TiraThai, a specialized sub-brand of Jinguan Electric dedicated to transformer and electrical equipment innovations, proudly introduces the Single-Phase Pole-Mounted Transformers. These compact, cylinder-sealed units are engineered for overhead distribution lines, featuring complete self-protection (CSP) to safeguard against lightning strikes, short circuits, and operational faults while protecting downstream lines. As part of the D11 series, they integrate high-voltage bushings on the cover, low-voltage bushings on the tank wall, grounding devices, lifting hooks, and supporting lugs for easy pole installation. Ideal for rural electrification and urban overhead networks, the transformers ensure reliable, low-maintenance power delivery in space-constrained environments.
Jinguan Electric, founded in 1979 as a high-tech enterprise in Nanyang City, Henan Province, China, has evolved from pioneering arrester manufacturing to a global leader in high-voltage transmission and distribution equipment. Embracing Industry 4.0 principles, Jinguan Electric drives core competitiveness through continuous innovation, with TiraThai serving as its premier brand for pole-mounted transformer solutions. This sub-brand channels Jinguan Electric's expertise into customizable, eco-friendly single-phase transformers that comply with international standards, including ANSI C57.12.20, IEEE C57.12.00, and GB 1094. Certified by UL, cUL, CSA, SGS, CCC, CQC, CTQC, and CE, these units uphold ISO9001 (quality), ISO14001 (environmental), and ISO45001 (health & safety) management systems, backed by a minimum two-year warranty, comprehensive factory acceptance testing (FAT), and dedicated after-sales engineering support for global deployments.
The D11 series supports primary voltages of 6kV, 12.47kV, or 13.2kV, with secondary options of 120/240V to 600V and capacities from 30kVA to 167kVA, operating at 50/60Hz. Customizable for global requirements, they feature non-hanging core structures for vibration resistance and low noise. TiraThai's philosophy—"dig 100 meters deep in 1 meter of space"—reflects Jinguan Electric's commitment to precision, delivering transformers that optimize overhead distribution for sustainable power infrastructure.
Transformer Model: D11 Series (CSP Type) Primary Voltage Ratings: 6 / 12.47 / 13.2kV (Customizable) Secondary Voltage Ratings: 120/240V / 240/480V / 347V / 600V (Customizable) Rated Capacity: 30-167kVA (Customizable) Rated Frequency: 50/60Hz
This compact design makes TiraThai's Single-Phase Pole-Mounted Transformers a cornerstone for efficient, protected rural and urban power distribution.
Key Features and Engineering Excellence
TiraThai's Single-Phase Pole-Mounted Transformers are engineered for resilience, incorporating CSP protection for automatic fault isolation. High-voltage bushings (one or two on the cover) include fuses for overcurrent safeguarding, while arresters on the tank wall—connected via copper strips—divert surges from lightning or switching. The secondary breaker switch, located above the windings, features an operating handle, overload reset, and signal light for immediate fault indication and manual reset.
The core and windings mirror conventional oil-immersed designs for proven reliability, but the CSP architecture adds autonomous layers: automatic disconnection during faults prevents cascading failures, extending line lifespan. Vacuum-impregnated insulation repels moisture, with high-permeability silicon steel cores for low no-load losses (<0.5% rated capacity) and oxygen-free copper windings minimizing resistance. The cylindrical tank, from corrosion-resistant steel, employs hermetic seals with nitrile gaskets, eliminating conservators and leak risks.
Jinguan Electric's automated production—robotic winding, oil-filling under vacuum, and AI inspections—ensures defect-free units, with optional epoxy-resin bushings for dielectric strength in polluted atmospheres. Compared to three-phase models, TiraThai single-phase variants offer 40% smaller footprints and lower noise (under 50dB), ideal for residential poles. Optional accessories like pressure relief and gas relays safeguard internals. These features not only meet but exceed ANSI C57.12.20 and IEEE C57.12.00 standards, providing up to 99.9% uptime in surge-prone areas.
Technical Specifications
TiraThai's D11 Series Single-Phase Pole-Mounted Transformers are precision-crafted for reliability, with specs expandable through customization. Below is a detailed table of key parameters, based on Jinguan Electric's validated testing and compliant with ANSI C57.12.20, IEEE C57.12.00, and GB 1094 standards.
| Parameter | Specification Details |
|---|---|
| Rated Capacity (kVA) | 30 / 50 / 75 / 100 / 167 (custom up to 250) |
| Primary Voltage (kV) | 6 / 12.47 / 13.2 (single-phase, customizable) |
| Secondary Voltage (V) | 120/240 / 240/480 / 347 / 600 (dual or single) |
| Frequency (Hz) | 50/60 |
| Connection Type | Single-phase (grounded or ungrounded) |
| Tap Changer | Off-circuit, ±2x2.5% or ±5% (NLTC standard) |
| No-Load Loss (W) | 30kVA: 150; 100kVA: 450 (low-loss core) |
| Load Loss (W, at 75°C) | 30kVA: 800; 100kVA: 2000 (copper windings) |
| Impedance (%) | 3-5% (capacity-dependent) |
| Insulation Class | Class A (105°C rise), oil-immersed |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Noise Level (dB, 1m) | ≤50 at full load |
| Enclosure Protection | IP20 standard; IP54 optional for outdoor use |
| Efficiency (%) | >98% at full load |
| Short-Circuit Withstand | 12kA / 2s (integrated fuses and breakers) |
| Weight (kg, approx. 100kVA) | Total: 800-1000 (core & windings: 400) |
| Dimensions (cm, approx. 100kVA) | Height: 120; Diameter: 80 (cylindrical tank) |
These values meet ANSI C57.12.00 and IEEE C57.12.90, with full routine testing for ratio, resistance, and dielectric integrity. Custom enhancements include amorphous cores for 70% loss reduction and smart sensors.
Applications and Performance Benefits
TiraThai's Single-Phase Pole-Mounted Transformers are optimized for overhead distribution in rural and urban settings. In residential areas, they mount on utility poles to step down medium voltages for homes, powering appliances and EV chargers with CSP protection against surges. Urban neighborhoods use them for localized supply, blending discreetly into landscapes with tamper-resistant designs.
Off-grid cabins and agricultural pumps benefit from compact, low-maintenance installation, while renewable tie-ins like single-phase solar inverters leverage customizable secondaries for stable outputs. Jinguan Electric's deployments show MTBF over 100,000 hours, 10-15% energy savings, and rapid fault clearing (<50ms), enhancing line reliability in remote or populated areas.
Why Choose TiraThai by Jinguan Electric?
TiraThai, as Jinguan Electric's sub-brand, delivers pole-mounted excellence backed by 45+ years of innovation. Our D11 series offers CSP autonomy, ANSI compliance, and full customization, outperforming standards. With UL/CSA certifications and sustainable designs, we ensure 20% lower TCO and superior protection for efficient distribution.
Expanded FAQ Section
How are TiraThai transformers shipped internationally? Shipped via sea, rail, or truck for global delivery. Cylindrical tank in bulk packaging for stability, accessories in wooden cases to protect against transit impacts.
Can TiraThai products be customized? Yes, accommodating international variances in voltage, frequency, and protections, tailored via Jinguan Electric's engineering.
What warranty do you provide? We offer a minimum two-year comprehensive warranty, covering defects, performance, and materials, with options for extended plans.
Is Factory Acceptance Testing (FAT) available? Absolutely—FAT is routine, involving full electrical, mechanical, and thermal tests, with client witnessing available.
Do you provide after-sales engineering support? Certainly. Jinguan Electric assigns dedicated engineers for on-site installation, operational training, troubleshooting, and periodic audits.
What distinguishes CSP protection? Integrated fuses, arresters, and breakers provide automatic isolation from surges, shorts, and overloads, enhancing line reliability.
Are mounting options flexible? Yes—pole, pad, or substation mounts, with seismic kits for high-risk areas and weatherproofing for outdoor exposure.
Certifications and Quality Assurance
TiraThai products, supplied through Jinguan Electric, feature national type tests: UL, CUL, CSA, CCC, CQC, CTQC, CE, and SGS for safety and performance. Our management systems certify to ISO9001 (quality), ISO14001 (environmental), and ISO45001 (occupational health), with annual audits ensuring ANSI C57.12.20, IEEE C57.12.00, and GB 1094 excellence.
Contact Us Today
Elevate your distribution with TiraThai's Single-Phase Pole-Mounted Transformers. For inquiries, quotes, or technical discussions:
- WhatsApp: +8613037600603
- Email: [email protected] or [email protected]
Our experts are ready to respond promptly and guide you toward optimal solutions.
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