Low frequency EI type Lead Transformer Without Clamping frame

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Products can be customized according to customer requirements!


Large, small household electrical appliances, small power industrial products, instrumentation and other industries.


The use of a wide range, high stability, the use of F grade 155 temperature resistance temperature rating materials. Domestic famous brand products of silicon steel sheet. Automated processing and production of shipments to ensure product consistency while improving the quality level.






Company have 21 years of business history, set research and development, production and sales as one of professional transformer manufacturing enterprises, also is transformer industry of Shandong Province CQC certification (the original Great Wall certification system, certification time longest enterprises (14 years), mainly produce and sell all kinds of transformer products, including: (transformer Division) three-phase dry type transformer, intelligent three-phase servo transformers, BK\JBK1\JBK3\JBK5 control transformer, toroidal transformer, (small transformer Division) pin, potting type, lead type power transformer series products. (high-frequency transformer Division) EE series, EFD series, PQ series, filter, I-inductor, loop inductance etc..

We are able to supply various types of terminal blocks according to clients' requirement,Please contact us so we can offer you the best quality,competitive price and timely delivery.

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Q:Taiwan, Taiwan, the concept of transformer
Transformer refers to equipment; Taiwan change is installed in a place of the transformer, is specifically installed, running a transformer; Taiwan area refers to the regional range of variable power supply. Metering point is for the two sides to determine the installation of electric energy meter position, in general, the measurement point should be set at the demarcation point of property rights.
Q:How is the transformer sorted?
2, according to the cooling method points: 1) Dry-type transformers: rely on air convection for natural cooling or increase fan cooling, used for high-rise buildings, high-speed toll stations and local lighting, electronic circuits and other small-capacity transformers. 2) oil-immersed transformers: rely on oil as a cooling medium, such as oil from the cold, oil-cooled, cold water, forced oil circulation. 3, according to the use of points: 1) power transformers: for power transmission and distribution system of the rise and fall voltage. 2) instrument with transformers: such as voltage transformers, current transformers, for measuring instruments and relay protection devices. 3) test transformer: to produce high pressure, the electrical equipment for high pressure test. 4) special transformers: such as electric furnace transformers, rectifier transformers, adjust the transformer, capacitive transformers, phase-shifting transformers.
Q:TN-S system in the transformer side pe line and n-line neutral point how to take
In the transformer side of the PE line and N line are connected to the transformer shell conductive part. TN-S for the power neutral point directly grounded electrical equipment exposed conductive part of the zero line through the grounding of the zero protection system, N for the work of the zero line, PE for the protection of the ground wire, that is, equipment connected to the PE housing.
Q:Which is good for the transformer?
and other electrical equipment. Product design novel, small size, handsome in appearance, with low loss, low noise, impact resistance and so on. Widely used in industrial and mining enterprises, textile machinery, printing and packaging, petrochemical, schools, shopping malls, elevators, post and telecommunications, medical machinery and other needs of the normal voltage guarantee occasions.
Q:On the transformer problem
2 excitation current characteristics When closing the circuit breaker to charge the transformer, sometimes you can see the transformer ammeter pointer put great, and then quickly return to the normal no-load current value, the impact current is usually called the inrush current, features are as follows: 1) The inrush current contains high-order harmonic components (mainly secondary and tertiary harmonics), so the variation of the inrush current is a steep wave. 2) The attenuation constant of the inrush current is related to the saturation of the core. The deeper the saturation, the smaller the reactance and the faster the attenuation. Therefore, at the beginning of the moment decay quickly, then gradually slow down, after 0.5 ~ 1s after its value does not exceed (0.25 ~ 0.5) In. 3) Under normal circumstances, the greater the capacity of the transformer, the longer the duration of attenuation, but the general trend is the inrush current decay rate is often slower than the short-circuit current attenuation. 4) The value of the inrush current is very large, the maximum rated current of 8 to 10 times. When setting up a circuit breaker to control a transformer, the quick break can be set according to the transformer excitation current.
Q:Transformer capacity unit KVA?
The rated value of the output capacity of the transformer in the rated state is expressed in kilowatts (kVA) (VA and MVA are not commonly used). Since the transformer has a high operating efficiency, the original, secondary winding (winding deformation Tester) rated capacity equal to the design value. KV.A is the capacity of the transformer, KVA is the apparent power, its size and power factor. KV and KVA conversion relationship 1 kV (kV) = 1000 V (V) 1 V (V) = 1000 mV (mV) Kilovolts greater than volts greater than millivolts, the rate of 1000. 1 V (V) = 1000000 VV (μv) 1 MV (MV) = 1000000 V (V)
Q:Rectifier and rectifier transformer
First of all to clear their own concepts to distinguish. 1. Transformers, Narrow concept: the concept of power transformers is able to electromagnetic coupling by a certain type of alternating energy into another standard alternating energy, such as voltage and current conversion, but in any case, the energy is conserved; General concept: any equipment capable of transforming can be a transformer; for example, switching power supply, resistance step-down, three-terminal regulator, and so on; 2. Rectifier, Rectification is the process of turning the alternating signal into a DC signal. The rectifier is a device that can turn the alternating signal into a DC signal. 3. Then look at the difference, Rectifier as mentioned above, the AC signal into a DC signal; For example, you can use a rectifier (rectifier bridge) to convert the mains 220V 50Hz AC into 308V DC; Rectifier transformers, that is, in the "AC into DC" can also be voltage conversion, for example, can be reduced after the rectification of 308V into 5V, 9V, 12V, or boost into 400V, 450V, 500V, or other you Want the voltage. Of course, here the transformer to do a broad understanding, because your voltage has been rectified DC voltage.
Q:Why is the notebook computer transformer hot?
Laptop Transformer Professional term is called power adapter. Power adapter heat is normal. Power adapter power conversion efficiency can only reach 75-85 or so, in the voltage conversion, a part of the energy loss, which in addition to a small part of the loss in the form of waves, the majority of the way out of the heat The The greater the power of the power adapter, the more energy is lost, the greater the heat of the power supply. The current power adapter on the market are using fire-resistant high-temperature plastic sealed package, the internal heat generated by the plastic shell mainly distributed out. Therefore, the power adapter surface temperature is still quite high, the maximum temperature and even up to about 70 degrees. The following are the same as the " Power adapter heat solution The power adapter heat is unavoidable, but it can speed up its heat to prevent its temperature from rising continuously. 1, the choice of small pressure drop, low loss of switching components, cooling area to be as large as possible, more than 100W switching power supply should generally have a metal perforated shell, or with cooling fan. 2, as far as possible to put the power adapter in a better place to ventilated heat, do not put things like books on the power above. 3, in a higher temperature environment, the use of notebooks, notebook power adapter should be placed in a place not exposed to direct sunlight and ventilation; do not put the power adapter in the notebook near the cooling outlet, or not only the power adapter heat dissipation is not Go out, but also absorb part of the heat.
Q:What is the difference between AC transformers and DC transformers?
DC can not be used transformer transformer, (available switch circuit DC-DC conversion.) Only AC only transformer with transformer.
Q:10 (6) What is the meaning of 10 and 6 in the KV transformer?
These numbers refer to the voltage, 10 (6) KV transformer 10 and 6 refers to the primary side of the transformer voltage level is 10kV or 6kV. 10 / 0.4 (0.22) KV substation in the number of "/" refers to the transformer primary side of the voltage level 10kV, followed by the transformer secondary side of the voltage level is 0.4kV and 0.22kV, that is, 400V And 220V The primary voltage is the voltage of the transformer line, the secondary voltage is the voltage after the transformer transformer.

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