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:What is the PV inverter starting voltage
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. According to the waveform modulation method can be divided into square wave inverter, stepped wave inverter, sine wave inverter and modular three-phase inverter. For the inverter for the grid system, depending on whether the transformer can be divided into transformer-type inverter and transformer-free inverter.
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:Installation and maintenance of photovoltaic grid - connected inverter
, any failure that affects the safety performance of the inverter must be immediately removed before turning on the inverter again.
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
Which depends on the grid inverter in the absence of the grid there is no independent operation of the function of the general grid inverter is the current type, only responsible for the power to the grid, the voltage is maintained by the grid,
Q:PV grid-connected inverter and independent inverter in the control of what is the difference
The independent inverter in the output voltage phase amplitude of the frequency control is initially set good. Independent inverter, you should refer to off-grid inverter, do not need to consider the grid situation.
Q:What are the methods of photovoltaic grid-connected inverter control
Sine wave output inverter control integrated circuits, sine wave output of the inverter, the control circuit can be used microprocessor control, such as INTEL company produced 80C196MC, Motorola produced MP16 and MI-CROCHIP company PIC16C73 and so on, these single-chip microcomputer has a multi-channel PWM generator,
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
Inverter will be converted into alternating current DC, if the DC voltage is low, then through the AC transformer boost, that is, the standard AC voltage and frequency. For large-capacity inverter, because the DC bus voltage is high, AC output generally does not require transformer boost that can reach 220V, in the small and medium capacity of the inverter, because the DC voltage is low, such as 12V, 24V, It is necessary to design a boost circuit.
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;
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 does not need energy storage, but the energy can not be controlled, how much light to send online to the number of online, simply do not want people to the grid does not like.

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