Electric Powertek supplies premium 25kV 250A transformer porcelain bushings for power transformer, distribution transformer, and electrical equipment applications. This Porcelain Insulator is specifically engineered to provide reliable electrical insulation and robust conductor support where high-voltage electrical current needs to pass safely through transformer tanks or equipment enclosures.
Made with high-strength electrical porcelain, this transformer porcelain bushing offers exceptional insulation stability, smooth glazed surface protection, and an extended creepage distance for challenging outdoor and transformer-related operating environments. It is ideal for transformer manufacturers, repair workshops, electrical distributors, utility maintenance projects, and bulk procurement orders.
We support large-quantity supply for global project buyers and distributors. If you are looking for a reliable supplier of transformer porcelain bushings, ceramic bushings, or porcelain bushing insulators, Electric Powertek can provide accurate product matching, competitive quotation support, and export-ready packaging for bulk shipment.
| Item | Specification |
| Product Name | 25kV 250A Transformer Porcelain Bushing |
| Product Type | Transformer Porcelain Bushing / Porcelain Bushing Insulator |
| Rated Voltage | 25kV |
| Rated Current | 250A |
| Diameter | 121mm |
| Height | 363mm |
| Creepage Distance | 620mm |
| Material | High-Strength Electrical Porcelain / Ceramic Insulation Body |
| Application | Transformer connection, power distribution equipment, electrical insulation system |
| Supply Type | Bulk order supply, project supply, distributor supply |
• Reliable porcelain insulation body optimized for demanding transformer applications
• Standard 25kV voltage class and 250A current rating
• 620mm long creepage distance for improved insulation paths and flashover prevention
• Smooth glazed porcelain surface for ultimate outdoor weathering and electrical equipment protection
• Rigorous mechanical support and insulation for transformer conductor connections
• Perfectly suitable for replacement, maintenance, and new transformer assembly projects
• Flexible solutions for bulk purchasing and long-term supply cooperation
• Heavy-duty export packaging support to minimize international delivery damage
A transformer porcelain bushing is critical where an electrical conductor passes through a transformer tank or equipment wall while maintaining complete insulation from the grounded metal structure. For transformer manufacturers and grid maintenance companies, bushing quality directly impacts installation accuracy, insulation reliability, and long-term equipment lifespan.
This 25kV 250A transformer porcelain bushing is tailored for transformer-related applications where buyers require a compact ceramic insulation component with stable dimensions and an extended creepage distance. The 363mm height and 620mm creepage distance make it suitable for high-voltage insulation connection requirements within matching system designs.
This high-performance porcelain transformer bushing is widely used in:
• Power transformers & distribution transformers
• Oil-immersed transformer systems
• Transformer repair, retrofitting, and replacement projects
• Electrical equipment connection points & switchgear enclosures
• Utility maintenance stock and substation backup parts
• Transformer component distribution networks
• Electrical equipment manufacturing and heavy industry power lines • Power line and substation support supply chains
For replacement orders: Customers can send photos, engineering drawings, old model numbers, or installation dimensions. Our technical team will check whet
Porcelain bushings remain the industry standard because electrical porcelain provides unmatched dielectric strength, heat resistance, and weather resistance. Compared with ordinary plastic or low-grade synthetic insulation materials, electrical porcelain excels in demanding power equipment environments where high insulation stability and structural support are both strictly required.
The smooth glazed surface helps reduce moisture absorption and surface contamination accumulation. The long 620mm creepage distance provides an extended insulation path along the bushing surface, which is vital for maintaining reliable performance in outdoor, humid, or heavily polluted environments.
Electric Powertek focuses on supplying premium power line hardware, insulators, and transformer accessories for overseas markets. This 25kV 250A transformer porcelain bushing is fully available for bulk order supply, making it a perfect fit for: • Electrical product distributors and wholesalers • Original equipment manufacturers (OEM) of transformers • Transformer repair and maintenance companies • Utility maintenance contractors and grid operators • Power equipment trading companies • EPC contractors and electrical project suppliers • Regional stock replenishment and replacement programs
We understand that bulk buyers need stable specifications, consistent quality control, competitive pricing, safe packaging, and reliable delivery schedules. For large orders, we seamlessly support order planning, packaging confirmation, and mixed shipments with other porcelain insulators or power line accessories.
For high voltage transformer bushings, buyers prioritize dimensional accuracy, porcelain body integrity, surface finish, and packaging safety. Electric Powertek pays close attention to these parameters during production and shipment: • Stable porcelain body shape via advanced firing techniques • Perfectly smooth glazed surface to prevent dirt adhesion • Highly accurate diameter (121mm) and height (363mm) tolerances • Guaranteed 620mm creepage distance compliance • Consistent color and appearance across bulk orders • Careful electrical and structural inspection before packing • Export-ready packaging to drastically reduce transport breakage
Different transformer projects may require specific bushing dimensions, terminal structures, voltage ratings, or unique installation interfaces. In addition to this 25kV 250A model, Electric Powertek helps customers source and match other transformer porcelain bushings according to drawings or samples.
We fully support: • Model matching based on photos, old part numbers, or drawings • Critical dimension checking before order confirmation • Custom logo or marking requirements for bulk orders • Custom packing configurations for distributor stock • Full project documentation and technical datasheets • Mixed orders combined with other overhead line porcelain insulators
Porcelain bushings are ceramic products, making safe packaging paramount for international shipment. Electric Powertek provides heavy-duty export packaging tailored to product size, order quantity, and shipping methods.
For bulk orders, we arrange: • Reinforced carton packing • Heavy-duty wooden case packing • Secure pallet packing with shrink wrapping • Protective shock-absorbing separation between porcelain parts • Clear outer markings according to customer requirements • Full sets of export documents for seamless international customs clearance
To get a fast and accurate quotation for the 25kV 250A transformer porcelain bushing, please prepare the following details:
Required order quantity
Destination country and port of delivery
Whether you require sample confirmation first
Specific voltage and current requirements (if different from 25kV 250A)
Required dimensions or engineering drawings
Application type: transformer manufacturing, repair, or routine replacement
Specific packing, labeling, or marking requirements
Packing&Delivery
Partner customers
Cooperative Client
Our cooperative client are all over the world and our products are very popular all over the world. Many products are exported to Russia, USA, Australia, Canada, South Africa, Kenya, Tanzania, Zambia, Brazil and Argentina. Chile, Southeast Asian countries and other international markets. With first-class technical ability and perfect pre-sale and after-sales service guarantee system, we have established a good reputation between enterprises and users.
FAQ
The recommended product name is 25kV 250A Transformer Porcelain Bushing. It is also frequently searched as porcelain transformer bushing, transformer ceramic bushing, high voltage transformer bushing, and porcelain bushing insulator.
This model features a 121mm diameter, a 363mm height, and a 620mm creepage distance. It is precisely rated for 25kV voltage and 250A current transformer applications.
Yes. Electric Powertek supports bulk order supply for global distributors, transformer manufacturers, repair workshops, and electrical project buyers.
Yes, it can be seamlessly used for transformer replacement projects if the voltage rating, current rating, dimensions, and installation interface match the original hardware. We recommend sending photos or drawings to our team for quick verification.
Yes. For bulk orders, we can help customize or source transformer porcelain bushings according to specific customer drawings, unique dimensions, or customized voltage/current/creepage distance requirements.
We utilize export cartons, heavy-duty wooden cases, or pallet packing with secure, shock-absorbing protective separation between each porcelain component to reduce the risk of breakage during freight handling.
Looking for a reliable bulk supplier of 25kV 250A transformer porcelain bushings? Send us your required quantity, drawings, photos, or technical specifications. Electric Powertek will help confirm the perfect bushing model and provide a competitive quotation for your transformer production, replacement, or distribution project.
