Xi'an Simo Electric Machinery GroupSpecializing in the production of high-voltage large motors, DC motors, inverter motors...
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Totally enclosed liquid resistance starter cabinet

Totally enclosed liquid resistance starter cabinet

全封闭型液体电阻起动柜是一种高效、可靠的电机启动与控制设备,专为大功率异步电机启动设计,广泛应用于冶金、矿山、电力、石化及大型工业装备。柜体采用全封闭设计,内置液体电阻,实现启动电流平稳控制,降低机械冲击和电网冲击,提高设备运行寿命。

该起动柜结构紧凑、密封性好,液体电阻冷却效率高,可在重载、高温及潮湿环境下长期稳定运行。柜体可根据客户需求定制额定功率、电压等级及控制模式,满足各种工业系统启动要求。

  • 全封闭结构,密封防护性能优异

  • 液体电阻启动,降低启动电流和机械冲击

  • 高可靠性设计,适应高温、潮湿、重载环境

  • 可定制功率、电压等级和控制模式

  • 提升大功率电机启动效率和安全性

广泛应用于:大型异步电机启动、矿山提升机、冶金轧机、石化泵与压缩机及其他高功率工业设备的电机控制系统。

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全封闭型液体电阻starter cabinet:高性能电机起动解决方案

在大功率电机起动领域,Totally enclosed liquid resistance starter cabinet正以其卓越的技术性能和适应恶劣环境的能力,成为工业应用中的理想选择。

在工业电机控制领域,Totally enclosed liquid resistance starter cabinet是专为大中型绕线式异步电动机设计的先进起动设备。它通过在电机转子回路中串入特殊配制的液体电阻,并利用极板移动来改变电阻值,实现电动机的平滑无冲击起动

全封闭型液体电阻起动柜
Totally enclosed liquid resistance starter cabinet

这种起动柜采用全封闭结构设计,配备独特的自循环冷却系统和完善的密封措施,有效解决了传统液体电阻起动器电解液过快蒸发、无法连续起动的问题


一、工作原理与技术特点

1. 智能起动原理

全封闭型液体电阻起动柜基于在电机转子回路中串入液体电阻的原理工作。当起动器接收到电机起动信号时,一台小功率伺服电机带动极板移动,改变极板间的相对位置,使串入转子回路的液体电阻由大到小作无极变化

当电阻值减小到最低时,短接接触器闭合,使电机转子星点直接短接,从而实现电动机的低电流大转矩平滑起动。这种智能化的起动方式有效减小了起动电流,避免了对电网的冲击。

2. 全封闭技术优势

  • 完善密封系统:柜体和水箱采用全封闭结构,各连接部位均设有精密密封措施,包括升降绝缘杆部位、定极板引出排部位及电解液箱与箱盖之间都配备了专门的密封装置
  • 自循环冷却:设备配备循环泵,组成由外部循环组件和内部循环管件构成的自循环冷却系统,能快速散发电解液箱内产生的热量
  • 广泛环境适应性:特别适合在年降水量不足200毫米的干旱少雨气候环境中长时间运行,解决了传统液体电阻起动器在恶劣环境下易失效的问题

二、核心结构与设计创新

1. 模块化结构设计

全封闭型液体电阻起动柜采用Modular design concept,主要由全封闭箱体、接触器安装箱、控制箱和循环系统等部分组成。这种设计不仅提高了设备的可靠性,也使维护和检修更加安全方便。

  • 全封闭箱体:只有前封板为活动部件,其余各面均为全封闭结构,确保防护等级达到IP54以上,有效防止灰尘、湿气和腐蚀性气体侵入
  • 专用电解液箱:内部安装有绝缘材料特殊制作的升降架、动极板、定极板等部件,各极板间相互绝缘,保证了三相电阻的平衡性
  • 极板拖动机构:采用蜗轮蜗杆升降机作为传动机构,通过绝缘杆与电解液箱内的升降架连接,传动平稳、可靠且无噪声

2. 创新密封技术

全封闭型液体电阻起动柜在密封技术方面进行了多项创新:

  • 升降绝缘杆密封:采用特殊设计的密封套件,确保绝缘杆在升降过程中电解液箱内的水汽不外泄
  • 定极板引出排密封:在引出排部位设置多层密封结构,防止电解液沿引出排渗漏
  • 泄压阀密封:泄压阀内设有经过精确计算的配重,正常情况下保持密封,当电解液箱内气体压力增大到一定值时自动顶开,释放压力

三、性能特点与优势

全封闭型液体电阻起动柜具有多项卓越的性能特点:

  • 起动电流小:起动电流小于电机额定电流的1.3倍,显著降低起动过程中的电网冲击
  • 连续起动能力:热容量大,可连续起动5~10次,满足频繁起动的工况需求
  • 低压起动能力:在电网电压不稳或偏低的情况下仍能顺利起动,6千伏电机在5.5千伏、380伏电机在340伏时可正常起动
  • 平滑无冲击:起动过程对机械设备无机械应力冲击,可延长机械设备及电机的使用寿命
  • 维护简便:全部操作自动化,安装、维护方便,大大降低了检修频率

IV. Application areas and scenarios

全封闭型液体电阻起动柜可广泛应用于以下领域:

  • 重工业领域:适用于水泥、化工、钢铁、冶金、矿山等行业75-10000KW绕线式异步电动机的重载平滑软起动
  • 恶劣环境:特别适合在年降水量不足200毫米的干旱少雨气候环境中长时间运行
  • 特殊工况:适用于在一定时间内需要连续多次起动的场合,以及电网电压不稳或偏低的工矿企业

该设备常用于球磨机、轧钢机、破碎机、风机等传动设备中绕线电动机的起动,是频敏变阻起动柜的理想替代产品

五、技术参数与规格

全封闭型液体电阻起动柜的主要技术参数如下:

参数项目技术规格
适用电机绕线式异步电动机
rated voltage380V~10KV
功率范围75KW~10000KW
environmental temperature-25℃~+50℃
海拔高度≤2000米
protection classIP54以上
起动次数连续5~10次
相对湿度≤90%

六、选型与安装指南

1. 选型注意事项

在选择全封闭型液体电阻起动柜时,需提供以下信息:

  • 电动机型号、额定功率、额定转子电流、转子电压和额定转速
  • 电动机拖动的负载特征(工况说明)
  • 安装环境条件,如有无特殊使用要求
  • 柜体表面颜色等外观需求

2. 安装环境要求

为保证全封闭型液体电阻起动柜的正常运行,安装环境应满足:

  • 周围无显著摇动和冲击振动
  • 无腐蚀性气体
  • 安装倾斜度不超过
  • 没有火灾及爆炸危险的场所
  • 电源要求:三相四线交流380V±10%

七、维护与故障处理

全封闭型液体电阻起动柜的维护工作相对简单:

  • 定期检查:定期检查液位是否在正常范围内,当液面低于液位线时,需在停机断电情况下通过加水孔注入蒸馏水
  • 密封检查:定期检查各密封部位是否完好,确保无泄漏现象
  • 循环系统检查:检查循环泵及循环管路是否正常运行,确保冷却效果
  • 保护功能验证:定期验证液阻超温报警、低液位、起动超时停机等保护功能的可靠性

全封闭型液体电阻起动柜特别适合在干旱少雨等特殊环境中使用. its完善的全封闭结构独特的自循环冷却系统,确保了设备在恶劣工况下的稳定运行

随着工业技术的不断发展,全封闭型液体电阻起动柜将在更多行业和领域展现其价值,为工业企业提供可靠、经济的大中型电机起动解决方案

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Simo motorsAfter-sales service policy: quality-oriented, the user first!

Sincere, intimate, and devoted, Sigma will always be attentive.

preamble

Thank you for choosing Sigma Motor products. As an enterprise with many years of experience in motor manufacturing, Sigma Motor always insists on “Quality oriented, customer first”For the purpose, through the perfect service system, to ensure that every customer can enjoy efficient and professional after-sales service.

Our products have been awarded the honorary titles of “High Quality Products”, “China Famous Brand Products”, “National Inspection-free Products” and “China Well-known Trademark” for many times by provinces, cities and ministries. Famous Trademark" honorary title. In order to further enhance customer experience, we have formulated this after-sales service policy, aiming to provide customers with comprehensive, fast and satisfactory service guarantee.

I. Quality Assurance Commitments

Sigma Motor implements comprehensive quality control in strict accordance with international standards, national standards, machinery industry standards and enterprise standards:

  1. All products are listed in the “GB/T 19001-2008/ISO 9001:2008 quality management system”Production is carried out under effective operation to ensure that raw materials are strictly and perfectly inspected from the time they enter the factory to the time the products leave the factory.

  2. Commitment that all products offered areNew and unusedand meets the quality requirements specified in the user's contract.

  3. Adhere to the quality management system in accordance with “GB/T 19001-2000 idt ISO 9001:2000 standard”, and keep the quality management system running effectively.

Second, pre-sale service content

To help customers make the best choice, Sigma Motors offers comprehensive pre-sales support:

  • Specialized technical consulting: Receive inquiries from customers about the business and technical aspects of motors, and answer all kinds of questions from customers.

  • Personalized Solutions: Objectively introduce the performance and characteristics of Sigma's motor products and provide customized power solutions according to customer needs.

  • Comprehensive product information: Provide detailed quotations, drawings and motor samples and other information to help customers fully understand the characteristics of the product.

III. Ordering instructions

To ensure that the motor meets your needs, please specify the following parameters when ordering:

  • Basic parameters: Motor model, rated power, rated voltage, number of poles, rated frequency

  • installation environment: Protection class, cooling method, mounting method, rotation direction, environmental conditions, outlet location

  • Conditions of use: Altitude and working temperature of the installation site, type of load of the motor

if anyspecial requirementIf you have any questions about our products, please feel free to contact us, we need to sign another technical agreement before signing the order contract. You can also directly call our customer service hotline:15902923228 Access to professional guidance.

IV. Warranty Policy Details

1. Warranty period

Sigma Motors offersNot more than two years from date of shipmentThe warranty service. Within this specified time period, if the motor is damaged or fails to function properly due to poor manufacturing quality, Sigma Motors willRepairing or replacing parts or motors at no cost to the user

2. Warranty coverage

  • Warranty covers product quality problems caused by our company, the company will replace the relevant parts or provide free repair.

  • Warranty services need to be based onProper use and normal maintenanceThe machine should be used correctly in accordance with the original operating manual and maintained, lubricated and cleaned in accordance with the original manufacturer's recommendations.

3. Non-warranty coverage

The following are not covered by the warranty:

  • Non-designated maintenance staffDamage caused

  • Unauthorized modifications or self-disassembly

  • utilizationUnofficial spare parts or software

  • Failure to comply with operating manualsPrescribed guidelines for use, handling and maintenance

  • natural disaster(Damage to products caused by wind, fire, flood, earthquake, etc.

  • Natural wear and tear under normal use

V. Post-warranty services

After the expiration of the warranty period, Sigma motors provide continuous service support:

  1. Reimbursable services for life: After the expiration of the warranty period, if the product malfunctions, our company implements lifelong paid service, the required wearing parts and spare parts toCost price supply

  2. (pay a) regular return visit: After-sales service staffFrom time to time, we will make return visits to the usersUnderstand the status of product usage and resolve potential issues in a timely manner.

  3. Professional Repair ServiceThe company undertakes the repair of all kinds of motors, regardless of whether they are under warranty or not, and can provide professional overhaul and maintenance services.

VI. Service commitments and standards

Sigma Motors is committed to “Sincerity, thoughtfulness, devotion, Sigma will always be attentive.”The “Three Hearts” service concept ensures customer experience through standardized service processes:

  1. Professional Services Team: The company has set up a specialized service team to provide installation guidance, troubleshooting and maintenance services to ensure the efficient operation of the products in the process of use.

  2. Rapid Response Mechanism: The after-sales service team will respond promptly to customer feedback and quickly develop solutions.

  3. Full track record: Detailed records are kept for all service sessions to ensure traceability of the service process and continuous improvement of service quality.

VII. User complaint channels

If you are not satisfied with the services provided by Sigma Motors, you are welcome to provide feedback through the following channels:

  • direct marketingComplaints from Service Department and Headquarters

  • Call the customer service line:15902923228

We will take every piece of feedback seriously and continue to improve the quality of our services.

concluding remarks

Sigma Motors will continue to provide customers withHigh quality products and professional after-sales serviceWe will solve your worries through a perfect service system. We firmly believe that only the success of the customer, the development of Sigma. Choosing Sigma motor is choosingQuality and Trust

Sigma motors--Service with heart, create the future together!

Simo motorsBrand advantage: excellent quality, leading the motor industry innovation and development

More than sixty years of professional precipitation, to create a benchmark brand in the motor industry

Brand heritage and strength

Sigma Motors (former)Xi'an Electric Machinery Factory) was founded in 1955, as China's motor industryleading enterprisesThe company is one of the leading manufacturers of electric motors in the world, with more than sixty years of experience and expertise in the manufacturing of electric motors. The company has now developed intoIntegration of R&D, manufacturing and sales of motor productsOur products are widely used in many important fields such as electric power, coal, petroleum, mining, metallurgy, railroad, transportation, chemical industry, agriculture, water conservancy, aviation and so on.

Sigma motors are recognized for theirDeep technical heritageContinuous spirit of innovationThe company has established an excellent brand image in the motor industry, and its products are exported to more than 40 countries and regions such as North America, Europe, the Middle East, Southeast Asia, Africa, Australia, etc., which are trusted and highly praised by users all over the world.

Core Technology Advantage

1. Leading research and development innovation capabilities

Sigma Electric always takes technological innovation as the core driving force of enterprise development:

  • Professional R&D Team: Has a team ofSenior engineers and technologistsThe R&D team, which is composed of a team of researchers, focuses on the cutting-edge research and application development of motor technology.

  • Continuous technical investment: invest an annual percentage of sales5%-7% As R&D funding to ensure continuous technological innovation and product upgrades

  • Patented Technology Achievements: Cumulative access toMore than a hundred national patentsA number of products have won national and provincial awards for scientific and technological progress.

  • Industry-University-Research Cooperation: Establishing strategic cooperative relationships with many well-known universities and scientific research institutions to jointly promote the development of motor technology.

2. Excellent product quality system

Sigma Motors has established a comprehensive quality assurance system to ensure that every motor meets the highest quality standards:

  • International Standard Certification: Fully adoptedISO9001 Quality Management System CertificationISO14001 Environmental Management System CertificationOHSAS18001 Occupational Health and Safety Management System Certification

  • Strict quality control: Implementation from raw material procurement to finished product shipment68 strict quality control proceduresEnsure zero defects in products

  • Advanced testing equipment: Equipped with international advancedMotor Performance Test SystemVibration AnalyzerNoise test equipmentetc., comprehensive testing of various performance indicators of the motor

  • Continuous Quality Improvement: Establish a perfect quality feedback mechanism, continuously optimize the production process, and improve product quality and stability.

Product Advantage Characteristics

1. Energy efficient technologies

Sigma Motors actively responds to the national energy-saving and emission reduction policy and launches a series of energy-efficient products:

  • High Efficiency Motor Series: To meet the nationalGB18613-2020 standardEnergy efficiency rating, some products reachIE4, IE5 ultra-high efficiency level

  • Application of energy-saving technologies: AdoptionHigh Quality Silicon Steel SheetLow loss bearingsHigh efficiency cooling systemetc., significantly reducing operational energy consumption

  • Intelligent control technology: Supporting the advancedFrequency control systemThe optimal control of the motor operating state is realized, and the energy-saving effect is improved 15%-30%

2. Excellent performance

Sigma Motor products are characterized byHigh reliability, long service life, low maintenance costsAnd famous:

  • Powerful power output: Optimized electromagnetic design solutions to ensure that the motorHigh starting torque and high overload capacity

  • Low vibration and low noise: AdoptionDynamic balancing processnoise reduction technologyThe vibration and noise values are better than the national standards.

  • Highly adaptable to the environmentProduct design takes into account all kinds of severe working conditions, withResistant to high temperature, humidity and corrosionand other properties

  • Long life design: The key components are made of special treatment and high quality materials, and are designed to last up to100,000 hoursthat amount or more

3. Complete product range

Sigma Motors offers a comprehensive range of products to meet the needs of different customers:

  • High voltage motorsrange: Voltage level coverage6kV, 10kVMultiple ratings, power range200-10000kW

  • Low Voltage Motor Series:: IncludesYX3, YE3, YE4and other series, power range0.55-1000kW

  • Explosion-proof motorsrange: ByNational explosion-proof certificationFor use in flammable and explosive hazardous areas

  • Specialized motor series: Developed for specific industry needsSpecialized for coal mine, metallurgy, and shipsSpecialty motors

  • Non-standard customization capability: Strong customization and development capability, according to the customer's needsPersonalized Solutions

Service System Advantage

Sigma Motor has established a comprehensive customer service system:

  • pre-sales technical support: Provide professional selection guidance, program design and product demonstration

  • Intimate service during the sale: Strict contractual performance, ensuring on-time delivery and providing installation guidance

  • Comprehensive after-sales protection24 months warranty7×24 hours technical support48-hour on-site servicepromise

  • Lifetime maintenance support: Establish customer equipment files and provide full life-cycle service support

Industry Application Advantages

Sigma motors have accumulated a wealth of application experience in a number of key industries:

  • Power industry: Provide supporting motors for thermal power, hydropower and nuclear power, with stable and reliable operation.

  • coal industry: Explosion-proof motor products passed the coal mine safety certification, safety recognized by the industry

  • petrochemicalsCorrosion-resistant, explosion-proof special motors to adapt to the harsh working conditions and ensure safe production.

  • Metallurgical industry: High overload capacity, high temperature resistant motors to meet the special needs of metallurgical equipment

  • Transportation: Specialized motor solutions for railroads, rail transit, ports, etc.

Brand Honors and Certifications

Sigma motors have won many honors for their excellent product quality and good market performance:

  • China Famous Brand ProductsNational Inspection-free ProductsChina Famous Trademarks

  • High-tech enterprisesProvincial Enterprise Technology Center

  • A number of products won the provincial and ministerial-level scientific and technological progress awards

  • Contract and Trustworthy EnterpriseQuality and reputation AAA grade enterprise

concluding remarks

Choosing Sigma motors is choosingReliable quality assuranceLeading Technical StrengthComplete service supportSigma Motors is a leading manufacturer of electric motors in China. With more than sixty years of professional accumulation, Sigma motors have a profound technical background and rich industry experience, and are able to provide customers in various industries with the best quality motor products and perfect power solutions.

In the future, Sigma Motor will continue to uphold the "Quality-oriented, innovation-driven, customer first"business philosophy, and constantly improve the level of product technology and quality level, to create greater value for customers, and make greater contributions to the development of China's motor industry.

Sigma motors - strong power, excellent energy efficiency and perfect service!

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