The Low Voltage Protection
Trainer is a versatile, hands-on educational tool designed to teach the
principles, functions, and real-world applications of low voltage protection
systems. It offers a safe and modular environment to explore undervoltage,
overcurrent, and earth fault protection scenarios using industry-standard
components.
Ideal for vocational institutes,
engineering labs, and technical training centers, this trainer allows learners
to test, wire, and evaluate devices like MCBs, MCCBs, RCBs, RCBOs, and
protection relays.
🎓 Training
Features
✅ Understanding of Low Voltage Protection Circuits
✅ AC/DC Protection Relay Integration
✅ Repairable On-board Low Voltage Fuses
✅ Complete Circuit Breaker Setup:
- MCB
(Miniature Circuit Breaker) - MCCB
(Molded Case Circuit Breaker) - RCB
(Residual Current Breaker) - RCBO
(Residual Current with Overcurrent)
✅ MCB Characteristics Testing (B, C, D
Curve behavior)
✅ Short Circuit & Earth Fault Testing
for all CBs
✅ Adjustable AC Variable Power Supply
✅ Current Injector for overcurrent
simulation
✅ AC Motor Protection Circuit using
magnetic contactor and thermal OLR
✅ Manual & Automatic Restart Testing
✅ Resistive & Inductive Loads for
load-based circuit behavior
✅ Manual Fault Simulation Switches
✅ Practical Wiring & Troubleshooting
Exercises
📊 Technical
Parameters
Parameter |
Specification |
Input Supply |
230V ±10%, 50 |
Output |
0–230V AC (adjustable via onboard supply) |
Protection Devices |
MCB, MCCB, |
Undervoltage |
Adjustable (e.g., 150–210V AC) |
Current Injector |
0.5A to 20A |
Motor |
230V AC Magnetic Contactor + OLR |
Digital Ammeter |
CT Type, |
Digital |
0–300V AC |
Loads Included |
100W Resistor |
Indicators |
LED Lamps (ON/OFF, Fault Indicators) |
Switches |
ON/OFF, |
Fuse |
Resettable / Replaceable (glass cartridge) |
Enclosure |
MS Powder |
Mounting |
Tabletop with heavy-duty rubber feet |
Safety |
Emergency |
🧰 Optional
Add-ons
- Advanced Digital Meter (True RMS)
- PC Interface via USB or RS485
- Data Acquisition & Logging System
- Extended Fault Injection Module
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