On Grid Solar Inverter GW17K-DT

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Product Description:

GW17K-DT

 

GW17K-DT photovoltaic inverter is suitable for commercial and industrial roofs as well as small and medium-sized photovoltaic power systems. The optimized inductor design ensures less noise and higher European efficiency. The reliable grid support capabilities, high waterproof and dustproof grade and extra-wide voltage access range of components not only can be used in commercial roof and commercial power station systems, but also is qualified for the design requirements of large-megawatt power station.

DC Input DataMax.PV-generator power[W]17500
Max.DC voltage[V]1000
MPPT voltage range[V]500~800
Turn on DC voltage[V]250

Max.DC work current[A]

22/22
Number of inputs/MPP trackers6/2
DC connectorSUNCLIX,MC IV (optional)
Standby power consumption [W]10
AC Output DataNominal AC power[W]17000
Max.AC power[W]17000
Max.output current[A]25
Nominal output voltage rangeVDE-AR-N4105,VDE0126-1-1/A1,RD1699,G59/2,AS4777.2/.3
AC grid frequencyVDE-AR-N4105,VDE0126-1-1/A1,RD1699,G59/2,AS4777.2/.3
THDi<1.5%< td="">
Power factor0.90 leading...0.90 lagging
AC connection3W/N/PE,230/400V
EfficiencyMax.efficiency98.2%
European efficiency97.5%
MPPT adaptation efficiency>99.5%
Safty EquipmentLeakage current monitoring unitIntegrated
DC switch disconnectorOptional
Islanding protectionAFD
Grid monitoringVDE-AR-N4105,VDE0126-1-1/A1,RD1699,G59/2,AS4777.2/.3
Normative ReferenceEMC complianceEN 61000-6-1 , EN61000-6-2, EN 61000-6-3, EN 61000-6-4
Safety complianceIEC 62109-1, AS3100
General DataDimensions(W*H*D) [mm]516*650*203
Net weight [kg]39
HousingFor outdoor and indoor
Mounting informationWall mounting
Operating temperature range-20~60℃(up 45℃ derating)
Relative humidity0 ~ 95%
Site altitude[m]2000
IP proection classIP65
TopologyTransformerless
CoolingFan Cooling
Noise level[dB]<45< td="">
Display5"LCD
CommunicationUSB2.0;RS485/Wi-Fi/ZigBee(optional)
Standard warranty[years]5/10/15/20/25(optional)

 

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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: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: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: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: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
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 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: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
Unless the power is not issued for their own use, is to be sent to other areas, it needs to boost, such as the western region of those large power stations
Q:What are the methods of photovoltaic grid-connected inverter control
The square wave output of the inverter using pulse width modulation integrated circuits, such as SG3525, TL494 and so on. Practice has proved that the use of SG3525 integrated circuits, and the use of power FET as a switching power components, to achieve high performance of the inverter, because the SG3525 has a direct drive power FET capability and has an internal reference source and operational amplifiers and Undervoltage protection, so its peripheral circuit is very simple.
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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