电气-绝缘子

What is rectifier module? A  rectifier module  is an electronic device that converts alternating current (AC), which periodically changes direction, into direct current (DC), which flows in only one direction. There are several types of rectifiers, including half-wave rectifiers, full-wave rectifiers, and bridge rectifiers. Half-wave rectifiers only allow one half of the AC waveform to pass through, while full-wave rectifiers allow both halves of the AC waveform to pass through, but in opposite directions. Bridge rectifiers consist of four diodes arranged in a bridge configuration, which allows them to rectify AC voltage from either direction. Rectifiers are used in a variety of applications, including power supplies for electronic devices, battery chargers, and DC motor drives. They are also used in power transmission and distribution systems to convert high-voltage AC power into lower-voltage DC power for use in homes and businesses. Application of rectifier module Rect...

TFT type display is currently the better LCD color display,   TFT type display   has many advantages: high response, high brightness, high contrast ratio, etc. TFT display is closest to CRT display. TFT screen is also often found on the screen of major cell phones, there are 65536 colors, 160,000 colors, 16 million colors, it is also very good display. TFT means that the LCD on the Each LCD pixel is driven by a thin-film transistor integrated behind it. This allows for high speed, high brightness, and high contrast display screen information. TFT-LCD (thin film transistor liquid crystal display) is one of most liquid crystal displays. Liquid crystal display (LCD) . the structure of LCD is placed in the middle of two parallel glass liquid crystal box, the substrate glass is set on the TFT (thin film transistor), the color filter substrate glass is set in, to the TFT signal, the voltage changes to control the direction of rotation of the liquid crystal molecules, so as to a...

  Features of Ni-Cd batteries Nickel cadmium (Ni-Cd or “nicad”) batteries were invented way back in 1899 by a Swede named Waldemar Jungner. At that time, porous electrodes housed nickel, which was crafted into pockets for a nickel cadmium mixture to sit in and conduct electricity through.  After decades of research and experimentation, smart people found out that the more surface area inside a battery, the better for stronger electric currents.  Therefore,  Ni-Cd batteries  now resemble a “jelly-roll” inside, with porous anode and cathode plates sandwiching a separator and rolled up into a tasty charge with maximum power output. At either end of an  Ni-Cd battery  is an electrode, the point at which electricity goes in and leaves. Ni-Cd batteries use an active material called nickel hydroxide at the positive terminal and metallic cadmium at the negative terminal. Inside is a liquid alkaline electrolyte solution, usually potassium hydroxide. Cadmium is ...

  1. What is the OPGW Cable?   OPGW cable, also known as optical fiber composite overhead ground wire. The optical fiber is placed in the ground wire of the overhead high voltage transmission line to form the optical fiber communication network on the transmission line. This structure has both ground wire and communication functions, which is generally called OPGW optical cable.   Spiral Vibration Damper   2. What is the ADSS Cable?   ADSS cable, also known as the medium messenger cable, is a kind of composed of medium material, its all contain the necessary support systems, can be directly hung on the electric power poles of non-metallic fiber optic cable, it is mainly used for overhead high voltage transmission system of the communication line, can also be used for lightning areas, large span and other overhead laying under the environment of communication lines.   Parts of ADSS Accessories Some of the main parts of  ADSS accessories  include th...

Emergency lighting  is the lighting that automatically comes on when the power supply of normal lighting equipment fails, divided into emergency escape lighting and backup lighting. Emergency Lighting Standard Regulations Clearly and unambiguously indicate escape routes. Provide illumination along such routes to allow safe access to and through the exits provided. Ensure that fire alarm call points and firefighting equipment provided along escape routes are easily located. Lighting controls must be provided to allow emergency exit lights to be turned on in the event of loss of normal power. Depending on the requirements of the new building, lighting controls must be activated by the building fire alarm system if a fire alarm panel is provided. Lighting controls shall not turn off any lighting upon which the photoluminescent signage relies. Lighting control devices must also not turn off any lights that are powered by batteries. Overall, when using energy-efficient nodes, clocks, an...