500KW Solar Inverter For Solar Power Plant or Solar Power System without Transformer

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$22,000.00 - 24,750.00 / unit
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China main port
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TT or LC
Min Order Qty:
10 unit
Supply Capability:
1000 unit/month

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Product Description:

1. Structure of 500KW Solar Inverter for Solar Power Plant or Solar Power System without Transformer 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 500KW Solar Inverter for Solar Power Plant or Solar Power System without Transformer

•  With the advanced system intelligence, highly speed MPPT technology, industrial-grade engineeringand compete fault

    protections,Sunforest series central commercial inerters maximize system uptime and power production, even in harshest

    environments

• DSP-controlled IGBT circuitry to achieve high efficiency, reliability and low installing cost.

•  Sunforest KT series grid-tied inverters are integrated with an isolatin transformer

• Multiple work mode, SVG(Static Var Generator) mode, Anti-Reverse power control mode

 

Utility-read features

•  Open communication protocol, good compatible with any third-party monitoring system and easily integrated into SCADA

   systems

•  Remote control of real and reactive power

•  LVRT(Low voltage ride through)

•  Power factor control

•  Simplified grid interconnection

 

Optimal MPPT technology

•  Rapid and accurate control boost PV plant KWH yield

•  Provides a wide range of operation voltage

 

 

3. 500KW Solar Inverter for Solar Power Plant or Solar Power System without Transformer Images

 

 

4. 500KW Solar Inverter for Solar Power Plant or Solar Power System without Transformer Specification

Max. DC Input Power

285KW

570KW

715KW

Max DC Voltage

1000Vdc

MPPT Operating Range

450~820Vdc

Number of Parallel Inputs

5

12

Number of MPP Trackers

1

Max. Input Current

600A

1200A

1400A

Nominal Output Power

250KW

500KW

630KW

Max. Output Power

275KW

550KW

693KW

Nominal Output Current

535A

1070A

1155A

Max. Output Current

589A

1177A

1270A

Nominal AC Output Voltage

270Vac

270Vac

315Vac

AC Output Voltage Range

243~297Vac

283~347Vac

AC Grid Frequency Range

50Hz

Power Factor (cosφ)

0.9(leading)~0.9(lagging)

THDI

<3%

Max.efficiency

98.40%

98.50%

98.60%

Euro.efficiency

98.00%

98.00%

98.20%

MPPT. efficiency

99.90%

99.90%

99.90%

Operating Temperature

-25°C~+60°C(derated power above50°C)

Altitude

6000m(derated power above 3000m)

Noise (typical)

<65dB(A)

Operating Consumption

<100W

Electrical Isolation

Transformerless

Cooling Concept

Fan Cooling

Protect Level

IP20

Communication

RS485

Dimension (W×D×H)(mm)

1000*900*1850

1700*900*1850

1700*900*1850

Weight (Kg)

890

1427

1677

 

5. FAQ of 500KW Solar Inverter for Solar Power Plant or Solar Power System without Transformer

Q1:Can we visit your factory?

    A1:Sure,welcome at any time,seeing is believing.

Q2:Which payment terms can you accept?

    A2:T/T,L/C,Moneygram,Paypal are available for us.

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- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the PV inverter starting voltage
sine wave becomes narrower and the voltage width in the center of the sine wave is widened and the switching element is always operated in a direction at a certain frequency in a half cycle, A pulse wave train (pseudo sine wave). Then let the pulse wave form a sine wave through a simple filter
Q:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
Grid-connected inverter can be operated locally through the LCD screen, or through remote monitoring with dedicated monitoring software.
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.
Grid-connected inverter is generally used with large-scale photovoltaic power plant system, a lot of parallel PV string is connected to the same set of inverter DC input, the general power of the use of three-phase IGBT power module, power
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: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 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: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: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
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.

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