About
our company
Tianjin Kechang International Trade Co.,Ltd. is a comprehensive power service company integrating R&D, design, manufacturing, sales, and after-sales service. Its main products include energy-saving power transformers (oil-immersed transformer and dry-type transformer), amorphous alloy transformers, underground compact transformer substations, compact transformer substations, high- and low-voltage switchgear, ring main units, vacuum circuit breakers, and distribution boxes. These products are widely used in power transmission and distribution systems in substations, transportation, mining, metallurgy, construction, petrochemicals, chemicals, railways, subways, urban light rail, communications, and urban and rural power grid construction and renovation. These products are highly sought after for their energy efficiency and durability, and are exported to Central Asia, Southeast Asia, the Middle East, South Africa, South America, and Europe.
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WHY
CHOOSE US
We provide customized adaptation solutions and leverage technological iteration to help customers reduce costs and increase efficiency.
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Professional ability and rich experienceWe have a strong team and advanced technical strength. Providing customers with high-quality services is our core mission.
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Good reputation and word of mouthWe have always adhered to the principle of honest operation and won the trust and praise of our customers.
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High-quality service and comprehensive supportWe provide a full range of service support, including pre-sales consultation, technical support and after-sales service.
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Innovative spirit and sustainable developmentWe focus on technological innovation and research and development, and constantly innovate to meet the ever-changing market and customer needs.
PRODUCTSCATEGORIES
Safe and stable operation for 30 years
Our products are accepted and certified by Schneider Electric, have safe type test reports and safety interlocks, are able to operate stably in extreme environments and have very low maintenance rates (maintenance-free), and load losses are well below the average of their peers.
Our hot sale products
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![Electrical Vacuum Breaker]( "Electrical Vacuum Breaker")
Electrical Vacuum BreakerRated Voltage:10KV 35KV 66KV
Rated Current:630A 1250A 2000A
Rated Breaking Capacity:25kA 31.5kA 40kA
Operation... -
![220kV Oil-immersed Power Transformers]( "220kV Oil-immersed Power Transformers")
220kV Oil-immersed Power TransformersRated Voltage:220KV
Low Voltage:35KV 10KV 6.3KV
Rated Capacity:16000kVA 20000kVA 25000kVA 31500kVA 40000kVA
Connection Vector... -
![Prefabricated Compact Transformer Substation]( "Prefabricated Compact Transformer Substation")
Prefabricated Compact Transformer SubstationSchneider Strategic Partners
Smartgrid Solutions
Can come to the drawing customization
Reservable for installation of transformers and... -
![12kv indoor Ring Main Unit-reliable Indoor Power Distribution Choice]( "12kv indoor Ring Main Unit-reliable Indoor Power Distribution Choice")
12kv indoor Ring Main Unit-reliable Indoor Power Distribution ChoiceRated Voltage:10kV 35kV
Rated Current:630A 1250A
Short-Circuit Breaking Capacity:25kA 31.5kA
Protection Level:IP44 IP54
Insulation... -
![Portable Power Distribution Unit]( "Portable Power Distribution Unit")
Portable Power Distribution UnitRated Voltage:400V
Rated Current:100A 250A 400A
Protection Level:IP54 IP65
Number of Output Circuits:4 6 8
Short-Circuit Withstand... -
![110kV Oil-immersed Power Transformers]( "110kV Oil-immersed Power Transformers")
110kV Oil-immersed Power Transformers•Model: S11 / S13 / S20 / S22
•Rated Capacity: 30–60000 kVA
•Voltage Rating: 220kV 110kV /6.3kV 10kV 35kV
•Cooling Method: ONAN /... -
![Three Phase Oil Immersed Transformer]( "Three Phase Oil Immersed Transformer")
Three Phase Oil Immersed TransformerThe winding material is copper or aluminum
Cooling option
It has a patent for noise reduction, which is 20% lower than its peers
Fully... -
![Distribution Dry Type Transformers]( "Distribution Dry Type Transformers")
Distribution Dry Type TransformersOver 100,000 hours of average trouble-free operation
Load Loss Optimized 10%~15%
Built-in all kinds of sensors for remote...
Latest news and events
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![How To Select Power Distribution Transformers]()
Apr 29, 2026How To Select Power Distribution TransformersPower Distribution transformer In the modern power system, the Power Distribution Transformer plays a vital role. It is the "last kilometer" hub co...view more -
![AI Computing Power Infrastructure Global Power Grab Craze Strikes Tianjin Kechang Electric Brings...]()
Apr 24, 2026AI Computing Power Infrastructure Global Power Grab Craze Strikes Tianjin Kechang Electric Brings...At present, the global AI industry has entered a stage of explosive growth. Technology giants such as Microsoft and Google are accelerating the layout of ult...view more -
![One Hundred Days After The EU “Fluorine Ban” Order Came Into Force: Tianjin Kechang Electric Has ...]()
Apr 21, 2026One Hundred Days After The EU “Fluorine Ban” Order Came Into Force: Tianjin Kechang Electric Has ...With the official implementation of the new version of the European Union's "Fluorine-Containing Gas Regulations" (F-Gas) in January 2026, the use of sulfur ...view more
