Difference between isolation transformer and switching power supply
Isolation transformer refers to a transformer with electrical isolation between the input winding and the output winding. Its role is to safely isolate people from electrical appliances. Its input, input and output are AC power, switching power supply is AC to DC transformer; isolation transformer is a ...
Several maintenance methods and points of isolation transformer
Isolation transformer refers to a transformer with electrical isolation between the input winding and the output winding. The isolation transformer is used to avoid accidentally touching the charged body at the same time. The isolation of the transformer is to isolate the currents of the primary and secondary windings. Early for European countries ...
Analysis of iron cores in transformers
The iron core is basically not found in power transformers, and is composed of iron core laminations, insulation parts, and iron core structural parts. The core body is composed of a magnetic steel strip with high magnetic permeability. In order for different windings to sense a voltage proportional to the number of turns, two winding chains are required ...
How to judge transformer accident detection and measures
There is an abnormal sound inside the transformer. There may be the following reasons for the abnormal sound inside the transformer: severe overload caused a heavy “humming” sound inside the transformer; due to poor internal contact or breakdown points, the inside of the transformer “squeaked ...
How to reduce the electromagnetic interference of transformers on amplifiers
Power transformers can interfere with amplifiers through magnetic fields, electromagnetic induction, and circuits, and are the largest source of interference in audio equipment. Therefore, it is necessary to deal with its working state and application environment in order to effectively avoid the interference caused by the power ...
How to properly operate a three-phase voltage regulator
How to pay attention to how to use the three-phase voltage regulator What matters need to pay attention to when using the three-phase voltage regulator can be considered from the following aspects: 1. Prepare the input voltage switch ...
Transformer characteristics classification
Transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance change ...
Effect of Transformer on the Performance of Short Circuit Impedance
When the transformer is running at full load, the level of the short-circuit impedance has a certain effect on the level of the secondary-side output voltage. The short-circuit impedance is small, the voltage drop is small, the short-circuit resistance is large, and the voltage drop is large. When the transformer load has a short circuit, the short circuit impedance is small, and the short circuit ...
Detecting dry-type transformer failures through abnormal sounds
There is noise in the dry-type transformer. If the sound of the transformer is larger than normal and there is obvious noise, but there is no obvious abnormality in the current and voltage, it may be caused by the looseness of the internal clamps or the screws pressing the iron core, which will increase the vibration of the silicon steel sheet. dry...
Under what conditions does the dry-type transformer in operation need to be powered off immediately?
1. When the casing of the dry-type transformer is found to be seriously damaged and discharged, stop using it immediately and have it inspected by a professional. 2. The carbon content of the dry-type transformer oil and excessive changes in oil color, etc., need to be stopped and inspected. 3.Dry type transformer ...