Oil-immersed Neutral Earthing Transformer-34.5kV 35kV 36kV
| Brand | Vziman |
| Model NO. | Oil-immersed Neutral Earthing Transformer-34.5kV 35kV 36kV |
| Rated voltage | 36kV |
| Rated frequency | 50/60Hz |
| Cooling mode | ONAN |
| Series | DKSC |
- Wide Voltage Adaptability & Strong Versatility:Supports voltages up to 123 kV, with customizable capacity and tap positions. Compatible with 50/60 Hz grids and compliant with IEC, ANSI and other international standards, meeting diverse needs of global medium and high-voltage power projects.
- Premium Insulation & High Reliability:Adopts high-grade insulating oil and multi-layer insulation structure to enhance insulation strength and arc resistance. The fully sealed corrugated tank isolates internal components from air and moisture, preventing oil oxidation and insulation aging for over 30 years of stable operation. Passed strict lightning impulse and short-circuit withstand tests with excellent fault resistance.
- Optimized Thermal Management & Efficient Heat Dissipation:Scientifically designed internal oil flow channels and optimized axial-radial heat dissipation structures reduce winding hot-spot temperature. Equipped with high-efficiency cooling fins, it ensures stable operation under full load or overload conditions.
- Compact Structure & Easy Maintenance:Integrated design reduces overall size and weight for convenient transportation and on-site installation. Centralized layout of external interfaces and monitoring components simplifies daily inspection and cuts O&M costs.
- Low-Noise & Environmentally Friendly Operation:Step-lap core lamination and elastic damping components reduce noise to ≤60 dB at 1m distance. The insulating oil complies with IEC 60296 environmental standards, featuring recyclability and non-toxicity with zero environmental pollution.
- Optional Intelligent Monitoring & Precise Fault Warning:The optional intelligent system monitors key parameters (oil temperature, oil level, partial discharge, etc.) in real time. Supporting IEC 61850 protocol, it enables remote data transmission and fault early warning to realize intelligent O&M.
| Neutra Earthing Transformer Technical Specifications | |
| Type | Oil-type: up to 123 kV (BIL: 450 kV class) Dry-type: up to 36 kV (BIL: 170 kV class) With auxiliary winding on request. |
| Power | up to 2000kVA |
| Voltage | up to 36kV |
| Current | 3000A |
| Duty seconds | 10/30/60 or others |
| Cooling method | ONAN, AF |
| Frequency | 50/60Hz |
| Transformer oil | Mineral oil, FR3 oil, Silicon oil ，Midel 7131 and other oil as required by customers |
| Paint corrosion resistance | C4 and C5-M |
| Standard | IEC , AS, EN, IEEE, GOST |
| Vertor group | ZNyn1 ZIAZIG ZN0 zyn11 |
| Installation | indoor /outdoor |
| Ambient Temperature | -30 +55 ℃ |
Oil-immersed Neutral Earthing transformer, the design have Variable shape,Terminal Box Can design from Top also can from side.The Netural Bushing can be also in the same termimal with HV
Oil-immersed Neutral Earthing Transformer Design and modeling diversification
It is widely used in medium and high-voltage power systems (such as 10kV, 35kV, 66kV, 110kV) that adopt ungrounded, impedance-grounded or arc-suppression-coil-grounded neutral point modes, effectively improving the system's ground fault handling capability.
Q:What routine tests are required for neutral earthing transformers before commissioning?
A:Pre-commissioning tests include insulation resistance measurement, dielectric loss tangent test, winding resistance measurement, short-circuit impedance test, oil chromatography analysis and lightning impulse test, to verify the electrical performance and safety of the transformer.
Q:Can an neutral earthing transformer be customized to meet the requirements of a specific power system?
A:Yes. Professional manufacturers can customize parameters such as rated capacity, tap position, tank structure, and protection device configuration according to the system's voltage level, fault current characteristics, and installation environment to achieve optimal matching.
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