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China S11-M-ZT On-Load Capacity-Changing Transformer - Energy-Saving Solution by Leading Suppliers and Factory
Reliable structure
◆ Based on the traditional structure and mature technology, our company has made many improvements, such as:
- Spiral coil with longitudinal oil channel for better internal heat dissipation;
- The effective support of the coil end face has been improved, and the ability to resist short-circuit current is stronger;
- The new hoisting structure and body positioning structure are adopted to ensure more reliability in long-distance transportation and operation;
- We also have many unique and reliable structures to serve you;
- Choosing a transformer with a higher performance level will have a higher level of technical content.
High-quality materials
- Use oxygen-free copper wire with lower resistivity, and after a series of additional surface treatment, it is smoother and has no burrs or sharp corners, which makes the load loss of the transformer lower and the electrical performance more reliable.
- Select high-quality silicon steel sheets. As the performance level improves, silicon steel sheets with lower unit loss are used to reduce the no-load loss of the transformer.
- Made of high-quality laminated wood insulation, it will never crack and will not move even under the action of short- circuit current.
- Use deep-filtered transformer oil with lower water, gas and impurity levels, making the transformer work more reliable.
- Use high-quality rubber sealing materials to effatively prevent aging and prevent leakage.
- All raw materials have undergone quality inspection to effatively prevent aging and prevent leakage.
- All raw materials have been quality inspected, and all raw material factories have been inspected according to national standards. ISO9000 strict scrutiny.
Good technical and economic performance
- This product can significantly reduce the transformer no-load loss by 50-60%
- Reduce reactive power loss of power grid by 20-30%
- If this technology is fully applied to rural power grids, it can save 10 billion kWh of electricity each year;
- Save 3 million tons of standard coal per year, equivalent to dry emission reduction CO 2500 Ten thousand tons.
- The project has been highly valued by the State Grid Corporation of China, included in the National 11th Five-Year Electricity Saving Plan undertaken by the National Electric Power Research Institute, and compiled into the power construction specifications in the new rural construction.
Fully sealed
◇ Select S11(M) R In M The oil tank adopts a fully sealed structure. Compared with ordinary oil-immersed transformers, the fully sealed distribution transformer eliminates the oil storage cabinet, and the corrugated fins of the oil tank replace the oil pipes. In order to cool the heat dissipation components, the corrugated oil tank is made of high-quality cold-rolled thin plates on a special production line. The corrugated fins can adjust the expansion and contraction of the transformer oil, thereby isolating the transformer from the atmosphere, preventing and slowing down oil deterioration and insulation moisture, enhancing operational reliability, and ensuring maintenance-free normal operation.
◇ The surface of the corrugated oil tank is degreased, derusted, phosphated and then painted with three-proof paint. It is suitable for use in metallurgy, petrochemical, mining and other environments.
Transformer product standards
GB1094.1-1996
GB1094.2-1996
GB1094.3-2003
GB1094.1
GB1094.5-2003
JB/T10088-2004
GB/T10237-1988
GB-T6451-2008
GB-T7595-1987
JB/T 3837-1998
JB/T 10778-2007
Normal operating conditions of transformer
- Altitude not exceeding 1000m;
- Ambient temperature: maximum temperature +40℃; average temperature of the hottest month +30℃; maximum annual average temperature +20℃; minimum outdoor temperature -25℃.
Special conditions for use of transformers
- Altitude not exceeding 1000m;
- Ambient temperature: Maximum temperature +40℃; Minimum temperature -25℃.
Model meaning
S11-M-ZT Technical parameters of on-load capacity-adjusting transformer
| Rated capacity (KVA) | Voltage combination (kV) | Connection method | Loss (kW) | No-load current (%) | Impedance voltage (%) | Weight (Kg) | Dimensions (mm) (L * W * H) |
Gauge (Vert/Horiz) |
||||
| High pressure | Low pressure | No load | Load (75°C) | Heavy | Oil weight | Total weight | ||||||
| 630/200 | 10 10.5 11 |
0.4 | Yyn0 Dyn11 |
810(340) | 8030(3060) | 1.3(1.8) | 4.5 | 1455 | 600 | 2600 | 2040x1150x1470 | 820x820 |
| 500/160 | 680(280) | 6520(2600) | 1.4(1.9) | 4 | 1150 | 495 | 2130 | 1925x1090x1455 | 820x820 | |||
| 400/125 | 570(240) | 5480(213) | 1.5(2) | 970 | 415 | 1860 | 1870x1060x1450 | 820x820 | ||||
| 315/100 | 480(200) | 4540(1770) | 1.6(2.1) | 860 | 385 | 1540 | 1780x1005x1315 | 820x820 | ||||
| 250/80 | 400(180) | 3780(1480) | 1.7(2.2) | 680 | 340 | 1390 | 1705x980x1270 | 820x750 | ||||
| 200/63 | 340(150) | 3215(1230) | 1.8(2.4) | 585 | 310 | 1235 | 1685x960x1240 | 820x750 | ||||
| 160/50 | 280(130) | 2590(1030) | 1.9(2.5) | 505 | 290 | 1090 | 1650x940x1200 | 820x750 | ||||
| 100/30 | 200(100) | 1580(630) | 2.1(2.8) | 360 | 240 | 870 | 1540x885x1150 | 820x750 | ||||
Overall dimensions and installation dimensions
Frequently Asked Questions (FAQ)
Q
What structural improvements make this transformer more reliable?
Our transformers feature spiral coils with longitudinal oil channels for enhanced internal heat dissipation, improved coil end face support to resist short-circuit currents, and a specialized hoisting and positioning structure to ensure stability during transport.
Q
How does the fully sealed design benefit the transformer's operation?
The fully sealed structure eliminates the traditional oil storage cabinet, replacing oil pipes with corrugated fins that adjust to oil expansion and contraction. This isolates the oil from the atmosphere, preventing moisture ingress and oil deterioration, which ensures maintenance-free operation.
Q
What are the environmental and energy-saving benefits of this technology?
This technology reduces no-load loss by 50-60% and reactive power loss by 20-30%. When implemented in rural power grids, it can save up to 10 billion kWh of electricity and reduce standard coal consumption by 3 million tons annually.
Q
What materials are used to ensure the electrical performance of the transformer?
We use high-purity oxygen-free copper wire with low resistivity, high-grade silicon steel sheets to minimize no-load losses, laminated wood insulation to resist cracking under short-circuit stress, and deep-filtered transformer oil with minimal impurities.
Q
What are the standard operating conditions for these transformers?
The standard operating conditions require an altitude not exceeding 1000 meters. The ambient temperature range should be between a maximum of +40℃ and a minimum of -25℃, with a maximum annual average temperature of +20℃.
Q
Which national and industry standards do these transformers comply with?
Our products fully comply with several key standards, including GB1094.1, GB1094.2, GB1094.3, GB1094.5, JB/T10088, GB/T10237, GB-T6451, GB-T7595, JB/T 3837, and JB/T 10778.