Three Phase Distribution Transformers

Three Phase Distribution Transformers


The Three Phase Distribution Transformers are available ranging from 10 KVA to 5000 KVA can be free breathing or hermetically sealed. Hermetically sealed transformers are totally maintenance free and are particularly suited for use in exposed outdoor environments such as moisture, salt or dust laden atmospheres. They are used extensively in chemical plants, oil and gas terminals where poor accessibility makes regular maintenance undesirable.

Transformers immersed in synthetic coolants are suitable for indoor use, with adequate ventilation, or near to the load centre where oil would not be considered environmentally acceptable. The liquid filled transformers can be supplied with cooling either by corrugations on the side of the tank or Pressed steel radiators mounted on tank body. These transformers conforms to IEC (International Electro technical Commission), ANSI (American National Standard Institution), BS (British Standards), IS (Indian Standard).

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Rated Primary Voltage : 11KV Secondary Voltage : 416/240V ONAN Cooled, Outdoor type, Oil immersed Copper Wound, Open Type with Conservator
Capacity
kVA
Efficiency at 100%
load (%)
Voltage Regulation P.F.= 1 (%) Noise Level
db (A)
: 1m
Outline Dimension Approx.(mm) Oil qty (Liters) Total weight (Kgs.)
P.F.=1.0 P.F.=0.8 H L W
50 97.48 96.85 2.26 45 1300 1080 520 115 420
100 97.71 97.14 2.06 46 1400 1230 550 150 600
160 98.19 97.73 1.63 47 1480 1290 630 210 825
200 98.30 97.88 1.52 47 1580 1340 675 260 990
250 98.32 97.90 1.51 48 1655 1385 750 320 1200
315 98.33 97.92 1.50 50 1735 1385 830 360 1400
400 98.44 98.05 1.42 50 1800 1410 950 370 1600
500 98.50 98.13 1.37 52 1850 1520 1000 450 1920
630 98.62 98.27 1.31 52 1920 1620 1030 530 2230
800 98.56 98.20 1.37 54 2000 1830 1030 675 2700
1000 98.63 98.29 1.32 54 2100 2040 1040 780 3160
1250 98.72 98.40 1.29 56 2140 2070 1210 840 3400
1500 98.78 98.48 1.24 56 2240 2150 1240 970 3900
2000 98.81 98.51 1.22 52/3cm 2350 2230 1390 1080 4625
2500 98.88 98.60 1.18 52/3cm 2480 2300 1420 1375 5700
3000 98.92 98.65 1.14 52/3cm 2570 2380 1450 1530 6330

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