Dedicated Vacuum Contactor Solution para sa Port Shore Power Systems
I. Background and Challenges
Ang mga sistema sa shore power naging pangunahon nga teknikal nga ekwipo aron mapababa ang paglabas og carbon ug noise pollution sa mga port. Pero, ang mga sistema naa duha ka dakong hamubo sa dili maayo nga kondisyon sa operasyon sa port:
- Dakong Pagkakorosyon sa Environment: Ang taas nga humidity ug salt spray sa mga lugar sa port nagresulta og serius nga korosyon sa metal nga komponente ug enclosures sa electrical equipment, na nagresulta og significant nga impact sa lifespan ug operational reliability.
- Taas nga Mga Requisito sa Switching: Ang koneksyon sa barko sa shore power nanginahanglan og mabilis, smooth, ug walay shock nga switching tali sa grid power ug ang generator power sa barko. Ani nga delay o current surge samtang switching mahimong mag-jeopardize sa safety ug stability sa power system sa barko ug sa port grid.
Ar-on masulbad niini nga mga hamubo, ang aming kompanya miintroduce og integrated vacuum contactor solution nga specially designed para sa port shore power systems, sigurado sa fundamental nga reliability ug efficiency.
II. Core Solution
Ang solusyon na siya nga gicenter sa high-performance vacuum contactors, customized uban sa serye sa teknikal nga features aron perfect nga makadugay sa mga demand sa port shore power applications.
- Design sa Protection Kontra Korosyon Para sa Salt Spray Environments
• Stainless Steel Enclosure: Ang contactor body nahimutang sa high-grade stainless steel enclosure, offering exceptional resistance kontra salt spray, moisture, ug korosyon, ensuring long-term stability sa harsh conditions sa port.
• Silver-Plated Contacts: Ang conductive circuits sa loob sa vacuum interrupter ug key external connection points silver-plated, significantly reducing contact resistance, improving conductivity, ug preventing poor contact o overheating resulta sa oxidation ug electrochemical corrosion, thereby extending electrical lifespan. - Mabilis ug Seamless Power Switching
• Pre-charging Device: Integrated pre-charging circuit nga charging ang transformer ug cables sa ship’s load side pinaagi sa pre-charging resistor bago ang main contactor close, effectively suppressing ang large inrush current samtang switching.
• Ultra-Fast Switching Performance: Optimized electromagnetic system combined with a vacuum interrupter achieving a switching time of less than 50 milliseconds (ms). This far exceeds the performance of traditional contactors, ensuring smooth and imperceptible power switching without impacting sensitive shipboard equipment. - Intelligent Control and System Integration
• Integrated PLC Control Unit: Built-in high-performance programmable logic controller (PLC) serving as the local control brain, precisely managing the timing and logic of pre-charging, closing, and opening operations.
• Automatic Grid Synchronization Function: Through PLC programming, ang sistema real-time monitoring voltage, frequency, ug phase differences tali sa grid ug ship power, automatically issuing switching commands when conditions are met. This enables fully automatic grid synchronization, significantly reducing manual operations while enhancing safety and efficiency.
III. Application Results and Case Study
Ang solusyon na thoroughly validated sa practical projects, delivering remarkable results.
Case Study: PSA Singapore Port Project
• Duration of Application: Stable operation for over 3 years.
• Reliability Record: Achieved a "zero failure" operational record, fully demonstrating the solution’s exceptional reliability and durability under high-intensity and highly corrosive conditions.
• Efficiency Improvement: The fully automatic fast-switching mode significantly streamlined the ship power connection process, improving average connection efficiency by 40%. This effectively reduced vessel berthing time, delivering substantial economic benefits for both the port operator and ship owners.
IV. Conclusion
Ang vacuum contactor solution na addressing the core challenges of port shore power systems through material innovation (stainless steel + silver plating), technical integration (pre-charging + PLC), and performance optimization (<50 ms switching). It is a critical equipment choice for ensuring the safe, reliable, and efficient operation of shore power systems. We are committed to providing globally proven intelligent electrical connection solutions for port customers worldwide, supporting the green transformation and upgrading of ports.
