Single Phase AC Phase Control Using Antiparallel Thyristor

The Single Phase AC Phase Control Using Antiparallel Thyristor is designed for practical study of SCR-based AC phase control and controlled power conversion. It provides a suitable platform for understanding SCR triggering, gate control, phase control, and snubber circuit operation through hands-on experimentation. The trainer includes an SCR, AC phase control by gate control firing circuit, and an RC snubber circuit, along with digital meters and dedicated power supplies. Designed and manufactured by Atico Export to meet the practical demands of modern laboratories.

Digital Meters:

• Voltmeter: 2000 V AC.
• Ammeter: 2 A AC.

Power Supplies:

• +15 V / 150 mA.
• Isolated supply: 0–220 V AC at 2 A.
• Mains operated: 230 V, 50 Hz ±10%.

Components Mounted on Panel:

• SCR.
• AC phase control by gate control firing circuit.
• Snubber circuit.

• 10:1 potential divider for CRO.
• Protective cover.
• Bulb provided as load.
• Fuse protection against short-circuit conditions.
• Front panel with high-class insulated printed circuit board featuring clearly printed circuits and symbols.
• Instruction manual.
• 4 mm and 2 mm patch cords.
• High-voltage test points with 4 mm and 2 mm safety sockets.
• Housed in a metal cabinet.
• Trainer size: 15 × 11 inches.