SALIENT FEATURES:
HALF BRIDGE FIRING CIRCUIT:
- Two – isolated gate signals for Full Bridge Converter.
- Firing angle variable from 1800 to 00.
- Gated carrier source at 4 KHz.
- Soft start circuit is built – in.
- Housed in a sleek cabinet.
- Test points are provided on the front panel for detailed study of circuit signals by the student.
- Necessary test points are terminated at sockets so that the student can monitor / measure / study the signals using CRO, DVM, etc.
- One Potentiometer to vary the firing angle.
- One ON/OFF switch with indicator provided to power the control circuitry so that the students can monitor all the test points of the control circuitry for correct functioning.
- Power Supply:
- Input : 230V + 10%, 50Hz single phase AC.
- +15V DC @ 0.5A regulated output for the control circuitry.
POWER DEVICES CIRCUIT:
- Two nos of SCR?s rated for 1200 volts-VAK & 25 Amps IA.
- Two diode for free wheeling.
- Each device is provided with.
- RC Snubber for dv / dt protection.
- Fuses to avoid overload.
- All the G, A, K & MT terminals are terminated on connectors to use patch cords.
LOAD:
- One fixed Resistive load (Lamp Load).
- One fixed Inductive load.
- All points are terminated at the front panel for wiring for each experiment.
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