Three Phase AC Phase Control Using Antiparallel Thyristor

The Three Phase AC Phase Control Using Antiparallel Thyristor is designed for practical study of three-phase SCR-based AC phase control and controlled power conversion. It provides a suitable platform for understanding three-phase gate control firing, SCR operation, phase control, and snubber circuit applications through hands-on experimentation. The trainer includes SCR circuitry, a three-phase gate control firing circuit, digital meters, resistive loads, and a snubber circuit for practical laboratory experiments. 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: 0–415 V at 1 A.
• Mains operated: 415 V, 50 Hz ±10%.

Components Mounted on Panel:

• SCR.
• AC phase control by gate control firing circuit for three-phase operation.
• Snubber circuit.

Loads:

• Bulb.
• Resistor.

• 10:1 potential divider for CRO.
• Protective cover.
• Bulb provided as load.
• Resistor provided as load.
• Fuse protection against short-circuit conditions.
• MCB with 3-phase indication.
• 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 and 18 × 12 inches.