Why Choose Low-Frequency Heavy Duty Inverter/UPS? The low-Frequency Heavy Duty inverter/UPS/ Solar PCU are reliable products as the isolation transformer is built-in to handle external problems like high and Low voltages, Spikes and surges.
Low-frequency heavy-duty inverters have advantages over high-frequency inverters in peak power capacity and reliability. Low-frequency inverters are designed to handle higher power peaks longer than high-frequency inverters. So if one has to run high peak motors or machinery like CNC machines or central air conditioning plants or running a complete building or factory, then the low frequency based inverter/UPS is the only solution.https://www.sciencetimes.com/articles/42696/20230306/understanding-the-difference-between-low-frequency-and-high-frequency-inverters.htm#:~:text=In%20conclusion%2C%20low%20frequency%20and%20high%20frequency%20inverters,compact%2C%20making%20them%20suitable%20for%20powering%20electronic%20devices.
Heavy-duty UPS with Lithium battery bank
1. PEAK POWER CAPACITY
According to the spectrum distinction table prepared by the Institute of Electrical and Electronics Engineers (IEEE), the low frequency is 30~300kHz, the middle frequency is 300~3000kHz, and the high frequency is 3~30MHz. The frequency plan in 30~300MHz is VHF, and in 300~1000MHz is UHF. Compared to the low-frequency signal, the high-frequency signal changes quickly and has sudden changes; the low-frequency signal changes slowly, and the waveform is smooth. This is why the THD in Low frequency is not very good for the smooth waveform. The THD of low-frequency inverter/UPS is very low compared to the high-frequency High Capacity Inverter/Heavy Duty UPS/lift inverter/Lift UPS/ERD.
Low-frequency inverters can operate at peak power levels for several seconds. This power level is up to 300% of its rated power level, while the high-frequency Inverter can use at 200% power level for a fraction of the time, which can be a game changer for the heavy-duty Inverter or high-capacity 3 Phase inverter/Heavy Duty UPS/Lift Ups/Lift inverter/ERD
2. RELIABILITY
The second main difference is reliability: low-frequency High Capacity inverters/Heavy Duty UPS/Lift Inverters/ERD operate with powerful, more reliable and robust transformers than the IGBT/MOSFETs of high-frequency inverters. The latter use electronic switches more prone to damage, especially at high power or voltage variations.
3. Isolation transformer
A major challenge is the isolation between Neutral and line which becomes a major factor of failure in High frequency based Heavy Duty Inverters/UPS/Solar hybrid PCU. The isolation is very poor in high-frequency-based inverters/UPS. In Low frequency based Inverter/UPS/Solar hybrid PCU there is an isolation trand=sformer which is very heavy in weight and keeps the isolation so that the failure is averted during the charging.
4. the Overload and short circuit
are different in low-frequency and high-frequency heavy Duty inverter/UPS/Solar Hybrid PCU as the Low-frequency Overload retries are given, Short circuit also retries are given, and Short course is kept at 300%, which is very tough to maintain in the low-frequency Inverter/UPS
5. life span
life of the low-frequency heavy Duty 3 phase Inverter/UPS/Solar hybrid PCU is very high compared to the low-frequency inverter/UPS as the switching happens at a very high frequency in the capacitors and Mosfets etc., so the life of the components is shortened. In contrast, the low frequency has a transformer, and the switching happens at a lower frequency, so the life is unlimited. I have experience with Su-kam, where we made inverters 25 years back. They have no problem and working without any faults till today because of the built-in transformers.
6. Bluetooth or Wi-Fi Heavy-duty UPS or High capacity inverter to monitor and control the Heavy Duty UPS or high capacity Inverter
Why SHOULD YOU CHOOSE A LOW-FREQUENCY INVERTER?
Low-frequency Heavy duty inverters/UPS are very successful in countries or areas where the power is unstable, with fluctuating power and long power cuts. The high-Frequency High capacity inverters/UPS are successful in countries or regions with stable management and hardly any long power cuts: low-frequency heavy capacity 3 phase inverters/UPS are good for running higher loads like Air conditioners, motors, CNC machines, etc.https://suvastika.com/high-frequency-based-inverter-ups-or-transformer-based-inverter-ups-which-one-is-better/
The increased peak performance capability and reliability of low-frequency inverters means they cost more than high-frequency inverters. If your energy consumption is small and only small appliances need to be powered or have limited space to place the Inverter, a high-frequency inverter would be better for you.
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