The Envertech EVT1200 is an on-grid microinverter system designed to convert direct current (DC) from photovoltaic (PV) modules into alternating current (AC) for utility grid connection. This system is characterized by its world top-class technology, ensuring high efficiency, reliability, and cost-effectiveness.
Function Description:
The core function of the EVT1200 microinverter is to maximize energy production from a PV array. Each microinverter is individually connected to one PV module, employing an individual Maximum Peak Power Point Tracker (MPPT). This unique configuration ensures that the maximum power available from each PV module is exported to the utility grid, regardless of the performance of other PV modules in the array. This means that even if individual PV modules are affected by shading, soiling, orientation, or PV module mismatch, the Envertech microinverter ensures top performance for its associated PV module, leading to maximum energy production from the PV system.
The Envertech microinverter system comprises three key elements:
- EVT1200 Microinverter: Converts the DC from the PV module into AC.
- EnverBridge: A monitoring device that protects the PV system and automatically reports to EnverBridge's server once connected to a broadband router or modem. It presents both real-time and historical performance data.
- EnverPortal: A web-based platform (http://www.envertecportal.com) and mobile application (EnverView for iOS and Android) that allows users to view real-time data, manage the system, and monitor performance.
Important Technical Specifications:
- Recommended Input Power Range: (180W~400W) * 4
- Max. DC input: 60Vdc
- Max. Input Short-circuit Current: 15A
- Operating Range: 16V~60Vdc
- Max. Input Continuous Current: 12A * 4
- MPPT Voltage Range: 22V~48Vdc
Output Data (AC):
- Normal Voltage: 220V/230Vac
- Frequency: 50Hz
- Current (Max. Continuous): 5.90A
- Power (Max. Continuous): 1200W
- Power Factor Range: +/-0.90
- Total Harmonic Distortion: <3%
- Maximum Units Per Branch: 5 Units (with 12AWG Cable)
Efficiency:
- Peak Inverter Efficiency: 95.6%
- EURO Weighted Efficiency: 95%
- MPPT Efficiency: 99.9%
- Nighttime Power Consumption: <100 mW
Features:
- Communication: PLCC (Power Line Carrier Communication)
- Lifetime: 25 Years
- Ingress Protection (IP): IP67
- Protective Class: Class I
- Temperature: -40°C to +65°C
- Relative Humidity: 0%~98%
- Overvoltage Category: OVC III (AC Main), OVC II (PV)
- Inverter Isolation: Non-isolated, High Frequency Isolated
- Dimensions: 316.5mm x 189mm x 46mm
Usage Features:
- Simple Design and Installation: PV systems using Envertech microinverters are easy to design and install. They support combinations of PV modules of any type, orientation, and quantity. The microinverter mounts directly on the PV rack, beneath each PV module, with low-voltage DC wires connecting directly from the PV module to the co-located microinverter, eliminating exposure to dangerously high DC voltage.
- Wide MPPT Voltage Range: Ensures high yield under various weather conditions.
- High MPPT Accuracy: Minimizes power loss during conversion.
- Comprehensive Protective Functions: Includes overvoltage/undervoltage protection, overfrequency/underfrequency protection, faulty grounding protection, grid monitoring, current monitoring in grounding, and DC current monitoring.
- Compatibility: The EVT1200 is adaptable to almost all 60-cell or 72-cell modules. Users should verify compatibility before installation.
- Monitoring: The EnverBridge and EnverPortal provide real-time and historical performance data, accessible via web browser or mobile app. The system automatically detects all microinverters within 10 minutes of energizing.
- Grid Parameter Adjustment: The voltage and frequency of the EVT1200 can be adjusted on-site by authorized installers, with approval from the local utility company, using EnverBridge to manage grid parameters.
- LED Status Indications: The microinverter's LED light blinks green for normal start-up and operation, and red for failures or waiting states.
Maintenance Features:
- Troubleshooting Guide: The manual provides steps for troubleshooting an inoperable microinverter, including checking AC breakers, grid voltage, AC line voltage, and DC connections.
- Error Reporting: LED status indications help identify issues such as waiting for sun, abnormal operation, or grid voltage/frequency range problems.
- Safety Precautions: Emphasizes that only qualified personnel should install, troubleshoot, or replace Envertech microinverters and associated components. It warns against attempting repairs, as the microinverter contains no user-serviceable parts, and tampering voids the warranty.
- Disconnection Procedure: Detailed instructions are provided for safely disconnecting microinverters from PV modules, including turning off AC branch circuit breakers, pulling AC connectors, covering PV modules, and removing grounding wires.
- Recycling and Disposal: In compliance with regulations, electrical and electronic wastes must be collected separately for recycling by qualified units. The device should not be disposed of in household trash.
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