Tag Archives: Electrical Power Transformers

First, the production of transformers, coil winding machine and what the advantages and disadvantages of each hand

around the system?

Transformer winding machine has the advantage of high efficiency and the appearance of forming a beautiful, tall, but

small holes around the system s toroidal transformer is too much trouble, but also in the treatment process of the

insulation reliability of the anti as hand-wound in place. Hand-wound transformer magnetic flux leakage can be made

very small, in the process of winding turns for the layout can be adjusted at any time, so the real Hi-END transformer

must be hand wound, hand-winding of the The only drawback is inefficient and slow.

Second, the ring, EI type, R type, C type power transformer which several best?

They have their own advantages and disadvantages of who the best is said does not exist, so strictly speaking, what

kind of transformer can be done best. From the structure in terms of leakage magnetic ring can do the minimum, but the

sound sense of hearing in the EI-type you can do better sense of the frequency density. Alone in terms of magnetic

saturation, EI-type than the ring is strong, but the efficiency of the ring is better than EI type. Nevertheless, the

crux of the problem lies with you and will not exceed their respective advantages into full play, and this is the most

fundamental good transformer.

Current import amplifier, the ring is still the mainstream application of the transformer, which illustrates a basic

problem. * Fans of the transformer to be objective and fair price, you can not do something to get a reference and it

is not good.

It is said toroidal transformer is easy to magnetic saturation, then why do not you try to do it is not easy to

magnetic saturation? The original can be done through technical means is this. Less than full effort, or indulge in

order to save costs, then it certainly is easy to magnetic saturation. Similarly, as long as you carefully produced,

EI transformer efficiency also can be very high.

Transformer on the sound quality is good or bad a great impact because of the energy transmission and transformer core

and coil are closely related, their pass rate on the sound effects play a decisive role. As EI type transformer,

people often think it s relatively thick mid and high frequency are more slender, Why? Because of its relatively slow

transmission speed. And ring it? More fierce low frequency, high frequency is a little weaker but, why? Because it is

faster transmission speed, but if the structural change through effective, you can type the ring and EI are doing is

perfect, so The key is to look at how you do.

But at least be sure that it is, R-type transformers are not too easy to do. Use it for a small current pre-amplifier

and CD player power supply can also, if used for power after the power amp, there are more serious defects.

Because R-type transformer structure itself is not easy to change, and ring and EI-type structure is relatively easy

to achieve by changing the purpose of Jiang Sheng. Produced by R-type transformer power amplifier, the sound is

usually very compacted and lack of aura, frequency jumping ability and often do not become hard.

And third, the silicon steel core transformer silicon content the greater the more you?

Might not be, the size of the silicon content of silicon steel transformer quality impact is not great, but there is

no orientation and orientation of the core models and a relationship. Second, even if you are the same type of core

processes handled properly, it is a big difference in quality, the difference sometimes as high as fifty per cent.

Good core and the same material and its heat treatment process is very critical line winding system, good heat only a

small magnetizing current can be 10mA to 15,000 gauss, not a good heat treatment may be the exciting current to 50mA

15,000 to the corresponding Gaussian, this disparity between the two is a big difference. From the professional point

of view to determine the core of good and bad, mainly through the excitation current, iron losses, saturation

parameters of a number of indicators to be integrated * price.

Fourth, the ring-type transformer silicon steel belt splicing process, if adopted, is not it means that the quality

was not good enough?

Can not be generalized, but the head is not easy to splice the broken bit too much, because more than a bit off a

magnetic flux leakage, the more points, so the connection point should not exceed 2-3. Where the stitching on the

production process have to be the first decapitation after acid treatment, but high-end audio equipment manufactured

toroidal transformer, strictly speaking, no splicing or the use of silicon steel for the best quality of its

technology will be more secure.

Fifth, the transformer in the silicon material what is particular?

As the silicon alternating magnetic field in the loss of small, so the transformers are mainly used to make silicon

magnetic materials. Hot-rolled and cold-rolled silicon steel sheet can be divided into two types, cold-rolled silicon

steel with high permeability due and low loss, so the transformer used to produce small size, light weight, high

efficiency advantage. The performance of hot-rolled silicon steel is slightly inferior to cold-rolled silicon steel.

Ordinary silicon steel EI type transformer is made of 0.35-0.5mm red plate thickness E and I-film, heat-treated and

then insert the winding wire coil, hot-rolled silicon steel sheet using these core majority (silicon content high

quality silicon steel model D41, D42, D43, D301). Ring and C-type transformer core is made of cold rolled silicon

steel strip by winding and forming, in which C-type transformer lines cut is made by heat treatment after

impregnation.

Transformer leakage inductance is not through the primary and secondary windings of the magnetic flux generated from

these flux through the air and into the closed magnetic circuit. Enhance the transformer primary and secondary

coupling between the density can reduce the leakage inductance. Good sense transformer leakage does not exceed its

primary inductance of 1 / 100, Hi-Fi Hi-Fi tube amps output transformer is used should not exceed 1 / 500.