24 volt power inverters Car power related problems

1 . What is a power inverter ?

Power inverter ( car power ) is a solar inverters‍ way to convert the DC power DC12V and AC220V AC mains the same , for general electrical use , is a convenient power converters.

2 . Power inverter in the domestic market situation is like?

Power Inverter in foreign markets was generally welcomed. Abroad due to the higher prevalence of motor vehicles , there is no occasion when they go out in the mains work or travel to connect car battery with an inverter , electrical appliances and power tools to drive to work .

3 . Why promote this product in the country ?

After China's entry into WTO, more and more Pure sine wave power inverter‍ private buyers in the domestic market , therefore , as a DC power inverter for use in the car on the move to AC power converter will bring convenience to your life , but also the essential car owners supplies.

24 volt inverters Power Inverter Car Power called

Car power not only apply to vehicle systems , as long as there are occasions DC12V DC power supply , power inverter can be used , will convert DC12V AC220V AC, bring solar inverters‍ convenience to people's lives . Car power fully take into account the external environment , when an overload or short circuit protection will be automatically shut down. The output voltage of the power supply feedback to confirm vehicle itself can make the voltage stability, voltage variation is less than the rated load and 10V. It should be noted that the purpose of the vehicle power supply output and the same mains voltage to meet the needs of appliances , but actually the vehicle power supply output is an analog sine wave and the sine wave of the mains is true , the two slightly different , generally do not affect the use, which is the principle vehicle power supply decisions .

Select the vehicle power supply in addition to the price factor to consider is the main vehicle power requirements for the size of the input voltage and output power , in addition Car power inverters‍ to a variety of use due to the large difference in electrical power , so to select the vehicle power supply according to needs, the principle is enough used mainly.

24v inverter Car Power Profile

Power Inverter Car Power called , is a way to convert the DC power DC12V and AC220V AC mains the same , for general electrical use , is a convenient power converters , inverter 2000 watt‍ as commonly used in the automotive named.

The inverter is a way to convert the DC power DC12V and AC220V AC mains the same , for general electrical use , is a convenient power converters , as commonly used in the automotive named. 2.DC/DC DC converter power supply , which is usually the car battery 12VDC or 24VDC to 48VDC converted to direct current electrical equipment such as a car.

Car power general use car battery or cigarette lighter power supply , the first such low-voltage direct current is converted to DC 265V or so ; then is the real transformation stage , it will transform high voltage DC to AC 220V, 50Hz for . With the vehicle power supply , you can put all the family moved to the car using small appliances such as mobile phones , laptop computers, digital cameras , car refrigerators, cameras , DVD , etc., thus making the car there is a feeling of home away from home . Since its launch , many limitations of using those appliances in the solar inverters‍ car will no longer exist , people can really enjoy , " and family -friendly, connected with the world " feeling .

24 volt power inverters And supporting power inverter batteries

And supporting power inverter batteries, generally amperes (AH) as power units of measurement, such as 80AH battery in addition to electrical power is multiplied by 10 , is vehicle power inverters‍ carried by electrical power inverter can be used time .

For example , the television 100 watts

÷ 100 W × 10 = 8 hours 80 safe

6. When power inverter work surface temperatures much ? Whether there is a certain security risk ?

Power inverter at maximum power output, not higher than 70 ℃, there will not be a security risk.

7 . Protection device power inverter have?

A ) temperature protection. Surface temperature is higher than 70 ℃, automatic shut-off .

2 ) High voltage protection. The input voltage is 16V ± 0.5V

3 ) low voltage alarm . solar controller‍ The input voltage is 10.5V ± 0.5V

4 ) Low voltage protection. The input voltage is 10V ± 0.5V‍

24 volt inverters Power inverter safe

1 . What are the current power inverter models ?

Currently on the market for power inverters 3000 watt power inverters‍ have 140W, 450W, 800W, 1200W, 2000W, 3000W, 225W portable , 400W portable .

2 . How to choose the right model ?

Optional power inverter can live and work according to your purpose to choose. Eg : 140W power inverter can use a 29- inch color TV and a VCD player .

450W power inverter can be used in general power tools.

800W power inverter can be used to drive a small microwave.

3 . Power inverter using the input power can only come from the vehicle is stationary or running ? Input supply may be derived from the car running state may be a stationary state.

4 . If the car is at rest , can use the power inverter work ? Where to provide input power ?

Car in the stationary state , you can use the power inverter to work , driven by the electrical outlet can get below 150W output power directly from the cigarette lighter , use a Car power inverters‍ dedicated higher than 150W car battery cable clamps to get the power.

5. How to determine the power inverter can be used to obtain the power of the time ?‍

24v inverter Wide range of uses

Power inverter applies not only to vehicle systems , solar inverters‍ as long as there is DC12V power of the occasion, can use the power inverter will convert DC12V AC220V AC, bring convenience to your life . 5 high and low voltage alarm and shutdown role is reflected in how ? High and low voltage power inverter when the alarm on and off the red LED lights , and an alarm sounds .

Protection

Power inverter when the battery using the battery , the battery voltage drops to 9.5V, the power inverter will automatically shut down to ensure that the car can be started normally , the battery will not be damaged.

How to Protect

Power inverter is an electronic circuit by internal settings, battery protection function automatically . 8 What is the most prone to failure ? How do I exclude ? When using a power inverter , shutdown and alarm if the phenomenon , check the following:

1 ) driven by electrical power exceeds the value of the rated power of the inverter .

2 ) power inverter and battery and electrical connections are good .

3 ) Use the process down , whether the vehicle power inverters‍ temperature alarm , then a period of inactivity can continue to use .

Note that the use of battery power inverter power system voltage value, and read the instructions before using the fine .‍

24 volt power inverters Knowledge of the power inverter

Definitions

Power inverter ( car power ) is a way DC AC power inverters‍ to convert the DC power DC12V and AC220V AC mains the same , for general electrical use , is a convenient power converters.

?Market conditions

Power Inverter in foreign markets was generally welcomed. Abroad due to the higher prevalence of motor vehicles , there is no occasion when they go out in the mains work or travel to connect car battery with an inverter , electrical appliances and power tools driven by what works to promote

After China's entry into WTO, more and more private buyers in the domestic market , therefore , as a DC power inverter for use in the car on the move to AC power Off grid inverters‍ converter will bring convenience to your life , but also the essential car owners supplies.

24 volt inverters

rated output frequency of the inverter output AC voltage frequency should be a relatively stable value , usually frequency 50Hz. Under normal operating conditions the vehicle power inverters‍ deviation should be within ± 1 %.

5 , the load power factor : the ability to characterize the capacitive load inverter with inductive load or . In the sine condition, the load power factor of 0.7 to 0.9 ( hysteresis ) , the rating is 0.9 .

6, rated output current : Indicates the inverter within the specified range of the rated output power factor of the load current . Some inverter products given is rated output capacity , the unit in VA or KVA said . The rated capacity of the inverter when the output power factor of 1 ( ie, purely resistive load ) , the rated output voltage of the rated output current of the product.

7 , rated output efficiency: The efficiency of the inverter under specified operating conditions , the output power to input power ratio , in%. Inverter efficiency at rated output capacity for full load efficiency of 10% at rated output capacity efficiency at low load efficiency.

8 , Protection: over-voltage protection : Inverter thermal design‍ No voltage stabilization measures for the inverter output over-voltage protection measures due to the negative output cut from overvoltage damage.

Overcurrent protection : inverter over-current protection , should be able to ensure that a short circuit in the load current exceeds the allowable value or action from time to time , so from inrush current damage.

9 , starting characteristics : characterizing the performance of the inverter starting with a load capacity and dynamic work. The inverter should ensure reliable starting at rated load .

10 , the noise : the transformer power electronic device , the filter inductor , electromagnetic switches and other components are the fan noise is generated . Normal operation of the inverter , the noise should not exceed 80dB, small inverter noise should not exceed 65dB.‍

24v inverter Power Inverter buy points

How to choose the correct ups power inverter mainly pay attention to the following points .

1 , the rated output voltage: within a solar controller‍ predetermined fluctuation range of the input DC voltage is allowed , it means that the rated voltage of the inverter should be output . The stability of rated output voltage accuracy is generally defined as follows : In steady-state operation , the voltage fluctuation range should be a limit , such as the deviation does not exceed the rating of ± 3% or ± 5%. Under load mutations or other interfering factors affecting the dynamics of the output voltage deviation should not exceed the rating of ± 8% or ± 10%.

2 , the output voltage imbalance : Under normal operating conditions, the inverter output phase voltage unbalance ( reverse component of the ratio of positive sequence component ) should not exceed a specified value , usually expressed in% as 5 % or 8 %.

3 , the output voltage waveform distortion : When the inverter output voltage is sinusoidal , shall specify the maximum allowable waveform distortion ( or harmonic content ) . solar power inverter‍ Usually to a total distortion of the output voltage waveform that its value should not exceed 5% ( 10% single phase output enable ) .   

24 volt power inverters Solar PV inverters connected to the grid layout and safety issues

Today's solar inverter layout needs based on current sensor compact , low-cost and reliable ground current detection scheme . LEM whereby specially designed CT series sensors. Pure sine wave power inverter‍ They are rated in the range of 100mA, 200mA and 400mA different current devices provide linear output 5 volts at rated current . At 80 % and 90 % of the rated current conditions , the response time of less than 20 milliseconds and 60 milliseconds. Using high-tech design ( " flux gate " ) is the key to accurately measure small dc or ac current especially under conditions of low offset or drift ; measure DC and AC currents up to 18 kHz . CT can be mounted on a PCB, the small size, light weight, there is a through hole for passing through the phase line . Mounted on the PCB CAS / CASR / CKSR closed-loop current sensor with the same flux gate technology ; can be isolated AC and DC current measurement , they cover the range of 6 to 50Arms rated , the highest rating of three times the value of the measurement , same frequency up to 300 kHz (+ /-3dB). According to the latest requirements of the inverter design trends they were specifically designed to improve the performance of the following areas: solar inverters‍ common mode interference , temperature drift ( offset and gain ; Depending on the model , the maximum zero temperature drift of 7 to 30ppm / K), the response time ( less than 0.3 sec ) , the insulation level of the +5 volt supply and compact size .

24 volt power inverters Micro-inverter

Solar photovoltaic micro-inverter is a device to convert alternating current from a single solar module to. 

Micro inverters convert DC power from a inverter 2000 watt‍ single solar module exchanges each solar cell module and inverter with converter functions, each component can be transformed currents alone, so it is called "micro-inverter device " 

Micro-inverter enables maximum power point tracking (MPPT) at the panel level, beyond the central inverter has advantages. This can be optimized by the output power of each module, so that the overall output power is maximized. 

Furthermore, in combination with a communication function, can be used to monitor the status of each module detected a faulty module. 

Micro-inverter 

1 Based on the high efficiency isolated DC / AC converter circuit maximum output power of 210W. 

2 Suitable for 240W monocrystalline or polycrystalline silicon cells below the plate. 

3. Maximum efficiency of 96% 

4 small module size, can be integrated in the PV module junction box, junction box features traditional optimization. 

5 separate MPP tracking, so that each work independently PV module output power at the maximum point, to avoid the mismatch component parameters, factors such as uneven vehicle power inverters‍ illumination system reduces the output power. 

6 can be increased by 5 to 25 percent of the energy output of the system. 

7. Tracking accuracy of 99.5%.‍