Pure Wave OnGrid Inverter Manufacturer | Wholesale Factory
Buy wholesale pure wave ongrid on-griders direct from China factory. 98.4% max efficiency, dual MPPT track, 5-year warranty. Low MOQ. Get a quote.
Product Overview & System Integration
The Hemao pure wave on-grid inverter transforms direct current from photovoltaic string arrays into stable utility-synchronous pure sine wave alternating current. Engineered for grid-tied commercial rooftops and utility-scale solar installations, this power unit syncs with local utility networks across worldwide grid configurations (220V/380V, 230V/400V). The dual independent MPPT channels manage asymmetrical string voltages caused by partial shading or varied azimuth layouts. As an established China source factory, Xiamen Hemao Industry delivers structural hardware and firmware adaptation. This includes localized grid-code compliance programming (VDE-AR-N 4105, EN 50549-1, AS4777.2), PCB topology optimization for high-voltage DC paths, and integrated RS485/WiFi/GPRS monitoring interfaces.

Material & Technical Specifications
|
Technical Parameter |
Specification Value / Operational Limit |
|
Output Waveform |
Pure Sine Wave (THD <3% linear load) |
|
Maximum Efficiency |
98.4% (Euro Efficiency 98.0%) |
|
Maximum DC Input Voltage |
1100V |
|
MPPT Voltage Range |
200V - 1000V |
|
Number of MPPT Trackers / Strings |
2 / 2 |
|
Maximum Input Current per MPPT |
15A / 15A |
|
Nominal AC Output Power |
10kW / 15kW / 20kW Options |
|
Nominal Grid Voltage / Range |
3/N/PE, 230V/400V (310V - 480V) |
|
Grid Frequency Range |
50Hz / 60Hz (±5Hz window) |
|
Power Factor Adjustment Range |
0.8 leading to 0.8 lagging |
|
DC Reverse Polarity Protection |
Integrated |
|
AC Short Circuit Protection |
Integrated |
|
Over-Voltage Protection (OVP) |
Type II DC & Type II AC Surge Protection |
|
Enclosure Material / IP Rating |
Die-cast Aluminum Alloy / IP65 |
|
Cooling Method |
Natural Convection / Passive External Heat Sink |
|
Operating Temperature Range |
-25°C to 60°C (derating above 45°C) |
|
Maximum Operating Altitude |
4,000 meters |

Quality Control & Global Standards
Xiamen Hemao Industry implements rigorous performance verification protocols inside our manufacturing units. Every pure wave on-grid inverter passes multi-stage automated optical inspections (AOI) and component-level circuit verification. Assembled mainboards undergo an enclosed 48-hour high-temperature full-load burn-in cycle to eliminate infant mortality components. Our manufacturing processes conform to ISO9001 and ISO14001 frameworks. Every shipping lot is delivered with comprehensive white-box laboratory data sheets, certifying compliance with CE directives, IEC 62109-1/-2 safety mandates, IEC 61000 electromagnetic compatibility regulations, and region-specific anti-islanding certification parameters.
Packaging & Logistics Safety
Photovoltaic inverters contain heavy magnetics and static-sensitive power electronics demanding specialized mechanical protection. Hemao utilizes export-grade packaging consisting of form-fitting anti-static polyethylene foam blocks that encapsulate the entire inverter frame. The primary chassis is placed within a reinforced double-wall corrugated shipping master carton. For wholesale multi-unit logistics, cartons are systematically stacked on ISPM-15 compliant fumigated wooden pallets, wrapped with heavy-gauge puncture-resistant stretch film, and bound tightly by multi-point PET structural horizontal and vertical straps to ensure safe containerized ocean transit.

Typical Application Scenarios
Commercial Rooftop Arrays: Tied to localized grid networks for industrial peak load shedding and operational emission reduction.
Large-scale Solar Irrigation: Drives centralized AC pumping stations directly integrated with localized distribution micro-grids.
Public Infrastructure Installations: High-reliability power injection into municipal schools, hospitals, and EV charging station main distribution frames.
FAQ
Q: How does this pure wave ongrid inverter maintain compliance with different regional anti-islanding safety codes?
A: The internal micro-coon-gridntroller is flashed at the factory level with distinct firmware matrices containing localized parameters (such as IEEE 1547 or grid-specific thresholds). The passive and active frequency-shift algorithms monitor grid variations, triggering an isolation disconnect within 100 milliseconds if utility power drops.
Q: What is the precise linear conversion efficiency penalty when operating at extreme high-temperature thresholds?
A: The passive cooling architecture maintains 100% rated output up to 45°C ambient air temperatures. Above this point, an internal thermal sensor engages linear power derating to mitigate IGBT degradation, reducing output by approximately 1.5% per degree Celsius up to the 60°C operational limit.
Q: What is the minimum factory order volume and processing period for an integrated custom zero-export firmware mod?
A: Modifying the control loop firmware to interface with localized smart meters for absolute zero-export grid compliance requires an MOQ of 20 units. Once the specific meter protocol is verified by our engineering desk, code adaptation and physical integration require 14 working days.
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