KD-WV250 Series Micro Inverter,High Efficiency & Best Cost-Effectiveness

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Product Description:

Structure

DC input voltage range22-50VDC

AC output voltage range80-160VAC/180-260VAC

AC output power 260Wp

AC frequency range50Hz/60Hz

G.W.0.85kg

Size250mm*200mm*60mm

KD-WV250 Series Using IP65 waterproof streamline design, Can effectively prevent rainwater on the surface erosion, Built-in high-performance Maximum Power Point Tracking(MPPT)Function,Better able to track changes in the solar luminosity and control different output power, Effectively capture and collect sunlight. AC electric power transmission using the reverse transmission technology, Is one of our patented technology, The inverter output power can provide load priority use, Extra electricity to the grid, Efficient use of the inverter to the power emitted, Electricity transmission rate of up to 99%.

Features

Pure Sine Wave Output;

High performance Maximum Power Point Tracking(MPPT);

Power Automatically Locked(APL);

Reverse power transmission;

High-Frequency High Conversion Rate;

Anti-Islanding Protect;

Input /output is fully isolated to protect the electrical safety;

Multiple parallel stacking;

The Leading Patent Technology;

IP65 WaterProof;

Flexible Installation;

Simplify maintenance (user serviceable)

High Efficiency & Best Cost-Effectiveness

 

Images

KD-WV250 Series Micro Inverter,High Efficiency & Best Cost-Effectiveness

KD-WV250 Series Micro Inverter,High Efficiency & Best Cost-Effectiveness

 

 

 

 

Specification

Input Data

KD-WV250-120VAC/230VAC

  Recommended input power

200-300Watt

  Recommend the use of PV modules

300W/Vmp>34V/Voc<50V

  Maximum input DC voltage

50V

  Peak power tracking voltage

25-40V

  Operating Voltage Range

17-50V

  Min / Max start voltage

22-50V

  Maximum DC short current

15A

  Maximum Input Current

9.8A

  Output Data

@120VAC

@230VAC

  Peak power output

260Watt

260Watt

  Rated output power

250Watt

250Watt

  Rated output current

2.08A

0.92A

  Rated voltage range

80-160VAC

180-260VAC

  Rated frequency range

57-62.5Hz

47-52.5Hz

  Power factor

>96%

>96%

  Maximum units per branch circuit

15PCS(Single-phase)

30PCS(Single-phase)

  Output Efficiency

@120VAC

@230VAC

  Static MPPT efficiency

99.5%

99.5%

  Maximum output efficiency

92.3%

94.6%

  The average efficiency

91.2%

93.1%

  Night time power consumption

<50mW Max

<70mW Max

  THDI

<5%

<5%

  Exterior

  Ambient temperature

-40°C to +60°C

  Operating temperature range (inverter inside)

-40°C to +82°C

  Dimensions (WxHxD)

191mm*1176mm*38mm

  Weight

0.83kg

  Waterproof Rating

IP65

  Cooling

Self-cooling

  Feature

  Power transmission mode

Reverse transfer, load priority

  Electromagnetic compatibility

EN50081.part1EN50082.part1

  Grid disturbance

EN61000-3-2 Safety EN62109

  Grid detection

DIN VDE 1026 UL1741

  Certificate

CEC,CE National patent technology

 

KD-WV250 Series Micro Inverter,High Efficiency & Best Cost-Effectiveness

KD-WV250 Series Micro Inverter,High Efficiency & Best Cost-Effectiveness

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FAQ

Can we visit your factory?

Surely, I will arrange the trip basing on your business schedule.

Can you do OEM for us?

Yes, we can.

How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

Can you help us install the module if we cooperate with you?

We haven’t entered into installation sector, but we have the plan in near future.

 

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- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the PV inverter starting voltage
The inverter not only has the function of direct current conversion, but also has the function of maximizing the performance of the solar cell and the system fault protection function. (With grid system), automatic voltage adjustment function (for network connection), DC detection function (for network connection), DC grounding detection (for network connection), automatic power control function Function (for grid connection). Here is a brief introduction to automatic operation and shutdown function and maximum power tracking control function.
Q:PV grid-connected inverter can directly load it?
Grid-connected inverter is like a car file, he first detects the grid waveform, can not detect not boot, and then the PV DC modulation and consistent with the grid waveform, and then hang up.
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:What is the difference between a PV inverter and a solar inverter?
The main component of the inverter is the three-phase bridge converter. The main purpose of the grid-connected inverter is to change the power to DC and change the AC power. The main purpose is to improve the power quality (because the wind power generation is very large
Q:Is the grid side of the grid and the inverter?
The grid load side of the grid is the grid. The inverter is an important part of the PV grid-connected system and can not be regarded as an external load. Photovoltaic power generation system is included in both grid and off-grid.
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
When the power grid failure or disturbance caused by the power supply and network voltage drop, in the voltage drop range, the power group can be uninterrupted through the inverter and network operation.
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Offline generally need energy storage, not to send energy online. Power grid has no right to interfere.
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
Connected to the grid is connected to which specific location ah? Transformer is to buy a separate, or buy inverter inside the type of transformer? For example, Sweden's 15KW and 30KW grid roof projects, the roof, for example, more remote to be transported to other electricity.
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Off-grid inverter is equivalent to their own to establish an independent small power grid, mainly to control their own voltage, is a voltage source.

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