SCR Commutation Techniques Class A B C D and E

The SCR Commutation Techniques Trainer is designed for practical study of different SCR commutation methods, covering Class A, B, C, D, and E commutation techniques. It provides a hands-on platform for understanding SCR turn-off methods, pulse generation, and the role of capacitors and inductors in commutation circuits. The trainer includes a rectified DC source, SCR, capacitors, inductors, LED indication, and pulse generator circuits for practical experimentation. The unit is housed in an ABS plastic cabinet with a clearly printed insulated circuit board. Designed and manufactured by Atico Export to meet the practical demands of modern laboratories.

Power Supply:

• Rectified DC source: +12 V, 250 mA.
• Mains operated: 230 V, 50 Hz ±10%.

Components Mounted on Panel:

• SCR.
• Capacitors.
• Inductors.
• LED.

Firing Techniques:

• Pulse generator (triggering): 2 units.
• Mono pulse generator.

Commutation Techniques:

• Class A commutation.
• Class B commutation.
• Class C commutation.
• Class D commutation.
• Class E commutation.

• Instruction manual.
• Mains operated at 230 V, 50 Hz.
• 2 mm patch cords.
• Supplied through a 3-pin computer socket with appropriate fuse.
• Housed in an ABS plastic cabinet.
• Trainer size: 13 × 11 inches.
• Front panel with high-class insulated printed circuit board featuring clearly printed circuits and symbols.
• Fuse protection against short-circuit conditions.