Form1 10kV S11-M-ZT type intelligent load adjustable-capacity transformer Specification
| Type | Voltage | Vector Group | Non-load loss | Load loss | Short circuit impedance | Non-oad current |
| S11-M-ZT-160(50) | 10/0.4> | Dyn11 Yyn0 |
280(130) | 2310(870) | 4.0 | 0.8 (1.6) |
| S11-M-ZT-200(63) | 340(150) | 2730(1040) | 4.0 | 0.7 (1.5) | ||
| S11-M-ZT-250(80) | 400(180) | 3200(1250) | 4.0 | 0.7 (1.4) | ||
| S11-M-ZT-315(100) | 480(200) | 3830(1500) | 4.0 | 0.7 (1.4) | ||
| S11-M-ZT-400(125) | 570(240) | 4520(1800) | 4.0 | 0.6 (1.3) | ||
| S11-M-ZT-500(160) | 680(280) | 5410(2200) | 4.0 | 0.6 (1.2) | ||
| S11-M-ZT-630(200) | 810(340) | 6200(2600) | 4.5 | 0.5 (1.1) |
The annual operation cost and investment recovery period C
y=[8600x(PO+0.05xloxSN/100)+2200x(Pk+0.05xUKxSN/100)]x0.5C
y: transformer annual operation cost RMB
Po: Non-load loss,kW
Pk: Load loss Kw
SN: Rated capacity kVA
UK: Short circuit impedance percent, %
lo: Non-load current, Percent %
T0.5 is electricity prices, RMB/(Kwh). 8600, 2200 Respectively are transformer non-load all year, equivalent load (load factor 0.5) Number of hours According to the related performance indicator, to calculated annual operation cost of the S11-M-ZT type intelligent load adjustable-capacity transformer and S11 Ordinary three-phase oiled type distribution transformer. Assume that the load capacitor transformer works in a large capacitor within 3 months of one year, and in a small capacitor within 9 months. According to the distribution transformer-related specification to calculate detailed data as form 3
The load adjustable-capacity transformer is adapted to the Substation field development towards energy saving, intelligence, high efficiency, and reliable
power supply quality. it can automatically change the terminal distribution transformer rated output capacity efficiency by following the load change. Timely and proper keeping of the power supply, greatly reduces the transformer non-load loss by 40%~50%, improves the grid power factor, reduces reactive components in distribution net and network loss and electricity capacitor, and opens a new way to develop an energy-saving distribution network, to the society to bring good economic benefit.
Form2 Compared opeartion cost between S11-M-ZT type intelligent load adjustable- capacity transformer and S11 type distribution transformer
| Capacity | Annual cost of load adjustable capacity transformer(Yuan) | Annual cost of ordinary transformer(Yuan) | Annual decreased cost(Yuan) | Annual Decreased rate(%) |
| 160(50) | 2289 | 4647 | 2358 | 51 |
| 200(63) | 2710 | 5550 | 2840 | 51 |
| 250(80) | 3227 | 6543 | 3316 | 51 |
| 315(100) | 3816 | 7918 | 4102 | 52 |
| 400(125) | 4588 | 9531 | 4943 | 52 |
| 500(160) | 5497 | 11265 | 5768 | 51 |
| 630(200) | 6608 | 133520 | 6744 | 51 |
Compared operation cost between S11-M-ZT type intelligent load adjustable-capacitytransformer and S11 type distribution transformer, Annual operation cost average re-duce 51%,cut down the installation fee than lashtransformer.The more investment ofS11-M-ZT type intelligent load adjustable-capacity transformer can recycle in threeyears.
Form 3 intelligent load adjustable-capacity transformer installation dimension and weight installation dimension(mm)
| Capacity(kVA) | Shape dimension(mm) | Weight(kg) | ||||
| L | B(Width) | H | L2 | (Width)B2 | ||
| 160(50) | 1380 | 990 | 1230 | 820 | 820 | 1100 |
| 200(63) | 1400 | 1070 | 1230 | 820 | 820 | 1220 |
| 250(80) | 1440 | 1120 | 1250 | 820 | 820 | 1370 |
| 315(100) | 1480 | 1170 | 1350 | 820 | 820 | 1620 |
| 400(125) | 1620 | 1190 | 1330 | 820 | 820 | 1910 |
| 500(160) | 1710 | 1240 | 1350 | 820 | 820 | 2200 |
| 630(200) | 1850 | 1270 | 1450 | 820 | 820 | 2660 |
