H61 30 kV 33kV 34.5kV 35 kV 46 kV 630kVA High Voltage Oil Immersed Distribution Transformer

Product Description

33/0.4kV Pole mounted High Voltage  Oil Immersed Toroidal Power Transformer

The 33/0.4kV 630kVA high-voltage oil-immersed distribution transformer, constructed with H61 material, features precise specifications of 33kV high-voltage input and 0.4kV low-voltage output. It is suitable for medium and large load scenarios, serving as a core equipment for industrial and civil power distribution.

Adopting special insulating oil and Class H insulated windings, the transformer has an insulation resistance exceeding 1000MΩ. The oil-immersed natural circulation cooling system ensures the temperature remains stable within 85℃ under full load, making it adaptable to complex outdoor environments. Equipped with built-in overpressure and overtemperature alarm protection, it has a short-circuit withstand capacity of 25kA/2s. The IP54 protection rating combined with a corrosion-resistant housing effectively resists rain and dust erosion.

Widely used in industrial parks, commercial complexes and distribution network transformation projects, the transformer has passed IEC 60076 certification and authoritative type tests. With ten years of quality control guaranteeing a 20-year design service life, it supports OEM customization and provides a cost-effective solution for stable power distribution.

Distribution Transformer
1-Three phase oil immersed
2-Specialize in transformer for 10years
3-Authoritative Type Test Reports
4-OEM Service Offered

(I). Product Specification:

Frequency: 50Hz or 60Hz
Capacity: 5kVA ~630kVA
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.

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

1. The payment term: We accept TT,30% deposit and 70% balance against copy of BL.

2. The delivery time: Usually it will take about 15-20 days.

3. The standard of package: Usually use strong plywood case for protection.

4. The logo: If you have good quantity, it absolute no problem to do OEM.

5. 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..

6. Warranty: in 12 month since BL date.

Our Service

1. quick response in before sales period help you got order.

2. excell ent service in production time let you know each step we made.

3. reliable quality solve you after sale headache.

4. 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.