Dual USB 1500 W Car Inverter DC 12 V To AC 220 Charger Converter Protable Vehicle Power Over-voltage protection Supply Switch | Автомобили

Peak 1500W Modified Sine Wave Inverter DC 12V to AC220V 50HZ / 60HZ OFF Grid Inverter for Solar System 2 USB port   Description:   Material: Aluminum Alloy Maximum output: 1500W Continuous output: 700W Input voltage: DC 12V Waveform: Modified Sine Wave Cooling fan: with USB interface: 2 USB output: 5V 2.1A Socket:1 Specifications:220V   Five major protections: 1, Undervoltage protection Function: Undervoltage protection, automatic protection when the function input voltage is too low Status: first alarm, voltage continues to decrease LED red light and turn off 2, Over temperature protection Function: Automatic protection at high temperatures Status: first alarm, the temperature continues to increase LED red light and turn off 3, Overvoltage protection Function: prevent the input voltage from being too high and burn out the inverter Status: LED red light, the product automatically shuts down 4, Short circuit protection Power: Automatically protected when a product short circuit is found Status: LED red light 5, Overload protection Function: Automatic protection when the load power is too large Status: LED red light, the product automatically shuts down   Features:   1. High conversion efficiency and fast startup; 2. Good safety performance: The product has five kinds of protection functions: short circuit, overload, over/under voltage and over temperature; 3. Good physical properties: The product adopts all-aluminum shell, good heat dissipation performance, hard oxidized sandblasting on the surface, good anti-friction performance, and can resist extrusion or impact of certain external force; 4. With load adaptability and stability   Packing list: 1X Inverter 2X Battery clip 1X Car charger connection 1X Instructions in English Question and Answer:   1. What is a resistive load electrical appliance?   The load that generally works through the resistance type element is called the resistive load. Such as: TV, incandescent lamp, small printer, drinking fountain, rice cooker, electric blanket, electric cup. In fact, almost all appliances that work by heating are resistive load appliances.   2. What is the inductive load electrical appliance?   Refers to the application of electromagnetic induction principle of the production of high-power electrical products, such as: motors, compressors, air conditioners, refrigerators, washing machines, range hoods, pumps, air compressors, vacuum cleaners, microwave ovens. This type of product requires a much higher starting current (approximately 3-7 times) than the current required to maintain normal operation when it is restarted. For example, a refrigerator that consumes about 150W in normal operation may have a starting power of more than 1000W. In addition, since the inductive load is connected to the power supply or disconnected from the power supply for a moment, a back-EMF voltage is generated. The peak value of this voltage is much greater than the voltage value that can be endured by the on-vehicle AC power supply, and it is easy to cause the inverter to become instantaneous. Overloading affects the life of the inverter. Therefore, the requirements for the power supply waveform of such appliances are high, and it is better to use a pure sine wave inverter.   3. What is a capacitive load?   Loads with load capacitance parameters, that is, loads that meet current characteristics after voltage are generally referred to as capacitive loads. Such as washing machines   4. What is the conversion efficiency of the inverter?   When the inverter is working, it also consumes a part of its own power. Therefore, its input power is greater than its output power. The efficiency of the inverter is the ratio of input power to output power. If an inverter inputs 100 watts of direct current and outputs 90 watts of current, then his efficiency is 90%.   5. What is the continuous output power? What is the peak output power?   Some electric appliances or tools that use electric motors, such as refrigerators, washing machines, and electric drills, require a large amount of current to drive at the instant of startup. Once successful, only a small current is needed to maintain their normal operation. Therefore, for the inverter, there is the concept of continuous output power and peak power. The continuous output power is the rated output power; the average inverter peak output power is twice the rated output power. It must be emphasized that some appliances, such as air conditioners and refrigerators, have a start-up current equivalent to 3-7 times the normal operating current. Therefore, only the inverter that can meet the peak power of the electrical appliance can work normally.   6. Can I use a car inverter with the car engine off?   can. In the use of low-power appliances below 300W, the average car battery can provide 30-60 minutes of power with the engine off. If only one laptop with a power consumption of 60W is used, the usage time is much longer. We have an undervoltage warning and undervoltage protection circuit in our inverter. When the battery is used for a long time and the voltage drops to 10V, the undervoltage protection is activated and the output voltage is cut off and alarmed to prevent the battery from being too low to be able to protect the battery. Start the engine. Therefore, the user can safely use the inverter while the engine is off.   7. What is the danger of using an inverter?   This section of wire from the battery to the input of the inverter carries a very large current. If the wire is too thin, or the wire is too thin or the load exceeds the standard, the copper wire will heat up and eventually catch fire, causing serious accidents. Therefore, during the use of the inverter, it must be operated in strict accordance with the user manual.   8. How to fit the battery with a suitable inverter?   If the specification of the battery is 12V 50AH, we use 12V*50AH and the output power of the battery is 600W. If the efficiency of the inverter is 90%, then 90%*600W=540W, that is, this battery can drive an inverter with an output power of up to 540W.   How long can the inverter work?   The use time depends on the battery capacity, this can use the formula to calculate the use time   Formula: working time = voltage * battery capacity * 0.8 * 0.9 / electrical power   For example: a 12V60AH battery drives a 200V100W device   Working time = 12V*60AH*0.8*0.9/100W=5.184 (hours)   Note: 0.8 is the battery discharge capacity, and 0.9 is the inverter conversion efficiency. The specific use time is related to the old and new performance of the battery.