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PQGZ-SN/SZ integrated online/bypass soft starter cabinet

The PQGZ-SZ/SN integrated online/bypass Soft Starter Cabinet represents a cutting-edge motor control solution, integrating advanced motor control theories with modern computer technology. It surpasses traditional starting methods like star-delta and autotransformer starters, delivering superior performance and reliability. Featuring multiple closed-loop control systems, it ensures smoother motor startups, enhanced energy efficiency, and robust motor protection, making it ideal for demanding industrial applications. This intelligent cabinet is specifically designed for the starting, stopping, and protection of three-phase squirrel-cage asynchronous motors, offering comprehensive functionality, simplified operation, and an optional integrated circuit breaker for added convenience.

integrated online/bypass soft starter cabinet – Parameters

+ Power Voltage: Three-phase 380V ±15%, Frequency:50/60Hz.
+ Start Frequency: Less than 20 starts per hour.
+ Protection Class: IP20 or IP30.
+ Cater to diverse industrial needs, from 11 kW to 630 kW.
+ Employs microprocessor-based control, fuzzy logic, and zero-current switching for optimal performance.
+ Demonstrates strong load adaptability and electromagnetic compatibility (EMC).
+ Offers six distinct starting modes and two stopping modes.
+ Supports a high start frequency of 12 starts per hour, significantly exceeding traditional starter limitations.
+ Easy operation with simple start/stop buttons
+ Real-time access to voltage, current, and other operational data

Features

▌Integrated online/bypass Bypass Soft Starter Cabinet Characteristics:

  • Multi-loop Control Systems:
    Provide precise motor startup and operation control.
  • Smooth Acceleration and Deceleration:
    Minimize mechanical wear, extending the lifespan of both the motor and connected equipment.
  • Multiple Built-in Protections:
    Ensure safe motor operation through defined parameters.
  • Broad Motor Compatibility:
    Suitable for various motor sizes, offering versatile motor-driven applications.
  • No Bypass Contactors:
    Reduce product price and maintenance costs, adapting to harsh environments like smoke and dust.
  • Lightweight Design:
    Control cabinet weight is only half that of a self-coupling starter.
  • Comprehensive Protection and Economic Benefits:
    Features complete protection functions, reliable performance, long service life, and high economic efficiency.
  • Reduced Operating Costs: E
    mploys online thyristor operation, eliminating the need for AC contactors and significantly lowering long-term maintenance expenses.
  • Simplified Maintenance:
    Features a low failure rate, with common faults easily resolved, reducing maintenance workload.
  • Plug-and-Play Operation:
    Eliminates the need for complex on-site debugging, simplifying the installation process and saving time and labor.
  • Intelligent Control and Display:
    Features a large LCD Chinese display for easy parameter setting and querying. It implements current, voltage, and torque closed-loop control.
  • Flexible Output and Cost-Effectiveness:
    Equipped with programmable fault relay output, multifunctional programmable relay output, and 0-20mA (or 4-20mA) analog current output. In applications where motor speed control is not required, it can partially replace frequency converters, offering a lower-cost alternative.

▌Environmental requirements:
Altitude: Less than 3km. If exceeding 3km, power derating is required.
Ambient Temperature: -30°C to +55°C.
Ambient Humidity: Less than 90%, non-condensing.
Environment: No corrosive gases, no conductive dust, good ventilation.

▌NOTE:
Ensure a comprehensive understanding of your equipment’s operational load and performance requirements to accurately specify your electrical control cabinet.

▌Application:
Industrial Heavy Machinery:Provides controlled startup for heavy-duty equipment like compressors, conveyors, and crushers, minimizing power fluctuations and optimizing energy consumption. This leads to reduced mechanical wear and extended equipment lifespan.

Water Treatment and Pumping Systems:Ensures smooth startups for large pumps, maintaining stable system performance and minimizing wear. This contributes to consistent water flow and pressure, while also promoting long-term sustainability.

HVAC and Refrigeration:Reduces high startup currents for compressors and fans, preventing wear and ensuring system stability. Real-time energy tracking optimizes costs and maintains optimal temperatures for stored products.

Mining and Heavy Engineering:Facilitates smooth startups for conveyor belts and drilling equipment, reducing stress and increasing reliability in demanding environments. This enhances equipment durability and contributes to a safer working environment by minimizing breakdown risks.

Specifications

Model Table

Installation Dimension

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