TiraThai, a specialized sub-brand of Jinguan Electric dedicated to transformer and electrical equipment innovations, proudly introduces the YB Series Prefabricated Compact Substations. These advanced, modular units represent a pinnacle of integrated power distribution technology, seamlessly combining high-voltage (HV) electrical equipment, power transformers, and low-voltage (LV) distribution systems into a single, prefabricated enclosure. Drawing from proven foreign designs and adapted for global applications, the YB Series utilizes durable materials such as channel steel, aluminum alloy, and flame-retardant composite panels to create a robust, weather-resistant shell that ensures long-term reliability in diverse environments.

Jinguan Electric, founded in 1979 as a high-tech enterprise in Nanyang City, Henan Province, China, has transformed from its foundational expertise in arrester manufacturing to a worldwide leader in high-voltage transmission and distribution solutions. By integrating Industry 4.0 technologies, Jinguan Electric emphasizes core competitiveness through relentless innovation, with TiraThai serving as its premier brand for prefabricated substation systems. This sub-brand leverages Jinguan Electric's extensive manufacturing capabilities to deliver YB Series substations that exceed international benchmarks, including IEC 62271-202:2020, GB/T 17467-2010, and IEEE/ANSI C2-2017. Certified by UL, cUL, CSA, SGS, CCC, CQC, CTQC, and CE, these substations adhere to ISO9001 (quality), ISO14001 (environmental), and ISO45001 (health & safety) standards, offering a minimum two-year warranty, comprehensive factory acceptance testing (FAT), and dedicated after-sales engineering support for seamless global integration.

The YB Series is engineered for outdoor, public-accessible installations, featuring a double-layer top cover for superior heat insulation and ventilation, preventing thermal buildup in high-load scenarios. The HV side incorporates advanced load switches or vacuum circuit breakers for reliable fault isolation, while the LV side supports versatile cabinet configurations like GGD or MNS for efficient power allocation. With primary voltages from 3kV to 35kV, transformer capacities spanning 100kVA to 3000kVA, and operational frequencies up to 50Hz, these substations connect externally via cables and allow operation from inside or outside the enclosure. Customizable to regional voltage, frequency, and environmental needs, TiraThai's prefabricated compact substations embody the company's philosophy of "dig 100 meters deep in 1 meter of space," delivering compact, mobile solutions that minimize on-site assembly and maximize deployment speed. Whether for urban high-rises or remote industrial sites, the YB Series ensures uninterrupted, high-quality power distribution, backed by rigorous testing to confirm compliance with energy efficiency and safety norms.

Substation Model: YB Series Rated Voltage: 3-35kV (HV Side); 0.4-10kV (LV Side) Capacity Range: 100-3000kVA (Customizable) Frequency: ≤50Hz


This comprehensive adaptability makes TiraThai's Prefabricated Compact Substations a versatile, future-proof choice for efficient power infrastructure worldwide.

Key Features and Engineering Excellence

TiraThai's YB Series Prefabricated Compact Substations are distinguished by their integrated, modular architecture, which streamlines installation and enhances operational resilience. The four-compartment design—high-voltage room, low-voltage room, transformer room, and protective enclosure—provides clear separation of functions, facilitating safe access and reducing maintenance downtime by up to 40%. The HV room equips load switches or vacuum circuit breakers with arc-extinguishing capabilities, ensuring rapid fault clearing and overcurrent protection, while the LV room supports flexible outgoing circuits via GGD, GCS, or MNS cabinets for precise load distribution.

The transformer room houses European-style units with low-noise, low-loss cores (CRGO silicon steel) and copper windings, achieving >98% efficiency and overload tolerance up to 120% short-term. The enclosure, crafted from channel steel, aluminum alloy, and flame-retardant composites, offers IP54 weatherproofing, wind resistance up to 700Pa, and seismic stability (0.5g acceleration), certified for stacking during transport to cut shipping costs by 30%. The double-layer top cover incorporates natural ventilation and optional forced fans for thermal management, maintaining internal temperatures within Class A limits (105°C rise) even in ambient extremes from -40°C to +50°C.

Jinguan Electric's state-of-the-art production—featuring prefabricated modular assembly, vacuum testing, and digital prototyping—ensures leak-free, vibration-resistant construction with customizable aesthetics to blend into urban landscapes. Optional integrations like SCADA remote monitoring, surge arresters, and fire suppression systems elevate safety and intelligence. Compared to conventional substations, TiraThai units reduce civil engineering needs by 50%, offer unmanned operation with noise under 60dB, and comply with EMC standards for minimal electromagnetic interference. These features not only align with GB/T 17467-2010 and IEC 62271 but surpass them, providing a substation that combines compactness, mobility, and sustainability for modern power challenges.

Technical Specifications

TiraThai's YB Series Prefabricated Compact Substations are precision-engineered for versatility, with baseline specs expandable through customization. Below is an expanded table of key parameters, validated through Jinguan Electric's certified labs and compliant with IEC 62271-202:2020, GB/T 17467-2010, and IEEE/ANSI C2-2017 standards.

ParameterSpecification Details
Capacity Range (kVA)100-3000 (customizable, e.g., 1600kVA standard)
Rated Voltage (kV)HV: 3 / 6 / 10 / 20 / 35; LV: 0.4 / 0.69 / 10 (customizable)
Frequency (Hz)≤50 (customizable to 60)
HV Side EquipmentLoad switch, vacuum circuit breaker, SF6 switch (customizable)
LV Side EquipmentGGD / GCS / MNS / XL-21 cabinets (customizable outgoing circuits)
Transformer TypeEuropean-style oil-immersed or dry-type (customizable)
Insulation ClassClass A (105°C rise)
Cooling MethodONAN (transformer); natural/forced ventilation (enclosure)
Enclosure ProtectionIP54 (waterproof, dustproof, flame-retardant)
Noise Level (dB, 1m)≤60
Operating Temperature (°C)-40 to +50
Operating Humidity (% RH)≤95 (non-condensing)
Short-Circuit Withstand40kA / 2s (integrated protection)
Efficiency (%)>98 at full load
Seismic ResistanceUp to 0.5g acceleration
Wind Resistance (Pa)700
Dimensions (m, approx. 500kVA)Length: 3-5; Width: 2.5; Height: 2.6 (customizable)
Weight (tons, approx. 500kVA)3-5 (modular assembly)

These metrics support altitudes up to 2000m, with full type testing for thermal cycling, dielectric strength, and IP rating verification. Custom options include dry-type transformers for indoor use and integrated renewables interfaces.

Applications and Real-World Performance

TiraThai's YB Series Prefabricated Compact Substations are engineered for diverse power distribution scenarios, excelling in environments where space efficiency and rapid deployment are paramount. In urban high-rise buildings and residential quarters, they provide integrated HV/LV solutions for reliable electricity supply to apartments, elevators, and common areas, minimizing visual impact with compact enclosures. High-tech development zones and small-to-medium factories deploy them for on-site power management, supporting machinery and lighting with customizable outgoing circuits.

Mining and oil field operations benefit from the weather-resistant, mobile design, enabling quick setups in remote locations to power pumps, drills, and control rooms amid harsh conditions. Temporary construction sites leverage the stackable, transportable structure for short-term infrastructure, reducing logistics costs and setup time by 40%. In renewable energy projects, such as solar or wind microgrids, the substations integrate step-up transformers for grid connection, handling variable loads with overload resilience.

Real-world data from Jinguan Electric installations highlights 99.98% uptime, 20-25% energy savings from low-loss components, and MTBF exceeding 100,000 hours, making them indispensable for resilient, scalable power networks in developed and emerging markets alike.

Why Choose TiraThai by Jinguan Electric?

As Jinguan Electric's sub-brand, TiraThai offers prefabricated substation mastery backed by over 45 years of innovation. Our YB Series provides unmatched modularity, IP54 protection, and full customization, exceeding standards with flame-retardant materials and two-year warranties. Jinguan Electric's ecosystem ensures rapid shipping, FAT, and engineering support, delivering 30% lower installation costs and superior efficiency for global infrastructure.

Expanded FAQ Section

How are TiraThai substations shipped internationally? Shipped via sea, rail, or truck for global delivery. Modular units in stackable containers, main components in bulk packaging, and accessories in wooden cases for transit resilience.

Can TiraThai products be customized? Yes, tailored for voltage, frequency, switchgear types, and environmental needs through Jinguan Electric's engineering expertise.

What warranty do you provide? At least two years comprehensive coverage for defects, performance, and materials, with extendable options available.

Is Factory Acceptance Testing (FAT) supported? Standard: Thorough electrical, thermal, and integration tests per unit, with client witnessing in-person or remotely.

Do you provide after-sales engineering support? Yes, Jinguan Electric deploys dedicated engineers for on-site installation, commissioning, troubleshooting, and audits to ensure optimal performance.

What makes them suitable for urban use? Compact footprint, low noise (≤60dB), and flame-retardant enclosures enable seamless integration in high-rises and residential areas without extensive civil works.

Are they weather-resistant for remote sites? Absolutely—IP54 sealing, -40°C to +50°C tolerance, and windproofing support mining/oil fields with minimal maintenance.

Certifications and Quality Assurance

TiraThai products, supplied through Jinguan Electric, hold UL, cUL, CSA, SGS, CCC, CQC, CTQC, and CE certifications, plus mandatory approvals. Systems certified to ISO9001 (quality), ISO14001 (environment), and ISO45001 (health & safety), ensuring IEC 62271-202:2020, GB/T 17467-2010, and IEEE/ANSI compliance for global excellence.

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