13.8kV 22kV 17.5kV 36kV High Voltage Toroidal Power Transformer for Pole Mounting
Key attributes
| Brand | Rockwell |
| Model NO. | 13.8kV 22kV 17.5kV 36kV High Voltage Toroidal Power Transformer for Pole Mounting |
| Rated voltage | 36kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 500kVA |
| Series | H61 |
Product descriptions from the supplier
Product Description
Oil Immersed Distribution Transformer with test report for power supply
We are a professional transformer manufacturer with 10 years of focused experience, and we are pleased to introduce our 13.8kV, 22kV, 36kV High Voltage Toroidal Power Transformer for Pole Mounting—a three-phase oil-immersed model engineered for reliable medium and high-voltage power distribution. Equipped with authoritative type test reports to guarantee performance and safety, this transformer supports both 50Hz and 60Hz frequency, covers a capacity range of 5kVA to 500kVA, and features a primary voltage of 2400~46,000V alongside a secondary voltage of 120~600V, ensuring stable power conversion for scenarios like residential communities, industrial parks, rural power grids, and remote infrastructure. We also offer flexible OEM services to meet customized demands, making it a trusted choice for your power system needs.
Distribution Transformer
1-Three phase oil immersed
2-Specialize in transformer for 10years
3-Authoritative Type Test Reports
4-OEM Service Offered
Product Specification:
Frequency: 50Hz or 60Hz
Capacity: 5kVA ~500kVA
Primary Voltage: 2400~46, 000V
Secondary Voltage: 120~ 600V
Some of these earthing transformers cover voltage levels including：3.3 kV 5.5 kV 6 kV 6.6 kV 7.2 kV 10kV 10.5kV 11kV 13.2 kV 13.8 kV 15kV 17.5 kV 20 kV 22kV 24kV 30 kV 33kV 34.5kV 35 kV 46 kVetc. and customization is available.
Model NO. |
H61 |
Core |
Core-type Transformer |
Cooling Method |
Oil-immersed Type Transformer |
Winding Type |
Two-winding Transformer |
Certification |
ISO9001-2000, ISO9001, CCC |
Usage |
Power Transformer |
Frequency Characteristics |
Power Frequency |
Shape of Core |
Ring |
Brand |
Rockwell |
Color |
Gray, Green or Customized |
Transport Package |
Wooden Packing |
Specification |
IEC/ANSI/IEEE |
Trademark |
Rockwell |
Origin |
China |
HS Code |
8504330000 |
Production Capacity |
20000 |
Product Scope:
Meet or exceeds ANSI Standards
Robust construction having excellent short circuit and thermal withstand capabilities
ROCKWELL Transformers are more efficient by Reduced no-load losses and Reduced load losses
Customized to Specific Requirements
Three phase pole mounted type distribution transformer Features:
Three phase transformer with more economical cost
Pole Mounted type transformer for easy installation
Oil Filled type for Cooling Method
Three phase pole mounted transformer is used for power transmission and distribution, with low loss and high efficiency
This type Three phase pole mounted transformer is advanced design to increase short-circuit strength, thermal strength
Durable and corrosion resistant finish meets all ANSI/IEC/BS Standards for single phase pole mounted transformer.
ROCKWELL Three Phase Pole mout type Automated Deisgn System insures each customer's unique requirements are satisfied.
C. R. G. O Silicon Steel or Amorphous Metal is available for customer's option.
Type D16 Series OA Three-Phase Pole-mounted Transformer(CRGO Core BIL 150)
product Photo
Wenzhou Rockwell Transformer Co., Ltd. which is specialized in producing, developing and marketing power transmission and distribution products. The company is established in 2008, the subsidiary of ROCKWILL GROUP, which is located in Wenzhou city, Zhejiang province, China.
Our main products are including switchgear, ring main unit, transformer, load break switch, SF6/vacuum circuit breaker, substation, auto-recloser, voltage regulator, automatic sectionalizer, tap-changer, CT and PT etc.
Many of these products have the certification reports of the international authoritative KEMA Netherlands and CESI Italy.
We have a professional technical team which can provide you with full design solution and technical support.
Work shop
certificates
Team
Project
Shipping
Attention
The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
The delivery time: Usually it will take about 15-20 days.
The standard of package: Usually use strong plywood case for protection.
The logo: If you have good quantity, it absolute no problem to do OEM.
Our market: our products are popular in Indonesia, Philippines, Russia, USA, Middle East and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation..
Warranty: in 12 month since BL date.
Our Service
quick response in before sales period help you got order.
excell ent service in production time let you know each step we made.
reliable quality solve you after sale headache.
long period quality warranty ensure you can buy without hesitate.
Why Choose ROCKWELL
One-stop supplier globally.
More than 10 years professional experiences in electrical appliance industry.
We offer professional online technology support for perfecting your electrical solution free.
Experienced sales service and suggestion.
All the products with accessories under strict quality control and final inspection before ship
We can assure the powerful competitive price and reliable quality products.
Most competitive shipping rate from our own shipping forwarder.
Warranty assurance: 12 month
Whatever big or small order, we can provide you one-to-one service.
Targeting different voltage levels, the product is equipped with triple built-in safety protections: 1) Overvoltage protection: Adaptable to the voltage fluctuation ranges of 13.8kV (North American power grids), 22kV (European power grids), and 36kV (special industrial power grids), with an overload capacity of 120% of the rated load; 2) Insulation protection: Utilizes Class H insulation materials and special transformer oil, with an insulation resistance of ≥1000MΩ to effectively resist voltage breakdown; 3) Emergency protection: Equipped with a pressure relief valve and temperature monitoring device that automatically alarms in case of overheating/overpressure, featuring a short-circuit withstand capacity of 25kA/2s. Compliant with IEC 60076 safety standards, it ensures stable operation across multiple voltage scenarios.
The 13.8kV/22kV/36kV pole-mounted high-voltage toroidal transformer features a lightweight toroidal structure, compatible with standard power poles of φ150-200mm without the need for additional civil engineering reinforcement. It only requires a reserved safety distance of 0.5m for installation, supporting horizontal/vertical mounting methods for outdoor overhead lines. The transformer can withstand extreme temperature and humidity ranges from -30℃ to 50℃, as well as wind conditions below Level 7. Suitable for both single-phase and three-phase power supply systems, its terminal blocks adopt a corrosion-resistant sealed design, eliminating the need for on-site additional protection and significantly reducing the difficulty of outdoor installation.
Related Products
-
Durable H61 H59 5.5 kV 13.2kV 15kV 33kV Power Distribution Transformer for Sale
-
H59 H61 20kV 30kV 33kV High Voltage Oil Immersed Toroidal Power Transformer
-
6 kV 6.6 kV 7.2 kV 10kV High Voltage H61 H59 Distribution Transformer (Oil immersed)
-
10.5kV 11kV 33kV 35kV 44kV Pole Mounted High Voltage Oil Immersed Toroidal Power Transformer
-
15kV 24kV 33kV 44kV High Voltage Oil Immersed Toroidal Transformer for Efficient Power Distribution
-
H61 30 kV 33kV 34.5kV 35 kV 46 kV 630kVA High Voltage Oil Immersed Distribution Transformer
-
H59 H61 13.2kV 13.8kV 15kV 33kV Oil Immersed Power Distribution Transformer Manufacturer
Related Knowledges
-
How does the oil in oil-immersed power transformers clean itself?The self-cleaning mechanism of transformer oil is typically achieved through the following methods: Oil Purifier FiltrationOil purifiers are common purification devices in transformers, filled with adsorbents such as silica gel or activated alumina. During transformer operation, convection caused by oil temperature changes drives the oil to flow downward through the purifier. Moisture, acidic substances, and oxidation byproducts in the oil are absorbed by the adsorbent, thereby maintaining oil c12/06/2025 -
Avoid H59 Transformer Failure with Proper Inspection & CareMeasures to Prevent H59 Oil Immersed Power Distribution Transformer from Burning OutIn power systems, H59 Oil Immersed Power Distribution Transformer play an extremely critical role. Once burned out, they can cause widespread power outages, directly or indirectly affecting the production and daily lives of a large number of electricity users. Based on the analysis of multiple transformer burnout incidents, the author believes that a considerable number of such failures could have been avoided or12/06/2025 -
Top Causes of H59 Distribution Transformer Failure1. OverloadFirst, with the improvement of people's living standards, electricity consumption has generally increased rapidly. The original H59 distribution transformers have small capacity—“a small horse pulling a big cart”—and cannot meet user demands, causing the transformers to operate under overload conditions. Second, seasonal variations and extreme weather conditions lead to peak electricity demand, further causing H59 distribution transformers to run overloaded.Due to long-term overload o12/06/2025 -
How to Select H61 Distribution Transformers？H61 Distribution Transformer Selection includes the selection of transformer capacity, model type, and installation location.1.Selection of H61 Distribution Transformer CapacityThe capacity of H61 distribution transformers should be selected based on the current conditions and development trends of the area. If the capacity is too large, it results in the “large horse pulling a small cart” phenomenon—low transformer utilization and increased no-load losses. If the capacity is too small, the tran12/06/2025 -
Can the secondary neutral of a control transformer be grounded?Grounding the secondary neutral of a control transformer is a complex topic involving multiple aspects such as electrical safety, system design, and maintenance.Reasons for Grounding the Secondary Neutral of a Control Transformer Safety considerations: Grounding provides a safe path for current to flow to earth in the event of a fault—such as insulation failure or overload—instead of passing through the human body or other conductive paths, thereby reducing the risk of electric shock. System sta12/05/2025 -
Wiring Methods and Parameters of Grounding TransformersGrounding Transformer Winding ConfigurationsGrounding transformers are classified by winding connection into two types: ZNyn (zigzag) or YNd. Their neutral points can be connected to an arc suppression coil or a grounding resistor. Currently, the zigzag (Z-type) grounding transformer connected via an arc suppression coil or a low-value resistor is more commonly used.1. Z-Type Grounding TransformerZ-type grounding transformers come in both oil-immersed and dry-type insulation versions. Among them12/05/2025
Related Solutions
-
Complete Solution for Central Air Conditioning System Retrofit in Mexican Office Buildings (American Standard Distribution Transformer)Ⅰ. Project Background & Pain Point AnalysisThe Mexican office building utilizes a 15HP commercial central air conditioning system originally powered by a single-phase 220V grid. Due to the lack of 380V three-phase driving voltage, the compressor startup current exceeds overload limits (measured at 3.2× rated current), causing refrigeration efficiency to plummet to 40%, accompanied by:Motor winding temperature rise exceeding standards (ΔT > 65°C), reducing insulation lifesp05/19/2025 -
NEMA-Compliant Distribution Transformer Solution: Specialized Optimization for New Energy ManufacturingⅠ. Project ChallengesA lithium battery production line in Quebec required conversion of 575V three-phase power from the Canadian industrial grid to 220V single-phase power. The existing distribution transformer system faced:Harmonic interface: Voltage distortion affected precision control systems, reducing yield rates by 18%Energy efficiency loss: Conventional distribution transformers exhibited 0.8 power factor with notable reactive lossesEnvironmental adaptability: Humidity fluctuations in ind05/20/2025 -
Localized Production and Strategic Collaboration Implementation Plan for Oil-Immersed Distribution Transformers in AfricaWenzhou Rockwell Transformer Co., Ltd. distributes power transformers to multiple African countries including Tanzania, Zambia, Rwanda, Ethiopia, Togo, Cameroon, and Malawi. With in-depth knowledge of local policies, we propose a collaborative plan to establish a manufacturing facility for oil-immersed distribution transformers and seek partnerships with qualified African entities.Ⅰ.Localized Production Strategy1. Market-Adaptive Capacity AllocationAlign production capacity with regional market04/23/2025
