Off-Grid Low Frequency PV Inverter EP3200 Series 4KW-6KW

Ref Price:
$560.00 - 650.00 / unit
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China main port
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TT or LC
Min Order Qty:
50 unit
Supply Capability:
1000 unit/month

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

EP3200 series off-grid low frequency PV inverter adopt very new model copper transformer so the efficiency reach to 90% and lower

 consumption (NEW !)

Pure sine wave solar hybrid inverter for solar system and home appliances . EP3200 series off-grid low frequency PV inverter developed on

 the base of our very popular EP3000 series . EP3200 has achieved significant improvements on battery charging , AC transfer , bypass

etc .

By adopting DIP(Dual-in-line) switch , EP3200 series off-grid low frequency PV inverter provides more smarter options for users to

customize the performance of the device . Main for home solar system including air conditioner , refrigerator , washing machine , water

pump , fans , tv , lights etc.

 

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 4KW-6KW

Off-Grid Low Frequency PV Inverter EP3200 Series 4KW-6KW

Off-Grid Low Frequency PV Inverter EP3200 Series 4KW-6KW

Off-Grid Low Frequency PV Inverter EP3200 Series 4KW-6KW

 

4. Off-Grid Low Frequency PV Inverter Specification

Rated Capacity 

4000W 

5000W 

6000W 

Efficiency

>90%

Input

Model

120v Models

230v Models

Nominal Voltage

100V/110V/115V/120VSelectable

200V/220V/230V/240V Selectable

Output

Rated Power

4000W

5000W  

6000W

Output Voltage

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

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

Voltage Waveform

Pure Sine Wave

Crest Factor

3:01

Transfer Time

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

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

Max Bypass 

30A

Overload Current

Input

Nominal Voltage

DC24V/48V

DC48V

DC48V

Over Current Protection

By Re-Settable Over Current Protector

Output

Regulation (Nominal)

±10% Typical Of Nominal Voltage

Nominal Input Voltage

230Vac

Input Voltage Range

185-265Vac

Nominal Output Voltage

According To The Battery Type

Nominal Charge Current

30Amp-70Amp

Battery Type

Lead-Acid 12Ah ~ 250Ah

Typical Backup Time

No Limit

Charging Method

Smart Pulse Charging With Two Charging Modes:

Quick Charging When Battery Is Not Fully Charged, 

Trickle Charging When Battery Is 90% Fully Charged.

Average Charging

65A/35A

70A/40A

50A

Current

Battery Voltage options

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 Battery:

Low Battery & Battery Over Voltage

Alarm On Abnormal Operation:

Over Load, Short-Circuit, & Over Heat

Environment And Safe

Operating

0℃ To 40℃ (32℉ To 104℉)

Temperature

Transit/Storage 

-15℃ To 60℃

Temperature

Audible Noise

60 Dba Max at 1m

Quality Control System

ISO 9001,FCC,CE

Physical

Dimensions: (H×D×W)

755*320*310mm

G.W (Kg)

37.5

47.5

47.5

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?
A1. Inverter 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?
A2. MPPT 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:Photovoltaic grid-connected inverter without DC emc how will happen
light is obtained by the electrons of the semiconductor device, thus generating electrical energy. This energy conversion of light energy into energy, that is, solar cells. Solar cells, like transistors, are made of semiconductors. Its main material is silicon, and there are some other alloys. High-purity silicon used in the manufacture of solar cells is subject to special purification. Solar cells as long as the sun or light exposure,
Q:PV grid-connected inverter can directly load it?
TL5001 operating voltage range of 3.6 ~ 40V, its internal with an error amplifier, a regulator, oscillator, a dead zone control PWM generator, low voltage protection circuit and short circuit protection circuit
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 small use of field-effect transistors while using a DSP conversion controller to improve the quality of the output power makes it very close to the sine wave current.
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 are the methods of photovoltaic grid-connected inverter control
Inverter main circuit need to have a control circuit to achieve, generally have square wave and sine wave two control methods, square wave output inverter power supply circuit is simple, low cost, but low efficiency, harmonic components. Sine wave output is the development trend of the inverter, with the development of microelectronics technology, there are PWM function of the microprocessor has also come out, so the sine wave output inverter technology has matured.
Q:Is the PV inverter a current source or a voltage source?
For the inverter for the grid system, depending on whether the transformer can be divided into transformer-type inverter and transformer-free inverter.
Q:The function of photovoltaic grid - connected inverter
After some additional voltage buffering, the left side of the bridge is usually 18 ~ 20khz switching frequency, the dc voltage is converted to ac voltage.
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
Have a low pressure through the function set, low pressure through the scope of the project requirements, grid and network requirements and the actual situation of the design), low voltage grid to pass the voltage range is less than the medium pressure, parameter settings are not sensitive and complex.
Q:Photovoltaic grid-connected inverter problem
But Baidu Encyclopedia clearly pointed out: the zero line is the secondary side of the transformer leads the neutral point of the line, and the phase line constitutes a circuit for power supply equipment.
Q:The working principle of photovoltaic grid - connected inverter
In the small-capacity inverter generally push-pull inverter circuit, full-bridge inverter circuit and high-frequency step-up inverter circuit three, push-pull circuit, the step-up transformer neutral plug connected to the positive power supply, two power Alternating current, the output to get AC power, due to the power transistor to ground, drive and control circuit is simple, and because the transformer has a certain leakage inductance, can limit the short circuit current, thus improving the reliability of the circuit. The disadvantage is the low utilization of the transformer, driving the emotional load is poor.

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