In the ship's high-power rectifier, the working current of the rectifier element is used as bridge rectification. The forward average current passing through each bridge arm rectifier element. Under normal circumstances, the forward average current of the rectifier element should be 152 times the actual working current In this way, a rectifier element with a forward average current of 300A can be selected.
However, considering the harsh environment of the ship, the forward current of the component should be derated to ensure its reliability. Therefore, the forward average current of the element is selected as 500A. Considering that an abnormal overvoltage may occur on the secondary side of the transformer, the reverse repetitive peak voltage of the rectifying element is selected as 1200V.
Rectifier components are available in two forms: thyristor and rectifier diode, each with its own advantages and disadvantages. The output voltage of the former is adjustable, which is conducive to ensuring the stability of the DC output voltage, but lacks the experience of using it on board. The latter is mature and reliable, but it is not adjustable. The output DC voltage fluctuates with the fluctuation of the electrical insulation ladder on the AC side ship.
The DC power of the load is provided by the undisturbed switching of the rectifier and battery pack. When the voltage fluctuation of the rectifier is large or even lower than 24V (the fluctuation of the ship's electricity is basically a voltage drop), the battery pack is automatically turned on, which will not affect the reliability of the power supply. Therefore, the rectifier element selects a rectifier diode. You can choose ZP50012, 500A, 1200V rectifier diode. The radiator is made of aluminum profile structure, and the rectifier components are manufactured according to the standards of military products.
The Zipper Earphone is a zippered earphone, belonging to electronic products, including zipper earphone wire, earplugs and plugs, mainly solving the problem that ordinary earphone wires are easily entangled with each other. The earphone cable has a zipper. When the earphone is idle, the earphone cable can be zippered and used to avoid messy and easy to organize the earphone cable. The length of the earphone cable can be adjusted freely during use, and the earphone cable can be restored after being separated. It is very convenient to use in the merged state.
According to the way of changing the earplugs of the Zipper Earphones, there are mainly moving coils and moving irons, and electrostatic and equal magnetic earplugs are relatively few. In terms of wearing form, it is mainly used on the in-ear type and ear-hook type, and the headband type is relatively small. From the earphone wire material, it includes Metal Zipper Earphones, injection zipper earphones, nylon zipper earphones and so on.
Zipper Earphones
Zipper Earphone,Zipper Headphones,Zip Type Earphones,Pink Zip Earphones
Shenzhen Linx Technology Co., Ltd. , https://www.linxheadphone.com