Heavy Duty Low Frequency Transformer Based  Inverters VS Lightweight High Frequency, Transformerless Inverters.

High frequency, transformerless inverter technology has existed on the market for over two decades. It was originally developed by the Chinese as a cheaper alternative to US made transformer based inverter designs. By eliminating the iron core, copper wound output transformer these Chinese engineers suceeded in reducing the weight of which in turn substatially lowered both the shipping and manufacturing cost of these inferior inverters. Unfortunately for the consumer, the removal of the output transformer resulted in a much shorter life expectancy and a far poorer surge capacity for these lightweight inverters. In addition, without an output transformer to provide galvanic isolation between ththe inverter's DC boost stage and its AC output, these inverters pose the risk of not only damaging your home's applaiances, but can even set those appliances on fire when their MOSFET transistors fail.

Low frequency, transformer based inverters on the other hand, offer a much longer life expectancy (10 to 15 years), and a much higher surge capacity (300%+) for starting those difficult to start loads such as microwave ovens, water pumps, refrigerator freezers, washers and dryers, air compressors, and air conditioning units. Additionally, because low frequency inverters do incorporate an output transformer in their design, they do provide galvanic isolation to protect your appliances from the damage that can be caused by cheap high frequency inverter designs.

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Better Performance, Reliability And Safety

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A much higher surge capacity for starting inductive loads

A far longer life expectancy in real weorld applications

Much safer operation due to its gavanically isolated design

Far easier and less costly to perform after warranty repairs

Far quieter operation and produces less radio frequency interference

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Brand Designer

Angelina H. Dekato

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