Grid-Tie 300W Pure Sine Wave Inverter DC10.5V~28V AC 180-260V
45Hz-53Hz for Solar Input Power
If you are wanting to generate useful electricity with your solar panels/wind generator and use the electricity to power the appliances in conjunction with incoming power from the Municipality, then YOU HAVE TO USE a GRID-TIE inverter. NO OTHER TYPE of inverter will work. If you connect other types of inverters to the municipal mains, there will be a BIG BANG. The GRID-TIE inverter measures the mains frequency initially and then generates its power from the solar panels in EXACT SYNC with the Municipal power. It continually monitors the frequency and if it detects them going out of phase then it disconnects and starts again. It is the ONLY device that will suck as much energy that a solar panel can deliver and convert it to useful electricity. No expensive batteries are needed.
If you are into solar energy to reduce your dependancy on City Power, then the Grid Tie inverter is the greatest invention since sliced bread.
We are selling one of these units that have been in operation for a few months and which is now surplus to our needs as we have upgraded to a larger capacity.
We are still using another six of them in parrallel to convert our solar energy into useful mains energy to run fridges, freezers, DSTV, vacuum cleaners, kettles ,washing machines and all the house hold appliances.
We have 6 of these in full time operation linked together and have converterd more than 10000kwH (10MWH)(worth about R15000) of energy to electricity over the past two years.
As these units have no moving parts, their lifetime expectation is similar to that of solar panels.(25 years)
A grid tie inverter manages the energy from the solar panels and converts it very efficiently to mains power in exact phase with the City Power. It needs no batteries and has efficiencies as high as 95%.
It is very safe and will cutoff all power generation within a few milliseconds of the City Power supply failing.
It is about the only device on the market that can keep solar panels working at optimum efficiency throughout the day, taking all the availalble sun power and turning it into useful energy.
Different manufacturers of solar panels produce panels that different performance specifications. The Gridtie inverter has features to continously monitor the current andf voltage being delivered and adjust the parameters. Their is a trend now overseas to see micro grid tie inverters built into the back of solar panels on the roof and to deliver optimised mains power delivery.
On solar arrays that have a single generation point, whenever a part of the array falls into shade then the entire system is compromised. With micro gridtie inverters, shade only affects a minor part of the array and all the rest of the array keeps delivering power at full capacity.
To use these gridtie inverters, connect the solar panels to the inverter, and plug the inverter into a mains plug just like you would plug in any appliance like a kettle. There is no need for special wiring or connection to your mains supply.
Specifications:
Output Type: Single
Output Power : 201 - 300W
Input Voltage: 10.5V~28V DC (Note this is for 12 volt systems - that is VOC on solar panels must be less than 28 volts)
Output Current: Pure Sine Wave
Output Voltage: 180V~260VAC
Output Frequency: 45Hz~53Hz
Weight: 1.3KG
Features
- Directly connected to the solar panels (do not need to connect the battery)
Using precise MPPT function, APL functions, the inverter automatically adjust the solar panels of maximum output power,simply connect the solar panel to the grid inverters. Do not need to connect the battery.AC 0 angle with high precision auto-detection
- AC phase angle of 0 through isolation amplifier then input to the MCU for high-precision detection and analysis.
The phase shift rate is less than 1%, thus achieve high-precision with phase modulation AC output together.
- Synchronous High-frequency Modulation
- Pure Sine Wave Output
- Power Automatically Locked (APL)
The MPPT function adjusts to the maximum power point, the product automatically locks in maximum power point, then make the output power more stable.
- *Maximum Power Point Tracking (MPPT)
Because the solar current intensity and the voltage changes at any time this product uses high-precision MPPT power operation to automatically and immediately adjust the solar panels output power at the maximum output point and achieve a stable output purposes.
- Automatically Adapt To Different Load Power Factor
- Automatically Shut Down When The Power Output Of a Fault
When the city power system is in failure, the inverter will automatically turn off the output. - Current Limit Protection
- Stack Multiple Machines
Paramaters: - Grid-series models 300W
- Recommend use solar panels 420Wp
- DC Maximum Input Power 400W
- DC maximum voltage VpvDC 30.2VDC
- DC voltage range Vpv 10.5V~28VDC
- Maximum output power factor 99%
- Maximum input current 20A
- AC output power 300W
- AC maximum output power 300W
- Anti-voltage protection Fuse
- AC standard voltage range 180~260VAC
- AC frequency range 45Hz-53Hz
- Output current totalharmonic distortion THDIAC <5%
- Phase <1%
- Islanding protection VAC
- Output short circuit protection Current-limiting
- Display LED (green/red)
- Installation Wall hanging
- Cooling Fan
- Standby Power <2W
- Night Power <1W
- Ambient temperature range -25 °c~60°c
- Humidity 0~99%(Indoor Type Design)
- Waterproof Indoor Type Design
Graph showing power converted from solar panels by an array of grid tie inverters. Location Johannesburg - mid winter
You can find more info on the use of this device at http://rapidttp.co.za/gridtie.html
South African buyers only
