2015年3月9日星期一

3000 watt power inverters How to choose the correct ups power inverter mainly pay attention to the following points.

1, the rated output voltage: within a predetermined fluctuation range of the input DC voltage is allowed, it means that the rated voltage of the inverter should be output. Off grid inverter 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: battery power inverter When the inverter output voltage is sinusoidal, shall specify the maximum allowable waveform distortion (or harmonic content). Usually to a total distortion of the output voltage waveform that its value should not exceed 5% (10% single phase output enable). 
4, rated output frequency of the inverter output AC voltage frequency should be a relatively stable value, usually frequency 50Hz. Under normal operating conditions the deviation should be within ± 1%. 
5, the load power factor: the ability to characterize the capacitive load inverter with inductive load or. vehicle power inverters In the sine condition, the load power factor of 0.7 to 0.9 (hysteresis), the rating is 0.9. 

2015年3月6日星期五

4000 watt power inverters Power converters Introduction

Power converters are generic, that is, strip, also called strip, flapper, patch panels, etc. in Hong Kong called the drag strip. Pick up behind the patch panel in addition to our usual DC AC power inverters printed using a power converter product names, and some electrical parameters, such as maximum voltage, maximum current, and frequency. We have to follow these parameters to be used when using power converters, improper use of words, especially the use of inferior power converter when an electric shock, fire and other unsafe incidents. Early domestic power converters are state-owned enterprises in the production and promotion of the market economy, private enterprises have begun to enter Off grid inverter into the power converter industry to make power converter industry has contending scene.

2015年3月3日星期二

5000 watt power inverters Israeli standards

Israel Israel is mainly used in power converters regions, similar to the slope of the line of fire with the zero line of the flat head, the ground is flat head type, standard 5000w pure sine wave inverter electrical parameters inside Israel is the most special, voltage 220V, frequency 50Hz ' ; 
8. Australia, China Standard 
Australia and China have the same type of socket, three flat head type, voltage 220V, frequency 50Hz; 
9 Swiss standards 
Swiss three power converters hole almost a straight line parallel to the type, voltage 230V, frequency 50Hz; 
10 Danish Standard 
Danish standard power converters used in the Nordic inverter bypass switch countries, with the zero line of FireWire hole, square hole in the ground is the type, voltage 230V, frequency 50Hz; 
11 Italian standards 
Italian power converters are parallel three hole type, voltage 230V, frequency 50Hz; Chinese New GB Power Converters (10) 
12 South Africa Standard 
South Africa's power converter with FireWire zero DC AC power inverters line and the ground for the type of hole square hole, voltage 220V/230V, frequency of 50Hz.