Single Phase Over Current Relay Training System is a useful learning product for electrical laboratories. Over Current Relay monitors general balanced overloading and have current/time settings. These settings determine the protective schemes.

The relay is IDMT type which has different tripping time characteristics with different current conditions. These are classified in accordance with their characteristic curves which indicate the speed of tripping operation. The typical settings for relay are 0.5-2 Amp. Over Current Relay Testing System is an ideal platform to enhance education, training, skills & development amongst our young minds.

• Electromechanical relay to understand internal mechanism and its working
• Inbuilt automatic timer
• Microcontroller based digital measuring instruments for better accuracy

• Inbuilt Current Source Diagrammatic representation for the ease of connections
• Front board consist of MS Material with power coating / epoxy paint to avoid any rust
• Separate auxiliary supply to actuate digital measuring devices

• Specially designed BS10 Terminals and patch cords for electrical safety
• Earthing screw provided at the back side of the control set-up
• Product is provided along with protection fuses, colored patch cords, single phase cords, User’s manual having  

 theory operating procedure with connecting diagram, FAQ, Glossary, etc

• Mains Supply                                                    : 230V ±10%, 50Hz
• Rheostat                                                              : 110ohm, 5A
• Single Phase Variac
• Input                                                                     : 230V
• Output                                                                  : 0 – 270V
• Current                                                                 : 0 – 5A
• Over Current Relay
• Make                                                                     : Alstom
• Type                                                                      : Inverse Time
• Normal Voltage                                                 : 110V AC, 50Hz
• Current Setting                                                  : 0.5A, 0.75A, 1A, 1.25A, 1.50A, 1.75A and 2A
• CT Secondary                                                     : 1A
• Measuring Instruments
• Digital Voltmeter                                             : 300V
• Digital Ammeter                                               : 10A
• Digital Timer                                                       : 10mSec – 90min

• To study the IDMT Over-Current Relay & its applications 
• To study and use plug setting multiplier
• To study and use time setting multiplier