1,Q:Why your quotation is higher than other suppliers? A:In
domestic market, the high and low inverter brands are mixed
together. There are many low-cost inverter is actually some
assembled small unlicensed workshops, it crudely, to reduce costs
and use of substandard components for assembly, there is a very big
security risk! In order to protect the pro personal and property
safety, please do not covet low price, be sure to choose a reliable
inverter!
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2,Q:How many categories does it have according to the output
waveform ? A:Type one: Modified Sine Wave inverter, which uses PWM
pulse width modulation to generate modified sine wave. Due to the
usage of intelligent dedicated circuit and high power field effect
tube, it greatly reduces the power loss and increases the
soft-start function, effectively ensuring the reliability of the
inverter. If the power quality is not highly demanded, it is able
to meet the needs of most electrical equipment. But it still exists
20% harmonic distortion problems when running sophisticated
equipment, can also cause high-frequency interference to radio
communications equipment. This kind of inverter can meet the basic
needs of most of our power, high efficiency, small noise, moderate
price, and thus become the mainstream products in the market. Type
two: Pure Sine Wave inverter, which adopts isolated coupling
circuit design, high efficiency, high stability of the output
waveform, high-frequency technology, small in size, suitable for
all kinds of load, can be connected to any common electrical
devices and inductive load devices (such as refrigerators, electric
drill, etc.) without any interference (eg: buzz andTV noise). The
output of pure sine wave inverter is the same as the grid tie power
we daily used, or even better, because it does not exist grid tie
electromagnetic pollution.
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3,Q:Is the output voltage of our inverter stable ? A:Absolutely.
Our inverter is designed with a good regulator circuit. You can
even check it when measuring the true value by a multimeter.
Actually the output voltage is quite stable. Here we need make a
especial explanation : many customers found it is unstable when
using conventional multimeter to measure voltage. We can say the
operation is incorrect. Ordinary multimeter can only test pure sine
waveform and calculate datas.
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4,Q:What is a resistive load appliances? A:Generally speaking,
appliances like mobile phones, computers, LCD TVs, incandescents,
electric fans, video broadcast, small printers, electric mahjong
machines, rice cookers etc. All belong to resistive loads. Our
modified sine wave inverters can drive them successfully.
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5,Q:What is the inductive load appliances? A:It refers to the
application of electromagnetic induction’s principle, produced by
high-power electrical products, such as motor type, compressors,
relays, fluorescent lamps, electric stove, refrigerator, air
conditioner, energy saving lamps, pumps, etc. These products’power
are far more than the rated power (about 3-7 times) when start. So
only pure sine wave inverter is available to them.
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6,Q:What should be noticed when installing inverter? A:Put the
product in a place where is well ventilate,cool, dry and
water-proof. Pls do not stress and do not put foreign objects into
the inverter.Rember to turn on the inverter before turn on the
appliance.
