1000 kVA transformer are an important part of the power distribution network and are responsible for raising or lowering the voltage to the appropriate level for safe use. These transformers are widely used in various industrial, commercial and residential environments. In this comprehensive guide, we’ll dive into the key features, functions, applications, brands, prices, dimensions, weight, and other important details you should know when considering a 1000 kVA transformer. We’ll also explore why Evernew Transformers, China’s leading transformer manufacturer, is the ideal choice for your transformer needs.
What Is A 1000 kVA Transformer?
A 1000 kVA transformer is an electrical device that operates at a capacity of 1000 kVA (kilo volt amperes). The kVA rating indicates the transformer’s maximum capacity to handle electrical power. This type of transformer is typically used for medium-to-high power applications where voltage regulation is critical. By converting electrical power from one voltage level to another, it helps distribute energy more efficiently while protecting equipment from power surges or under-voltage conditions.
Transformers with a 1000 kVA rating can handle significant electrical loads, making them suitable for larger commercial buildings, industrial plants, utilities, and renewable energy systems.
Technological Advantages of Evernew Transformer
Evernew Transformer is a global leader in manufacturing 1000 KVA transformers, committed to delivering high-quality, reliable products for diverse power needs. Located in Nantong, Jiangsu, the company operates a 500-acre facility with advanced production and testing equipment, ensuring efficient manufacturing and strict quality control. Automated production lines and intelligent inspection systems guarantee precise and stable 1000 KVA transformers that meet international standards.
With years of expertise, Evernew Transformer drives innovation and optimizes production processes to ensure their 1000 KVA transformers meet various voltage and load requirements, providing exceptional power support in both industrial and grid applications.
What Is The Function Of A 1000 kVA Transformer?
The main function of a 1000 kVA transformer is to alter the voltage level to meet the needs of various electrical systems.
Step-Down Functionality: A 1000 kVA transformer is commonly used to reduce the high transmission voltage from the grid (e.g., 33 kV, 66 kV) to lower voltages (e.g., 400 V, 480 V) suitable for end-user equipment such as motors, lighting, and HVAC systems.
Step-Up Functionality: Conversely, a 1000 kVA transformer can be used in power generation or distribution to increase voltage for efficient long-distance transmission. For example, the output from a wind turbine or solar panel system might be stepped up to higher voltages for grid integration.
电压调节: By regulating the voltage supplied to electrical loads, the transformer prevents potential damage to equipment caused by voltage spikes or drops, thus ensuring stable operation.
隔离: Transformers also provide electrical isolation between the primary (high voltage) and secondary (low voltage) circuits, which enhances safety in electrical systems.
Top Brands of 1000 kVA Transformers
Several prominent brands manufacture 1000 kVA transformers, each offering distinct advantages. Some of the major brands in the market include:
- 西门子
- 施耐德电气
- 通用电气（GE）
- ABB
- 伊顿
While these brands are well established globally, Evernew Transformer, a leading Chinese manufacturer, offers competitive advantages over its international counterparts:
- Cost-Effectiveness: Evernew provides high quality transformers at a significantly lower price point due to the advantages of its efficient manufacturing processes and established supply chain.
- Superior Product Quality: All 1000 kVA transformers from Evernew are designed with state-of-the-art technology and pass strict CE, UL, and GOST certifications, ensuring compliance with international standards for safety, quality, and performance.
- Rapid Delivery: With a streamlined supply chain and a manufacturing facility capable of meeting large orders, Evernew guarantees faster delivery times than many global competitors.
- 能源效率: Evernew transformers meet the DOE energy efficiency standards, ensuring reduced energy losses and improved operational efficiency in the long term.
Evernew Transformer’s commitment to innovative design, affordable pricing, and quick lead times makes it an excellent choice for industries worldwide.
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Price Range of 1000 kVA Transformers
价格 1000 kVA transformer depends on its type and features. Here’s an overview of typical price ranges:
干式变压器: These are ideal for indoor use and require minimal maintenance. Prices range from $12,000 to $25,000, depending on brand and features like high-efficiency windings.
Pad-Mounted Transformers: Designed for outdoor installations, commonly used in utility and commercial power distribution. They typically cost between $14,000 and $30,000, based on specifications like weather-resistant coatings.
Oil-Immersed Distribution Transformers: Used for large-scale power distribution, these transformers cost between $15,000 and $35,000. Price varies based on voltage ratings, oil type, and design.
The size and weight of 1000kVA transformers vary according to their type, these transformers vary in size and weight, with dry type transformers being the smallest and oil immersed transformers being the largest, to suit different installation needs.
1. 干式变压器
| 参数 | 规格 |
|---|---|
| 重量 | 4500 – 6000 lbs (about 2000 – 2700 kg) |
| 尺寸 | 42” x 42” x 60” to 60” x 60” x 75” (Approx. 107 – 152 cm in height x width x depth) |
| Shape | Compact design for indoor installations, minimal maintenance requirements |
| 应用 | Commercial buildings, data centers, electrical distribution rooms |
| 材料 | Copper windings, epoxy resin insulation, silicon steel core |
| 冷却方法 | Air-cooled (no oil) |
| Installation Requirements | Does not need an oil pit, suitable for dry environments |
2. 垫装变压器
| 参数 | 规格 |
|---|---|
| 重量 | 5000 – 8000 lbs (about 2300 – 3600 kg) |
| 尺寸 | 72” x 60” x 75” to 90” x 72” x 90” (Approx. 183 – 229 cm in height x width x depth) |
| Shape | Larger design for outdoor installation on concrete pads |
| 应用 | Residential areas, power distribution, commercial facilities |
| 材料 | Copper or aluminum windings, silicon steel core, oil cooling system |
| 冷却方法 | Oil-immersed cooling |
| Installation Requirements | Requires installation on concrete platforms or ground, ideal for outdoor use |
3. Oil Immersed Distribution Transformer
| 参数 | 规格 |
|---|---|
| 重量 | 7000 – 12000 lbs (about 3200 – 5400 kg) |
| 尺寸 | 72” x 72” x 90” to 84” x 84” x 100” (Approx. 183 – 213 cm in height x width x depth) |
| Shape | Larger, designed for use in power substations and industrial applications |
| 应用 | Power transmission, factories, power stations, utility facilities |
| 材料 | Copper windings, silicon steel core, mineral oil cooling |
| 冷却方法 | Oil-immersed cooling |
| Installation Requirements | Suitable for outdoor installation in substations and power grids |
Impedance of 1000 kVA Transformer
The impedance of a 1000 kVA transformer is a critical parameter that influences its performance, voltage regulation, and overall efficiency. Impedance refers to the opposition to current flow in an alternating current (AC) circuit, affecting how a transformer interacts with the electrical grid. In this article, we will explore the impedance of 1000 kVA transformers, its importance, how it impacts system design, and what to consider when selecting a transformer for your needs.
What is Impedance in a Transformer?
Impedance in a transformer is a combination of both resistance and reactance, typically represented as a percentage of the transformer’s rated voltage. For a 1000 kVA transformer, the impedance value typically ranges from 4% to 7%, depending on the transformer type and its design. The impedance plays a major role in determining how much voltage drop occurs when the transformer is loaded.
How Does the Impedance of a 1000 kVA Transformer Affect Performance?
The impedance of a 1000 kVA transformer has several implications for transformer performance:
电压调节: A higher impedance results in a greater voltage drop under load, which can affect the quality of power delivered to the load. The impedance of 1000 kVA transformers must be carefully considered to ensure optimal voltage regulation.
Short-Circuit Current: The impedance of 1000 kVA transformers also determines the fault current in case of a short circuit. Lower impedance generally results in higher fault currents, which can impact protection settings.
效率: The impedance of 1000 kVA transformers directly influences losses during operation. Transformers with lower impedance typically experience lower losses, improving efficiency and reducing energy costs over time.
Impedance of 1000 kVA Transformer in Different Applications
The impedance of 1000 kVA transformers varies depending on the application. For example:
干式变压器: These often have slightly higher impedance values due to their insulation and cooling methods. The impedance of 1000 kVA dry type transformers can range between 5% and 7%, which affects their voltage regulation and load handling capabilities.
油浸式变压器: Typically, oil-immersed transformers have lower impedance, usually around 4% to 6%. This can result in better efficiency and voltage regulation compared to dry-type transformers.
Pad Mounted Transformers: The impedance of 1000 kVA pad mounted transformers is generally in the range of 5% to 6%, balancing efficiency and fault tolerance for outdoor and commercial use.
Why is the Impedance of 1000 kVA Transformer Important in System Design?
The impedance of 1000 kVA transformers plays a key role in designing electrical systems, especially in applications where power reliability and voltage stability are critical. When designing a power distribution network, the impedance of the transformer must match the system requirements to minimize voltage fluctuation, ensure protection against overloads, and maintain efficiency.
Choosing the right impedance for a 1000 kVA transformer ensures that the transformer operates within its ideal range, reducing the risk of damage and optimizing energy consumption.
How to Select the Right Impedance for Your 1000 kVA Transformer
When selecting a 1000 kVA transformer, it is important to consider both the rated impedance and the specific needs of your electrical system. Factors such as load type, distance from the power source, and fault protection requirements should guide your decision. A transformer with the appropriate impedance will offer:
- Better voltage regulation
- Lower energy losses
- Optimal fault protection
- Enhanced overall system performance
Installation of 1000 kVA Transformers
The installation process for a 1000 kVA transformer varies based on its type:
Dry Type Transformer Installation
- Location: Dry type transformers are suitable for indoor installations and require minimal maintenance. They are often used in commercial buildings, factories, or indoor substations.
- Installation Steps: Placement in a dry, clean area, electrical wiring connection, and testing of the transformer before commissioning.
Pad Mounted Transformer Installation
- Location: Installed outdoors, typically on a concrete pad.
- Installation Steps: A foundation is prepared, the transformer is placed on the pad, and electrical connections are made. Grounding and safety measures are important during this installation.
Oil-Immersed Distribution Transformer Installation
- Location: Oil-immersed transformers are designed for outdoor installations.
- Installation Steps: Requires careful preparation of the foundation, installation of the transformer, ensuring proper oil containment, and conducting safety checks during the installation process.
Main Materials of 1000 kVA Transformers
Transformers are made from a combination of materials designed for durability, efficiency, and safety:
Dry Type Transformers
- 绕组: High quality copper or aluminum conductors.
- 核心: Laminated silicon steel core to reduce energy losses.
- Insulation: High performance epoxy resin or polyester resin for insulation.
Pad Mounted Transformers
- 绕组: Copper or aluminum windings.
- 核心: Cold rolled grain oriented steel or silicon steel core.
- Insulation: Oil insulated for cooling and electrical insulation.
Oil Immersed Distribution Transformers
- 绕组: Copper or aluminum.
- 核心: Silicon steel core.
- 绝缘油: Mineral oil or ester-based fluid for cooling and insulation.
Common Voltages for 1000 kVA Transformers
Standard voltage ratings for 1000 kVA transformers include:
- 初级电压: 11 kV, 33 kV, or 66 kV
- 二次电压: 400 V, 480 V, or 690 V
Applications of 1000 kVA Transformers
- 商业建筑: Provide power distribution to high-rise buildings, shopping malls, and office complexes.
- Industrial Plants: Used for heavy-duty equipment like motors, machinery, and HVAC systems.
- 变电站: Vital components of electricity distribution systems, providing step-up or step-down voltage conversion.
- 可再生能源: Applied in wind and solar power systems for integration with the electrical grid.
- 住宅区: Step down high voltage from the grid for local distribution in densely populated areas.
结论
Choosing the right 1000 kVA transformer requires careful consideration of factors such as price, quality, installation needs, and manufacturer. Evernew Transformer offers high-quality, cost-effective, and efficient transformers with rapid delivery times, making it an ideal choice for power distribution solutions globally. Whether for industrial, commercial, or residential applications, Evernew’s 1000 kVA transformers meet international standards and provide the reliability needed for your electrical systems.
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