Study of SCR and A.C. Phase Control Manufacturer,Supplier and Exporter in India
Product Code : ILS-EELE-10418
Indian Lab Suppliers supplies the Study of SCR and A.C. Phase Control (Product ID: 10418) as part of its electronics engineering lab equipment range. It is a trainer for full-wave AC phase control of an SCR using ramp and ramp-and-pedestal triggering.
Quick Answer
A 230 V AC, 250 mA isolation transformer feeds a bridge rectifier with a zener regulator for full-wave phase control; the isolation also protects external instruments, such as an oscilloscope, that are not isolated. A UJT (2N2646) generates the firing pulses, which reach the SCR through a 1:1:1 pulse transformer. Two potentiometers set resistance-controlled ramps and two set the pedestal level, so students can see how the firing angle, and with it the average load voltage, changes. It runs on 230 V ±10%, 50 Hz, with waveform sockets, stackable 4 mm patch cords (0.5 m) and operating instructions.
Key Specifications
| Parameter | Detail |
|---|---|
| Isolation transformer | 230 V AC, 250 mA |
| Control supply | Bridge rectifier with zener regulator |
| Firing | UJT 2N2646, 1:1:1 pulse transformer |
| Controls | Two ramp potentiometers, two pedestal potentiometers |
| Mains | 230 V ±10%, 50 Hz |
| Accessories | 4 mm stackable patch cords, 0.5 m; operating instructions |
Where This Is Used
Used in power electronics labs before SCR Regulated D.C. Power Supply (Product ID: 10415) and Universal Motor Speed Control (Product ID: 10416). Mains voltage is present: switch off before rewiring. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Why use an isolation transformer?
It protects external instruments that are not isolated from the mains.
What does the pedestal control do?
It sets a DC level under the ramp, shifting the firing angle.
Which device makes the firing pulses?
A UJT, through a 1:1:1 pulse transformer.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
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