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Technology Center
What is the Power Inverters (3)?
Updated: 2013-12-10 01:34:55     (GOBRIGHT NEWS DEPT)

10. What should you do if you want to use inverter for a long time but don't want to use engine?
you should prepare another piece of battery with same voltage,connect the inverter with the original car's battery. In this way, the inverter can be used independently for a long time.

11. What’s the dangerous when using the inverter?
The inerter carries a very large current from the car battery to inverter input section .If the wire quality is poor , too small or overload, which will lead to the copper wire become heat, or even a fire. Therefore, the use of inverter must be strictly accordance with the user's manual.

12. How do you know the capacity of battery?
There are many letters and numbers on the battery, as long as find XXAH you can know the capacity of the battery. AH means amperes (amp.), H means hour. Putting two letters together means "amp hours”, in other words, how many amp current can output within an hour. XX is usually use two figures that mean the amount of amps. For example, 45AH means the battery can output (12V)45 amps current in an hour, As for this battery output power, we can use 12 volts times 45 amps equals 540 watts , which is the output power of the battery (theoretical value).

13. What types of battery does the car generally use?
Generally, the cylinder volume of 1.3 liters for the small car is equipped with a 40-50 ampere-hour battery,1.6-2.0-liter medium car with an 50-60 ampere-hour battery, more than 2.2 liters of medium and large car with 60-80 ampere-hour battery. Off-road vehicles, utility vehicles equipped with the battery, its capacity is generally larger than the car with the same engine. The car use 12V battery, the diesel engine vehicles (including trucks) usually use 24V, but a few still use 12-volt batteries (such as Iveco).

14. How to choose suitable battery for the inverter?
If the specifications of the battery is 12V 50A, we can use a 12V times 50A equals 600W. If the efficiency of the inverter is 90%, we should use 90% times 600W equals 540W.This means that your battery can carry a maximum output power of 540 watts inverter. Or you can adopt a "one-step" purchase method, don’t consider your car's battery specification, and buy an 800W output power inverter. Then, use it within the permissible scope of the battery. When you change a larger car you can use it with full power. Finally, if you are not ask for too much about the power of the inverter, you can choose a low-power inverter, such as 100W. In addition, there are an important principle when you choose the inverter power, don’t run it fully for a long time, otherwise it will shorten the life of the inverter and increase its malfunction rate .We strongly recommend that when you use the inverter cannot exceed its 85% rated power.

15. What should be consider when you use the inverter?
First of all, the use of inverter must be strictly accordance with the user's manual .Secondly, the inverter output voltage is 220V AC, which is in a small space and a movable state, you should be careful. In case of against electric shock, you should put the inverter in a safe place (stay away from children!).Please cut off the power supply when you not use it. Third, the inverter should not be placed in the sun or near the heaters exit. Inverter working environment temperature should not exceed 40℃. Fourth, the inverter will be hot work, so do not place things near or above it. Fifth, the inverter fear water, do not get wet or sprinkled water.

16. Why use ordinary multimeter measuring the quasi-sine wave inverter AC output, its voltage is lower than 220V?
This is normal because the measurement of quasi-sinusoidal AC voltage should be use the universal electric meter with 'True RMS' file in order to obtain the correct readings.

17. How to choose the inverter?
Car power inverter is a power supply product which works in a high-current, high frequency environment, its potential malfunction rate is very high. Therefore, consumers purchase the inverter must be careful. First, selection must according to the inverter output waveform ,it would be well not to lower than the quasi-sine wave; Secondly, the inverter should have circuit protection function; Third, manufacturers have a good after-sales service commitments; Fourth, the circuit and products should be tested for a period of time.

18. What's the difference between the inverter and transformer?
An inverter has direct difference from the transformers. It is can achieve the DC input, but AC output .Its working principle is same as the switching power supply, but the frequency of shocks in a certain range. For example, if the frequency of the inverter is 50HZ, its output AC is 50HZ. Inverter can change the frequency of the equipment.

Transformers generally refer to a specific frequency band of the equipment, such as power frequency transformer, we usually see those transformers, their input and output must be within a certain range, such as some transformers can work only within 40-60HZ .
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