Off-Grid Low Frequency PV Inverter EP3200 Series 1KW-3KW

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30000 watt
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18000000 watt/month

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1. Structure of Off-Grid Low Frequency PV Inverter Description

A solar inverter, or PV inverter, or Solar converter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into a

utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is a

critical BOS–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar inverters have special

functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection..

 

2. Main Features of the Off-Grid Low Frequency PV Inverter

• High overload ability of our EP3200 charger is up to 300% rated power

• EP3200 pure sine wave inverter adopts low quiescent current, and power saver mode to reduce power consumption to 3W

• It can extract max• power from various batteries with different protections, and low voltage trip can be selected (10V/10. 5V/11V)

• Uses PFC (power factor correction) for charger, which has less power consumption than conventional units.

• It has 10s delay before transfer when AC resumes, and overload protection when our APC pure sine wave inverter equips with generator

• 10ms typical transfer time between battery and AC, which guarantees power continuity of EP3200 charger. Uses selectable input AC

voltage (185-265V or 155-255V) for different kinds of loads

• Our EP3200 charger allows start up and through power with depleted batteries. Its powerful charge rate up to 70Amp

• It can offer 3-step intelligent battery charging, and equipped with 6 preset battery type selector for totally flat batteries

• LCD status display, battery/AC priority switch, RS232 communication port are available for our EP3200 pure sine wave inverter, it also has

 17 alarms/warnings for easier operation and trouble-shooting, and ability to switch the unit on/off. In addition, select/deselect power saver

mode can be used too

 

3. Off-Grid Low Frequency PV Inverter Images

Off-Grid Low Frequency PV Inverter EP3200 Series 1KW-3KW

Off-Grid Low Frequency PV Inverter EP3200 Series 1KW-3KW

Off-Grid Low Frequency PV Inverter EP3200 Series 1KW-3KW

Off-Grid Low Frequency PV Inverter EP3200 Series 1KW-3KW

 

 

4. Off-Grid Low Frequency PV Inverter Specification

Rated Capacity

1000W 

1500W 

2000W 

3000W 

Efficiency

>90%

Input

Model

120v Models

230v Models

Nominal Voltage

100V/110V/115V/120V Selectable

200V/220V/230V/240V Selectable

Output

Rated Power

1000W

1500W

2000W

3000W

Output Voltage

100V/110V/115V/120V Selectable

200V/220V/230V/240V Selectable

Voltage Waveform

Pure Sine Wave

Crest Factor

3:01

Regulation(Nominal)

±10% Typical Of Nominal Voltage

Transfer Time

Transfer Time : AC To DC : 10ms (Typical)

Transfer Time : DC To AC : 10ms(Typical )

Max Bypass Overload Current

30A

Input

Nominal Voltage

DC12V/24V

DC12V/24V

DC12V/24V

DC24V/48V

Over Current Protection

By Re-Settable Over Current Protector

Output

Nominal Input Voltage

230Vac

Input Voltage Range

185~265Vac

Nominal Charge Current

35amp-70amp

Charger Short

Circuit Breaker

Circuit Protection

Over Charge

Bat• V  15• 7Vdc/31• 4Vdc/62• 8Vdc

Protection

Beeps 0• 5s Every 1s & Fault After 60s

Battery Type

Lead-Acid 12Ah 250Ah

Typical Backup Time

No Limit, Depend on external battery

Average Charging Current

35A/20A

45A/30A

65A/35A

75A/30A

Battery voltage Option

Options 7

Battery low trip to bypass 11v , high trip to battery 14v

Options 8

Battery low trip to bypass 10• 5v , high trip to battery 13• 5v

Options 9

Battery low trip to bypass 10v , high trip to battery 13v

Communications & Management 

Control Panel

LCD/LED Option

Audible Alarm

Alarm On BatteryLow Battery & Battery Over Voltage

Alarm On Abnormal Operation

Over Load, Short-Circuit, & Over Heat

Environment and Safe

Operating Temperature

0 To 40 (32 To 104)

Transit/Storage Temperature

-15 To 60

Audible Noise

60 Dba Max at 1m

Quality Control System

ISO 9001,CE,FCC

Physical

Dimensions: (H×D×W)

570*320*315mm

G• W (Kg)

19

19

22.5

27.5

Packing

Export Carton For Each Unit Per Carton

 

5. FAQ of Off-Grid Low Frequency PV Inverter

 

Q1 What is the difference between inverter and Off-Grid Low Frequency PV Inverter?
A1Inverter only has AC inpput, but Off-Grid Low Frequency PV Inverter both connect to AC input and solar panel, it saves more power.

 

Q2 What is the difference between MPPT&PWM?
A2MPPT has higher efficiency, it can track the max power point and won't waste energy.

 

Q3 What is the waranty of product?
A3 12 months.

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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:Photovoltaic grid-connected inverter without DC emc how will happen
Solar photovoltaic power generation technology is the use of solar cells, the photovoltaic effect of semiconductor materials, solar radiation can be directly converted into a new type of power generation system, solar energy is a radiant energy, solar power means --- to direct conversion of sunlight Into electricity,
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:How the output voltage of the PV inverter and the grid-connected voltage are determined
supply through the cable to the battery. The use of household appliances connected to the power converter output can be used in the car a variety of electrical appliances. The available electrical appliances are: mobile phones, laptops, digital cameras, cameras, lights, electric razors, CD players, game consoles, handheld computers, power tools, car refrigerators and various tourism, camping, medical emergency appliances Wait.
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 PV inverter a current source or a voltage source?
Photovoltaic inverter, also known as power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into two kinds of independent power supply and grid.
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
The use of a high-power grid-connected inverter into the grid, the need for line design is relatively simple, because the DC and AC lines are separated, the use of convergence box to summarize, DC bus and then into the grid inverter
Q:Photovoltaic grid-connected inverter problem
The first zero line is the AC output. Any AC output of the inverter will have zero line, whether it is isolated or non-isolated. Isolation is the safety of high voltage inverters and regulators. 50KW above the inverter almost with the transformer.
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:In a photovoltaic grid-connected project, the role of the inverter is to convert the voltage into AC 220V or 380V for the grid, since the transformer will raise the voltage again
Part of the distributed grid-connected projects, the basic are "spontaneous use, the power of the Internet," these do not need to boost, because the extra power is actually consumed by the surrounding electricity users, do not boost to a Level power grid;

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