PQGP-SP External bypass soft starter cabinet

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The PQUAN PQGP-SP intelligent external bypass soft start cabinet, featuring an advanced intelligent soft starter, main circuit breaker, and bypass contactor, is designed for three-phase squirrel-cage AC induction motors. This integrated system provides comprehensive motor starting control and protection. By reducing starting current, it ensures smooth motor acceleration and deceleration, minimizing power grid impact, energy loss, and equipment wear. Through closed-loop control, it enhances the stability and reliability of both soft start and soft stop operations. Upon startup completion, the bypass contactor engages, enabling near-zero power consumption during normal operation, thus extending equipment lifespan.

External 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.
+ Tailor start durations to match diverse load requirements.
+ Optimize starting voltage for various load types.
+ Prevents excessive starting currents, ensuring equipment safety.
+ Choose between gradual (soft) or immediate (free) stop options.
+ Enables efficient operation after startup through bypass contactor connection.
+ Allows a single soft starter to sequentially power multiple motors.
+ Provides 14 distinct protective functions for enhanced system reliability.

Features

▌External Bypass Soft Starter Cabinet Characteristics:

Multi-Mode Control:
Multiple closed-loop controls monitor motor startup and operation, ensuring smooth starts and minimizing mechanical wear.
Reduced Thermal Impact:
Efficient current management during startup prevents overheating, extending motor lifespan and improving reliability.
Fault Detection & Recovery:
Built-in diagnostics detect faults like overcurrent, under-voltage, and phase imbalance, enabling rapid corrective action.
Lower Power Demand at Startup:
Soft start technology reduces high inrush currents, lowering power consumption.
Reduced Mechanical Wear:
Limits torque spikes during startup, protecting machinery and extending its operational life.
Energy Monitoring & Management:
Integrated energy usage tracking enables efficient resource management and long-term cost savings.
Advanced Parameter Settings:
Configure multiple parameters for diverse motor applications, optimizing performance across various operating conditions.
Seamless Integration:
Easily integrates with existing industrial control systems, enabling remote control and monitoring.
Bypass Functionality:
Isolates the soft starter once the motor reaches full speed, reducing heat and extending system longevity.
Intuitive Interface:
Real-time monitoring, parameter adjustments, and status updates simplify operation.
Simplified Maintenance:
Maintenance alerts and fault diagnostics enable early issue identification and reduced downtime.
Modular Design:
Replaceable modular components facilitate faster repairs and reduced maintenance time.

▌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.