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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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: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:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
In addition to the function of converting DC current into alternating current, the inverter also has the maximum output tracking function (MPPT), overvoltage protection, short circuit protection, island protection, overheat protection, overload protection and DC grounding
Q:What are the methods of photovoltaic grid-connected inverter control
and can set the dead time between the upper and lower arms, the use of INTEL 80C196MC to achieve sine wave output circuit, 80C196MC to complete the sine wave signal, AC output voltage, to achieve regulation. Circuit output generally use LC circuit filter high frequency wave, get pure sine wave.
Q:PV grid-connected inverter and independent inverter in the control of what is the difference
PV grid-connected inverter in the grid before the inverter needs to determine the phase voltage phase frequency, the first phase-locked, in the grid and power generation.
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: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
By dc / dc conversion to increase or decrease the input voltage, adjust its output to achieve maximum efficiency.
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: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

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