This 1000 kVA oil-immersed power transformeradopts new high-permeability low-loss silicon steel sheets and precision lamination technology for lower no-load loss and noise. Layered high-purity copper/aluminum windings deliver high insulation strength, stable structure and reduced load loss, improving overall power conversion efficiency. The fully sealed thick steel tank with premium insulating oil and large corrugated radiators ensures efficient natural circulating heat dissipation, adapting to harsh outdoor conditions of high temperature, rain, dust and large temperature differences. Fitted with an off-circuit tap changer for multi-level voltage regulation, it stabilizes output against grid fluctuations. Compliant with IEC 60076 standards, the transformer features excellent shockproof, corrosion-resistant and short-circuit-resistant performance, supporting long-term maintenance-free stable operation for 50/60Hz high-power distribution systems.
Production Parameters
|
Parameter |
Specification |
|
Rated Capacity |
1000kVA |
|
Phase / Frequency |
Three-phase / 50Hz/60Hz |
|
High Voltage Rating |
10kV / 11kV / 20kV (Customizable) |
|
Low Voltage Rating |
0.4kV / 0.415kV (Customizable) |
|
Cooling Method |
ONAN (Oil Natural Air Natural) |
|
Voltage Regulation |
Off-circuit tap regulation ±2×2.5% / ±5% |
|
Vector Group |
Dyn11 / Yyn0 (Optional) |
|
Core Material |
Low-loss cold-rolled silicon steel sheet |
|
Winding Material |
High-purity Copper / Aluminum (Optional) |
|
Temperature Rise Limit |
Top oil temperature ≤60K, Winding temperature ≤65K |
|
Execution Standard |
IEC60076, GB/T 1094 |
|
Application Scenarios |
Large factories, PV & wind power stations, commercial parks, municipal power grids, industrial & mining power distribution |
Product Advantages
Large Capacity & Low Energy Loss
Optimized for high-power power distribution working conditions, it features lower core and winding loss parameters and high power conversion efficiency. It maintains low energy loss during long-term full-load operation, significantly reducing power consumption costs for industrial and commercial plants and large power stations with outstanding energy-saving benefits, perfectly suitable for high-power continuous power supply scenarios.
01
Reliable ONAN Cooling & Stable Temperature Rise
Adopting upgraded enlarged corrugated heat dissipation structure with larger heat dissipation area and sufficient cooling margin. It relies on natural insulating oil circulation for heat dissipation without fan assistance, delivering low operating noise and low failure rate. It maintains balanced and stable temperature rise under full load, short-time overload and high-temperature summer environments, avoiding overheating tripping and shutdown failures.
02
Fully Sealed & Maintenance-free
The fully automatic welded and fully sealed structure equipped with high-quality aging-resistant seals completely isolates rainwater, moisture, dust and corrosive air, effectively preventing insulating oil from moisture, oxidation and aging. It requires no frequent oil refilling or replacement with extremely low maintenance workload. The anti-corrosion and weather-resistant body greatly prolongs outdoor service life.
03
Wide Voltage Regulation Range & Strong Adaptability
Equipped with a high-precision multi-grade off-circuit tap changer, it flexibly adjusts the transformation ratio according to on-site grid voltage fluctuation for accurate voltage stabilization. It effectively solves unstable voltage problems in remote construction sites, photovoltaic grid connection and grid terminal areas, adapting to various complex high-power power distribution scenarios.
04
Strong Short-circuit Resistance & High Safety
The windings adopt reinforced insulation and fastening technology with high mechanical strength, strong impact and deformation resistance. It resists instantaneous grid short circuit and surge current impact without breakdown, deformation or burnout. The stable operation and sufficient overload margin ensure continuous, safe and stable power supply for high-power loads.
05
FAQ
Q: What are the main application scenarios of 1000kVA oil immersed transformers?
A: 1000kVA is a mainstream high-power industrial capacity, suitable for large factories, industrial parks, commercial complexes, large photovoltaic and wind power grid-connected projects, municipal power grid expansion, mining sites and centralized residential areas. It can operate stably as the main power distribution transformer under long-term full-load conditions.
Q: What is the maximum load power of a 1000kVA oil immersed transformer?
A: The safe and effective load is about 800kW under normal working conditions, and it can withstand 110%~120% short-term overload impact. It is recommended to control the long-term operating load within 80% of the rated capacity to effectively extend service life, reduce loss and avoid high-temperature aging.
Q: Does outdoor installation require rain protection?
A: Designed as a fully sealed outdoor type, the transformer is inherently rainproof, dustproof, moisture-proof and anti-corrosive, allowing direct open-air installation. A simple protective shed can be equipped in rainy, humid and strong corrosion areas to further extend the service life.
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