Combined Earth Fault and Over Current Numerical Relay Kit Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12996
Indian Lab Suppliers supplies the Combined Earth Fault and Over Current Numerical Relay Kit (Product ID: 12996) as part of its electronics engineering lab equipment range. It is a rack-mounted kit for testing a numerical relay that combines IDMT overcurrent and earth fault protection.
Quick Answer
Test current is set with a single-phase dimmer (230 V, 1 A) feeding a short-circuit transformer (230 V, 1 A primary; 0–2–8 V, 12 A secondary taps), which gives the high current at low voltage needed to operate the relay. An over-current and elapsed-time panel with a 20 A ammeter records the trip time up to 999 s at 1 ms resolution, and all relay connections, including 2 NO trip contacts, are brought out on the relay panel. The relay is rated 5 A with an adjustable current setting. Two experiments are listed: IDMT overcurrent protection and earth fault protection. Please confirm the relay setting ranges at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Input panel | Single phase AC; MCBs 4 A and 1.6 A; bulb load |
| Injector | 1-phase dimmer 230 V / 1 A; short-circuit transformer 230 V / 1 A primary, 0–2–8 V / 12 A secondary |
| Timer panel | AC ammeter 20 A; elapsed time up to 999 s, 1 ms resolution |
| Relay | Numerical IDMT overcurrent with earth fault, 5 A, adjustable current setting |
| Relay panel | All connections brought out; 2 NO trip contacts |
| Frame | Aluminium profile rack with ABS panels and 4 mm shrouded sockets |
Where This Is Used
Used in protection laboratories for overcurrent and earth fault relay tests. The injector secondary carries up to 12 A and the transformer and leads warm up, so keep test runs short and connect with the supply off. Related: Three Phase Over Current & Earth Fault Numeric Relay Testing System (Product ID: 12985) and Earth Fault Relay Testing System (Product ID: 12979). Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
How is high test current produced?
With a short-circuit transformer giving up to 12 A at 2 or 8 V.
What is the relay current rating?
5 A.
What is the timer resolution?
1 ms.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Engineering Lab Equipment
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