4K = HD! 4K = expensive? The price-friendly 4K products were listed on this warm spring: At 10:00 on April 16th, JD Blu-ray player BDP-G2805 4K started in Tmall, breaking the inherent concept that 4K is certainly expensive, priced at only 699 yuan . April 16-22 during the event, photographed by 100 yuan, only 599 yuan, in addition, you can also receive a USB socket, 3 pairs of glasses. 4K is not only the price-friendly, quality, user experience must also be favored by the people! What features of the Jieke Blu-ray player BDP-G2805 4K are pro-people?
One of the most pro-people features: 4K picture quality enjoy HD
With the advent of the 4K era, people's requirements for film and television have once again been refreshed. 1080P is already the minimum standard for people's visual clarity. It is also because of the needs of everyone, 2805 4K came into being. The Jayco 2805 4K can not only output 4x HD video quality up to 4x 1080p, but it can also process the decoded video stream through a professional video processing chip for visual detail processing, making the 4K image quality sharp, delicate, and saturated in color. The degree of performance is even better, while satisfying users' demand for high-definition picture quality, bring users into the real 4K high-definition vision!
Pro-personality II: Smooth and smooth configuration
Jieke Blu-ray player BDP-G2805 4K adopts MTK8551 scheme, V1222 frequency multiplication output chip, Sony optical head, and 2G (bit) high-capacity DDR3 cache, allowing users to easily enjoy 4K picture quality while also reading side-disk cache , Enjoy HD zero-padding, let users enjoy a smoother video playback experience.
Pro-character Three: Accurate Reading Error Correction
Regardless of whether you have a collection of previous DVDs, VCDs, CDs, or popular Blu-ray discs, the Jayco Blu-ray Disc player BDP-G2805 4K can easily read and open the disc for you. With its powerful error correction capability, it can quickly process unstable analog signals into stable digital signals, and then reversely convert them to the correct analog signal output. With accurate reading, you can embark on a wonderful video journey!
Pro-characteristic four: simple and easy to use human experience
In terms of operations, the Jayco Blu-ray player BDP-G28054K is full of humanity. First, the installation is convenient and requires only two steps. Second, breakpoint continued broadcast function. In the case of power off, the Jayco 2805 4K supports automatic memory breakpoints. The next time you turn on the power, you can start playing automatically from the breakpoint. Third, smart UI, intuitive and easy to understand. The main menu interface is concise and easy to operate. Old people and children at home can easily use it.
Spring comes, close to the people 4K, you and my HD vision will be far behind? In fact, there is only one Jieke Blu-ray player BDP-G2805 4K which has close to the people! Interested friends, you can go to Tmall flagship store to see, not only the starting price is more favorable, there is a gift amount!
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Mining transformer
Mine general transformer
It is used in the mine where there is coal dust and methane but no explosion danger, for electric drive and lighting. This transformer is oil immersed. Its internal structure and working principle are the same as those of ordinary oil immersed power transformer. The main difference is the housing and the inlet and outlet devices.
The mining general transformer has a firm structure and low appearance. There is no oil conservator on the upper part of the transformer, and proper space is left on the oil level in the oil tank to prevent excessive pressure in the oil tank when the vent on the tank cover is blocked. The mechanical strength of the oil tank can withstand the pressure of 0.1 MPa without permanent deformation. The high and low voltage incoming and outgoing lines of the mining transformer are all cable junction boxes filled with insulating glue.
The capacity of mining general transformers is 50, 100, 180, 320 KVA, etc. Non excitation voltage regulation is set at the primary side of the transformer, and the voltage regulation range is ± 5%; Six terminals are led out from the secondary side coil, which can be Y/△ connected to obtain 690/400V or 1200/690V.
Mine flameproof transformer
It is used in places with explosion risk in mines. This type of transformer is mostly made of dry type, and its main structural feature is that all the joint surfaces of the box shell are made according to the requirements of explosion-proof, and can withstand the internal pressure of 0.8 MPa.
The capacity of dry-type transformer for mining is generally 4 KVA and 2.5 KVA, which are specially used to supply power for electric drill, lighting, signal and other equipment. Its incoming and outgoing lines are led out by cables through outlet sleeves. There are 380 V and 660 V voltages on the primary side; The secondary side voltage is generally 133 V.
Satons flameproof transformer with a capacity of more than 100 KVA is often combined with flameproof switch box to form a complete set of flameproof mobile substation. Its output voltages are 400V, 690V and 1200V to meet the needs of mine electrical equipment. In order to adapt to tunnel transportation, the transformer structure height should be low. In this way, the iron column diameter can be larger, and cold rolled silicon steel sheets are generally used. 100 KVA and above are usually Class H insulation.
Mining transformers,Explosion-proof transformer,Mine general transformer
Henan New Electric Power Co.,Ltd. , https://www.newelectricpower.com
