1500 kVA Transformer

Daelim 1500 kVA Transformer provides a variety of different options, in line with IEC726, GB/T10228-1997, IEC, ANSI, IEEE, GOST and other standards. They are 3 phase transformer, dry type onan transformers and Full-sealed Distribution Transformer. They are designed to be used in heavy load centers and places with special fire protection requirements, industrial and agricultural power transmission and distribution and other places. Daelim has 15 years of experience in this industry, and our professional installation team can provide local installation services in your country. And we can also provide you with intimate customized services, and produce 1500 kVA Transformer for you according to the standards of your country.

oil immersed 2 windings 3 phase transformer

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pad mounted 1500 kva transformer

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3 phase dry type transforme

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Single Phase Pad Mounted Tansformer

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1500 kVA Transformer: The Ultimate FAQ Guide

The 1500 kVA transformer is among the standard ratings of transformers. Professionals commonly use this rating for small to medium voltage applications. Plenty of these applications include residential up to medium-scale industrial use. This article by Daelim will be discussing everything you need to know about 1500 kVA transformers.

 

Daelim is the leading Chinese brand for electrical solutions. They offer quality products within an affordable price range. Because of this, within just a few years, Daelim has already established itself as one of the top-performing electrical manufacturers locally and worldwide. Therefore, if you need an electrical solution, you can always count on Daelim.

 

1500 kVA transformer can hold any apparent power below 1500 kVA. But manufacturers have variances in creating their transformers which may affect the power holding capacity. Read more.

Transformer 1500 kVA And Its Function

Transformer 500 kVA factory
Transformer 500 kVA factory

Transformer 1500 kVA is specifically intended to cater within a load span. The unit kVA means kilovolts-amperes which represents the apparent power of the transformer. Thus, the rating 1500 kVA implies that this transformer can hold any apparent power below 1500 kVA.

 

However, thresholds to consider in the electrical industry may affect the transformer’s power holding capacity. So, always consult your local manufacturer or expert in verifying this matter. Besides, manufacturers have variances in creating their transformers. With this comes the same differences in its capacity and other specifications. You may want to take that into account before buying one.

 

A 1500 kVA transformer can be step-up or step-down, which indicates the relationship of voltage input to the voltage output. Step-up transformers mean that the voltage output should be greater than its input, thus “step-up”. Meanwhile, the opposite happens with “step-down” transformers, where the output voltage is lower than the input.

 

Kindly note that the transformer can convert only the voltage. Don’t confuse electrical power with voltage as they are different units in electricity. Volts measure the voltage while watt represents electrical power.

1500 kVA Transformer Specifications

Different transformer ratings have different application thresholds. Below are the common value ranges and specifications that a 1500 kVA transformer can withhold.


Ampacity


Ampacity is the ampere capacity of a transformer. Ampere represents the electrical current which is the rate at which charges flow.

As for the 1500 kVA transformer, it has the following ampacity below. Kindly note that these ampacities are based on a three-phase system. This is due to higher ratings like 1500 kVA are typically designed into three-phase systems.


Volts to Ampere Ratio for Three-Phase 1500 kVA Transformer


208 V : 4163.70 Amps
240V : 3608.54
480V : 1804.27
600V : 1443.42
2400V : 360.85
4160V : 208.19

 

For whatever reason you may need a single-phase 1500 kVA transformer, please consult your local manufacturer. The Single-phase type for this rating is doubtful due to efficiency reasons.

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Data for Liquid-filled Loop Feed Pad Mounted Transformer
Rated Power (KVA)
High Voltage (V)
Low Voltage (V)
Loss (W)
No-load Loss (W)
On-load Loss (W)
75
34500/ 19920/ 13800/ 7957/ 13200/ 7620/ 12470/ 7200 or others
240 480 480Y/ 277 600Y/ 347
180
1250
112.5
200
1500
150
280
2200
225
400
3050
300
480
3650
500
680
5100
750
980
7500
1000
1150
10300
1200
1320
12120
1500
1640
14500
2000
2160
20645
2500
2680
27786
3000
3300
30300
3750
4125
37875
Image
12.4kv 1000kva pad mounted 1500 kva 3 phase transformer

 

Phase Type


There are two prevailing phase types in the market which are single and three-phase type systems. The distinction between the two underlies within the number winding in their cores. Single-phase transformers have two windings or coils that transform voltages. They only have an input and an output coil designed to perform the function.

 

On the other hand, three-phase have a three coil system. Manufacturers space these coils together at approximately 120 degrees. This configuration, called “delta”, converts voltages by rotating them within the magnetic field. The output is then distributed through 3 output lines.

 

As for the 1500 kVA transformer, it is typically designed for a three-phase system. It is a standard for higher transformers ratings to be designed as such due to efficiency and cost concerns.

 

class dry type onan transformers 1500 kva
class dry type onan transformers 1500 kva

 

Cooling Type

 

We can categorize transformer cooling types as dry-type, oil-cooled, or a mix of both. Commonly, dry-type cooling works for small rating transformers, while oil-cooled is more suitable for higher ratings.

 

The 1500 kVA transformer classifies as a medium to high voltage transformer, making oil-cooling more suitable for it. However, certain cases might require the need for a dry-type variant. For this, below are some of the key distinctions between the two cooling types. The following factors are to be considered in whatever application.

 

 

Tachnical Data for Single-Phase Pole Mounted Distributation Transformer
Rated Power (KVA)
High Voltage (V)
Low Voltage (V)
Loss (W)
Dimension(mm)
Weight
No-load Loss (W)
On-load Loss (W)
W
D
H
5
34500/ 19920 13800/ 7957 13200/ 7620 12470/ 7200 or others
120-240 240-480 347 600
19
75
465
485
855
92
10
36
120
500
525
885
150
15
50
195
520
565
905
210
25
80
290
560
590
935
258
37.5
105
360
610
625
935
340
50
135
500
635
675
1035
395
75
190
650
745
840
1035
480
100
210
850
770
890
1135
530
167
350
1410
795
965
1335
680
single phase 1500 KVA transformers
single phase 1500 KVA transformers

 

Single Phase Systems:

 

1. Very resistive to contaminants because of the non-fluid cooling design.

 

2. Dry-type transformers have higher operating costs and a shorter lifespan.

 

3. Dry-type transformers are typically “noisier” compared to oil types.

 

4. This transformer type has a minimal recycling possibility.

 

5. Dry-type transformers can come in massive units with limited size and voltage. Thus, this type is more at risk for overheating if an overload occurs. Furthermore, these conditions also cause concerns for energy loss, higher maintenance expenses, and storage space.

 

6. As for voltages, dry types can only handle small to medium loads for the reasoning mentioned above.

 

7. Location is typically the determining factor in picking which transformer type to use. Dry-type transformers are more environmentally safe as it poses fewer risks for fire hazards. This makes it ideal for near or within building installations like inside shopping malls, multistorey apartments, and the like.

 

Main Technical Parameters for three-phase two winding on-load-tap-changing power transformer
Rated Power (KVA)
High Voltage (kV)
H.V.Tap range
Low Voltage (kv)
Connection symbol
Short Circuit Impendence (%)
No-load loss(KW)
On-load loss(KW)
No load current (%)
S9
S10
S11
S9
S10
S11
31500
220 230 242
±8x1.25% ±8x1.5%
6.3,6.6 10.5,11 20,34.5 35,37 38.5,66 69
YNd11
12~14
38
34
30
135
128
128
0.7
40000
45
41
36
157
149
149
0.63
50000
54
49
43
189
180
180
0.56
63000
63
57
50
220
209
209
0.56
90000
80
72
64
288
274
274
0.49
120000
99
89
79
346
329
329
0.49
150000
116
104
93
405
385
385
0.42
150000
135
122
108
468
445
445
0.42
Distribution power transformer 350 kva 33000v three-phase
Distribution power transformer 350 kva 33000v three-phase

 

 

Three-Phase Sytems:

 

1. Oil-type transformers are more maintenance intensive. The oil content shall undergo regular checking for contaminants.

 

2. These types have higher performance and energy efficiency. Due to this, oil cooling systems last longer. Thus, significantly reducing possible costs in procuring additional replacement units.

 

3. Oil-type transformers operate within the lower sound levels. Therefore, you don’t have to worry about noise pollution even if the operation involves batches of these transformers.

 

4. In terms of recyclability, oil-cooled stands superior. It boasts a longer lifespan and easier maintenance, resulting in low waste and replaceability requirements. Furthermore, oil-cooled cores have higher possibilities for reclamation or reuse.

 

5. Oil-type transformers are more efficient and can be significantly smaller than their counterparts. Consequently, it occupies less space for installation or mounting. Morever, this type can handle drastically higher amounts of loads. The reason why higher transformer ratings are recommended is to have this type of cooling.

 

6. As for the voltages, oil-type can handle heavier electrical loads. This is due to the efficiency of its cooling and size possibility. Imagine how massive transformers can be in higher ratings if they only come in dry type.

 

7. Oil-type can be more efficient; however, its oil content can pose a fire hazard under certain conditions. Thus, it is typically installed within separate shelters or just simply outside because of such reasons.

 

 

How Much Oil Is in a 1500 Kva Transformer?


Typical designs of 1500 kVA transformers can handle 1,200 liters of oil. However, do note that variations can occur depending on the manufacturer. So, always check the specification of the product you are in prospect of buying.

How Do You Calculate Kva for a Transformer?

 

Calculating the kVA is necessary for verifying what transformer rating you need. In some cases, requirements such as amperes or volts are specified instead of kVA. Understanding the conversion methods will be handy in given situations. Below is the method of kVA computation that is differentiated between single-phase and three-phase systems.

 

1. Determine the Load Voltage (Volts)


2. Check the load current (Amperes)


3. Check line voltage


4. Then verify your use, whether it is single or three phases. Formula to use:

 

Single-Phase: Volts x Amps /100 = kVA
Three-Phase: Volts x Amps x 1.732 /100 = kVA

 

If the kVA of the load is equal to or less than 1500kVA, then the transformer 1500kVA fits the job. The transformer kVA should always have leeway for current requirements and possible future expansions.

Takeaway

Understanding how the 1500 kVa transformer works allows you to deal with its applications better. Therefore, you can select a transformer unit suitable for your needs. This can save you the hassle and expenses in the long run. Indeed, taking time to learn about the product beforehand can help you avoid several issues later on.

 

Ultimately, the product should come from a reputable brand attested by years of experience and expertise. Purchase only from a trusted manufacturer that offers durable yet affordable units. The cost should not compromise the quality of the product.

 

With a decade of good field reputation, you can never go wrong with Daelim. As mentioned, Daelim Belefic is the leading brand of transformer manufacturer in China. If in search of a quality 1500 kVA transformer or other electrical components, look no further; Daelim has it.

 

Daelim Belafic is your innovative and reliable partner for electrical products and solutions. Contact us today for further inquiries or collaboration.

References:

DAELIM: An Electric Product & Equipment Manufacturer.