Views: 0 Author: Site Editor Publish Time: 2025-01-10 Origin: Site
Eco-friendly transformer is a type of transformer designed to be more environmentally friendly and energy-efficient throughout its entire lifecycle. Compared to traditional transformers, green transformers offer several advantages:
Material selection: The use of environmentally friendly materials, such as non-toxic insulating oil instead of traditional mineral oil.
Manufacturing process: Optimized manufacturing processes to reduce energy consumption and waste generation.
Performance improvement: Improved transformer efficiency to reduce losses and energy consumption.
Extended lifespan: Longer service life through improved design and materials, reducing replacement frequency.
Eco-friendly transformers are comprehensively considered from a full life cycle perspective. From raw materialprocurement, product design and manufacturing, testing, packaging and transportation, installation, use to recycling the "green" characteristics of the product are taken into account, embodying the concept of "eco-design". Specifically, the technical characteristics of eco-friendly transformers are mainly reflected in four aspects: high efficiency and energy saving, resource material saving, low carbon and environmental protection, and safety and reliability.
Currently, the main types of eco-friendly transformers include ：
three-dimensional wound core transformers
open-type dry-type transformers
amorphous alloy three-dimensional wound core open-type transformers
amorphous dry-type transformers
natural ester (vegetable insulating oil) oil-immersed transformers
silicone rubber insulated dry-type transformers
These eco-friendly transformers have been widely applied in various industries. With their high efficiency, energy saving, resource material saving, low carbon, environmental protection, and safety and reliability, green transformers provide users with excellent low-carbon and environmentally friendly transformer options.
The rapid growth of high-rise buildings has led to escalating demands on transformer performance. The load characteristics of high-rise buildings dictate specific requirements for transformer energy efficiency, size, noise, electromagnetic radiation, and fire resistance. Particularly, the installation of distribution substations on various floors of high-rise buildings makes the weight of transformers a major challenge for vertical transportation. Eco-friendly transformers, with their high efficiency, compact size, and low noise, offer effective solutions to these challenges.
Traditional methods for transporting transformers to upper floors primarily include the following:
Using a standard 2-ton elevator for whole-unit transportation：with limited capacity, it can only handle transformers up to 400kVA, failing to meet the demands of large-load equipment.
Disassembling the transformer for segmented transportation and reassembling it on the floor：the disassembly and assembly process can lead to increased transformer losses, magnetic leakage, and noise, and there are safety risks during on-site installation.
Using a standard 2-ton freight elevator to transport single-phase transformers and then connecting them into a three-phase transformer on the floor, which can also result in increased transformer losses, noise, and overall equipment weight and footprint.
Using a heavy-duty freight elevator (such as 3 or 4 tons) to transport transformers up to 1000kVA, but this occupies more building area and increases investment costs.
Transporting through the elevator shaft, but this has a long construction period and affects the normal operation of the building.
In conclusion, traditional methods of transporting transformers to upper floors have significant drawbacks. However, open-type three-dimensional wound core dry-type transformers provide an excellent solution to this problem. These eco-friendly transformers are compact, lightweight, have a small footprint, and are quiet, environmentally friendly, fireproof, explosion-proof, moisture-proof, and dustproof, ensuring safety and reliability. They also have low no-load losses and low no-load current, making them highly energy-efficient. A standard 2-ton elevator can accommodate a 1250kVA transformer. Open-type three-dimensional wound core dry-type transformers offer outstanding energy-saving performance, strong load capacity, and low noise. They can operate quietly under high loads for extended periods, effectively reducing power supply operating costs.
Are you familiar with "negative carbon" substations? For example, let's assume a substation is projected to generate 19,358.12 tons of carbon dioxide equivalent over its entire lifecycle. By adopting eco-friendly transformers, carbon sequestration through afforestation, and utilizing solar power, it can offset greenhouse gas emissions exceeding 20,000 tons of carbon dioxide equivalent, thus achieving "negative carbon".
Transformers are the primary source of carbon emissions in substations, accounting for over 90% of operational emissions. To reduce transformer-related carbon emissions, substations can opt for vegetable oil (natural ester) insulated transformers. Compared to traditional mineral oil, vegetable oil is biodegradable, more environmentally friendly, and offers superior fire resistance and insulation properties. Calculations show that the total lifecycle carbon dioxide emissions of vegetable oil transformers are approximately 90% lower than traditional transformers. This highlights the significant contribution of vegetable oil transformers in decarbonizing substations.
The load characteristics of rail transit systems (including municipal tunnels) are as follows:
Redundancy and low load rate: Rail transit systems have extremely high requirements for power supply reliability, and transformers are often operated in a redundant manner. However, due to significant differences in power consumption between peak and off-peak periods, transformers often operate at low loads for extended periods, resulting in high no-load losses.
Strict fire safety requirements: Tunnels and rail transit environments are enclosed, increasing the risk of fire. Transformers must therefore have excellent flame retardancy and non-toxicity.
High moisture resistance requirements: Underground environments have high humidity levels, which can degrade equipment insulation. Transformers must therefore have good moisture resistance and high partial discharge withstand capability.
Demand for miniaturization and lightweight: Due to limited underground space, transformers must be miniaturized and lightweight to reduce engineering costs and construction difficulty.
Vibration and noise control: Rail transit environments are subject to strong vibrations. Transformers must therefore have good vibration resistance and meet strict noise emission standards.
However, eco-friendly transformers, such as amorphous dry-type transformers and open-type dry-type transformers with their low no-load losses, low noise radiation, non-flammable or flame-retardant properties with minimal harmful gas emissions, moisture resistance, and low partial discharge, align well with the requirements for transformers in rail transit systems and tunnels.
To summarize，eco-friendly transformers offer a comprehensive solution for ultra-high-rise buildings, substations, and rail transit substations, providing safety, environmental friendliness, lightweight design, high reliability, low noise, and high energy efficiency.
