EA500KTL/H Wider Input Voltage Range and Higher Efficiency ON-GRID PV - Central Inverter

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Product Description:

EA500KTL/H    

EA500KTF is designed with external isolation transformer. It has wider input voltage range and higher efficiency. Moreover, optical fiber isolation technology has been adopted to increase its anti-interference ability. Complete protection, higher MPPT efficiency, simple monitoring and capability of parallel operation make it ideal for large scale PV power plant.

   

 

● Maximum efficiency up to 98.7% (without transformer)
● Effective IGBT module
● Wide MPPT range, convenient for module configuration
● With DSP + CPLD digital control technology, having complete protection, safe and reliable
● Advanced MPPT (Maximum Power Point Tracking) algorithms
● Advanced Anti-islanding technology
● Efficient thermal system design, suitable for critical PV applications
● Multilingual LCD, easy to operate
● Integrated multi-communication interfaces, easy to monitor
● Low voltage ride through function
● For large centralized power plant connecting to high-voltage grid (with external step-up transformer)
● Active and reactive power regulation function (optional)
● TÜV CE, CQC certification

 

Specification / Type

EA500KTL

EA500KTH

Input (DC)

Max DC Voltage

1000Vdc

Full-load MPPT Voltage Range

450~820Vdc

Max DC Power

550KWp

Max DC Current

1200A

1100A

Number of DC Inputs

16

16

Output (AC)

Nominal AC Power

500KW

Nominal AC Voltage

270Vac

350Vac

AC Voltage Range

210~310Vac

245~362Vac

Nominal Frequency

50Hz/60Hz

Frequency Tolerance Range

47-51.5Hz/57-61.5Hz

Distortion (THD%)

<3%(at nominal power)

Power Factor (Cos phi)

0.9(leading)~0.9(lagging)

System Parameters

Max Efficiency

98.7%

Euro Efficiency

98.5%

Protection Degree

IP20 (indoor)

Night Consumption

<100W

Operation Temperature Range

-25℃~+55℃

Cooling

forced-air cooling

Relative Humidity

0-95%, no condensation

Max Working Altitude

2000m (derating above 3000m)

Display and Communication

Display

LCD

Standard Communication

RS485

Optional Communication

Ethernet /USB

Structure Parameters

Dimensions(W×D×H)

1800×800×2200mm

1800×800×2200mm

Weight

1500kg

1500kg

·         Q. What is an UPS and What it is for ?

An uninterruptible power supply (UPS) is a device that allows your computer or telephone switch or critical equipement to keep running for at least a short time or longer time when the primary power source is lost. It also provides protection from power surges, spikes, brownouts, interference and other unwanted problems on the supported equipment.

·         Q. How long the UPS to run when power goes?

This can take 3 paths.
1.You can pick a UPS that is rated for pretty much the full VA you need so it will be running at 100% of capability and will thus last 'n' minutes.
2.You can pick a UPS that is rated at a much higher VA value than you really need so, for example, is running at 50% of capability and will thus last for longer than the UPS from option 1.
3You can use extra external battery packs to run for longer. If charging capability allows, the more and the bigger batteries you take with, the longer time UPS runs. 
or using a generator after about 6 hours, it will be more cost-effective, with a short runtime UPS to bridge the generator start-up gap.

 

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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:After the PV inverter, how to achieve the same period before the network?
When the voltage, frequency, phase does not meet the requirements, the automatic closing closing pulse.
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: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: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 is the difference between a PV inverter and a solar inverter?
Instability, the wind speed and the equipment itself will directly affect the generator rotation, so the voltage and current fluctuations, frequency instability, in short, is the power quality is poor) Therefore, through the inverter after the first rectification inverter to improve the quality of power
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:What is the difference between low voltage grid connection and medium voltage grid connection?
The difference is that the current at low voltage and the grid is large, the current is small when the voltage is small, followed by the low voltage crossing parameter setting problem (such as PV inverter integrated with inverter and low voltage crossing function, not all photovoltaic inverter
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter does not need energy storage, but the energy can not be controlled, the number of photovoltaic sent to send online how much, simply do not want people to.
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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