PRODUCT
13.8kv 13.2kv Pole Mounted Distribution Transformer
CSP Single-Phase Pole-Mounted Transformer Full Technical Parameters (25 kVA – ANSI Standard)
1. General Data
– Model: CSP-25kVA (ANSI C57.12.20) – Type: Completely Self-Protected (CSP), Pole-Mounted, Oil-Immersed, Hermetically Sealed
– Phase: Single-Phase – Frequency: 60 Hz (Standard for Saudi & North America)
– Rated Voltage (HV): 13.8 kV / 7.97 kV (Phase to Ground) – Rated Voltage (LV): 120/240 V (Split Phase)
– Connection: H1-X1 / H2-X2 (Standard ANSI) – Cooling Method: ONAN (Oil Natural Air Natural)
– Insulation Class: OA/AA (Liquid Immersed) – Service Factor: 1.0 / 1.15 (Optional)
2. Nameplate Ratings (As shown in picture)
– kVA Rating: 25 kVA – Impedance Voltage (%Z): 2.5% (Standard for 25 kVA)
– No-Load Current: ≤ 1.0%
3. Losses (ANSI Efficiency Level)
– No-Load Loss (P0): 65 W (Max) – Load Loss (Pk) at 75°C: 380 W (Max)
– Total Loss at Rated Load: 445 W
4. CSP Self-Protection Features (Core Advantage)
This transformer is integrated with built-in protection components, eliminating the need for external fuses:
– High Voltage Fuse: Expulsion type or Current Limiting type (Internal) – Low Voltage Circuit Breaker: Built-in thermal-magnetic circuit breaker
– Pressure Relief Device: Prevents tank rupture due to internal faults – Oil Surge Arrester: Protects against lightning and voltage surges
5. Insulation Level
– HV BIL (Basic Impulse Level): 95 kV LI (Lightning Impulse) – HV AC Withstand: 35 kV / 1 min
– LV BIL: 10 kV LI – Liquid Insulation: Mineral Oil (FR3 Vegetable Oil optional)
6. Temperature Limits
– Winding Temperature Rise: 65 K – Top Oil Temperature Rise: 55 K
– Maximum Ambient Temperature: 40°C – Maximum Hot Spot Temperature: 110°C
7. Construction & Tank
– Tank Material: Corrosion-Resistant Aluminum Alloy (Lightweight, standard for pole-mount) – Shape: Cylindrical (Barrel Type)
– Sealing: Hermetically Sealed with Diaphragm or Expansion Tank – Corrosion Protection: Galvanized + Epoxy Coating (Salt Spray Resistant)
– Mounting: Skid Base with Pole Brackets (Suitable for 8″ – 10″ Poles)
8. Accessories (Standard)
– High Voltage Porcelain Bushings (2 pcs) – Low Voltage Copper Terminals (X1, X2, X3)
– Oil Filler Plug & Drain Valve – Ground Lug (Heavy Duty)
– Nameplate (Stainless Steel, English/Arabic Optional) – Lifting Lugs
9. Standards Compliance
– ANSI C57.12.00: General Requirements for Distribution Transformers – ANSI C57.12.20: Standard for Single-Phase Pole-Mounted Transformers
– IEC 60076: Power Transformers (Dual Certified Optional) – IEEE Std. C57.12.90: Test Methods
10. Protection Class
– IP Rating: IP23 (Protected against solid objects >12mm and water spray)
This series of pole-mounted distribution transformers is custom-designed for distributed power distribution networks catering to overhead distribution loads in urban and rural residential areas. It also meets the requirements of light-duty, diversified power distribution systems, serving as a highly efficient and reliable choice in the field of power distribution. TSTY has dedicated itself to this product category and now launches two core single-phase product lines: standard single-phase pole-mounted transformers and completely self-protected (CSP) transformers. All products are UL certified, with quality complying with global mainstream standards.
Precision Capacity Grading for Full-Scenario Application
Based on the load characteristics of different application scenarios, we have built a capacity system with wide coverage and reasonable gradients, ensuring that every type of user can find a suitable solution:
- Gold-Range Capacities (25 kVA / 37.5 kVA / 50 kVA)
Tailored for detached houses, small farms and retail stores, these capacities are the “golden fit” for efficiently meeting basic power demand in such scenarios.
- Medium Capacities (75 kVA / 100 kVA)
Ideal for small shopping centers, schools, churches, small factories and concentrated customer groups, balancing power supply stability and cost-effectiveness.
- Large Capacities (167 kVA / 250 kVA / 333 kVA)
As the high-capacity options among pole-mounted transformers, they are specifically engineered for heavy-load applications in commercial and light industrial scenarios, ensuring continuous and stable power supply under high-load conditions.
Core Functions & Global Applications
Acting as the core terminal step-down equipment in distributed load areas (e.g., residential quarters, commercial streets), this series of single-phase transformers can accurately convert 13.2kV/13.8kV medium voltage to 220V/480V low voltage, directly supporting residential living, commercial operations and small-scale industrial production.
Currently, they have become the mainstream equipment in power distribution networks across the Philippines, South America and other regions, widely guaranteeing the stable power supply for lighting systems and small industrial equipment. Meanwhile, they can provide dedicated power support for factories and mines. The products have been successfully sold to the Philippines, Venezuela, Peru, the Dominican Republic, Chile, Guyana, Argentina and many other countries and regions, earning an excellent market reputation.
Four Core Advantages for Efficient Power Distribution
- Zero Ground Space Occupation, Multi-Scenario Compatibility
Directly installed on existing utility poles without occupying additional ground space, it can be flexibly deployed in both urban core areas and rural regions, perfectly meeting the power distribution needs of urban and rural areas.
- Compact & Lightweight Design, Cost Control
Adopting an optimized structural design, it features a small size and light weight, which not only reduces transportation costs but also optimizes expenses in installation and operation & maintenance processes.
- Zero Infrastructure Investment, Low Installation Cost
Eliminating the need for constructing expensive distribution rooms or substation foundations, it can be installed directly by leveraging existing utility pole resources, significantly cutting down the overall costs of infrastructure construction and installation.
- High Flexibility & Responsiveness, Adapting to Dynamic Demand
For temporary power supply, seasonal power supply or rapidly developing areas, it enables quick installation, flexible relocation and convenient upgrading, efficiently responding to various dynamic power demand.
