630 KVA Amorphous Metal Transformer
Description
Technical Parameters
Henan GNEE Electric Co., Ltd. is one of the leading manufacturers and suppliers of 630 kva amorphous metal transformer in China, also supports customized service with low price. Welcome to buy discount 630 kva amorphous metal transformer for sale here from our factory. If you have any enquiry about pricelist, please feel free to email us.
Product Introduction
The amorphous metal distribution transformer is highly versatile in applications. Ideal for urban distribution networks, it significantly cuts energy losses by up to 80% compared to traditional models, reducing operational costs for utilities. In commercial buildings like malls and offices, its low-noise operation and compact design make it suitable for indoor installations, ensuring stable power supply while minimizing environmental impact. For industrial settings with fluctuating loads, such as light manufacturing plants, it maintains high efficiency during both full and partial loads. Additionally, it's a perfect fit for renewable energy systems, enabling efficient power conversion in solar and wind farms, thus promoting sustainable energy use.
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630 kVA Amorphous Metal Transformer Technical Specifications
Finished amorphous distribution transformer
The Structure of Amorphous Metal Transformer
The 630 kVA Amorphous Metal Transformer features a compact and efficient structure designed for high energy savings and reliable performance. Below is a detailed breakdown of its key structural components and design characteristics:
1. Core Structure
Amorphous Metal Core:
Constructed from amorphous alloy strips (thin ribbons with a non-crystalline atomic structure), which offer extremely low core loss (up to 75% lower than traditional silicon steel cores).
Designed with a step-lap joint to minimize magnetic flux leakage and reduce no-load losses.
Core is coated with an insulating layer to prevent eddy current losses and enhance mechanical stability.
Core Design:
Typically configured as a three-phase five-limb structure (for three-phase models), allowing balanced magnetic flux distribution and efficient handling of unbalanced loads.
Compact size due to the high magnetic permeability of amorphous metal, reducing overall transformer volume by ~30% compared to conventional transformers of the same capacity.
2. Windings
Primary and Secondary Windings:
Made from high-purity oxygen-free copper or aluminum conductors, ensuring low resistivity and high current-carrying capacity.
Windings are arranged in a concentric cylinder structure (primary winding surrounding the secondary winding for oil-immersed types, or vice versa for dry-type designs) to optimize magnetic coupling and reduce leakage reactance.
Insulated with high-temperature-resistant materials (e.g., epoxy resin for dry-type transformers or oil-resistant paper for oil-immersed types) to withstand overloads and voltage surges.
Tap Changers:
Equipped with on-load or off-load tap changers (optional) to adjust voltage ratios and maintain stable output under varying input conditions.
3. Tank and Insulation System
Tank Design:
For oil-immersed transformers:
Fabricated from welded steel or aluminum alloy, providing mechanical protection and a hermetic seal for the insulating oil.
Features radiator fins or corrugated sidewalls to enhance natural convection and heat dissipation.
For dry-type transformers:
Encased in a rugged steel frame or epoxy resin casing, offering fire resistance, moisture protection, and low maintenance.
Insulation Medium:
Oil-immersed models use mineral oil or synthetic ester oil for cooling and insulation, with a moisture-absorbing breather to maintain oil quality.
Dry-type models rely on epoxy resin casting or air insulation, making them suitable for indoor or high-fire-risk environments.
4. Cooling System
Natural Cooling (ONAN):
Oil-immersed transformers utilize natural oil circulation and radiator fins for heat dissipation, ideal for low-noise, low-maintenance applications.
Forced Air Cooling (OFAF, when applicable):
Some models may include fans to enhance cooling during overloads, temporarily increasing capacity by 20–30%.
5. Accessories and Protection Devices
Buchholz Relay (for oil-immersed types): Detects internal faults by monitoring oil flow and gas accumulation.
Pressure Relief Valve: Releases excess pressure in case of internal faults to prevent tank rupture.
Temperature Indicator: Monitors winding and oil temperature, with alarms or tripping signals for overheating.
Low-voltage and High-voltage Bushings: Insulated connectors for electrical connections, made from porcelain or polymer materials.
6. Key Structural Advantages
Low Losses: Amorphous core reduces no-load losses, making it efficient for long-term idle or light-load scenarios (e.g., residential grids, commercial buildings).
Compact Size: Lightweight design (up to 40% lighter than silicon steel transformers) simplifies transportation and installation in space-constrained environments.
High Reliability: Robust construction with corrosion-resistant materials and tight tolerance control ensures durability in harsh climates (e.g., high humidity, temperature fluctuations).
Environmental Friendliness: Low noise (typically <50 dB) and reduced energy consumption align with green energy standards (e.g., IEEE, IEC efficiency regulations).
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Company Quality Policy
Our quality policy is: "Customer satisfaction is Gnee's pursuit." We uphold the principles of quality - first and customer - oriented. By relying on quality to thrive and excellence to win, we are committed to designing and manufacturing power transformers that meet diverse customer requirements, aiming for mutual development.
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