R.M.S. & Average Values of Rectified Voltage Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12931
Indian Lab Suppliers supplies the R.M.S. & Average Values of Rectified Voltage (Product ID: 12931) as part of its electronics engineering lab equipment range. It uses a bridge rectifier to show the difference between the r.m.s. and average values of a full-wave rectified voltage, and how moving-iron and moving-coil meters respond to each.
Quick Answer
Students connect the silicon bridge rectifier to a transformer tap (10, 15, 20, 25 or 30 V at 0.3 A), load it with one of three resistors, and measure input and output amplitudes on an oscilloscope. The moving-iron voltmeter (0-50 V AC/DC) reads the r.m.s. value while the permanent-magnet moving-coil voltmeter (0-50 V DC) reads the average, so their ratio can be compared with the theoretical form factor of 1.11 for a full-wave rectified sine wave. A 20 MHz dual-trace oscilloscope is needed and is not part of the board. It weighs about 2.9 kg and runs from 230 V ±10%, 50 Hz mains. The load resistors get hot in use.
Key Specifications
| Parameter | Detail |
|---|---|
| Rectifier | Silicon bridge |
| Transformer taps | COM-10-15-20-25-30 V, 0.3 A |
| Meters | MI voltmeter 0-50 V AC/DC; MC voltmeter 0-50 V DC |
| Loads | 100 Ω/20 W, 250 Ω/10 W, 500 Ω/5 W |
| Also required | 20 MHz dual-trace oscilloscope |
| Mains | 230 V ±10%, 50 Hz; ON/OFF switch, fuse and indicator lamp |
| Weight / size | About 2.9 kg; W 340 × H 125 × D 210 mm |
Where This Is Used
Used in electrical measurement practicals with the Power Measurement By 3 Voltmeter, 3 Ammeter Method (Product ID: 12938) and the rectifier study of the Three Phase Half Wave Rectifier with Power Supply (Product ID: 12917). Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
Which meter reads the r.m.s. value?
The moving-iron voltmeter; the moving-coil meter reads the average.
What is the form factor of a full-wave rectified sine wave?
About 1.11, the ratio of r.m.s. to average value.
What voltages can be selected?
10, 15, 20, 25 and 30 V taps.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Electronics Lab Equipment
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