The rectifying current of the selenium sheet generally needs to determine the rectifying current of the selenium according to the size of the selenium sheet. Under normal circumstances
When the area of ​​the selenium is 23*23mm, the rectified current of 150 mA can be allowed to pass; when the area of ​​the selenium is 40*40mm, 600
The mA of rectified current can be allowed to pass. If the selenium is used in parallel, the rectified current can be allowed to increase.
In this case, the increase in the rectified current does not require an increase in the area of ​​the selenium.
In general, the pressure resistance of the selenium sheet is 18 volts per piece, one side of the glossy surface without the frame is the positive electrode, and one side of the negative electrode is the framed one.
The matte side, this positive and negative poles need to be carefully distinguished and connected when used, and cannot be reversed. To increase the pressure resistance of the selenium, I
We can connect the selenium in parallel. Here we can simply do the demonstration. We know that the pressure value of each selenium is 18 Ford.
When the two selenium sheets are connected in series, the pressure value of the entire selenium sheet is 36 volts, which is a multiple of 18 volts of a selenium sheet.
When the four pieces of selenium are used, the pressure value of the selenium piece is 72 volts.
Selenium also has its own unique characteristics, such as the overload capacity is very strong, in some cases, if the selenium is penetrated, the selenium itself
It can be self-healing, because of these characteristics, selenium is widely used in our production and life. Http://
According to the different characteristics of the handle, lid, bottom, shape and other parts of the teapot, there are more than 200 basic types of teapots.
According to the shape of the handle:
Side lift pot: The handle is ear shaped, opposite the spout.
Handle pot: The handle of the pot is in a rainbow shape above the lid.
Flying Pot: The handle of the pot is above one side of the pot, flying in a colorful ribbon.
Handle pot: The handle of the pot is like a handle, at a right angle to the body of the pot.
No handle pot: no handle, hold the head of the pot to pour tea.
Tea Pots,Vintage Tea Pots,Small Teapots,Animal Teapots
The universe in the stone is great , https://www.zdsarts.com