Buy 220 kv 230kv High Voltage Oil immersed Power Transformer in China Supplier
For power grids, large-scale substations, and sectors such as mining or petrochemicals—where long-term energy efficiency and grid safety are paramount—procuring high-voltage 220kV/230kV transformers is a critical decision. These assets are vital to essential industries and represent a long-term strategic investment.
Although Instrava operates as a trading supplier rather than a manufacturer, our core value lies in our exceptional engineering-led vetting process. We rigorously evaluate manufacturing resources in China, selecting only those power equipment manufacturers that possess comprehensive qualifications, advanced facilities, and a skilled workforce.
We can meet your specific customization needs, project requirements, and product certification standards by leveraging China’s vast manufacturing market.
Our delivery lead times are significantly shorter than those of European or American companies.
Deskripsi Trafo
Advantages of choosing Chinese-made power transformers-1
Complete Industrial Chain Support: From upstream silicon steel, copper, and insulation materials to downstream complete machine manufacturing and testing equipment, the entire process is independently controllable. Raw material response speed and supporting costs are significantly superior to those in Europe, America, and Japan.
Scalability and Delivery Efficiency: Possessing the world’s largest single-plant production base, with an annual production capacity of tens of millions of kVA, enabling “factory prefabrication + rapid assembly,” shortening delivery cycles by 30%-50% compared to international counterparts, and adapting to urgent overseas orders.
Technological Maturity and Reliability: 220kV/230kV is the standard voltage for the domestic power grid, and the manufacturing process is extremely mature. Some companies have achieved breakthroughs in 230kV high seismic resistance, low noise, vegetable oil environmental protection, and first-class energy efficiency technologies, setting an industry record of “zero failures upon first commissioning” for hundreds of units.
Cost and Cost-Effectiveness: Under the same parameters, the overall cost is 20%-30% lower than imported products, and customized designs (such as special seismic resistance and high-altitude adaptation) are supported, combining high performance and price advantages.
Full coverage of international standard certifications: Products from leading mainstream companies have passed IEC, KEMA, ASTA, and CE certifications, meeting the power grid standards of Europe, the United States, and many countries along the Belt and Road Initiative. Exports surged by 36% year-on-year in 2025.
Key capabilities of China in manufacturing high-voltage transformers are demonstrated.
Breakthrough in High-End Manufacturing: Mastering technologies such as fully insulated windings, low partial discharge (≤10pC), high short-circuit withstand capability, and intelligent temperature control; some products are designed with a lifespan of up to 40 years.
Leading in Green and Energy-Saving Technology: Widely adopting Class 1 energy-efficient amorphous alloys or low-loss silicon steel solutions, reducing no-load losses by 60%-70% compared to traditional products, aligning with the global trend towards carbon neutrality.
Adaptable to Specialized Scenarios: Providing customized solutions for high overload, fireproof, explosion-proof, and strong seismic resistance for scenarios such as new energy power plants, data centers, rail transit, and overseas earthquake zones. Note: 230kV is often used as a voltage level for specific export markets (such as South America and some Asian countries) or special engineering projects. Chinese manufacturers can flexibly adapt to 220kV production lines for customized production without the need to rebuild production lines.
Parameter Trafo
| Fitur / Spesifikasi Teknis | Spesifikasi Teknis |
| Klasifikasi Produk | High Voltage Special Oil-Immersed Power Transformer |
| Primary Voltage Rating | 220 kV / 230 kV (Fully Customizable to Regional Grids) |
| Secondary Voltage Ratings | 6.3 kV, 10.5 kV, 11 kV, 33 kV, 35 kV, 69 kV (Fully Customizable) |
| Power Capacity Range | 6,300 kVA to 200 MVA |
| Core Processing & Cut Line | Top-Grade Hi-B Silicon Steel via CNC GEORG Cutting Lines |
| Winding Matrix Engineering | Premium Oxygen-Free Copper Coils / Self-Adhesive Transposed Conductors |
| Structural Alignment | Six-Sided Assembly Positioning |
| Drying & Filling Processing | Kerosene Vapor Phase Drying (VPD) / Full Vacuum Oil-Filling |
| Connection Vector Groups | YNd11 / YNyn0 (Other Configurations Available Upon Request) |
| Cooling Medium | High-Dielectric Mineral Insulation Oil |
| Design Life Profile | 30-Year Maintenance-Free Lifespan via Specially Sealed Tank Design |
| International Quality Marks | ISO 9001, ISO 14001, CE, SGS, UL |
| Applicable Standards | IEC Series, ANSI / IEEE, CSA / CAN |
| Main Technical Parameters for oil-immersed power transformer | ||||||||
| Daya Terukur (kVA) | Tegangan Tinggi (kV) | H.V.Tap range | Tegangan Rendah (kV) | Simbol koneksi | Short Circuit Impendence | No-load loss(kw) | On-load loss(kw) | Arus kosong (%) |
| 6300 | 63 66 69 110 132 138 220 |
±8x 1.25% |
6.3 6.6 10.5 11 33 69 |
YNd11 YNyn0 others |
10-14 | 9.4 | 34 | 0.63 |
| 8000 | 11.2 | 40.4 | 0.63 | |||||
| 10000 | 13.1 | 47.6 | 0.75 | |||||
| 12500 | 15.4 | 56.5 | 0.53 | |||||
| 16000 | 18.5 | 69.5 | 0.49 | |||||
| 20000 | 21.8 | 84.2 | 0.49 | |||||
| 25000 | 25.6 | 99.5 | 0.4 | |||||
| 31500 | 30.4 | 120 | 0.4 | |||||
| 40000 | 36.2 | 140.3 | 0.39 | |||||
| 50000 | 42.6 | 174.3 | 0.39 | |||||
| 63000 | 52 | 210 | 0.39 | |||||
| 75000 | 60 | 238 | 0.49 | |||||
| 90000 | 69 | 274 | 0.49 | |||||
| 120000 | 85 | 328 | 0.46 | |||||
| 150000 | 101 | 385 | 0.42 | |||||
| 160000 | 105 | 404 | 0.42 | |||||
| 180000 | 115 | 436 | 0.42 | |||||
| 240000 | 144 | 539 | 0.4 | |||||
Instrava OEM / ODM
Pencarian Pemasok dan Penyesuaian Sesuai Kebutuhan: Memberikan Produk yang Tepat Sesuai Kebutuhan Anda
Sebagai pemasok dan mitra pengadaan terpercaya Anda, kami menjembatani kesenjangan antara kebutuhan khusus Anda dan kemampuan manufaktur Tiongkok yang sangat besar.
Menemukan produk yang tepat dalam rantai pasokan yang sangat besar bisa menjadi tantangan tersendiri. Di situlah kami berperan.
Sebagai penyedia produk industri yang terkurasi, nilai inti kami sangat sederhana: Kami menempatkan diri pada posisi Anda untuk membantu Anda mendapatkan produk yang paling sesuai. Apakah Anda seorang Kontraktor EPC yang memerlukan kepatuhan teknis khusus, sebuah Produsen peralatan OEM sedang mencari branding khusus, atau sebuah distributor/pedagang industri Untuk mendapatkan keunggulan kompetitif, kami menyesuaikan dan merancang produk secara khusus agar sesuai dengan kebutuhan pengadaan Anda.
Bagaimana Kami Menyesuaikan Layanan Kami Sesuai Kebutuhan Pengadaan Anda
Untuk Kontraktor dan Insinyur EPC: Kami mengonfigurasi instrumen dan perangkat secara khusus agar sesuai dengan spesifikasi teknis Anda—mulai dari menyesuaikan sambungan proses, bahan khusus, protokol sinyal, hingga mengelola kalibrasi dan pengujian oleh pihak ketiga—sehingga Anda mendapatkan solusi yang siap diterapkan dalam proyek.
Bagi Produsen Peralatan Asli (OEM): Kami menyediakan layanan kustomisasi OEM/ODM yang komprehensif, termasuk desain casing khusus, pelabelan, branding (merek pribadi), serta spesifikasi teknis yang disesuaikan agar dapat terintegrasi dengan mulus ke dalam mesin Anda.
Untuk Distributor dan Pedagang Industri: Kami menawarkan fleksibilitas dalam penyesuaian kemasan, ragam produk, dan parameter teknis, yang akan membantu Anda membedakan portofolio produk Anda dan memenangkan lebih banyak tender lokal.
Mengapa Memilih Kami sebagai Mitra untuk Pengadaan Barang Sesuai Pesanan?
Layanan Penyelarasan Teknik Terpadu: Anda tidak perlu berurusan dengan banyak pabrik. Kami menerjemahkan persyaratan teknis Anda menjadi gambar kerja pabrikan yang akurat.
Jaminan Kualitas & Kepatuhan yang Ketat: Kami mengawasi seluruh proses penyesuaian dan produksi di Tiongkok, guna memastikan produk akhir yang disesuaikan tersebut memenuhi standar dan sertifikasi lokal Anda.
Nilai Utama Kami: Kami tidak hanya menjual barang yang ada di rak. Kami mencari, menyesuaikan, dan mengirimkan produk yang paling sesuai dan hemat biaya untuk kebutuhan khusus Anda.
What is the process for purchasing power transformers from Instrava?
1. Pertanyaan (Kami akan menanggapi pertanyaan Anda dalam waktu 24 jam untuk mengonfirmasi spesifikasi dan memulai prosesnya.)
2. Penawaran Harga (Waktu penyampaian penawaran harga bervariasi tergantung pada jenis proyek dan persyaratan spesifik Anda. Untuk barang stok standar, penawaran harga akan disampaikan dalam waktu satu hari, sedangkan untuk pesanan khusus diperlukan waktu tiga hari atau jangka waktu yang disepakati bersama.)
3. Pemilihan Produk (Kami akan menyajikan 3–5 opsi produk beserta harganya untuk persetujuan Anda. Pada tahap ini, kami akan memverifikasi kapasitas produksi pabrikan serta sertifikasi nasional yang relevan.)
4. Kontrak, Pembayaran di Muka, dan Produksi (Pembayaran di muka dengan kode 40% diperlukan untuk memulai produksi di fasilitas yang memenuhi syarat. Untuk barang yang tersedia di stok, kami segera mengatur pengujian dan pengemasan produk.)
5. Pembayaran Tahap Awal (Setelah produksi dan pemeriksaan kualitas selesai dengan baik, 50% berikutnya dari jumlah total harus dibayarkan. Untuk barang stok, pembayaran ini dilakukan setelah pengemasan selesai. Jika jumlah transaksi tidak melebihi $50.000, sisa 60% dibayarkan.)
6. Pengiriman (Anda dapat menunjuk perusahaan pengiriman barang, atau kami dapat mengatur pengirimannya untuk Anda.)
7. Penerimaan Barang (Jaminan Kualitas Kami: Ketika nilai total pesanan Anda mencapai $50.000, Anda baru perlu membayar sisa 10% setelah menerima dan memeriksa kualitas produk. Kualitas produk kami yang akan membuktikannya.)
8. Layanan Purna Jual (Kami secara aktif menangani dan menyelesaikan masalah melalui saluran daring maupun luring. Kami sangat mengutamakan layanan purna jual, karena hal ini mencerminkan tanggung jawab dan reputasi kami—yang menjadi landasan pertumbuhan jangka panjang Instrava.)
What are the advantages of buying power transformers from Instrava suppliers?
Compared to factories, we offer a more objective and impartial assessment of the advantages and disadvantages of our products compared to those from different manufacturers. We provide you with a wider selection of types, ensuring the best cost-effectiveness for your project. Our 3-5% service fee saves you significant time in finding and comparing products.
What types of transformers can I buy from Instrava?
Dry-type transformers, low-voltage small oil-immersed distribution transformers below 35KV, high-voltage transformers above 66KV-220KV (if higher voltage such as 500KV is required, detailed communication is needed), pole-mounted transformers, pad-mounted transformers, box-type transformers, UPS transformers, rectifier transformers, frequency converter transformers and other multi-purpose transformers.
What are the long-term economic benefits of a 30-year maintenance-free transformer tank sealing structure?
The primary economic benefit is the near-total elimination of recurring operational expenditure (OPEX) associated with oil filtration, dehydrating breather replacements, and scheduled downtime. Instrava’s curated 220kV/230kV units utilize a fully enclosed oil tank equipped with a specialized sealing structure. This absolute seal prevents atmospheric moisture and oxygen from contacting the mineral oil, halting the chemical aging of both the fluid and paper insulation to guarantee a 30-year operational life without routine fluid reconditioning.
How does a core made with Hi-B silicon steel and cut on GEORG lines enhance substation performance?
A core engineered with top-grade Hi-B silicon steel and cut on CNC-controlled GEORG cutting lines maximizes transformer efficiency while minimizing magnetic hum. Hi-B silicon steel laminations possess exceptional magnetic permeability, which drastically lowers core and hysteresis losses. Precision CNC-milled cutting and rounding eliminate microscopic burrs and gaps at the joints, ensuring optimal magnetic flux distribution and significantly lower audible noise levels inside municipal or industrial substations.
Which connection groups and international standards are compatible with this 220kV/230kV high-voltage line?
This high-voltage transformer line is fully compatible with standard global utility architectures, supporting YNd11 and YNyn0 connection vector groups, alongside completely customizable primary and secondary configurations. To ensure seamless transnational grid integration, the series conforms to all major international grid codes and engineering criteria, including IEC, ANSI/IEEE, and CSA/CAN standards, backed by ISO 9001, ISO 14001, CE, SGS, and UL certifications.
Mengapa Mempercayai Instrava?
Kami memilih produsen dari sudut pandang yang netral dan tidak memihak, dengan selalu mengutamakan kepentingan terbaik Anda.
Keberadaan kami bergantung pada upaya kami dalam membantu Anda menemukan produk yang paling sesuai dengan kebutuhan Anda.
Berbasis di Tiongkok, kami dapat melakukan inspeksi langsung di lokasi terhadap lingkungan produksi dan kualitas produk.
Kami membantu Anda menghindari perantara yang menyamar sebagai pabrik.
Kami memudahkan layanan purna jual yang lebih lancar, sehingga menghilangkan kendala perbedaan zona waktu dan keterlambatan yang sering terjadi saat berurusan langsung dengan pabrik.
Tim multibahasa kami memastikan komunikasi yang efektif.
Bagi sebuah perusahaan rintisan di bidang perdagangan, setiap interaksi dengan klien merupakan kesempatan yang berharga—sebagai tanda bahwa Anda bersedia mempercayai kami dan memberi kami kesempatan untuk membuktikan diri.
Di era digital, meskipun informasi mudah diakses, kesalahpahaman sering kali mengaburkan rasa saling percaya di antara sesama manusia.
Instrava sepenuhnya bertumpu pada kepercayaan; hal ini merupakan filosofi inti kami dan landasan keberadaan kami di masyarakat. Inilah landasan utama bagi pertumbuhan jangka panjang kami serta komitmen kami untuk melayani masyarakat.
Mohon percayalah kepada kami.
