Best and cheap 48 volt solar off grid inverter/ inverter charger on inverter.com online store, which is 4000W (6000VA) power rating, converting 48V DC to 110V/ 120V/ 220V/ 230V/ 240V AC. This low frequency inverter charger is perfect for most off grid systems.
- Pure sine wave output for compatibility with loads of different types
- Visualization of operation status of the equipment through a digital LCD
- Automatically transfer between battery and line modes
- Pure sine wave output (THD < 3%) for wide range of applications and harsh environment
- A wide range of input voltage, accurate output and all automatic voltage stabilization
- Overall protection functions (battery overvoltage protection, battery under voltage protection, overload protection, short circuit protection and over temperature protection)
|Rated power load
||DC 42-60V (48V)
||110V/ 120V/ 220V/ 230V/ 240V AC (Same as the output voltage)
||50Hz/ 60Hz±5% (Auto)
||110V/ 120V/ 220V/ 230V/ 240V AC (optional)
||50Hz/ 60Hz±5% (Auto)
||Pure sine wave
||≥85% (full load)
|Wave form distortion factor
|Output power load factor
||105-120% at 30s; 120-150% at 10s; >150% at 5s
||DC 10.5 (12V)/ DC 21 (24V)/ DC 42 (48V)/ DC 84 (96V), Alarm and shut down
||85℃, Auto shut down after alarm
||DC 17V (12V)/ DC 33V (24V)/ DC 66V (48V)/ DC 128V (96V), Auto shut down after alarm
||0-30A adjust (It's the current range for charging the battery under (AC) commercial power preferred mode)
||Time & date setting, Contrast, Brightness, Sound, Voltage switch, Grid charger, Clear records, Reset
||Grid fist/ battery first/ standby mode
||Record (fault record), system information
||10%~90% (No condensation)
||<3000 (>1000m, derating)
Inverter for Solar Panel System
Tips: What are the requirements of electrolytic capacitors for PV solar inverter?
As an important part of photovoltaic power generation, the main function of solar inverters is to convert DC from photovoltaic modules into AC. So, what are the requirements of electrolytic capacitors for photovoltaic solar inverters?
1. High voltage
General high-power photovoltaic solar inverters incorporate the converted AC directly into the high-voltage power grid, but from the safety point of view, the output voltage of photovoltaic battery pack is generally not higher than 900V, two 450V electrolytic capacitors can be selected in series, but in order to improve security, two 500V electrolytic capacitors can be selected in series. Therefore, high voltage capacitors are needed to reduce the series connection of capacitors and improve reliability.
2. High ripple resistance
In general, the current flowing through capacitors of photovoltaic inverters is 0.44 times of the effective value of the output current of the inverters. For example, the output voltage of photovoltaic inverters is 250V, the output current corresponding to 1 kW output power is about 2.54A, and the current flowing through DC bus capacitors is 1.12A. DC bus capacitors of 100 kW PV solar inverters need to flow through 112A RMS current. The rated current of the selected capacitors should not be lower than this value. If the rated current of an electrolytic capacitor can not meet the requirements, it is necessary to select multiple electrolytic capacitors in parallel to obtain the required current value. Therefore, a single electrolytic capacitor with high ripple resistance is required to reduce the number of parallel electrolytic capacitors and improve the overall reliability.