Low frequency EI type Encapsulated Transformer

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1000 unit
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50000 unit/month

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

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Wide range, high stability, easy installation, low noise. The coating lines were used for the F grade 155. Silicon steel sheet used in domestic famous brand products. Automated processing and production of shipments to ensure product consistency while improving the quality level.

.jpgLow frequency EI type  Encapsulated Transformer

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Low frequency EI type  Encapsulated Transformer.jpg

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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:Three-phase transformer how four ways to connect it?
This is the wrong label. The reason is as follows: 1, regardless of the winding of several transformers, its high voltage (primary side, input) may only be a set of windings. Which transformer has two inputs ah! Because only the representation of high-voltage connection, only with capital letters. 2, so the second letter (Y) is wrong, maybe redundant. Obviously, this is a three-winding transformer, the high voltage is Y connected, and there are zero line leads. The medium pressure and the high pressure are autocouple, so it is a0. A0 of course shows that the medium pressure in the phase with the high pressure phase. Is it mistaken for here that u should be u? The The 3, low pressure, of course, do not have to say is d then. 4, now the new standard of writing is not used (,) number to separate. If this is a standard three-winding transformer (the second winding is auto-coupled). Then it is: "YNa0d11" Convenient words, give an echo. So you take a closer look, whether as I said. Title may be wrong in expression.
Q:Why the provisions of the maximum temperature of the provisions of the transformer 65 °?
Most big oil temperature increased load, the transformer internal fault, there is lack of oil performance security risks. So we do need to limit oil temperature and protection tripping. Small capacity (630KVA less and outdoor) often do not have the oil temperature protection. I have the original table 800KVA overload (secondary current 1500A), top oil temperature to over 90 degrees ......
Q:What is the unit of the transformer?
KVA instead of KW? VA or KVA is the apparent power, AC line used, also known as the capacity, that is, voltage and current rms product, the unit ... but will affect the load design of the transformer, so use VA or KVA to calculate more accurate. And W or KW is our usual habit of the law, written formal.
Q:1000KVA transformer power loss is how much
It depends on its kind of transformer oil-immersed transformer or dry, 1000KVA dry-type transformer no-load loss of about 1.5% to fill the load loss of 3%, oil-immersed transformer no-load loss of about 3% to fill the load loss of 5% The above is just for reference, because each manufacturer has a difference.
Q:Why the new operation of the transformer to be charged
Do the pressure test, measured insulation performance. Although the discharge of a transformer said, but no charging function
Q:What is the normal color of the transformer oil?
these substances can make the oil color becomes darker. If the transformer oil color is dark, should pay attention to, can determine its dielectric loss factor, breakdown voltage, moisture, acid value and color indicators are in line with the new oil standards, conditional units can also determine its oxidation stability indicators Standards compliant
Q:Transformer fever how to do?
   National standard (oil-immersed transformer) the top of the oil temperature is generally adjusted at 85 ℃, if more than 85 ℃, to analyze the reasons: 1, if it is because the room temperature is too high, heavy load and other slowly rising, you can continue to run more than 85 ℃, but The maximum temperature can not exceed 95 ℃ (when the transformer core core or winding is 105 ℃, will seriously damage the insulation, shorten the life or burn the transformer); 2, the transformer running at 85 ℃, the transformer oil temperature and room temperature difference can not exceed 55 ℃, if it is over, may be a serious overload, the voltage is too low, the current is too large, internal failure, etc., continue to run will seriously damage the insulation, shorten the life or burn the transformer.
Q:Why is the transformer coil insulation?
It is easy to understand because the transformer is used in different environments, according to different insulation level selection, can extend the life of the transformer
Q:Transformer depreciation period is not specified?
Transformer is the exchange of AC voltage, alternating current and impedance of the device, the core of the transformer - when the primary coil with AC current, the core (or core) will produce AC flux, the secondary coil induction Out of voltage (or current). Transformer consists of iron core (or core) and coil, the coil has two or more than the winding, which connected to the power supply winding called the primary coil, the rest of the winding called secondary coil. Different types of transformers have the corresponding technical requirements, the corresponding technical parameters can be used. Such as power transformer main technical parameters are: rated power, rated voltage and voltage ratio, rated frequency, operating temperature level, temperature rise, voltage regulation, insulation performance and moisture resistance, for the general low frequency transformer main technical parameters are: change Pressure ratio, frequency characteristics, nonlinear distortion, magnetic shielding, electrostatic shielding, efficiency and so on. Regulations of the People's Republic of China on the Implementation of Enterprise Income Tax Law
Q:Power transformer primary current and secondary current
For three-phase transformers: Transformer rated capacity = root number 3 X Transformer rated current X Transformer rated voltage So the rated current of the transformer = rated capacity of the transformer / (root 3 X transformer rated voltage) Such as a 100kVA three-phase transformer, the primary voltage of 10kV, the secondary voltage of 0.4kV, then: Its primary current: I1 = S / (1.732XU1) = 100 / (1.732X10) = 5.77 (A) Its secondary current: 2 = S / (1.732XU2) = 100 / (1.732X0.4) = 144 (A)

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