SCB9-30-2500-10 Epoxy resin dry-type power transformer

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Production introduction

The dry-type transformers are casted with epoxyresin,which are made of high quality materials by means of a strict process with advanced production and testing devices.The product features high reliability and long service life.In accordance with different operation environment,it can be equipped with different protection casings or without casing.It can replace the oil-immersed transformer and be used in the high buildings,business centers,airports,tunnels,chemical plants,nuclear power stations and watercrafts ect.

Normal service conditions
1)Altitude should not be over 1000m:indoor type
2)Highest ambient temperature should not over:+40oC;Highest daily average should not over temperature:+30oC
3)Highest annual average temperature should not over +20oC,lowest temperature should not below -5oC.We can provide transformer operated in special conditions according to user's requirement.

Model designation

Applicable standards
GB6450-1986 Dry-type power transformer
GB4208-1993 Casing protection grade(IP code)
GB/T10228-1997 Technical parameters and requirements for dry-type power transformer
Performance characteristics

1.The product is safe,fire-proof,pollution free,and can be used in the load center directly.
2.High mechanical strength,strong shour-circuit proof capacity,small partial discharge,excellent thermal stability,high reliability,and long service life.
3.Low loss,low noise,energy saving and maintenance free.
4.Excellent heat dissipation,great overload capacity and a large operating capacity is available when ONAF is applied.
5.Good humidity resistance,it's suitable for operating in the highly humid and harsh environment.
6.An intelligent signal and temperature control system is adopted,which can automatically monitor and display all working temperature of the three-phase windings.The blowing fan can give an alarm,switch on and off automatically and conduct tripping operation to protect the transformer.
7.Dur to the structure is compact and weight is light,it can save space and decrease the cost of installation.

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:4% 6% other
Cooling method: ONAN ONAF
Protecting grade of outer casing:IP00 IP20 IP30 other

Method of incoming and outgoing line:
1.Incoming line to lower part and outgoing line from upper part
2.Incoming line to upper part and outgoing line form upper part
3.Incoming line to upper part and outgoing line form side part

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Q:What are the transformer capacity?
The size of the transformer capacity, usually based on the required power supply unit to determine the size of the power supply, with the voltage level is different, the voltage level product capacity is not the same. Voltage levels from 10KV ~ 1000KV range. The conventional capacity starts at 10KVA, and as the voltage level increases, the capacity increases accordingly. For example: 10KVA / 10KV, 500 / 10,2000 / 35,31500 / 66,40000 / 110,100000 / 220,240000 / 330,400000 / 500 and so on (due to too many types, but also the unconventional capacity of the transformer so Can not be simple summary).
Q:Transformer Amorphous Alloy and Silicon Steel Sheet Advantages and Disadvantages
(5) from electrical performance. In order to reduce the shearing amount of the core piece, the core of the whole product is composed of four separate core frames, and each phase winding is set on the two separate walls of the magnetic circuit. The magnetic flux in each box in addition to the fundamental flux, there are three harmonic flux exists, a winding in the two volumes of the core frame, the third harmonic flux in the opposite phase, the value of equal , So that the third harmonic flux vector in each set of windings is zero. Such as the primary side of the D connection, there are three harmonic current loop, when the induced secondary side of the voltage waveform, there will be no third harmonic voltage components
Q:A liter of transformer oil how much jin
According to the density of the transformer oil can know, a liter of transformer oil weight should be 0.895 kg, which is 1.79 kg. Transformer oil: is a kind of oil fractionation products, its main components are alkanes, cycloalkyl saturated hydrocarbons, aromatic unsaturated hydrocarbons and other compounds. Commonly known as Fangpeng oil, light yellow transparent liquid, the relative density of 0.895. Freezing point <-45 ℃.
Q:What is the use of the lower part of the transformer made of rail?
Transformer The lower part of the box has two structures: 1 set the wheels. This requires the installation of the track on the basis of the transformer, and then the wheels fixed on the I-beam track, this way to facilitate the maintenance and installation of the transformer handling, but because of the large and larger transformers, the use of wheels is already less; I-beam or channel as a load-bearing beam. This transformer does not need to set the track, on the basis of the transformer relative to the location of the beam weighing embedded flat steel, the transformer in place after the load-bearing beam fixed fixed on the base embedded parts. Need to move the transformer, the chisel spot welding, with the hoist and other machinery will slowly drag the transformer.
Q:Transformer rated capacity 500 / 750KVA (AN / AF) What does it mean?
Transformer under natural cooling conditions, the maximum capacity of 500kVA, air-cooled conditions, the maximum 750kVA A refers to air, N refers to the natural cycle, F refers to forced circulation
Q:How to increase the transformer output current
1, in the case of load, increase the load, multi-access electrical equipment, you can increase the output current.
Q:What is the vacuum impregnation of the transformer?
so that the transformer immersed in vacuum under the conditions of the paint, so you can rule out the bubble inside the winding, increase Insulation performance. Dip out after drying.
Q:Transformer 1250KVA Dimensions
10kV grade distribution transformer oil immersion 1250KVA appearance size 1786X1170X1410 (length X width X height); dry 1250KVA appearance size 1470X1200X1450 (length X width X height), for reference, the specific best asked suppliers.
Q:Transformer capacity unit KVA?
The transformer uses KVA as a unit because it is not possible to obtain active power (symbol P, unit KW) and reactive power (symbol Q, unit KVAR) if the load is not determined, and only use KVA as a unit Apparent power, symbol S. S ^ 2 = P ^ 2 + Q ^ You can understand the active impedance of the transformer when the load is pure impedance. In addition, how to KVA as a unit of transformer production, calculate the number of transformers? The size of the load divided by the transformer capacity, leaving the margin, that is, the number of transformers, if the power factor is small, it is necessary to add a few too transformer, but this is not very economical, better way is to reactive compensation. You can refer to the load power size, and power factor, if the power factor is not, you can estimate to take 0.8, (Power transformers are generally 110KV, 220KV, 500KV) Question added: 110KV transformer, is not it that the maximum output voltage is 110KV? Not the highest output voltage, but the rated output voltage. That is, the primary input voltage, the secondary side of the output voltage, you can understand the normal operating voltage.
Q:Will the 250KVA, 500KVA, 630KVA Van transformer size,
250KVA, 500KVA, 630KVA Van transformer size, size: length 4.6m, width 2.5m, 2.4m high. Transformer: 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). In electrical equipment and wireless circuits, commonly used as lifting voltage, matching impedance, safety isolation and so on. The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulator (magnetic saturation transformer) and so on. According to the use can be divided into: distribution transformers, power transformers, sealed transformers, modular transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric transformers, rectifier transformers.

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