Welcome to the official website of Luoyang AISITE Transformer Co., LTD

35KV Oil Immersed Transformer
Type: Oil Immersed Transformer/ Oil Filled Transformer Phase: Three-phase Voltage Range: 35kV-38.5kV Vector Group: Yyn0; Dyn11
keyword:
35KV Oil Immersed Transformer
DESCRIPTION
Product Introduction
35kV oil-immersed transformer (also known as oil filled transformer) is widely used in medium to high-voltage electrical systems for stepping up or stepping down voltage levels. It is typically installed in power distribution networks, substations, or industrial facilities. The term "35kV" refers to its rated high-voltage capacity, making it suitable for handling substantial electrical loads and ensuring efficient energy transmission over long distances.
Features and Strengths
1.The 35kV series transformers have the advantages of low loss, low noise, strong lightning protection and anti-sudden short circuit capability, and beautiful appearance.
2.The transformer has four remote functions of "remote signaling, remote measurement, remote adjustment, and remote control", which can be remotely controlled by a computer to realize unmanned substation operation.
Structural features:
Oil-immersed/filled design: The winding and core of the transformer are immersed in insulating oil. This design can effectively improve the heat dissipation performance of the transformer and ensure that the transformer can operate stably in a high temperature environment.
Winding structure: Multi-layer cylindrical or continuous windings are usually used to increase the mechanical strength and electrical performance of the windings.
Core structure: The core is the magnetic circuit part of the transformer, which is generally made of high-quality cold-rolled silicon steel sheets stacked to reduce magnetic flux loss and no-load current.

Technical Specification
Model | Rated power(kVA) | Rated primary voltage (kV) | Tapping(%) | Rated secondary voltage(no-load)(kV) | Vector group | No-load losses(W) | No-load current(%) | Rated impedance(%) |
S13-M-30 | 30 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 80 | 2.3 | 4 |
S13-M-100 | 100 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 150 | 1.8 | 4 |
S13-M-200 | 200 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 240 | 1.5 | 4 |
S13-M-400 | 400 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 410 | 1.3 | 4 |
S13-M-500 | 500 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 480 | 1.2 | 4 |
S13-M-800 | 800 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 700 | 1.0 | 4.5 |
S13-M-1000 | 1000 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 830 | 1.0 | 4.5 |
S13-M-1250 | 1250 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 970 | 0.9 | 4.5 |
S13-M-1600 | 1600 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 1170 | 0.8 | 4.5 |
S13-M-2000 | 2000 | 6/6.3/10/10.5 | ±2*2.5 ±5 | 0.4 | Yyn0 Dyn11 | 1510 | 0.8 | Customized |
S13-M-2500 | 2500 | ±2*2.5 ±5 | 0.4 | 0.4 | Yyn0 Dyn11 | 1780 | 0.7 | Customized |
S13-M-3150 | 3150 | ±2*2.5 ±5 | 0.4 | 0.4 | Yyn0 Dyn11 | 2100 | 0.7 | Customized |
Configurations

1 | Oil filter valve | 17 | Oil drain valve |
2 | Conservator | 18 | Jacking boss |
3 | Buchholz relay | 19 | Stopper |
4 | Oil filter valve | 20 | Foundation bolt |
5 | Pressure-relief vent | 21 | Grounding terminal |
6 | High-voltage bushing | 22 | Skid base |
7 | Low-voltage bushing | 23 | Coil |
8 | Suspension lug | 24 | Coil pressure plate |
9 | B C T Terminal | 25 | Core |
10 | Tank | 26 | Terminal box for protective devices |
11 | De-energized tap changer | 27 | Rating plate |
12 | Tap changer handle | 28 | Dial thermometer |
13 | Fastener for core and coil | 29 | Radiator |
14 | Lifting hook for core and coil | 30 | Manhole |
15 | End frame | 31 | Lifting lug |
16 | Coil pressure bolt | 32 | Dial type oil level gauge |
Applications
Industrial: In the heavy-duty market, oil-immersed distribution transformers are used to step down the high voltage of nuclear power plants to levels suitable for machinery and equipment. Their ability to handle high loads and meet tough challenges makes them ideal for industrial environments.
Commercial: Shopping malls, office buildings, and various other commercial centers use oil-immersed voltage converters to efficiently distribute electricity.
Residential: In residential areas, these transformers provide the final voltage correction before electricity enters homes. Their longevity and efficiency help maintain a stable power supply.
Energy companies: Utility companies rely on oil-immersed transformers to manage the flow of electricity throughout their vast networks. Their ability to handle high voltages and provide constant efficiency is essential to meeting the needs of large populations.

Production Process

Manufacturer View

FAQ
Q: How safe are oil-immersed transformers, particularly regarding fire risk?
A: Modern designs ensure safety. They use fire-resistant insulating oils (e.g., mineral oil meeting IEC 60296 or biodegradable ester fluids) within robust, sealed tanks. Pressure relief devices activate safely during internal faults, and designs comply with strict international safety standards (IEC).
Q: Is oil leakage a concern, and what maintenance is required?
A: Our transformers feature fully sealed construction (e.g., corrugated tanks or welded conservator tanks), minimizing leakage risk. High-quality insulating oil maintains stable chemical properties under normal operation. Maintenance primarily involves periodic oil sampling/testing and condition monitoring, reducing long-term upkeep.
Q: How are oil-immersed transformers protected during shipping?
A: We provide export-grade packaging: robust wooden crates, internal bracing/shock absorption, oil level monitoring, pressure gauge protection, and desiccants. Detailed transport and handling instructions ensure secure delivery.
Q: Are special foundations or space requirements needed for installation?
A: A level, robust foundation is essential to support the weight and minimize vibration. We supply precise dimensional drawings, foundation specifications, required clearances (safety zones), and ventilation guidelines for proper site preparation and installation.

Why Choose US?
Rich Production Experience
With 15-year experience of production and sales, our transformers have been successfully exported to over 50 countries and regions, including Brazil, Tanzania, South Africa, etc.
Full Life-Cycle Support Service
We provide comprehensive technical support at ever stage of operation of your purchased equipment.
Professional Sales Team
Our globally-experienced sales engineers provide tailored power solutions and precise technical guidance, ensuring optional project fit for your specific requirements.
Pursue Innovation and Excellence in Serving Customers
Our technical and sales team are committed to providing customized solutions with cutting-edge technology that solve the toughest challenges facing electricity supply and meet the most stringent needs defined by the industry.
Previous page
Previous page
Related products
Related products
Leave a message
Factory Address:500 meters southeast of Yilong Bridge in Yichuan, Luoyang, China