SZ9-400-20000-35 three-phase oil-immersed on-load voltage-regulating power transformer

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1000sets set/month

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Product Description:

Production introduction

The product conforms to the technical parameters and requirements of China National Standard GB1094 and GB/T6451,and a series of significant innovation is applied in aspects of material,design and structure.It has the features of high efficiency and low loss.It can save a lot of operation cost,and the social benefits are very significant.In conclusion,it is a nationally promoted new product and it is deeply favored by customers.

Installation type:indoor/outdoor type
Altitude:≤1000m
Installation site:in places without corrosive gases and obvious dusts.

Applicable standards

GB1094.1-2-1996 Power Transformer
GB1094.3-5-2003 Power Transformer
GB/T6451-1999 Technical parameters and requirements for three-phase oil-immersed power transformer

Model designation

Performance characteristics

1.The features of this product are high efficiency and low loss.It can save a lot of operation cost,and the social benefits are very significant.

2.The iron cores are made of the imported high-conduction magnetism,cold-roll,and grain-oriented silicon-steel sheets.The iron cores and windings adopt the vacuum drying and vacuum oil-filling processes,which make the internal moisture down to the very low level.

3.The conservator is hermetically sealed,which make the internal running oil to insolate with oxygen and moisture efficiently.

4.The above features guarantee the transformer does not need do replace the oil during the normal operation,greatly decrease the maintenance cost,and prolong the service life.

Notes for placing orders

Transformer type:rated capacity kVA
Number of phases:three-phase single-phase
High voltage:KV/Low voltage:KV
Frequency:50HZ 60HZ
Tapping range:±4×2.5% ±3×2.5% other
Connection group:Yyn0 Dyn11 other
Impedance voltage:normal other

Main technical parameters of SZ9-M-400~20000/10 series of transformers

Rated capacity(KVA)Voltage combination(KV)Connecting groupidNo-load lossess(W)Load-loss(W)(75oC)Short circuit impedance(%)No-load current(%)Weight(kg)Overal dimension(mm)Gauge(mm)
High voltage(KV)Tapping(%)Low voltage(KV)BodyOilGross weightLength×width×height
4006
6.3
10
±4×2.50.4Yyno or Dynll81543604.01.092532016101810×930×1250660×660
50097051801.0115040019801890×1010×1350660×660
630126063804.50.9136046023201980×1040×1400820×820
800150078000.8156052026702030×1100×1425820×820
10001740107200.7173062030002100×1160×1500820×820
12502120127500.6202071535202180×1180×1600820×820
16002700152000.6244589043452280×1260×17201070×1070
20002790191705.50.62780105050102360×1350×18001070×1070

Note:
1.Please contact us for the performance parameters,outline dimensions and other importans data for 35kv transformers with bigger capacity.
2.For 8000ka and above,we can also supply transformers with air cooling device according to customer's requirements(SFZ9).
3.The weight and dimensions in table above are only for reference.


Main technical parameters of SZ9-M-2000~20000/35 series of transformers

Rated capacity(KVA)Voltage combination(KV)Connecting groupidNo-load lossess(W)Load-loss(W)(75oC)Short circuit impedance(%)No-load current(%)Weight(kg)Overal dimension(mm)Gauge(mm)
High voltage(KV)Tapping(%)Low voltage(KV)BodyOilGross weightLength×width×height
200035
38.5
±3×2.56.3
6.6
10.5
Yd112850200006.51.002780165061402750×1410×28001070×1070
25003300217001.003300180070802800×1430×28501070×1070
31504000260007.00.903700191073002690×2020×29401070×1070
40004900305000.904350217085503180×2380×31001070×1070
50005800350000.855200245099503250×2500×31501070×1070
6300YNd117000385007.50.8565002740118003370×2600×32901070×1070
80009900427000.7577703320145003420×2740×33501475×1360
1000011700505000.7591003850168103350×2830×34001475×1360
1250013770598008.00.70106304640198003680×2950×35001475×1475
1600016570720000.70133005360233003800×3080×6001475×1475
2000019580850000.60174507100308004000×3250×38001475×1475

Note:
1.Please contact us for the performance parameters,outline dimensions and other importans data for 35kv transformers with bigger capacity.
2.For 8000ka and above,we can also supply transformers with air cooling device according to customer's requirements(SFZ9).
3.The weight and dimensions in table above are only for reference.


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Q:380V transformer always burn, how is it going
It is possible that the transformer is small. Look at the transformer capacity, take a look at the voltage of the voltage overload. 380v transformer connected to the 396V power supply can be used normally! No problem with the occurrence of heat may be wrong wiring, or the rated voltage is wrong.
Q:National Standard for Transformer Life
3, this life is in the case of rated operation (rated capacity to run). How much time is the transformer running? So in normal circumstances, this 20 or 30 years is fully able to do. 4, now, how many transformers are life and scrapped? Often the life cycle has not arrived, the transformer is eliminated. The reason is: 1) economic development is too fast, the transformer to increase the capacity, and to replace the transformer. 2) Transformer technology development fast, power transformer almost every 3-5 years out of a new product, the loss is also constantly in the drop. For these reasons, the transformer is less than 20-30 years to be updated. So no one is very concerned about this life. Guidance of the national standard for you - Guidance on the load of oil - immersed power transformers GBT 15164-1994. Transformer machinery industry standard GB / T 17468-1998 "power transformer selection guide" in Article 8 transformer thermal aging rate and life of the "transformer life is generally 20 years."
Q:Transformers are divided into several. What is the role of each? To be specific!
(Ii) Classification by purpose Transformers according to their use can be divided into power transformers, audio transformers, pulse transformers, constant voltage transformers, coupling transformers, autotransformers, isolation transformers and other. (C) according to the core (or core) shape classification Transformers according to the core (core) shape can be divided into "E" type transformers, "C" type transformers and ring transformers.
Q:2500KVA transformer rated current 3608A, how much can be overloaded current?
2500kva is the transformer capacity, P is active, COSφ = active / capacity. 0.8 = active / 2500 that active = 2000KW and because of active = 1.732 * UICOSφ and u = 0.4V, COSφ = 0.8 into the equation of current = 3608.5A.
Q:Does the production transformer require 3C certification? Does the country have any specific requirements?
1, depends on what you produce the transformer. If it is civil to three C certification. 2, industrial transformer is the most important to the ISO9001 quality management system certification. In addition, for different products, where sold, and another certification. 3, there are special users require certification, such as nuclear power plants with the transformer. 4, anyway, your business to have a special department, to deal with a variety of different certification.
Q:Is the transformer output DC or AC?
As long as the circuit used in the transformer, the transformer output is certainly the AC voltage. This is because the DC is not through the transformer (no mutual inductance), so as long as the power circuit has a transformer, its output is certainly the AC voltage. Want to make the power supply output voltage for the DC voltage, through the rectifier circuit, the AC voltage rectifier rectifier voltage can be. Transformer (Transformer) is the use of electromagnetic induction principle to change the AC voltage of the device, the main components are primary coil, secondary coil and core (core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulator (magnetic saturation transformer) and so on. According to the purpose can be divided into: power transformers and special transformers (electric furnace change, rectifier, frequency test transformer, voltage regulator, mine transformer, audio transformers, IF transformers, high-frequency transformers, impact transformers, instrument transformers, electronic transformers , Reactors, transformers, etc.). Circuit symbols commonly used as the beginning of the number. Example: T01, T201 and so on.
Q:Know the rated capacity of the transformer, how to calculate its rated current?
Low-voltage 400V distribution transformer speed calculation: per thousand volts by 1.44A, per thousand kVA of 144 ac current calculation. Formula algorithm: Three-phase transformer current I = Pe / Ue / √3 Single phase transformer current I = Pe / Ue
Q:Single bus sub-section for power distribution, transformer with a prepared and dual-use how to understand
One with a prepared, you can only put one of the transformer, any of its transformers can all the load to bring all the general into the line breaker and bus in the breakdown of the circuit breaker, interlock between the three, A change vote, B variable can not vote, or vice versa, B cast A can not vote. This is the nature of the load mostly for a load, power supply is necessary for high reliability, but also the largest investment. Dual use can be divided into several, mainly refers to the change can be put into use, and some can be put into the parallel use, in some cases is not allowed to use in parallel, is the three circuit breakers with interlocking Three locks two spoons, three circuit breakers can only vote two. At the same time the capacity of the transformer is also different, some are prepared, some are dark spare, the specific use depends on how the original system design. hope this helps.
Q:Transformer depreciation period is not specified?
Article 60 In addition to the provisions of the financial and taxation departments of the State Council, the minimum years for calculating depreciation shall be as follows: (A) houses, buildings, for 20 years; (B) aircraft, trains, ships, machinery, machinery and other production equipment for 10 years; (C) with the relevant utensils, tools, furniture, etc., for 5 years; (D) aircraft, trains, ships other than the means of transport for 4 years; (E) electronic equipment for 3 years. Tax law and the provisions of the age is basically the same is not a big difference, but the provisions of the tax law more intuitive Your company can choose according to the above I think is (b) The above is the minimum depreciation period stipulated by the enterprise. The enterprise can choose the appropriate depreciation period according to the actual situation (not lower than the minimum standard stipulated in the tax law). But not to say that the enterprise can arbitrarily extend the depreciation period according to the "hundred years" requirement to depreciate because it is compensation tax The shortest possible time to recover the expenditure to enhance the taxpayer's operating capacity
Q:Proteus transformer how to adjust the parameters, the 220V into 14V output.
The above two parameters can also be extended or reduced by the ratio. Other parameters can be considered, as shown below.

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