The SG(B)10 dry-type transformer is a rugged, high-performance power device engineered for extreme and high-risk environments. As a non-encapsulated H-class dry-type power transformer, it is built to withstand harsh conditions like extreme temperatures, dust, and moisture— making it an extreme environment transformer for subways, mines, and chemical plants. Its robust construction prioritizes durability and reliability, ensuring operation even in settings where standard transformers would fail.
Unlike encapsulated dry-type transformers, the SG(B)10 features a non-encapsulated design that omits full resin coating of windings. This design enhances heat dissipation by allowing air to circulate directly around windings, while still providing protection against dust and debris. It also simplifies maintenance access to internal components, reducing downtime for repairs or inspections— a key advantage in high-risk environments where maintenance is often challenging.
The SG(B)10’s most critical feature is the H-class insulation system, which resists temperatures up to 180℃. This high thermal tolerance enables stable operation in high-heat environments like mines, subways, or chemical plants, where ambient temperatures can exceed standard limits. The insulation materials also offer excellent dielectric strength, ensuring reliable performance under electrical stress.
For environmental adaptability, the transformer operates reliably across a wide temperature range (from extreme low to high), making it suitable for outdoor or unconditioned indoor spaces like subway tunnels. It also has an IP20 dustproof rating to block mine or tunnel dust from entering internal components, preventing clogging and performance degradation. This dust resistance is critical for maintaining efficiency in dusty industrial settings.
The SG(B)10 adheres to environmentally friendly standards with halogen-free insulation materials. During combustion, these materials release no toxic gases, aligning with EU environmental regulations and ensuring safety for workers and nearby communities. The absence of halogens also reduces environmental impact, making it a sustainable choice for high-risk industries.
A standout feature is the optional fiber optic temperature measurement system, which provides real-time monitoring of winding hot spot temperatures. Unlike traditional sensors, fiber optic technology resists electromagnetic interference (common in industrial environments) and delivers precise temperature data, enabling operators to detect overheating early and prevent failures. This proactive monitoring is critical for high-load, high-temperature applications.
The transformer holds UL 2200 certification, a global standard confirming its safety and performance for power transformers. This certification ensures compliance with strict safety regulations for high-risk areas, making it suitable for use in North America and international markets. It validates the transformer’s ability to withstand electrical faults, fire, and environmental stress, providing peace of mind for operators.
The SG(B)10 transformer features an insulation class of H-class (180℃) and a rated capacity range that supports medium loads, from small tunnels to large mines. This capacity scalability ensures it can be tailored to diverse applications, while the H-class insulation meets the thermal demands of extreme environments.
For environmental protection, the transformer has an IP20 dustproof rating that prevents dust ingress while allowing air circulation for cooling. The working temperature range is extremely wide, adapting to conditions from -50℃ to +70℃— making it suitable for both cold and hot climates. These ratings ensure durability across geographically diverse and harsh settings.
Cooling is achieved through air self-cooling (AN), leveraging the non-encapsulated design for maximum heat dissipation. The natural air circulation around windings eliminates the need for complex cooling systems, reducing maintenance and energy consumption. The optional fiber optic temperature sensors provide precise hot spot monitoring, with partial discharge below 5pC for stable electrical performance.
In subways and tunnels, high temperatures, dust, and limited maintenance access demand ruggedness. The SG(B)10’s H-class insulation and dustproof design power lighting, signaling, and train control systems, ensuring reliable operation for public transportation. Its compact size also fits into limited tunnel spaces, making it ideal for underground infrastructure.
In mines, underground heat, dust, and moisture degrade standard transformers. The SG(B)10’s temperature resistance, dustproof rating, and moisture tolerance handle these challenges, powering mining equipment, ventilation systems, and lighting. The non-encapsulated design simplifies maintenance in underground mines, where access is often restricted.
In the chemical industry, the transformer’s halogen-free insulation prevents toxic gas release during fires, ensuring safety for facilities with chemical spill or combustion risks. It powers processing equipment, storage systems, and safety infrastructure, delivering reliable performance in corrosive or high-heat chemical plants.
The SG(B)10 is also suitable for densely populated areas with strict fire codes, such as urban subway hubs. Its dry-type design eliminates oil-filled fire risks, while its fire-safe materials and high insulation class ensure compliance with safety regulations. It provides critical power for public infrastructure without posing additional risks to residents.
The SG(B)10 dry-type transformer is a rugged, high-performance power device engineered for extreme and high-risk environments. As a non-encapsulated H-class dry-type power transformer, it is built to withstand harsh conditions like extreme temperatures, dust, and moisture— making it an extreme environment transformer for subways, mines, and chemical plants. Its robust construction prioritizes durability and reliability, ensuring operation even in settings where standard transformers would fail.
Unlike encapsulated dry-type transformers, the SG(B)10 features a non-encapsulated design that omits full resin coating of windings. This design enhances heat dissipation by allowing air to circulate directly around windings, while still providing protection against dust and debris. It also simplifies maintenance access to internal components, reducing downtime for repairs or inspections— a key advantage in high-risk environments where maintenance is often challenging.
The SG(B)10’s most critical feature is the H-class insulation system, which resists temperatures up to 180℃. This high thermal tolerance enables stable operation in high-heat environments like mines, subways, or chemical plants, where ambient temperatures can exceed standard limits. The insulation materials also offer excellent dielectric strength, ensuring reliable performance under electrical stress.
For environmental adaptability, the transformer operates reliably across a wide temperature range (from extreme low to high), making it suitable for outdoor or unconditioned indoor spaces like subway tunnels. It also has an IP20 dustproof rating to block mine or tunnel dust from entering internal components, preventing clogging and performance degradation. This dust resistance is critical for maintaining efficiency in dusty industrial settings.
The SG(B)10 adheres to environmentally friendly standards with halogen-free insulation materials. During combustion, these materials release no toxic gases, aligning with EU environmental regulations and ensuring safety for workers and nearby communities. The absence of halogens also reduces environmental impact, making it a sustainable choice for high-risk industries.
A standout feature is the optional fiber optic temperature measurement system, which provides real-time monitoring of winding hot spot temperatures. Unlike traditional sensors, fiber optic technology resists electromagnetic interference (common in industrial environments) and delivers precise temperature data, enabling operators to detect overheating early and prevent failures. This proactive monitoring is critical for high-load, high-temperature applications.
The transformer holds UL 2200 certification, a global standard confirming its safety and performance for power transformers. This certification ensures compliance with strict safety regulations for high-risk areas, making it suitable for use in North America and international markets. It validates the transformer’s ability to withstand electrical faults, fire, and environmental stress, providing peace of mind for operators.
The SG(B)10 transformer features an insulation class of H-class (180℃) and a rated capacity range that supports medium loads, from small tunnels to large mines. This capacity scalability ensures it can be tailored to diverse applications, while the H-class insulation meets the thermal demands of extreme environments.
For environmental protection, the transformer has an IP20 dustproof rating that prevents dust ingress while allowing air circulation for cooling. The working temperature range is extremely wide, adapting to conditions from -50℃ to +70℃— making it suitable for both cold and hot climates. These ratings ensure durability across geographically diverse and harsh settings.
Cooling is achieved through air self-cooling (AN), leveraging the non-encapsulated design for maximum heat dissipation. The natural air circulation around windings eliminates the need for complex cooling systems, reducing maintenance and energy consumption. The optional fiber optic temperature sensors provide precise hot spot monitoring, with partial discharge below 5pC for stable electrical performance.
In subways and tunnels, high temperatures, dust, and limited maintenance access demand ruggedness. The SG(B)10’s H-class insulation and dustproof design power lighting, signaling, and train control systems, ensuring reliable operation for public transportation. Its compact size also fits into limited tunnel spaces, making it ideal for underground infrastructure.
In mines, underground heat, dust, and moisture degrade standard transformers. The SG(B)10’s temperature resistance, dustproof rating, and moisture tolerance handle these challenges, powering mining equipment, ventilation systems, and lighting. The non-encapsulated design simplifies maintenance in underground mines, where access is often restricted.
In the chemical industry, the transformer’s halogen-free insulation prevents toxic gas release during fires, ensuring safety for facilities with chemical spill or combustion risks. It powers processing equipment, storage systems, and safety infrastructure, delivering reliable performance in corrosive or high-heat chemical plants.
The SG(B)10 is also suitable for densely populated areas with strict fire codes, such as urban subway hubs. Its dry-type design eliminates oil-filled fire risks, while its fire-safe materials and high insulation class ensure compliance with safety regulations. It provides critical power for public infrastructure without posing additional risks to residents.
