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It is used in almost all electronic products. Its principle is simple, but the winding process of transformer will have different requirements according to different use occasions (different uses).According to the size of the transmission power, the power transformer can be divided into several grades: 10KVA for high power, 10KVA ~ 0.5kva for medium power, 0.5kva ~ 25VA for small
Can single phase transformer be changed into three phase?This is not possible, because if you want to use single-phase to three-phase conversion, only split camera or inverter can be used.Three phase alternating current is a transmission form of electric energy, referred to as three-phase electricity.Three phase AC power supply is composed of three alternating current sources with the same frequency, equal amplitude and 120 phase difference
According to the information, the line trip accidents caused by lightning often occur in rural areas. Why does this problem occur?Many of them are caused by the failure of relevant personnel in lightning protection work, which leads to the embarrassing situation that sometimes there is no power transmission, which has to be reflected.First of all, the pressure is changed
JBK machine tool control transformer is a kind of transformer used in machine tools and mechanical equipment. Its model represents J machine tool, B transformer and K control.The main purpose is to control the voltage in the circuit, so as to carry out local lighting and indicator light.Its main working conditions are as follows:
; 1. Ambient temperature ≤ 45 ℃.2. Air phase
Load loss refers to copper loss caused by current in primary and secondary coils of transformer and iron loss caused by excitation current on excitation resistance.How to calculate the load loss under rated load: 1.Let's expand a little bit. The so-called rating
The principle of isolation transformer is the same as that of ordinary transformer.They all use the principle of electromagnetic induction.Isolation transformer generally refers to 1:1 transformer.Because the secondary is not connected to each other.There is no potential difference between any secondary wire and the ground.Use safety.It is often used as maintenance power supply.Isolation transformers are not all 1:1 transformers....
Autotransformer is a kind of special transformer whose primary stage shares one winding. What are the advantages of autotransformer?Compared with the isolation transformer with the same capacity, the autotransformer has less material consumption and lower cost.Since the use of copper wire and silicon steel sheet is reduced, the autotransformer has been used in many fields
There are many reasons for the turn to turn short circuit of transformer windings, most of which are caused by the decrease of insulation performance of windings.1. After the turn to turn short circuit of transformer winding, the typical characteristics are: abnormal heating of transformer, sometimes special squeaking sound coming out; when the inter turn short circuit is serious, there will be burnt smell coming out.2. Turn to turn short circuit point
The control transformer is a small dry type transformer.It is often used as local lighting power supply, signal lamp or indicator light power supply, and as control circuit power supply in electrical equipment.The control transformer is mainly suitable for AC 50 Hz (or 60 Hz), voltage 1000 V and below, and can work continuously for a long time under rated load.It is usually used in machine tools
There are two main reasons for the aging of transformer equipment.First of all, the transformer has been put into use for a long time, and the function and parts of the long-term operation transformer equipment are gradually aging, such as the corrosion of the switch blade, which leads to accidents.Secondly, abnormal use leads to equipment aging.For example, the temperature of the transformer makes
What is the rectifier transformer; what is the pulse transformer rectifier device power supply with the transformer, transformer called rectifier transformer, used to transmit pulse of the special transformer called pulse transformer 1, the difference in use 1, rectifier transformer is mainly used for low voltage, high current; high voltage, low current; allow short-term overload
Marine transformer, named by its application, is a kind of electrical equipment used in ships. What are the characteristics of this kind of transformer?The winding of marine transformer is made of high strength enameled wire, double glass wire or composite insulated wire. The insulation grade can be produced on demand, mainly B, f or H
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