Why is there going to be a large demand for dry-type transformers in Mongolia in 2023
Writer： Hengfeng you electric Time：2023-07-07 views：times
The development of electricity in Mongolia has received government attention and investment in recent years. The following is the information from MARTIN, the sales manager of Hengfengyou Electric Appliances, regarding the development of electricity in Mongolia:
The Mongolian government launched the "Electricity Self Reliance" program in 2014, aiming to improve the domestic electricity production structure and enhance the stability and reliability of electricity supply.
Driven by this plan, Mongolia plans to achieve self-sufficiency in electricity by 2023 and export electricity by 2030.
In order to achieve this goal, the Mongolian government actively encourages foreign and private investment, and promotes the development of the power industry.
Mongolia has abundant coal and natural gas resources, which will contribute to the development of its electricity production.
The Mongolian government also plans to promote renewable energy sources such as solar and wind energy to reduce dependence on traditional energy and reduce environmental pollution.
The Mongolian government also cooperates with neighboring countries to jointly promote the development of regional electricity markets and improve the stability and reliability of electricity supply.
The power supply voltage in Mongolia is the same as that in China, at 220V and 50Hz. However, the phase voltage between the live wire and the zero wire is * * 230V, and the line voltage between the live wire and the live wire is 400V.
What type of power transformer is mainly used in Mongolia and why
Inner Mongolia mainly uses the following types of power transformers:
SCB13 dry type transformer.
S11 series oil immersed transformers.
S13 oil immersed power transformer.
SZ11 on load voltage regulating transformer (35KV).
SCB10 all copper dry type transformer.
SGB11 non encapsulated H-class dry type power transformer.
These types of power transformers are widely used not only because of their stable performance, but also due to the climatic conditions and environmental characteristics of Inner Mongolia. These transformers can adapt to the harsh environment in Inner Mongolia, ensuring the stability and sustainability of power supply.
The technical characteristics of dry type transformers include the following aspects:
(1) Dry type power transformer is a new type of transformer with multiple advantages, and its load core can operate safely, fireproof, and pollution-free at the same time.
(2) Dry type power transformers have excellent performance, with high impact toughness, strong resistance to short circuit faults, small partial discharge, good heat resistance, high stability, and long service life. It adopts a pollution-free, low noise, environmentally friendly and energy-saving design, with significant environmental and energy-saving effects, and is maintenance free. The dry type power transformer has good heat removal function and can maintain strong operating capacity under overload working conditions. It has excellent waterproof function and can operate in extreme environments such as high temperatures.
(3) Dry type power transformers can also be equipped with sound temperature measurement and protection system software, such as intelligent data signal temperature control system software, which can automatically identify and perform on tour, display the operating temperature of three-phase windings, automatically start and stop centrifugal fans, set alarm, power outage and other functional modules. Dry type power transformers have small size, light weight, small footprint, and low installation cost.
Hengfengyou has recently exported multiple 1600kva dry-type transformers in Mongolian, and the equipment is currently operating well. Hengfengyou Electric Group mainly produces
10kV, 35kV, 11kV, 20kV three phase expoxy resin cast dry type transformers,
distribution boxes, transmission towers, cables and other power transmission and distribution products. 30 years of experience in manufacturing power transformers and other transmission and distribution equipment. Hengfengyou Electric will provide you with the best electrical product solutions. WhatsApp:+86158 5325 2696 (Jack)+86158 5321 8976 (Olivia) info@hengfengyou.com
https://www.hengfengyou.com 】
What are the main points that Mongolia focuses on when purchasing dry-type transformers
Specifications: The specifications and models of Mongolian dry-type transformers are selected based on electricity demand and grid requirements. When purchasing, it is necessary to specify the required parameters such as capacity, voltage level, and protection method.
Quality: The quality of Mongolian dry-type transformers is very important, and it is necessary to choose high-quality and reliable brands and manufacturers to ensure their stable operation during use and provide long life and efficient power transmission.
Safety: Mongolian dry-type transformers need to comply with relevant safety standards, such as explosion-proof, fireproof, and leakage prevention. When purchasing, it is necessary to consider these safety factors and choose products with relevant certifications.
The anti leakage requirements for are as follows:
Insulation resistance: At a temperature of 20 ℃, the insulation resistance of transformers of the same brand, capacity, and voltage level is generally not less than 100M Ω.
Power frequency withstand voltage: Transformers of the same brand, capacity, and voltage level generally have a power frequency withstand voltage of 3Un ten times.
Dielectric response: For 2n~3 years or 11kV, 1kV power transformers, the limit of dielectric response should not exceed 3o, 1kV power transformers when applying 2Un voltage, and the limit of dielectric response should not exceed 30 when applying 2Un voltage.
Partial discharge: In transformers with voltage levels of 1kV and below, when the partial discharge test is only conducted on oil-immersed transformers, the discharge capacity should not exceed 3 () pC.
No load current: under normal power supply, the no-load current of the transformer shall not exceed the following values: (1) no more than 1% for the transformer with Nameplate capacity less than 1600KVA, and (2) no more than 2% for the transformer with Nameplate capacity greater than or equal to 16OkVA.
Temperature rise: The
temperature rise of each part of the transformer during operation should meet the following requirements: (1) the
temperature rise limit of the winding should not be less than 60 ℃; (2) the temperature rise limit of the transformer oil surface measured by a thermometer should not be less than 55 ℃. (3) The top oil temperature rise limit measured by a thermometer shall not be less than 65. (4) The temperature rise caused by overheating of the cooling device is not limited.
In addition, there is leakage current. When the rated voltage of dry-type transformers is 220kV or below, it should not exceed AS-N or 1; When the rated voltage is less than 3 pairs, it should not exceed ± 2.5 percentage.
appendix
The climate and environment in Mongolia have a certain impact on power transformers.
Most areas of Mongolia have a continental temperate grassland climate, with long and cold winters and short and hot summers, with spring and autumn connected. There are different natural geographical features such as grasslands, deserts, and mountains that can have an impact on the operation and lifespan of power transformers.
Firstly, the severe cold temperatures in winter may affect the operation of power transformers. Low temperature can lead to poor cooling effect of transformer oil, thereby increasing the load and temperature of the transformer. This may have a certain impact on the insulation material and structure of the transformer, and even lead to faults. Therefore, in response to the severe cold climate in Mongolia, it is necessary to choose transformers suitable for low-temperature environments and ensure that the transformers operate within the normal load range to avoid overloading.
Secondly, the high temperature weather in summer may also have an impact on power transformers. High temperature will increase the load on the transformer, causing its temperature to rise. If the transformer is operated for a long time in a high-temperature environment, it may lead to accelerated aging of the insulation material and even faults such as short circuits. Therefore, in high-temperature environments, appropriate cooling measures need to be taken, such as installing heat dissipation equipment or adding ventilation facilities, to reduce the temperature of the transformer.
In addition, due to the harsh geographical and climatic conditions in Mongolia, weather such as strong winds and sandstorms may have an impact on power transformers. For example, strong winds may cause vibrations in transformers, increasing the risk of mechanical failures; Dust storms may cause erosion and damage to the outer shell and internal structure of transformers. Therefore, when designing and selecting transformers, it is necessary to consider the impact of these adverse weather conditions and choose transformers with strong wind sand resistance and corrosion resistance.
In addition, due to the significant climate change in Mongolia, the design and configuration of power transformers need to be optimized based on the climatic conditions of different regions. For example, for areas with particularly cold winters, it is necessary to select transformers suitable for low-temperature environments and ensure that they can operate within the normal load range; For areas with high temperatures in summer, corresponding cooling measures need to be taken to reduce the temperature of transformers; For areas with frequent adverse weather conditions, it is necessary to choose transformers with strong wind sand resistance and corrosion resistance.
In addition, appropriate maintenance and repair plans need to be developed based on needs. As the normal operation of power transformers is crucial for ensuring power supply stability, it is necessary to regularly inspect and maintain the status of transformers. In the climate environment of Mongolia, maintenance personnel need to regularly clean, inspect, and replace components of transformers to ensure their normal operation. At the same time, it is also necessary to establish a comprehensive emergency response mechanism for faults and issues that may arise in a timely manner.
In summary, the climate and environment in Mongolia have a certain impact on power transformers. In order to ensure normal operation under the climatic conditions of Mongolia, it is necessary to select transformer types and configuration schemes suitable for different climatic conditions, and take corresponding maintenance and repair measures to ensure its stability and reliability.
