Power Inverter DC11-15V AC100-120V, AC220-240V

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1. Product Description:

Drive Variable-frequency (VFD) is the application of frequency conversion technology and microelectronics technology, by changing the motor power frequency mode to control AC motor power control equipment. Inverter is mainly composed of rectifier (AC inverter), filter, inverter (DC AC), brake unit, driving unit, detection unit, and so on. The inverter by the internal IGBT to adjust the output voltage and frequency, according to the actual needs of the motor to provide the power supply voltage, and then to achieve energy saving, speed control purposes, in addition, there are a lot of converter protection functions, such as over current, over voltage, overload protection, etc.. With the continuous improvement of the degree of industrial automation, frequency converter has been widely used.


2. Product Characteristic:

1 Frequency conversion energy saving. Motor use frequency converter is to speed, and reduce the starting current.

2 Power factor compensation energy saving. No power will not only increase the power loss and equipment of fever, more important is power factor lower leads to a decrease in power grid

3 Soft start energy saving. After the use of frequency conversion energy saving device, the use of inverter soft start function will enable the starting current from zero, the maximum value is not more than the rated current, reducing the impact on the grid and the power supply capacity of the requirements, and extend the service life of the valve. Save the maintenance cost of equipment




Input voltage

DC 12V (DC11-15V)

Output voltage

AC100-120V, AC220-240V

Continuous power








Peak power








Output frequency

60+/-3Hz, 50+/-3Hz

Output waveform

Modified sine wave

NO load current draw


Low voltage alarm activation


Under voltage shutdown


4. Reference Picture:

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Q:220 kv transformer capacity range,
GB GB / T6451 made a detailed provision, the latest version of the 2008 revision. (Boost, buck), three laps without load (boost, buck), autotransformed (boost, buck), the two-lane, There are several types of auto-load (boost, buck) and so on, there are about 31.5,40,50,63,90,120,150,180,240,370,400 MVA several grades, but corresponding to different types of transformers, Capacity level is slightly different, do not know what type of capacity you ask the range?
Q:New on the transformer reported to stop, how to do,
First, if it is the implementation of non-industrial nature of electricity, there is no need to apply for stop procedures, directly out of the transformer on it.
Q:Transformer insulation level L175 AC35 / 5 What does it mean
The voltage withstand voltage is 480kV, the power frequency withstand voltage is 200kV, the middle voltage side of the neutral point of the lightning impulse withstand voltage is 250kV, power frequency withstand voltage is 95kV; low side of the terminal side of the lightning Impact withstand voltage is 75kV, power frequency withstand voltage is 35kV; 3, "LI 75 AC 35" means that the 10kV transformer high voltage winding lead side of the lightning impulse withstand voltage is 75kV, power frequency withstand voltage is 35kV.
Q:What are the serious consequences of transformer circulation?
Two parallel transformer transformer ratio is not equal, the two transformers due to the same phase between the phase difference generated by the circulation, the size of the flow of two transformers to determine the size of the difference, according to the magnetic potential balance, although the two transformers Side of the same power supply, but due to the secondary side of the pressure cycle, two transformers will also produce a circulation at the same time.
Q:Transformer if the boost and buck current will change?
Completely correct transformer output power = input power x efficiency, However, this refers to the rated voltage and rated current The actual output current of the transformer is determined by the load.
Q:How the transformer is transformer
Transformer (Transformer) is the use of electromagnetic induction to change the principle of AC voltage. Transformer consists of iron core (or core) and coil, the coil has two or more than the winding, which connected to the power supply winding called the primary coil, the rest of the winding called secondary coil. It can transform AC voltage, current and impedance. The simplest core transformer consists of a core made of soft magnetic material and a coil of two turns on the core, as shown in the figure.
Q:How much capacity the transformer has
For power transformers, there are 10 20 30 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300, etc. kVA.
Q:Where is the transformer used?
Transformers are suitable for applications where the voltage level is to be changed Need to change the impedance to match the front and rear impedance of the occasion It is necessary to increase the current supply as a booster
Q:Transformer winding maximum temperature at?
National standard (oil-immersed transformer) the top of the oil temperature is generally adjusted at 85 ℃, if more than 85 ℃, to analyze the reasons: 1, if it is because the room temperature is too high, heavy load and other slowly rising, you can continue to run more than 85 ℃, but The maximum temperature can not exceed 95 ℃ (when the transformer core core or winding is 105 ℃, will seriously damage the insulation, shorten the life or burn the transformer); 2, the transformer running at 85 ℃, the transformer oil temperature and room temperature difference can not exceed 55 ℃, if it is over, may be a serious overload, the voltage is too low, the current is too large, internal failure, etc., continue to run will seriously damage the insulation, shorten the life or burn the transformer.
Q:What are the ways of protecting the transformer?
Transformer protection is commonly used to protect the internal fault of the main protection of gas and differential. Backup protection is quick and overcurrent. There are semi-insulating structure of the neutral point over-voltage protection (arrester), oil temperature alarm.

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