Central Inverter With External Transformer Adopts High Power Density Design to be Smaller Size

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Product Description:

EA500KTS/M / EA630KTM/X    

 

The central inverter with external transformer adopts high power density design to be smaller size and optical fiber isolation technology to have strong anti-jamming capability, and also integrates DC distribution cabinet function to be more suitable for big power plant; and. It offers different output voltage options

   

● Low-voltage and zero-voltage ride through to cope with various grid conditions
● Nighttime SVG function, ready for power compensation full time
● Adjustable active power, power factor adjustment from 0.9 overexcited to 0.9 underexcited 
● Max. Efficiency at 98.7% (without transformer)
● Advanced MPPT algorithm
● Anti-islanding
● Wide DC input voltage, easy to make the combination of PV array
● CQC certificates (pass CQC33-461239-2013ma test), TÜV certificates, CE certificates

 

 

Specification / Type

EA500KTS

EA500KTM

EA630KTM

EA630KTX

Input (DC)

Max DC Voltage

1000Vdc

1000Vdc

1000Vdc

1000Vdc

Full-load MPPT Voltage Range

450~820Vdc

500~850Vdc

500~850Vdc

500~850Vdc

Max DC Power

550KWp

550KWp

630KWp

630KWp

Max DC Current

1200A

1100A

1260A

1200A

Number of DC Inputs

16

16

16

16

Output (AC)

Nominal AC Power

500KW

500KW

630KW

630KW

Nominal AC Voltage

270Vac

315Vac

315Vac

400Vac

AC Voltage Range

210~310Vac

245~362Vac

245~362Vac

312~460Vac

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

Weight

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 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:What is the difference between a PV inverter and a solar inverter?
The main function of photovoltaic grid-connected inverter is to convert the DC power of the solar PV module into the same frequency as the sinusoidal AC power of the grid (the grid is generally AC power grid, DC can not be directly connected)
Q:Is the grid side of the grid and the inverter?
Grid-type system power transmission sequence: photovoltaic panels> relays> inverters> relays> electricity load + power grid (both in parallel).
Q:PV grid-connected inverter can directly load it?
Converter is the AC voltage of the grid into a stable 12V DC output, and the inverter is the AC output of the 12V DC voltage into high-frequency high-voltage alternating current; two parts are also used with more pulse width
Q:The function of photovoltaic grid - connected inverter
Finally, a sinusoidal AC output for a grid-connected photovoltaic power generation system is generated by a low-pass filter.
Q:Installation and maintenance of photovoltaic grid - connected inverter
Before making an electrical connection, be sure to use the opaque material to cover or disconnect the PV panel. Exposure to sunlight, photovoltaic arrays will produce dangerous voltages. All installation operations must be done only by qualified technicians.
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
Inverter is the DC power (battery, battery) into alternating current (usually 220V, 50Hz sine wave). It consists of inverter bridge, control logic and filter circuit
Q:Photovoltaic grid-connected inverter without DC emc how will happen
by means of energy converters can be converted into electrical energy. The process of converting light energy directly into electrical energy is precisely the response to photovoltaic effects. Without the need for any other mechanical parts, the energy in
Q:Photovoltaic grid-connected inverter problem
Hello, the definition of the zero line is not caused by the transformer three-phase electric tail connection? I now do not understand why there is no isolation transformer AC output marked is N (zero line), and it is not the transformer three-phase power of the tail connection leads to, this is the zero line? The The
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
, This method is simple to design, easy maintenance, but also for the power grid harmonics smaller, good power quality!

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