Article Catalog[Hidden]
- High-Voltage Squirrel-Cage Motor Starter Cabinet: A Complete Solution for Smooth Starting of High-Power Motors
- I. Product Overview: Innovative Breakthrough in High-Voltage Motor Starting Technology
- II. Core Technology Principles and Structural Design
- III. Core Functions and Technical Advantages
- IV. Main Technical Parameters
- V. Application Scenarios and Industry Solutions
- VI. Selection and Installation Guide
- VII. Core Advantages of the Xima High-Voltage Squirrel-Cage Motor Starter Cabinet
High-voltage squirrel-cage motorstarter cabinetComplete Solution for Smooth Start-up of High-Power Motors
I. Product Overview:High voltage motorsInnovative Breakthroughs in Starting Technology
High Voltage Cage Motor Starter Cabinetis a product specifically designed for3kV to 12kV voltage levelSoft-start device for medium and large cage-type AC induction motorsThis product is certified throughAdvanced Liquid Resistance Technology或Solid-State Power Electronics Technologyhas realized high-voltage, high-capacity electric motors.Smooth, shock-free startcompletely resolved the issues caused by traditional direct starting methodsSignificant grid impact and high mechanical stressIndustry pain points。

Simo motorsThe high-voltage squirrel-cage motor starter cabinet integratesIntelligent Control System与Multi-layered protection mechanismNot only does it possessSoft start, soft stopCore functionality, also integratedComprehensive Motor ProtectionThe system provides reliable and economical starting solutions for high-power motor applications in mining, metallurgy, power generation, building materials, chemical, and other industries.。
II. Core Technology Principles and Structural Design
1. Principles of Intelligent Control
High-voltage squirrel-cage motor starter cabinetHigh-Performance Programmable Logic Controller (PLC) 或Microprocessor SystemCore Control UnitthroughTemperature Characteristics of Liquid Resistors或Thyristor Phase-Shift ControlPrinciple: Achieving precise control over the motor start-up process。
- Liquid Resistance Starting PrincipleBy utilizing an electrolyte with negative temperature characteristics as the resistive medium, the temperature of the resistive element gradually increases during motor startup while its resistance value progressively decreases. This causes the terminal voltage to rise incrementally, leading to a gradual increase in starting torque. This achieves smooth motor startup while reducing the starting current.
- Principle of Solid-State Soft Start: Employing multiple thyristors in series and parallel configurationsBy controlling the variation of the trigger angle, the conduction level of the thyristor is adjusted, thereby precisely regulating the input voltage to the motor and achieving a smooth starting effect.
2. Precision Structural Design and Safety Features
- Modular Component DesignIncludes components such as resistors, high-voltage soft-start control cabinets, isolation cabinets, switching cabinets, and star-point control cabinets, supplied as a complete set for convenient installation and maintenance.
- Multi-layered protection mechanismProvides comprehensive protection for the motor against overload, phase failure, and short circuits, ensuring a safe and reliable starting process.
- Specialized Structural DesignTo accommodate varying load conditions and application scenarios, proprietary patented "rotating plate" and "flat plate" structures have been developed, ensuring broad applicability.
III. Core Functions and Technical Advantages
1. Diverse Starting Modes and Performance Characteristics
- Constant Current Soft StartThe starting current can be stabilized at the motor's rated operating current.1.5 to 3.5 timesreduces motor start-up heating and effectively mitigates the impact on the power grid
- Smooth stepless speed regulationDuring the starting process, the resistance value automatically undergoes a stepless transition from high to low within a predetermined timeframe, ensuring a smooth start-up and eliminating impact on mechanical equipment.
- High starting success rateEnsure successful startup on the first attempt, unaffected by grid voltage fluctuations and load variations.
2. Intelligent Control and Protection Capabilities
- PLC precision controlFeatures a PLC control system for high reliability, with flexible on-site adjustment of startup parameters.
- Enhance protective functionsFeatures comprehensive alarm notification capabilities and motor protection functions, including overload, phase loss, and short-circuit protection.
- Fault Diagnosis and RecordingBuilt-in fault diagnosis system records and displays fault information for quick troubleshooting.
3. Energy Efficiency and Economic Advantages
- Reduce transformer capacity requirements:Can reduce the transformer capacity requirements for heavy-load motor starts, thereby lowering the initial investment.
- Extend equipment lifespanThe smooth, shock-free startup process extends the service life of mechanical equipment and motors.30%left and right
- High cost-performance ratioCompared to high-voltage variable-frequency soft starters, it offers distinct advantages such as simplified operation, maintenance-free design, and absence of harmonic pollution, while also being more cost-effective.
IV. Main Technical Parameters
V. Application Scenarios and Industry Solutions
1. Typical Load Adaptation
- PumpsHigh-lift pumps, water transfer pumps, circulation pumps, water supply pumps, etc., eliminate water hammer hazards.
- Fans and CompressorsProtect high-inertia loads through overload start mode to reduce start-up impact.
- Heavy machineryBall mills, crushers, conveyors, mixers, etc., reduce mechanical impact and extend equipment service life.
- Mining EquipmentHeavy equipment such as hoists, crushers, and conveyor belts must ensure reliable startup even when grid capacity is insufficient.
2. Industry Application Cases
- Power industryProtect auxiliary motors in power plants and distribution systems to ensure the stability and continuity of power generation.
- Cement and Building Materials IndustryFor ball mills, fans, crushers, and other equipment, addressing equipment lifespan issues under frequent start-stop conditions.
- Chemical IndustryProvide reliable start-up protection for pumps, compressors, fans, and similar equipment to prevent safety incidents caused by motor failures.
- Metallurgical industryIn steel smelting and processing operations, protect various critical motor equipment such as rolling mill motors and fan motors.
- Mining industryUsed in mining hoists, drainage pumps, ventilation fans, and other equipment to ensure safe production in mines.
VI. Selection and Installation Guide
1. Key Selection Factors
- Motor ParametersRated voltage, power, rated current, stator connection (Y or Δ), and whether the neutral point can be opened.
- Load CharacteristicsPumps, fans, or heavy machinery: Starting frequency requirements (standard products or frequent-starting types)
- Operating EnvironmentAltitude, ambient temperature, protection rating, and special environmental requirements (e.g., presence of corrosive gases)
- Grid ConditionsWhether the grid capacity is sufficient and the requirements for limiting starting current
2. Key Points for Installation and Maintenance
- installation environmentIt should be installed in indoor locations free from severe vibration and impact, non-conductive dust and corrosive gases, and without fire or explosion hazards.
- Power RequirementsControl power supply utilizes three-phase four-wire 380/220V. Voltage fluctuations must remain within ±15% of the rated voltage.
- Maintenance CycleRegularly check the electrolyte level and concentration, clean insulating components, and inspect the tightness of connection parts.
- Special Environment AdaptationWhen the ambient temperature remains below -5°C for extended periods, a heater must be installed; Special design is required for areas exceeding 2000 meters in altitude.
VII. Core Advantages of the Xima High-Voltage Squirrel-Cage Motor Starter Cabinet
- Technologically mature and reliable:Utilizing liquid resistor technology or solid-state soft-start technology proven over years of market application, ensuring stable and reliable performance.
- Energy-saving effects are significant: It can reduce the capacity requirements for transformers during heavy-load motor starts, decrease initial investment costs, and simultaneously lower operational energy consumption.
- Easy to maintainSimple structure, easy maintenance, low technical requirements for maintenance personnel, significantly reducing long-term maintenance costs.
- Environmentally friendly and pollution-freeNo harmonic pollution, power grid-friendly, and compliant with modern industrial environmental requirements.
- Full-cycle serviceOne-stop support from solution design and parameter debugging to technical training, with lifetime upgrade services provided.
As the ideal replacement for traditional starting equipment, the high-voltage squirrel-cage motor starter cabinet delivers smarter, more reliable motor starting solutions through its advanced control technology and comprehensive functional features. With the continuous advancement of industrial automation, this product will demonstrate its value across broader applications, generating greater economic benefits and production efficiency for industrial users.





Shaanxi Public Security Bureau No. 41032502000206



















