CEEG Dry-Type Mining Transformers KKSG Series Power Transformer

CEEG Dry-Type Mining Transformers KKSG Series Power Transformer-mdxj.jpg

Product Description

Mining dry-type transformers comply with national and industry standards such as GB12173-2008, GB1094.11-2007, GB/T10228-2015, JB/T3955-2016, and GB4208-2017. Suitable for mines without explosion hazards such as methane and coal dust; mainly used in metal and non-metal mines as well as roads, railways, tunnels, and other places.

Product Features

1. The KKSG transformer shell is welded and formed from high-quality steel and cold-rolled steel plates with high mechanical strength. The shell uses sandblasting technology to remove the rust layer on the surface, and the shell is sprayed with five-proof paint, which has good anti-corrosion capabilities.

2. The transformer meets the requirements of the underground mine environment. Natural ventilation and automatic control fan devices are used for forced air cooling to effectively control the transformer's operating temperature and ensure the equipment's safe operation.

3. Low loss, low partial discharge, low noise, and strong heat dissipation capability.

Safe, flame retardant, fireproof, non-polluting, and can be installed directly in the load center.

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KKSG-50~1600 Mine-Duty Transformers
Rated high voltage：6, 6.3, 10, 10.5kV
Rated low voltage：1.2kV, 0.69kV, 0.4kV
*Tapping Range：±22.5% etc.**
Insulation Level：LI75 AC35/LI0 AC3
Model	UK	No-Load loss（W）	Load Loss（W）	No-Load Current（%）	Gauge (mm)
KKSG-50	4%	270	1000	2	550
KKSG-100	4%	400	1570	1.5	550
KKSG-160	4%	540	2130	1.3	550
KKSG-200	4%	620	2530	1.1	550
KKSG-250	4%	720	2760	1.1	550
KKSG-315	4%	880	3470	1	660
KKSG-400	4%	980	3990	1	660
KKSG-500	4%	1160	4880	1	660
KKSG-630	4% / 6%	1300	5960	0.85	820
KKSG-800	6%	1520	6960	0.85	820
KKSG-1000	6%	1770	8130	0.85	820
KKSG-1250	6%	2090	9690	0.85	820
KKSG-1600	6%	2450	11730	0.85	820

High voltage coil manufacturing process

The high-voltage winding conductor is meticulously crafted using high-quality materials and reinforced with long and short-cut fiberglass mats. It is cast within a vacuum using the world's most advanced Heidrich vacuum casting system. This process effectively suppresses the occurrence of partial discharge, with partial discharge levels ≤ 5PC.

Low voltage coil manufacturing process

The low-voltage winding adopts a high-quality foil conductor and is wound on an automatic foil winding machine. This winding machine utilizes patented technology for "foil wire hydraulic energy-saving tension coiling devices," ±0.5mm high-precision detection, and advanced argon arc welding techniques, all of which play a critical role in ensuring the quality of coil winding.

Iron Core manufacturing process:

The iron core is crafted from high-quality, highly permeable oriented silicon steel sheets using a 45 ° full oblique step lapping process. Its surface is coated with a special moisture-resistant and rust-resistant coating, effectively reducing no-load loss, no-load current, and noise levels.

Advanced Testing and Inspection Facilities:

All products strictly control the production process and quality links, and conduct strict tests and inspections according to national standards and customer-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 high-quality products.

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