DV/DT Limitation of SCR's with Power Supply Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12881
Indian Lab Suppliers supplies the DV/DT Limitation of SCR's with Power Supply (Product ID: 12881) as part of its electronics engineering lab equipment range. It shows how a fast-rising anode voltage (dv/dt) can falsely turn on an SCR and how gate termination, gate biasing and snubbers prevent it.
Quick Answer
A thyristor switch applies a sudden step from the built-in 300 V DC, 250 mA supply to the SCR under test, and an indicator shows whether it fired. Students estimate its dv/dt capability, then compare the improvement from a gate-cathode resistor, from voltage and current biasing of the gate, from a transistor snubber, and from two RC snubber schemes. A silicon diode and the other parts are on board, and the unit runs from 230 V ±10%, 50 Hz mains. The 300 V DC supply is hazardous: change connections only with power off and under supervision.
Key Specifications
| Parameter | Detail |
|---|---|
| Experiments | dv/dt estimation; gate-cathode termination; voltage and current gate biasing; transistor snubber; RC snubbers |
| DC supply | 300 V DC, 250 mA, internal |
| Switching | Thyristor switch to apply a voltage step |
| Snubbers | Transistorised snubber; 2 RC snubber schemes |
| Indication | Visual indicator of SCR firing |
| 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 in thyristor protection practicals alongside the Study of SCR and A.C. Phase Control with Power Supply (Product ID: 12880) and the Forced Commutated Circuits with Power Supply (Product ID: 12906). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.
Why Buy from Indian Lab Suppliers
Indian Lab Suppliers is an India-based laboratory equipment manufacturer and exporter supplying this scr dv/dt trainer alongside its wider electronics lab equipment range, with documentation such as a Certificate of Origin available on request for institutional and export orders.
Frequently Asked Questions
What is dv/dt triggering?
Unwanted turn-on caused by junction-capacitance current when the anode voltage rises too fast.
How does an RC snubber help?
It slows the rate of voltage rise across the SCR.
What voltage is applied to the SCR?
Up to 300 V DC from the built-in supply.
Related Categories
Electronics Engineering Lab Equipment · Electronics Lab Equipment · Engineering Lab Equipment
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