Three Phase AC Voltage Controller Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-12965
Indian Lab Suppliers supplies the Three Phase AC Voltage Controller (Product ID: 12965) as part of its electronics engineering lab equipment range. It is a power electronics trainer that varies the voltage applied to a three-phase lamp or induction motor load with anti-parallel SCR pairs.
Quick Answer
Each phase has two SCRs (600 V / 16 A) connected back to back, and delaying their firing between 30° and 150° lowers the RMS voltage reaching the load. Three experiments are listed: the three-phase firing circuit, the controller with a lamp load, and the controller driving a 1 HP, 415 V squirrel-cage induction motor, where lowering the stator voltage reduces torque and speed. Firing pulses come from a ramp-comparator scheme with pulse isolation fed from a three-phase low-voltage supply, and gate and output waveforms can be viewed on the built-in isolated waveform unit (1500 V max).
Key Specifications
| Parameter | Detail |
|---|---|
| Mains supply | 415 V ±10%, 50 Hz, three phase |
| Power devices | Anti-parallel SCR pairs, 600 V / 16 A |
| Firing angle | 30° to 150°, ramp-comparator firing with pulse isolation |
| Motor | Squirrel-cage induction motor, 1 HP, 415 V |
| Waveform unit | Isolated, 1500 V max |
| Meters (analog) | AC voltmeter 0–500 V; AC ammeter 0–5 A |
| Protection | TPN MCB 5 A |
| Dimensions | Panel W 600 × D 450 × H 600 mm; motor W 180 × D 350 × H 310 mm |
| Weight | Panel about 18 kg; motor about 23 kg |
Where This Is Used
Used in power electronics and drives laboratories for AC phase-angle control and soft-start studies. It works at 415 V three phase with a rotating motor, so keep it earthed, connect with the supply off and measure only through the isolated input. Related: Three Phase Thyristorised AC Regulator with Triggering Circuit (Product ID: 12939) and Single Phase Bridge Converter Drive (Product ID: 12964). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What loads can be used?
A lamp load and the supplied 1 HP three-phase induction motor.
What is the firing angle range?
30° to 150°.
How are the firing pulses generated?
By a ramp-comparator scheme with pulse isolation.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
Request a Quote
For pricing, bulk quantities or tender documentation on the Three Phase AC Voltage Controller, reach our team via Contact Us or submit your requirement through our Tenders page.
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