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S11-M.ZT-Intelligent on Load Capacity Regulating Transformer
Model and meaning
10kV S11-M.ZT Series intelligent on load capacity regulating transformer Technical parameters
| Type | Voltage combination (KV) | Linking groups | No load loss (W) | load loss (W) | Short-circuit impedance (%) | load 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) |
performance parameter
• Energy saving analysis;
• Annual operating costs and investment payback period;
• Cy=[8600x(P0+0.05xlox SN/100)+2200x(Pk+0.05xUKx SN/100)]×0.5,where;
• Cy is the annual operating cost of the transformer,in yuan;
• PO is the no-load loss,kW;
• Pk is the load loss,kW;
• SN is the rated capacity,KVA;
• Uk is the percentage of short-circuit impedance,%;
• lo is the percentage of no-load current,%;0.5 is the electricity price,yuan/(kWh);8600 and 2200 respectively represent the annual
no-load and equivalent full load (load factor 0.5)hours of transformers.
• According to the above equation and related performance indicators.
• Calculate the annual operating costs of S11-M-ZT series intelligent on load capacity adjustment distribution transformers and
• S11 type ordinary three-phase oil immersed distribution transformersCalculate.Assuming that the on load capacity regulating transformer operates in high capacity mode for three months in a year.9 months of small capacity operation,calculated based on the corresponding technical parameters of the distribution transformer,specific dataSee Table 3
• The on load capacity regulating transformer adapts to the development direction of energy conservation,intelligence,high efficiency,and stable power supply quality in the field of substation.It can automatically change the terminal distribution transformer by tracking load changes
• The rated output capacity of the voltage regulator ensures timely and appropriate power supply,greatly reducing the no-load loss of the transformer by about 40%~50%,which can improve the power factor of the power grid and reduce the power loss in the distribution networkMerit sharing Meng,reducing network losses,reducing power capacitor capacity,opens upa new path for the development of energy-saving distribution networks,and brings good economic benefits to society.
S11-M-ZT Series Comparison of Annual Operating Costs between Intelligent Capacity
Adjusting Distribution Transformers and S11 Distribution Transformers
Table 2
| Type | On load capacity adjustment distribution transformerAnnual operating cost(RMB) | Ordinary distribution transformerAnnual operating expenses(RMB) | Annual operating cost reduction amount(RMB) | Annual operating cost reduction amount(%) |
| 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 | 13352 | 6744 | 51 |
The S11-M-ZT series intelligent capacity regulating distribution transforme compare with a single S11 type distribution transformer,has an average annual operating cost reduction of about 51%,Compared with the sub main transformer,it also saves installation costs and space.The investment in the S11-M-ZT series intelligent capacity regulating distribution transformer can be recovered in about 3 years.
10kV intelligent on load capacity regulation distribution transformer Outline drawing
S11-M-ZT series Appearance installation and weight table of intelligent
Table 3
adjustable capacity distribution transformer
| Type | Dimensions(mm) | Installation dimensions(mm) | Weight(kg) | |||
| Length(L) | width(B) | height(H) | L2 | 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 |