Product Description
\ FEATURES \
| 1. Strong corrosion resistance. KKSG series dry-type transformer shell is welded and formed by high-quality section steel and cold-rolled steel plate, which has high mechanical strength, The shell adopts a sandblasting process to remove the embroidery layer on the surface, and the shell spraying five-proof paint has good anti-corrosion ability. |
| 2. Safe and reliable. KKSG series dry-type power transformers for mining use are flame retardant, fireproof, can be directly installed in the load center, to meet the requirements of the underground use environment of the mine, the use of natural ventilation and automatic control fan device for forced air cooling, effectively control the transformer operating temperature, to ensure the safe operation of the equipment. |
| 3. Energy saving and good for environmental protection. KKSG series dry-type transformers produce less pollutant, lower loss, lower partial discharge, lower noise, and have stronger heat dissipation capacity. |
| 4. The product performance parameters of the KKSG series are better than the national standard. |
| 5. Maintenance-free, convenient installation, low comprehensive operating cost. |
| 6. Strong seismic resistance. |
Detailed Photos
Product Parameters
| KKSG-50~1600 |
| Rated High Voltage:6,6 . 3,10,10 . 5KV Tapping Range:±2×2.5% |
| Nominal Low-voltage:1.2kV,0.69kV,0.4kV Geolevel: L75AC35LOAC3 |
| Model No. |
Impedance |
Air loss
(W) |
Load loss
(W) |
No-load current% |
SIZE
L*B*H(mm) |
Outer packing size
(L*B*H(mm)) |
Gauge m*n |
Total mass with outer packaging(KG) |
| KKSG-50 |
4% |
270 |
1000 |
2.00 |
880×720×750 |
1300×1300×1300 |
550 |
890 |
| KKSG-100 |
4% |
400 |
1570 |
1.50 |
940×755×820 |
1350×1300×1300 |
550 |
970 |
| KKSG-180 |
4% |
540 |
2130 |
1.3 |
990*820*925 |
1400×1300×1400 |
550 |
1180 |
| KKSG-200 |
4% |
620 |
2530 |
1.1 |
1005×930×953 |
1400×1350×1450 |
550 |
1270 |
| KKSG-250 |
4% |
720 |
2760 |
1.1 |
1035×860*907 |
1450×1350×1450 |
550 |
1380 |
| KKSG-315 |
4% |
880 |
3470 |
1 |
1035×870×905 |
1450×1350×1450 |
660 |
1490 |
| KKSG-400 |
4% |
980 |
3990 |
1 |
1100×874×1026 |
1500×1400×1500 |
660 |
1720 |
| KKSG-500 |
4% |
1160 |
4880 |
1 |
1155×890×1003 |
1600×1400×1500 |
660 |
1980 |
| KKSG-630 |
4%/6% |
1300 |
5960 |
0.85 |
1290×1020×936 |
1700×1400×1500 |
820 |
2170 |
| KKSG-800 |
6% |
1520 |
6960 |
0.85 |
1360×1020×996 |
1750×1450×1500 |
820 |
2530 |
| KKSG-1000 |
6% |
1770 |
8130 |
0.85 |
1400×1020×1076 |
1800×1500×1600 |
820 |
2940 |
| KKSG-1250 |
6% |
2090 |
9690 |
0.85 |
1450×1020×1161 |
1850×1500×1700 |
820 |
3320 |
| KKSG-1600 |
6% |
2450 |
11730 |
0.85 |
1500×1035×1228 |
1900×1550×1750 |
820 |
3860 |
Certifications
\ CERTIFICATED & QUALIFIED \
KKSG general dry-type power transformers for mining use have conformed to GB12173-2008, GB1094.11-2007, GB/T10228-2015, JB/T3955-2016, GB4208-2017 and other national standards and industry standards, and are suitable for power supply and distribution equipment under mines without methane, coal dust, and other explosion hazards: mainly used for iron ore and copper time. Gold mine. Aluminum ore, stone ore, rock ore, metal and non-metal mines, highways, railways, tunnels, etc. KKSG series dry-type power transformers for mining also won the ISO-9001, ISO-45001, and ISO-14001 certificates.
Installation Instructions
\ CONDITION OF USE \
1. The installation site should avoid being flooded, the altitude should not exceed 1000m, the ambient temperature is not higher than 40C, the relative humidity is 100%, and the environment is 40C to -25C (-25C needs to have the requirements of load switch and temperature controller).
2. The installation site should be clean without conductive dust, no corrosive gas, and with good ventilation or artificial ventilation conditions.
3. Generally, 300mm away from the wall and other obstacles, there should be a 300mm distance between adjacent variable instruments: the distance above the distribution box and other places with limited installation space can be adjusted appropriately.
4. The waveform of the power supply voltage is similar to the forward spiral wave.
5. The three-phase power supply voltage is approximately symmetrical.
\ DESIGN & MANUFACTURE PROCESS \
Based on more than 30 years of design, manufacturing, and experimental experience in the transformer industry, CEEG has developed a set of advanced three-dimensional + parametric design software, which can realize automatic design, cost optimization, and simulation.
Fully considering the requirements of the national and industrial standards, ensuring the advantageous design of products.
The high-voltage winding conductor is wound with a high-quality conductor and reinforced with long and short-cut glass fiber felt. Poured by the advanced Heidrich vacuum pouring system under vacuum. Effectively restrain the occurrence of partial discharge, and the partial discharge is ≤ 5pc.
The low-voltage winding adopts a high-quality foil conductor and is wound on an automatic foil winding machine. The foil winding machine adopts the patented technology of foil wire hydraulic energy-saving tension crimping device, high-precision detection of ±0.5mm, and advanced argon arc welding technology, which plays a key role in ensuring the quality of coil winding.
The iron core adopts a high-quality high magnetic conductivity-oriented silicon steel sheet, a 45° full oblique step lapping process, and the surface adopts special moisture-proof and rust-proof coating, which effectively reduces the no-load current and noise level.
\ TESTING \
All products strictly control the production process and quality links, and conduct strict tests and inspections according to national standards and customized requirements before leaving the factory, including partial discharge inspection, lightning resistance and electric shock inspection, noise inspection, and other necessary inspection items. Advanced test and detection equipment and a perfect inspection and detection system ensure the high quality and high quality of products.
\ USE & PACKING \
SERVICE CONDITIONS -
The installation site shall not be flooded by water, the altitude shall not exceed 1000m, and the ambient temperature shall not be higher than 40ºC. The relative humidity is 100%, and the environment is 40ºC to -25ºC (-25ºC requires an on-load tap changer and temperature controller).
PACKAGING & TRANSPORTATION - The products can be partially disassembled and transported (such as on-load tap changer, temperature controller, air cooling device, enclosure, etc. can be packaged separately) or packed as one piece in packaging boxes for transportation.
VISUAL INSPECTION BEFORE INSTALLATION - After opening the package, remove the protective device and check the external conditions, especially paying attention to the mechanical integrity of the coil and iron core, and the bolt fastening at the connection.
INSPECTION BEFORE OPERATION - Measure the DC resistance of high voltage and low voltage windings. Then check the grounding of the iron core to see whether the grounding is reliable and whether foreign matters are overlapping. Last to test the insulation resistance.
ENERGIZING - Before putting into operation, the transformer shall be put into trial operation under no-load, and the protection system shall be checked and adjusted after 3 times of impulse closing.
\ ABOUT CEEG \
3 INDUSTRIAL ZONES
4 FACTORIES
15 OVERSEAS BRANCHES
80+ GLOBAL MARKETS
THIS IS OUR DEVELOPMENT -
Headquartered in Nanjing, CEEG has always been adhering to the core values of "foresight, innovation, and responsibility" since its establishment in 1990, focusing on production and manufacturing for more than 30 years. In years of development, CEEG has Integrated independent research and development, intelligent manufacturing, and smart marketing services.
OUR PARTNERS - Our products have been safely operating in major coal groups such as Shenhua Group, Anhui Tongling Mining Group, Pingdingshan Coal Industry Group, Jincheng Coal Industry Group, and Kaolain Group. Many well-known companies such as China Mobile, China Telecom, Inner Mongolia First Machinery, Inner Mongolia Pingzhuang Energy, and Jialing Motor also have established good partnerships with us. We also established long-term strategic cooperative relations with excellent enterprises all over the world, and our business partners include many great companies such as DuPont, Siemens, Hitachi Metals, and ABB. Our power transformers have been sold to over 80 countries and regions and got high recognition from customers overseas.
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