Forced Commutated Circuits with Power Supply Manufacturer,Supplier and Exporter in India
.png)
Product Code : SCL-EELE-12906
Indian Lab Suppliers supplies the Forced Commutated Circuits with Power Supply (Product ID: 12906) as part of its electronics engineering lab equipment range. It demonstrates the five standard classes (A to E) of SCR commutation on one board.
Quick Answer
Class A turns the SCR off by the resonance of the load, class B by an LC circuit, class C by a charged capacitor switched by a second load-carrying SCR, class D by a charged capacitor switched by an auxiliary SCR, and class E by a pulse from an external pulse generator. The board provides a 30 V DC, 150 mA supply for the power circuits, a 5 V DC, 50 mA supply, a UJT triggering circuit, a 5 Hz square-wave oscillator, two push-to-ON switches, an NPN transistor, an inductor, a capacitor bank, and a diode with an LED to show conduction. It runs from 230 V ±10%, 50 Hz mains.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiments | Commutation classes A, B, C, D and E |
| Supplies | 30 V DC, 150 mA; 5 V DC, 50 mA |
| Triggering | UJT trigger circuit for SCRs; 2 push-to-ON switches |
| Oscillator | 5 Hz square wave |
| Components | Inductor, capacitor bank, NPN transistor, diode and LED |
| Mains | 230 V ±10%, 50 Hz; ON/OFF switch, fuse and indicator lamp |
| Connections | 4 mm stackable patch cords, 0.5 m |
Where This Is Used
Used with the S.C.R. DC Circuit Breaker (Product ID: 12893) and the Voltage Commutated Thyristorised Chopper with Power Supply (Product ID: 12907), which apply these commutation methods. Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Frequently Asked Questions
Why does an SCR on DC need commutation?
Once on, it stays on until its current falls below the holding level, which does not happen by itself on DC.
What is class D commutation?
A charged capacitor is switched across the main SCR by an auxiliary SCR.
Which classes are covered?
All five, A to E.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
Request a Quote
For pricing, bulk quantities or tender documentation on the Forced Commutated Circuits with Power Supply, reach our team via Contact Us or submit your requirement through our Tenders page.
.png)
.png)
.jpg)