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S11-New Energy-Saving Three-Dimensional Coil Iron Core Immersed Transformer
Product description
S11 series coil core distribution transformers have low losses and the load losses are the same as the new S11 stacked core distribution transformers. Compared with GB/T6415-20081, its no-load losshas been reduced by an average of 50%. The main materials consume less and are lightweight. The no-load current is small, and the magnetic flux is completely arranged along the lattice direction of the cold-rolled silicon steel sheet. The noise is low, which is about 3-5 dB lower than the standard value of JBJ10088-2004. Strong short-circuit resistance and high reliability. The clamp mainly serves to tighten the winding, and the iron yoke insulation is combined with the trapezoidal cushion block to evenly compress the body of the device.
Iron core:Made of 30Q120 cold-rolled silicon stel sheet. The three-phase column has an inner and outer frame rlled structure, and the core column has a multi-stage stepped cylindrical cross-section. The iron core is formed by vacum annealing after being rolled. The tension screw of the upper and lower clamps tightens the body of the tensioner. The surface of the iron core is coated with epoxy resin to ensure that the iron core does not deform or rust.
Vinding and body: The low-voltage winding is a four layer (or double-layer)cylindrical type with 1-6 wires wound in parallel, using paper wrapped flat copper wire. The high-voltage winding is a multi-layer cylindrical type with good impact distribution, and high-strength formaldehyde enameled round copper wire is used. The coil is directly wound on a rotating mold composed of a toothed wheel and a soft paper tube, which is stuck on the iron core column. The iron yoke insulation is integrated with the trapezoidal cushion block to evenly compress the body of the device. Adopting a new type of suspension plate positioning structure, longitudinal and transverse positioning ensures the stability and non displacement o the device body. Oil tank:Mainly corrugated oil tank. It can also be designed as a rectangular plate radiator tank.
Model and Meaning
Product features:(Compared to traditional stacked iron core transformers)
Low loss
Due to the characteristics of small seamless magnetic resistance,consistent magnetic direction between the corner magnetic circuitand the silicon steel sheet,tight winding and high filing coeficient,and light weight of the core,the three-dimensional coiliron core il immersed transformer has advantages.Compared with traditional stacked iron core oilimmersed transformers,it can reduce no-load losses by 18%to 28%.The no-load current decreases by 50%to 60%.Significant energy-saving effect and economical operation.
Low noise
The noise level of the three-dimensional coil core oil immersed transformer is 5-10 decibels lower than that of the stacked core oil immersed transformer.It is an ideal silent product.
High mechanical strength
The three-dimensional coiliron core adopts a circular iron core cross-section,which has better short-circuit resistance than a long circular cross-section.And the cushion block has a high coverage rate and good fastening effect,greatly improving the product's short-circuit resistance.
S11 Three dimensional coil iron core immersed transformertechnical parameter
| Rated capacity (KVA) | Voltage combination (KV) | No load loss (KW) | Load loss (KW) | No load current (%) | Short -circuit impedance (%) | Weight(kg) | Track gauge AXB (mm) | External Dimensions(mm) L(length)xB(width)xH(height) |
|||||
| high voltage (KV) | High voltage tapping range | Low voltage (KV) | Connection group Label | Body weight | Oil weight | Total weight | |||||||
| 30 | 11;
10.5 10; 6.6; 6.3; 6 |
±5%
or ±2 ×2.5% |
0.4 | Dyn11; Yzn11; Yyn0 |
100 | 630/ 600 | 0.33 | 4.0 | 167 | 107 | 358 | 380x550 | 1010×667x1159 |
| 50 | 130 | 910/ 870 | 0.30 | 222 | 113 | 423 | 380x550 | 1025×683x1224 | |||||
| 80 | 180 | 1310/ 1250 | 0.27 | 278 | 153 | 525 | 380×550 | 1114×727x1314 | |||||
| 100 | 200 | 1580/ 1500 | 0.26 | 278 | 149 | 554 | 380×550 | 1148×995x1314 | |||||
| 160 | 280 | 2310/ 2200 | 0.24 | 439 | 168 | 746 | 400x660 | 1045×905×1376 | |||||
| 200 | 340 | 2730/ 2600 | 0.23 | 509 | 197 | 856 | 400×660 | 1091×944x1394 | |||||
| 250 | 400 | 3200/ 3050 | 0.22 | 591 | 228 | 986 | 400×660 | 1114×965×1397 | |||||
| 315 | 480 | 3830/ 3650 | 0.21 | 679 | 252 | 1124 | 550×820 | 1190×1031x1422 | |||||
| 400 | 570 | 4520/ 4300 | 0.21 | 818 | 303 | 1340 | 550×820 | 1225x1060×1477 | |||||
| 500 | 680 | 5140/ 5100 | 0.20 | 4.5 | 964 | 375 | 1618 | 550×820 | 1394x1207×1562 | ||||
| 630 | 810 | 6200 | 0.20 | 1128 | 417 | 1939 | 550×820 | 1467×1270×1594 | |||||
| 800 | 980 | 7500 | 0.19 | 1424 | 526 | 2417 | 550×820 | 1570×1360×1636 | |||||
| 1000 | 1150 | 10300 | 0.18 | 1660 | 645 | 2955 | 550x1070 | 1731x1510x1656 | |||||
| 1250 | 1360 | 12000 | 0.17 | 1802 | 630 | 3135 | 550×1070 | 1761×1525×1768 | |||||
| 1600 | 1640 | 14500 | 0.16 | 2255 | 781 | 3784 | 550x1070 | 1740×1510×1928 | |||||
| 2000 | 2250 | 18500 | 0.15 | 3166 | 1239 | 5637 | 660×1300 | 1836x1699x1863 | |||||
| 2500 | 2400 | 24000 | 0.15 | 3158 | 1541 | 6089 | 660×1300 | 1856x1762×2088 | |||||