3 Phase Star Delta Starter

Product Details

📌 1. Description

A 3-phase digital star-delta starter panel with graphics display is an advanced motor starting and protection system designed for smooth starting, monitoring, and protection of three-phase induction motors, pumps.

• Uses star-delta starting method to reduce inrush current during motor startup
• Equipped with a graphics display for intelligent monitoring
• Built in a heavy-duty metal enclosure for industrial durability
• Suitable for medium to large motors, pumps in industrial and commercial applications
• Combines power circuit + smart control + visualization in one panel

⚙️ 2. Technical Specifications

• Power Supply: 3 Phase, 415V AC, 50 Hz
• Motor Rating: 7.5HP, 10HP, 15HP, 20HP (expandable as required)
• Starter Type: Automatic Digital Star-Delta
• Display Type:
  • 5” Graphics display
• Enclosure Material:
  • Heavy gauge Mild Steel
  • Powder-coated
• Mounting Type: Wall-mounted

🖥️ 3. Graphics Display / Digital Controller Features

• Real-time monitoring of:
  • Line voltage (R, Y, B phases)
  • Motor current
• Display of:
  • Motor running / stopped condition
  • Fault messages & alarm
  • Auto / Manual operation
• Fault diagnostics:
  • Fault history logs (last 20 events)
  • Alarm with fault

✨ 4. Key Features

• Reduced starting current using star-delta method
• High-quality AC contactors (Main, Star, Delta)
• Digital Graphics display(Voltmeter, Ammeter)
• indications:
  • Motor Running
  • Trip / Fault
• Push buttons: OL,DRY RUN, Timer Setting,
• Auto / Manual 
• Compact and modular design
• Easy wiring and maintenance

🛡️ 5. Protection Features

🔹 Electrical Protection

• Overload protection
• Short circuit protection (MCB)
• Phase failure protection
• Phase reversal protection
• Under voltage / over voltage protection
• Phase unbalance protection

🔹 Motor Protection

• Dry run protection (for pumps)
• Start failure protection
• Emergency Bypass provision
• Fault annunciation with buzzer

🚀 6. Benefits

• ✅ Significant reduction in starting current → protects power system
• ✅ Increases motor life by reducing mechanical stress
• ✅ User-friendly graphics display for easy monitoring
• ✅ Fast fault detection & troubleshooting
• ✅ Improves operational reliability
• ✅ Energy-efficient starting method
• ✅ Compact and robust design for industrial use
• ✅ Reduces downtime with diagnostic features

🏭 7. Applications

• Industrial motors & machinery
• Water pumping systems, Water Transfer, Dewatering (submersible / centrifugal pumps)
• Textile and processing industries
• Irrigation & agriculture pumps
• Manufacturing plants
• Fire fighting pump systems

🧠 8. Working Principle (Short)

• Motor starts in Star connection → voltage reduced to ~58%
• After preset time → automatically switches to Delta connection (full voltage)
• Digital controller ensures safe transition, monitoring, and protection
• Graphics display continuously shows system status and faults