What is the main structure of the sensor iron core? How to perform related maintenance?
2022-08-26
Sensor core What is the main structure of the sensor core? The sensor core consists of a core body, magnets, and related electrical steel sheets. During the purchasing process, you should understand these components and their quality. Do not choose cheap products to reduce production efficiency.
The sensor core is the main component of the sensor magnetic circuit. It is usually made of high-silicon content hot-rolled or cold-rolled silicon steel sheets and coated with insulating paint. Together with the coil wound around it, it forms a complete electromagnetic induction system. The transmission power of the sensor depends on the material and cross-sectional area of the core.
The following are some of the failures and repair processes of the sensor core:
1. When the insulation of the upper yoke plates is aged, and other parts of the core are normal, only the upper yoke laminations need to be removed for paint removal and repainting; other parts do not need to be moved.
2. The sensor insulation tube is broken due to the heart bolt, causing a local short circuit of the iron sheet, resulting in a local short circuit between the sensor cores. During inspection, remove the upper yoke, remove the faulty phase winding, and remove the broken core bolt of the insulation tube.
If the short circuit is not extensive or deep, use a special scraper to remove the stuck burrs and then repaint. Take this opportunity to remove all the core column bolts on the core column, and then use a weftless belt to tighten them instead of using the core column bolts. However, it should be noted that the weftless belt binding hoop should not be too thick to affect the winding of the sleeve. The thickness of the weftless binding hoop for distribution sensors is generally 1-2mm. If necessary, more binding hoops can be added to reduce the thickness of the binding hoops. If the short-circuited laminations are severely burned, deep, and stuck together, remove the laminations of the core column, use a flat shovel to remove the short circuit and burrs, and after trimming, remove the remaining paint film, repaint, and dry.
3. Ground fault causes iron filings to short circuit. During processing, use a thin flat shovel to remove the attached laminations from the surface of the core, remove burrs, and then paint.
4. The iron yoke clamp or other metal parts are loose, causing vibration, overheating and discoloration of the core, and burning of the paint film. After inspection, if the fault is serious, the faulty parts should be removed for repair, and the intact parts will not be moved. When assembling the damaged laminations, the repaired and intact laminations should be arranged alternately. After repair, iron loss and temperature rise tests should be conducted.
Therefore, under the high-frequency port Sensor core Generally, some parts are made of silicon steel sheets. Amorphous magnetic rings are magnetic components made of amorphous materials. Amorphous magnetic rings can be divided into iron-based amorphous and cobalt-based amorphous according to different amorphous strip materials. A high-voltage DC power supply, also known as a DC high-voltage power supply, uses AC mains or three-phase power as input and outputs a DC voltage of several thousand or tens of thousands of volts. Its output power ranges from a few hundred watts to several kilowatts, and generally can be voltage-stabilized or current-stabilized.
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