Phase Sequence Monitoring with Power Supply Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12286
Indian Lab Suppliers supplies the Phase Sequence Monitoring with Power Supply (Product ID: 12286) as part of its electronics engineering lab equipment range. It checks whether an incoming low-voltage R Y B three-phase signal arrives in the correct sequence.
Quick Answer
IC 741 stages convert the three phases to logic levels and a 4013 D flip-flop compares their order, so its output shows whether the sequence is R-Y-B or reversed. A 4011 NAND gate and transistor stages (two BC177 and one BC147) drive the indication. Students swap two phases at the input and watch the result change. The input comes from an R Y B signal generator, which is required and not included. Internal supplies are ±15 V DC and 10 V DC (50 mA each).
Key Specifications
| Parameter | Detail |
|---|---|
| Experiment | Detection of incoming low-voltage R Y B phase sequence |
| ICs | 3 x IC 741; 4013 D flip-flop; 4011 NAND gate |
| Transistors | 2 x BC177, 1 x BC147 |
| Supplies | ±15 V DC at 50 mA; 10 V DC at 50 mA (both internal) |
| Mains | 230 V ±10%, 50 Hz AC; ON/OFF switch, fuse and indicator lamp |
| Also required (not included) | R Y B signal generator |
Where This Is Used
Used in electrical-protection practicals, since reversed phase sequence reverses three-phase motors. Signal source: R Y B Signal Generator with Power Supply (Product ID: 12282); related: Under Voltage Monitoring with Power Supply (C.R.) (Product ID: 12280). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
What input does it need?
A low-voltage R Y B three-phase signal, for example from an R Y B signal generator.
Why does phase sequence matter?
A reversed sequence makes a three-phase motor run backwards.
Which logic ICs are used?
A 4013 D flip-flop and a 4011 NAND gate.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism
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