Building Protective System Manufacturer,Supplier and Exporter in India
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Product Code : SCL-EELE-11923
Indian Lab Suppliers supplies the Building Protective System (Product ID: 11923) as part of its electronics engineering lab equipment range. It is a mobile bench for studying current and time selectivity between protective devices in low-voltage distribution.
Quick Answer
Two isolating transformers, 220/48 V and 220/220 V, limit the energy involved when deliberate faults are created. On the current (ammeter) selectivity panel a set of induction coils with modular values sets the fault-loop impedance; on the time (chronometric) selectivity panel a rheostat sets the fault level. Students study thermal-magnetic circuit breakers (tripping curves, breaking capacity), plot the tripping curve for a given rating, simulate full, partial and no selectivity across two or three stages, use an adjustable residual-current relay with a separate toroid, analyse short-circuit currents and their limitation, and see in simple form how an arc is broken at very low voltage. The bench stands on a frame with locking wheels and comes with a set of safety leads.
Key Specifications
| Parameter | Detail |
|---|---|
| Selectivity methods | Current (ammeter) and time (chronometric) |
| Isolating transformers | 220/48 V and 220/220 V |
| Fault impedance | Induction coils with modular values |
| Time selectivity | Rheostat |
| Panels | Two mimic diagram panels |
| Frame | Locking wheels |
| Accessories | Set of safety leads |
Where This Is Used
Used in electrical installation courses with Grounding Scheme & Selectivity Panel (Product ID: 11919) and IDMT And Directional Over Current Relay Setup (Product ID: 10405). Faults and small arcs are created on purpose: wear eye protection and work under supervision. Browse the full Electronics Engineering Lab Equipment range or related Electricity and Magnetism products.
Frequently Asked Questions
What is selectivity?
Only the device nearest the fault trips, so the rest of the installation stays supplied.
How is fault energy limited?
By two isolating transformers, 220/48 V and 220/220 V.
Can tripping curves be plotted?
Yes, for a thermal-magnetic breaker of a given rating.
Related Categories
Electronics Engineering Lab Equipment · Electricity and Magnetism · Engineering Lab Equipment
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