries you take with, the longer time UPS runs. 
or using a generator after about 6 hours, it will be more cost-effective, with a short runtime UPS to bridge the generator start-up gap.

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Q:Grid-connected inverter is generally divided into photovoltaic power generation grid-connected inverter, wind power grid-connected inverter, power equipment and grid-connected inverter and other power generation equipment power generation inverter.
The grid inverter is a current source, the output voltage is basically the grid voltage, may be slightly raised.
Q:What is the difference between a PV inverter and a solar inverter?
The main function of photovoltaic grid-connected inverter is to convert the DC power of the solar PV module into the same frequency as the sinusoidal AC power of the grid (the grid is generally AC power grid, DC can not be directly connected)
Q:Is the grid side of the grid and the inverter?
Off-grid system power transmission sequence: photovoltaic panels> relays> inverters> relays> electricity load;
Q:The working principle of photovoltaic grid - connected inverter
Full-bridge inverter circuit to overcome the shortcomings of the push-pull circuit, the power transistor to adjust the output pulse width, the output AC voltage RMS that changes. Since the circuit has a freewheeling circuit, even if the inductive load, the output voltage waveform will not be distorted. The disadvantage of this circuit is that the upper and lower arms of the power transistor are not common, so you must use a special drive circuit or use isolated power supply. In addition, in order to prevent the upper and lower arm co-conduction, must be designed to turn off after the conduction circuit, that must be set dead time, the circuit structure is more complex.
Q:How the output voltage of the PV inverter and the grid-connected voltage are determined
DC voltage and AC side voltage does not matter, the general PV inverter AC output is 400V / N / PE. With no isolation transformer and output voltage does not matter, grid-connected inverter is the regulation of current, and network voltage depends on the grid voltage. And the grid before the inverter will detect the grid voltage, meet the conditions will be network.
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Grid-connected inverter will be directly sent to the power grid, so to track the frequency of the grid, phase, the equivalent of a current source. Of course, there are some inverters that have a low-pressure through the ability to do PQ adjustment.
Q:Installation and maintenance of photovoltaic grid - connected inverter
photovoltaic systems Power generation system used in the cable must be connected firmly, good insulation and specifications appropriate.
Q:What is the PV inverter starting voltage
sine wave becomes narrower and the voltage width in the center of the sine wave is widened and the switching element is always operated in a direction at a certain frequency in a half cycle, A pulse wave train (pseudo sine wave). Then let the pulse wave form a sine wave through a simple filter
Q:After the PV inverter, how to achieve the same period before the network?
It can automatically detect the generator and the grid frequency and voltage, in the frequency, voltage, phase are in line with the requirements of the grid to set the time before the release of the closing signal, so that it can be safely and securely connected.
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
Group is the use of a number of grid-connected inverter and grid-connected AC power grid, the advantage is the loss of small, low cost of the cable (because the PV cable is more expensive), eliminating the cost of the convergence box, and multiple

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