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S11-M S9-M Series Oil-immersed Hermetically-sealed Transformers

S11-M S9-M Series Oil-immersed Hermetically-sealed Transformers

PRODUCT OVERVIEW

The Hermetically-sealed transformer is the transformer of which inner tank is totally isolated from the outside atmosphere. Its volume changes with shrinkage and expansion of the corrugated tank sides. Moisture and oxygen can not enter the tank from outside, thus slowing down the aging of the insulating material It doesn't need core-lifting check before operation or maintenance after putting into operation, which greaily improves the reliability of transformer.

It adopts PCCAD as its design software, and meets IEC60076, GB1094 standard, and has passed the IS09001 quality system certification. The coil, wound by high intensiry enameled wire (or paper wrapped) with cylinder (or disc) structure and Ampere-Turn balance, reasonable insulation structure have a good short-circuit withstand capacity. The fastening parts are locknuts.

Even after long-distance transportation, they are not loose. All sealing material is made of high quality acrylic rubbery which can effectively prevent against light-aging, electricity aging and heat aging. It is equipped with "remote sensor" signal thermometer and pressure relief valves to enhance the reliability of transformers.

MAIN FUNCTIONS AND CHARACTERS

Without such device like conservator and air breather, it ensures that the transformer oil is not iri contact with air. So commonly, the transformers can be used continuously for 20 years without any particular treatment.

Excellent rubber is adopted in the sealing parts.

Vacuum oil-filing process is used.

RANGE OF APPLICATION

It can be widely used in urban power network as well as petrochemical, metallurgical, textile and humid, inaccessible enterpnses, and mining.

S9-M Series Three-phase Double-winding Distribution Transformers with Off-circuit Tap Changer

Rated capacity(kVA) Voltage ratio(kV) Connection Symbol Loss(W) No-load current(%) lmpedance(%) Weight(kg) Outline Dimension(mm) Gauge(mm)
H.V L.V No-load Loss Full-load Loss Oil weight Total Weight L W H
30

6

6.3

10

10.5

11

±5%

or

±2

x2.5%

0.4

Yyn0

Dyn11

130 600 2.1 4 70 295 835 555 915 400x400
50 170 870 2.0 85 390 890 630 945 400x400
63 200 1040 1.9 90 430 860 720 980 400x400
80 240 1250 1.9 115 500 890 730 1015 400x400
100 290 1500 1.8 120 555 910 740 1030 400x400
125 340 1800 1.7 130 660 935 740 1090 550x550
160 400 2200 1.6 155 780 970 745 1135 550x550
200 480 2600 1.5 175 900 1005 795 1185 550x550
250 560 3050 1.4 200 1060 1040 830 1210 550x550
315 670 3650 1.4 230 1240 1430 840 1280 550x550
400 800 4300 1.3 265 1440 1470 860 1325 660x660
500 960 5100 1.2 305 1740 1550 900 1430 660x660
630 1200 6200 1.1 4.5 410 2180 1665 940 1480 660x660
800 1400 7500 1.0 470 2560 1750 1005 1560 820x820
1000 1700 10300 1.0 470 2745 1785 1025 1715 820x820
1250 1950 12000 0.9 600 3540 1970 1170 1745 820x820
1600 2400 14500 0.8 660 4160 2015 1190 1810 820x820

S11-M series three-phase double-winding distribution transformers with off-circuit tap changer

Rated capacity(kVA) Voltage ratio(kV) Connection Symbol Loss(W) No-load current(%) lmpedance(%) Weight(kg) Outline Dimension(mm) Gauge(mm)
H.V L.V No-load Loss Full-load Loss Oil weight Total Weight L W H
30

6

6.3

10

10.5

11

±5%

or

±2

x2.5%

0.4

Yyn0

Dyn11

100 630/600 2.3 4 60 265 750 560 870 400x400
50 130 910/870 2 85 350 780 560 880 400x400
63 150 1090/1040 1.9 95 410 800 570 910 400x400
80 180 1310/1250 1.9 100 460 820 580 940 400x400
100 200 1580/1500 1.8 110 515 860 600 960 400x400
125 240 1890/1800 1.7 120 600 880 650 1040 550x550
160 280 2310/2200 1.6 130 660 900 700 1100 550x550
200 340 2730/2600 1.5 150 770 1070 730 1150 550x550
250 400 3200/3050 1.4 175 905 1170 780 1170 550x550
315 480 3830/3650 1.4 200 1030 1320 840 1190 550x550
400 570 4520/4300 1.3 225 1235 1360 870 1220 660x660
500 680 5410/5150 1.2 280 1470 1480 950 1250 660x660
630 810 6200 1.1 4.5 325 1805 1560 990 1290 660x660
800 980 7500 1 370 2120 1660 1070 1350 820x820
1000 1150 10300 1 470 2390 1730 1150 1480 820x820
1250 1360 12000 0.9 520 2900 1850 1350 1550 820x820
1600 1640 14500 0.8 610 3600 2000 1400 1600 820x820

Note:For transformers with the capacity of 50OkVAand below,values of load loss above the slash of the table apply to Dyoll connection,and values of load loss below the slash apply to Yyn0 connection.

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