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No-Load Tap Transformer 8000kVA 35kv 25000kVA Low Partial Discharge & Compact Structure for Substations
US$60,000.00-200,000.00
1 Piece
Product specifications
Capacity
Product profile
Customization
AvailableApplication
Power, Electronic, Instrument, LightingPhase
ThreeModel NO.
SZ20Core
Core-type TransformerCooling Method
Oil-immersed Type TransformerWinding Type
Separated Winding TransformerCertification
ISO9001, CCC, ISO14001Usage
Rectifier Transformer, Power Transformer, Distribution TransformerFrequency Characteristics
Power FrequencyShape of Core
ODBrand
JncnFactory Tests
Routine Test, Type Test, IEC Standard TestIP Rating
IP23, IP54, IP65, IP67Design Standard
IECWarranty
2 YearsTransport Package
as Specified by The CustomerSpecification
Per customer specificationsTrademark
JNCNOrigin
ChinaHS Code
8504210000Production Capacity
50000Key features
Energy Efficiency: 20-30% reduction in no-load losses and 50-60% lower no-load current compared to standard specs.
Low Partial Discharge: Optimized construction ensures minimal partial discharge, low noise, and high reliability.
On-Load Tap Changer: Automatically maintains stable output voltage during grid fluctuations for power quality.
Compact Structure: Robust and compact design ensures transport stability and suitability for indoor/outdoor use.
High Short-Circuit Resistance: Enhanced structural integrity provides superior protection against short-circuit faults.
Full Customization: Offers full customization, minor customization, and flexible options based on designs or samples.
EPC Turnkey Services: Provides comprehensive engineering, procurement, and construction services for up to 220kV projects.
Certified Quality: ISO 9001, ISO 14001, CCC certified with rigorous 100% final inspection before shipment.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Chongqing PortAverage Response Time: >24h
AI-Powered supplier vetting
SummaryChongqing JNCN Electric Co., Ltd. is identified as a Chinese manufacturer/factory producing transformers, substations, switchgear, bus ducts, and related new-energy equipment. The supplier reports ISO 9001, ISO 14001, OHSMS18001, and ISO50001 certifications, and an SGS audit record valid from October 22, 2025 to October 21, 2026. Its stated capabilities include technical research, advanced testing and production equipment, more than 10 production lines, 11–20 years of R&D engineer experience, and 6–10 quality-control staff. Products are exported to several regions, with exports representing 21%–30% of total sales. However, overseas service infrastructure, 3D design, ODM/OEM, raw-material traceability, new-product launches, Fortune 500 cooperation, and after-sales capabilities are not substantiated in the provided data.
Supplier typeThe supplier is explicitly identified as a factory and Manufacturer/Factory, operating as a limited company in Chongqing, China. Its stated business is electrical and electronics manufacturing, with a product portfolio covering transformers, substations, switchgear, bus ducts, and new-energy equipment.
CertificationsThe supplier reports ISO9001, ISO14001, OHSMS18001, and ISO50001 certifications, while another record specifically lists ISO 9001 and ISO 14001. An SGS audit record is shown as valid from 2025-10-22 through 2026-10-21, supporting documented third-party audit coverage during that period.
R&D capabilityThe company describes itself as having strong technical development capabilities, advanced testing and production equipment, strong R&D with university partnerships, and continuous product development. Its R&D engineer experience is listed as 11–20 years, but new-product activity, 3D design services, ODM capability, and OEM capability are explicitly unknown.
Production capacityThe supplier is presented as an integrated production and manufacturing enterprise with advanced testing instruments and production equipment, more than 10 production lines, and a broad electrical-equipment portfolio. Its factory status and stated manufacturing scope provide explicit evidence of production capability.
Product Q&A
Q:Are you a manufacturer or a trading company?
A:
We are an integrated group company that combines R&D, manufacturing, sales, and engineering services. We own modern production facilities and have our own R&D team, which allows us to maintain direct control over product quality, technology, and delivery schedules. Furthermore, we offer professional EPC turnkey services, providing one-stop solutions from design and procurement to construction.
Q:What are your main products and do you offer customizations?
A:
Our core product lines include: 1. Energy-Saving Power Transformers: Dry-type transformers, oil-immersed transformers, compact substations. 2. Intelligent Complete Sets of Equipment: HV/LV switchgear, distribution cabinets, automation control systems. 3. New Energy Equipment: PV inverters, Power Conversion Systems (PCS), new energy boosting stations. 4. Industrial Electrical Equipment: Customized electrical solutions for specific industries (e.g., chemical, metallurgy). Yes, we specialize in cus
Q:What international standards and certifications do your products comply with?
A:
Our products are strictly designed and manufactured in compliance with International Electrotechnical Commission (IEC) standards. We are certified with ISO 9001 Quality Management System. Our key products (such as transformers and switchgear) also hold international certifications like CE. We are committed to meeting the entry requirements of various global markets.
Q:Can you provide EPC (Engineering, Procurement, Construction) services?
A:
Absolutely. We provide comprehensive EPC turnkey services for up to 220KV transmission & distribution projects and new energy projects. Our service covers: Engineering: Preliminary & detailed design, system integration, and optimization. Procurement: Sourcing, testing, and supply of all major equipment and materials. Construction: Civil works, equipment installation, system commissioning, and final handover. We ensure the project is completed on time, within budget, and meets the expected perfor
Q:How do you ensure product quality and reliability?
A:
We guarantee product quality through a multi-tiered approach: Source Control: We use high-quality raw materials and core components. Process Control: We implement a comprehensive ISO 9001 Quality Management System with strict inspections at every production stage. Final Testing: Every piece of equipment undergoes rigorous tests before shipment, including withstand voltage tests, partial discharge tests, and functional tests. Test reports are available. Warranty: We offer a standard warranty of 1
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