Amorphous Alloy Core Dry-type Transformer of SCBH15

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SCBH15 Series

Amorphous Alloy Core Dry-type Transformer





SCBH15 series amorphous alloy core dry type transformer is an efficient and energy savingnew type distribution transformer. It is acombination of technologies of amorphous alloy transformer and cast resin dry typetransformer and has the advantages of oil free, flame retardant,self extinguish, resistant to moisture, anti-cracking, free maintenance, and especiallylow no load loss. It has been widely used in railway, airport,station, high building, business center, and industrial and miningenterprises. It is particular well suited to inflammable andexplosive places.


Characteristics

●Low loss

Especially no load loss, 75% lower than ordinarytransformer at the same capacity, drastically reducingits operating cost and has obvious effect on energy-saving.


●Strong anti-short circuit capacity

Three-phase five-limb structure and frameprotection structure around iron core effectively ensure the capability of anti-short circuit.


● Low noise

The combination of reasonable design and carefultechnique makes the noise of products lower than the requirement of nationalstandard JB/10088.


● Highhumidity proof  

HV&LV coils arevacuum epoxy cast resin, can be operated in 100% relative humidityand other harsh environment.


● Low temperature rise

Coils adopt thin resin structurewithout cracking and have strong ability for heatdissipation and overload.


● Flame resistance, self-extinguishment, explosion proof and no pollutionto environment

Glass fiber and other insulating materials used in coilsare self-extinguish and can not cause fire hazard because of electric arcproduced by short circuit.

Using Condition

●Altitude:less than1000m.

●Max.temperature: less than 40.

●Min.temperature: -5.

●Max.monthly average temperature: 30.

●Max.yearly average temperature: 20.

●Noobvious pollution in installation environment.

●Indoor


Insulating Level

Voltage

Grade

(kv)

The highest voltage effective

value of  equipment

(kv)

Rated short-time applied

withstand voltage

(kV/min)

Rated lightning impact

withstand voltage

(peak)

(kv)

≤1

1.1

3

--

6

7.2

20

60

10

12

35

75

Performance Parameter

Capacitance

(Kva)

Voltage

Assembly

(kv)

HV tapping

range

(%)

LV

(KV)

Connectiion

No-load

loss

(W)

No-load

current

(%)

Load loss

75℃)W

Impedance

Voltage

%

200

6

6.3

6.6

10

10.5

11

±5

Or

±2×2.5

0.4

Dyn11

200

0.7

2200

4

250

230

0.7

2400

315

280

0.7

3020

400

300

0.6

3480

500

360

0.6

4260

630

430

0.5

5150

630

420

0.5

5200

6

800

480

0.5

6070

1000

550

0.4

7100

1250

660

0.4

8460

1600

750

0.4

10240



Outside Dimension





Type

Uk%

Dimension mm

Kg

Weight

(Kg)

L

B

H

L1

L2

SCBH15-200/10

4

1450

1000

1230

660

660

1450

SCBH15-250/10

1650

1000

1280

660

660

1700

SCBH15-31510

1700

1000

1290

660

660

1950

SCBH15-400/10

1710

1050

1290

660

660

2230

SCBH15-500/10

1750

1050

1300

820

660

2580

SCBH15-630/10

1800

1100

1320

820

660

3210

SCBH15-630/10

6

1850

1100

1310

820

660

3150

SCBH15-800/10

1930

1150

1330

820

660

3500

SCBH15-1000/10

2080

1200

1360

1070

820

4390

SCBH15-1250/10

2160

1200

1380

1070

820

4910

SCBH15-1600/10

2300

1250

1450

1070

820

6050

Note: Outsidedimension is only for your reference.



Ordering basic data

  1Rated capacity;

  2Rated voltage;

  3Rated frequency;

  4Tapping range;

  5Impedance voltage;

  6Using condition;

  7Other performance data should be indicated in thecontract.


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Q:2500KVA transformer bearing current how much calculation
2500KVA transformer carrying current of 7740A. The calculation method is: Because P = UIcosφ, so I = P / (Ucos?) = 2500 KVA / (380 Vx0.85) = 7740A. 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 use can be divided into: power transformers and special transformers (electric furnace change, rectification, frequency test transformer, voltage regulator, mine variable, audio transformers, IF transformers.
Q:What are the specifications of the transformer capacity?
The optimum load rate of the transformer (ie, the load rate at the highest efficiency) is not in the rated state, but between 40% and 70%. The load factor is too high and the loss increases obviously. On the other hand, Margin is small, a slight increase in load, you need to replace the large capacity box change, frequent capacity is bound to increase investment, affecting power supply.
Q:What is the use of the lower part of the transformer made of rail?
This approach facilitates the handling and installation of the transformer, but due to the large and larger transformers, the use of wheels is already less. Transformer The lower part of the box has two structures: (1) Set the wheels, which 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 Has been less; (2) set 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:Altium designer DXP transformer in the same name how to change?
The same name is a painting of about 2-3mil radius of the solid circle, can not directly change, must be copied from the source file to the schematic library file can be changed, that is, to re-create schematic symbols.
Q:How many transformers are used in a hundred households?
In this case, in accordance with the high-end community to consider, hundreds of people, about 30x100 = 3000kW capacity, should choose 3150kVA transformer; mid-range community, hundreds of people, should choose 1600kVA transformer; ordinary community, hundreds of people, should choose 800kVA transformer.
Q:Can dry transformers and distribution cabinets be placed in the same room?
Yes. Dry-type transformers are usually placed in the room with a shell, low-voltage cabinet is with the dry-type transformers together. The general practice is to flush the cabinet. And then connect the transformer with the low voltage cabinet directly in the cabinet to go. Outside can not see the connection of copper.
Q:Transformers, broken, how to repair
Some of the transformer buried inside an insurance, first look at the said
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:What is the transformer absorption ratio (R60 / R15)
Absorption ratio = R60 〃 / R15 〃 For the same insulating material: the moisture or defective absorption curve will change, so you can determine the insulation curve based on the insulation is good or bad, usually in megger in 15 seconds and 60 seconds of the insulation resistance ratio (This is the absorption ratio, expressed by the K value), because the insulation of the degree of moisture increases, the leakage current increase than the increase in the starting value of the absorption current is much more, expressed in the insulation resistance is: megger in 15 seconds and 60 seconds of the insulation resistance is basically equal, so the K value is close to 1; when the insulating medium is dry, because the leakage current is small, the current absorption is relatively large, so the K value is greater than 1. Experience: When the K value is greater than 1.3, the insulating medium is dry, so that by measuring the absorption ratio of the insulating medium, it is possible to determine whether the insulating medium is damped and K is a ratio which eliminates the geometric dimensions of the insulating structure , And it is the same temperature measured under the value, without going through the temperature conversion, the comparison of measurement results is very convenient.
Q:What is an isolated ring transformer?
Isolated ring-type transformer is mainly focused on its insulation performance, between the primary and secondary must have a double insulation, so that the isolation of its own high efficiency, effective protection of equipment safety.

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