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Conventional Single-phase Pole-mounted Distribution Transformer

Characteristics
1. For the conventional single-phase pole-mounted distribution transformer, the high voltage porcelain bushing installed on the top of the cover band is outfitted with eyebolt terminal, and the undercut gasket seats offer better sealing result. The terminal, made from cast bronze and plated with tin, fits for connection to copper or aluminum cable.

2. The one-piece fasten ring achieves different functions, such as extending the service life of our product, facilitating inspection process, maintaining uniform pressure around the entire rim, etc. Meanwhile, it works together with a specially made tank rim, drawn cover and gasket to realize reliable sealing performance.

3. The tank wall mounted low voltage bushings have annular shaped terminals that are plated with tin.

4. This conventional pole-mounted distribution transformer is equipped with self-sealing pressure relief valve, while the upper and lower hanger brackets which are manufactured by hot rolled steel and are welded to the tank, are in accordance with ANSI standard. The ground connector is ring-type and bolted.

5. In general, every piece of our products adopts self-sealing cylindrical structure, and employs lifting lug, grounding device, pressure relief valve and other components. In addition, there is one or two high voltage bushings on the cover, and the low voltage bushings are mounted on the wall, and eyebolt terminals are applied for the bushings.

Advantages
The conventional distribution transformer makes use of highly efficient and energy saving wound core, and our product is mounted on the pole, thereby cutting down the installation size, construction cost and low-voltage power supply radius. As a result, the low voltage line loss is reduced by as much as 60% or more, and the power supply quality is enhanced. Moreover, this device is featured by excellent overload capability, convenient maintenance, continuous and reliable working, etc.

Applications
Our conventional pole-mounted distribution transformer is commonly used in various places including rural areas, remote regions and scattered villages to provide high quality power supply for daily lighting, agricultural production and industrial plants. Aside from these, it is also suitable for the energy saving projects for railway and urban grid.

Technical Parameters
Table 1: D11 Series with C.R.G.O Core for Foreign Area

Model Rated
power
(kVA) 		HV ratings (V) Tapping
range (%) 		LV ratings
(V) 		Loss (W) Dimensions (mm) Weight(kg)
No-load
loss 		Full-load
loss 		A B C D E Oil Total
D11-5 5 33000/19000,
30000/17321,
20000/11547,
13200/7620,
11000/6350
or others 		±2×2.5%
or others 		120-240,
240-480,
250-500
or others 		29 95 860 430 510 340 286 15 92
D11-10 10 46 121 910 470 550 380 22 150
D11-15 15 58 215 970 500 580 410 30 210
D11-25 25 82 295 1025 550 630 450 45 258
D11-37.5 37.5 110 400 1225 630 680 520 50 340
D11-50 50 140 490 1235 630 680 520 62 395
D11-75 75 275 670 1300 680 720 550 591 88 480
D11-100 100 300 881 1350 780 810 610 94 530
D11-167 167 350 1400 1460 830 890 660 138 680
D11-250 250 650 2530 1570 960 950 660 250 990
D11-333 333 700 3500 1660 960 960 660 300 1160

Note: The above data are typical values andare for reference only. Customized products are supplied upon request.

Table 2: DH15 Series with Amorphous Metal Core for Foreign Area
Model Rated
power
(kVA) 		HV ratings
(V) 		Tapping
range (%) 		LV ratings
(V) 		Loss (W) Dimensions (mm) Weighy(kg)
No-load
loss 		Full-load
loss 		A B C D E Oil Total
DH15-5 5 33000/19000,
30000/17321,
20000/11547,
13200/7620,
11000/6350
or others 		±2×2.5%
or others 		120-240,
240-480,
250-500
or others 		7 103 840 400 480 310 286 17 75
DH15-10 10 10 180 864 430 510 340 24 100
DH15-15 15 14 210 914 430 510 340 26 125
DH15-25 25 18.5 320 1041 480 560 380 33 162
DH15-37.5 37.5 24 500 1120 520 610 450 54 240
DH15-50 50 95 375 1245 520 610 450 62 295
DH15-75 75 135 580 1245 600 680 510 591 78 420
DH15-100 100 154 960 1270 640 710 510 89 465
DH15-167 167 176 1460 1470 940 840 610 140 650
DH15-250 250 220 1900 1560 1260 960 660 250 950
DH15-333 333 260 2600 1660 1260 960 660 300 1200

Note: The above data are typical valuesand are for reference only. Customized products are supplied upon request.

Table 3: D11 Series with CRGO Core for Domestic Area
Model Rated
power
(kVA) 		HV ratings
(V) 		Tapping
range (%) 		LV ratings
(V) 		Loss (W) Dimensions (mm) Weight(kg)
No-load
loss 		Full-load
loss 		A B C D E Oil Total
D11-5 5 10000 0,
or
±2×2.5%,
or
±5% 		220-230
or 440-460 		35 145 790 440 530 330 286 22 80
D11-10 10 55 260 820 440 530 330 25 100
D11-16 16 65 365 870 440 530 330 30 125
D11-20 20 80 430 870 470 560 360 35 140
D11-30 30 100 625 1060 610 610 410 65 205
D11-40 40 125 775 1060 660 660 460 70 250
D11-50 50 150 950 1080 760 660 460 591 80 280
D11-63 63 180 1125 1110 860 660 460 80 320
D11-80 80 200 1400 1180 895 690 496 95 380
D11-100 100 240 1650 1230 935 690 496 105 435
D11-125 125 285 1950 1280 960 720 524 120 510
D11-160 160 365 2365 1340 1160 760 560 150 615

Note: The above data are typical valuesand are for reference only. Customized products are supplied upon request.

Table 4: DH15 Series with Amorphous Metal Core for Domestic Area
Model Rated
power
(kVA) 		HV ratings
(V) 		Tapping
range (%) 		LV ratings
(V) 		Loss (W) Dimensions (mm) Weight(kg)
No-load
loss 		Full-load
loss 		A B C D E Oil Total
DH15-5 5 10000 0,
or
±2×2.5%,
or ±5% 		220-230
or
440-460 		15 145 790 440 530 330 286 20 80
DH15-10 10 18 260 820 440 530 330 22 100
DH15-16 16 22 365 870 470 560 360 30 130
DH15-20 20 25 430 870 470 560 360 35 145
DH15-30 30 30 625 1060 610 610 410 60 220
DH15-40 40 35 775 1060 660 660 460 70 250
DH15-50 50 40 950 1080 796 696 496 80 280
DH15-63 63 50 1135 1110 896 696 496 591 90 370
DH15-80 80 60 1400 1180 924 724 524 100 415
DH15-100 100 70 1650 1230 1000 760 560 110 485
DH15-125 125 85 1950 1280 1050 810 610 120 510
DH15-160 160 100 2365 1340 1260 860 660 210 765

Note: The above data are typical valuesand are for reference only. Customized products are supplied upon request.

Related Names
Electrical Power Transformer | Electricity Supply Transformer | Utility Pole Transformer

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