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目前显示的是 十一月, 2022的博文

Rotary lobe pump working principle and structure - Bonvepumps.com

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  What is a rotary lobe pump? How rotary lobe pumps work? Rotary lobe pumps parts Lobes types and why different need? Construction material of lobe pumps Configuration Options of lobe pumps What is a rotary lobe pump? Rotary Lobe Pumps  are positive displacement pumps able to transferring liquids products,especially for high viscosity, high solidand arefeatured aslow shearing. Gentletransferringmakes them popularused in food, cosmetics and industrial chemicalproducers. No damage to the pumped products. How rotary lobe pumps work? Rotary lobe pump working principle is easy to understand. They basically consist of two lobe rotors, which rotate synchronously driven by a pair of synchronous gears in the gearbox. The rotors are driven by the main shaft and sub-shaft to rotate in a synchronous reverse direction, which changes the pump capacity, builds up high vacuum and discharge pressure, thus an efficient pumping is formed. Parts of rotary lobe pumps The main parts are including rotors, pu

Billiards Pool Table and Rail Brush Set - Dasionbrush.com

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  Hello, Everyone We have a new product released today --- Billiards Pool Table and Rail Brush Set . What this product kit have ? What are their application ?How can we order in ? 1.What this product kit have ? l  Rail Brush :It works well to keep billiards pool table clean will not harm the surface of the pool table,the dust in every small corner can be brushed very cleanly l  Billiard Cue Chalk :Greatly increase friction used for more accurate shots,allowing you to match the chalk to the felt of your billiard table which diminishes chalk marks,and the quantity of 12 is enough to use for a long time l  Cue Tip Replacements :Compatible with 12mm and 13mm cue tips,no glue or tools required,help keep and improve a strike effect, control the direction of the billiard as possible, exert and improve your strength 2.What are their application ? Pool and billiard accessories are suitable for playing games, competitions or championships, serving for a long time, bringing a fluent use experienc

Why do AC DC Adaptor gets hot?

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  Many applications run on  AC DC Adapter . The alternating current(AC) to directing current(DC) adapter that plugs into the wall to run your home printer or electric blanket may be warm to the touch. But If its excessively hot, that usually takes trouble. An AC DC adaptor is a full-sized plastic box that plugs into a household electric outlet. A cable connected to the dc adapter carries safe low-voltage DC. A round barrel power connector at the cable's end plugs into your device. Regulator Inside the AC adapter, a circuit called a regulator keeps the DC voltage steady. Normally, it becomes moderately warm. Overload If your device is working hard, it gets more power from the dc adaptor. The external adapter will get warmer. If overloaded use, it may become hot. Malfunction A problem in the switching adapter's circuits may cause it to run abnormally hot. If it becomes painfully hot to touch, grip it with a dry rag and remove it from the wall outlet. Substitution The voltage, pol

What is Class I and Class II Protection?

  KSPOWER   has been specializing in   power adapters ,   chargers , and LED power supplies for 13 years, and has rich experience in production and research and development. We can accept customized products and provide a variety of power supply styles for selection. Therefore, when choosing different power supply specifications, customers will have a choice between Class I and Class II power supplies. Class I mean that the equipment where protection against electric shock is achieved by using basic insulation and also providing a means of connecting to the protective ground conductor in the building where by routing those conductive parts that are otherwise capable of assuming hazardous voltages to earth ground if the basic insulation fails. All Class I power supplies must have safety ground brought to an electrically conductive chassis in the power supply. Class II mean that the equipment in which protection against electric shock does not rely on basic insulation only, but in which

What are Class P LED driver and why should you choose it?

  KSPOWER   has launched the N / H / L series waterproof dimmable LED drivers from 2019, in order to give customers a more flexible and time-saving way to avoid recertification and retesting, KS POWER also acquired a series of safety regulation certifications UL/cUL 8750, ENEC GS (IEC/EN 61347), Class 2, Class P, CE, SELV... Luminaire manufacturers can cut costs, enhance their speed to market, and simply alter their product lines as a result of this. You may wonder what are Class P LED drivers and why should you choose them? The Class P program was created by UL (Underwriters Laboratories) launched in January 2016 with the goal of better supporting luminaire makers by allowing freedom of substitution for LED drivers without having to recertify their products. It`s a program that establishes guidelines for evaluating and testing standardized LED driver constructions and ratings. The Class P program is a UL-listed program. UL listing indicates that UL (Underwriters Laboratories) has test

What's ELV,MLV,Triac Dimming mean?

  Dimmers   change the shape of the AC wave by chopping off part of it. This reduces the power available to the LED bulb light, which becomes less bright. The terminology about dimmers can be confusing, such as ELV dimmer, MLV dimmer or Triac dimmer... What does Triac dimmer mean? The key electronic component in a dimmer that makes wave-chopping possible is called a "triac". So all these type of dimmers are "triac dimmers". What`s Leading Edge dimming and Trailing Edge dimming? When chopping a sine wave, you can chop the beginning of the wave, or the end of the wave. In both cases you achieve dimming by reducing the outgoing power. The more you chop, the dimmer the light. So if the triac chops the beginning of the sine wave, it`s "Leading Edge" dimming. And guess what it`s called if you chop the end of the wave? Correct! "Trailing Edge". What`s Forward Phase dimming and Reverse Phase dimming? Forward Phase is another term for Leading Edge dimming

Which models of KSPOWER meet the Level VI energy efficiency?

  In February 2016, the U.S. Department of Energy (DoE) enacted energy efficiency regulations that require external power supply to meet Energy Efficiency Level VI. To meet the current average efficiency and no-load power requirements mandated by the US Department of Energy (DoE) under the Level VI standard and it also conforms to the trend of green, environmental protection and energy conservation, the new generation Level VI desktop power supply KSDU-60 VI series and KSDU-70 VI series, has received positive feedback from America and Europe market since it was firstly announced in 2016. In order to further fulfill the application demands for the lower out wattage and higher wattage, Soon after   KSPOWER  is pleased to launch the new   wall mounted power supply  KSDU-12C/ 24C/ 36C/60C VI series and desktop type power supply KSDU-12/24/36/84/100/150 VI series. Level VI series power adaptors follows the features of Level V, accepting 90~264VAC full range input, providing the output power

What is NEMA and NEMA Ratings?

  The acronym “NEMA” stands for the National Electrical Manufacturers Association. Founded in 1926, the NEMA formed out of the merger of the Associated Manufacturers of Electrical Supplies and the Electrical Powers Club. During that time, electronics had just starting to become prevalent, and industry leaders noted the need for required standards to which electronics manufacturers must all adhere. Not only did NEMA form to monitor the quality and safety of electronics products, but they also wanted create simple processes to ensure compatibility between different devices. The regulation organization also monitors conditions where moisture is an issue, such as times when electronics are outdoors, or if there are other risk factors involved. That NEMA also rates the level of protection against deteriorating factors such as corrosion, gasket aging and construction practices that breach designated environmental conditions. Any facility that works with electronics benefits from NEMA’s ratin

KSPOWER Power Adapter Plug - keysuntech.com

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  AC power cord plugs and sockets connect electric equipment to the alternating current (AC) mains electricity DC power supply in buildings and at other sites. Electrical AC plugs and sockets differ from one another in voltage and current rating, shape, size, and connector type. Different standard systems of plugs and sockets are used around the world. AC plug is the movable or fixed connector attached to an switching power supply. KSPOWER’s  ac dc adapter  features universal ac input 100-240v, accept various AC plugs for different countries choose. Some plugs have female contacts that are used only for an earth ground connection. Some plugs have built-in fuses for safety. The assigned IEC appliance class is governed by the requirement for earthing or equivalent protection. Class I power units requires an earth wire in the plug and socket, while Class II power units is unearthed and protects the user with double insulation. KSPOWER’s  desktop power adapter  is designed of three standar

How to Choose the Correct Power Supply for the End Systems-keysuntech.com

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  Constant voltage power adapter  converts the main power AC 100-240V AC into a smaller usually DC voltage that your end device needs to operate. Usually these are required for charging or powering operated devices. When you purchase, the best way is to check if your device has a specific power adapter already available. If you can not find one then you can find out what your device needs to operate, so inspect the device and look for any labels that indicate either the voltage or mAh/A. Choosing the right power adaptor specs to make sure you check the following: The power supply output voltage matched the rated input voltage of the device. VAC or VDC. The power supply output is greater or equal to the devices rated mAh or A. The plug fits into your device and has the correct polarity. The most common is center positive(+)connectors; also have the less popular center negative(-) connector. Voltage carries the power and the Amps are the measurement of how much power it consumes, the bas

What is the difference between 0-10v and 1-10v dimming-keysuntech.com

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  0/1-10V Dimming Principle The  dimmable driver  is designed with a control chip, when a 0-10V or 1-10V dimmer is connected, the output current of the led driver can be changed through the 0/1-10V voltage change. The Features of 0-10V and 1-10V 0/1-10V dimming driver  is a low voltage analog signal dimming mode, which is controlled by the dimmer changing the voltage of 0-10V to control the led driver’s output current. When the 0/1-10V dimmer is turned up to the maximum, the lamp will output full brightness. When the 0-10V dimmer modulates to 0, the lamp turns off the output. The dimming difference between 0-10V and 1-10V: dimmer and the signal turn-off voltage. When the 0-10V dimmer is set to 0.3V-0.7V, the light is turned off, and when the 1-10V dimmer is set to 1-1.2V, the lamp is turned off. The dimming performance, dimmer distance are related to the number of led drivers and environmental interference. Too many led drivers and too long signal lines will cause problems such as not

UL Certification Introduction - www.keysuntech.com

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  What is UL Certification? UL Listed vs UL Recognized? UL is a safety organization that sets industry-wide standards on new products. They continually check these products to ensure they’re up to these standards. UL testing makes sure that wire sizes are correct or devices can handle the amount of current they claim to be able to. They also ensure that products are constructed correctly for the highest safety. The biggest difference between UL recognition and UL certified or classified is that it does not apply a seal of approval to end products. UL Listed: Put simply, Listed products means stand-alone products with a specific function, tested against UL's published and nationally-recognized standards for safety for a specific category of equipment. Products that carry the UL Listed"approval label above mean that the product has been tested by UL to nationally recognized Safety standards and has been found to be free from reasonably foreseeable risk of fire, electric shock an