• The relay module is based on the Micom industrial relay. 
• The lecturer or student sets up different fault circuits on the Protection and Relay Test Set. 
• Use the keypad and display on the relay module to program it to the settings needed for the tests. 
• They can also use the Micom S1 software and a suitable computer to program the relay module. 
• The relay module is then connected to the fault circuits so tests can be performed. 

The main functions of the Distance Protection Relay include:

• Broken conductor.
• Blocking of any one protection element.
• Creating fault and disturbance records.
• Directional/non-directional phase overcurrent.
• Directional/non-directional earth fault.
• Directional/non-directional negative sequence overcurrent .
• Thermal overload protection.
• Full scheme phase and ground distance protection – up to five zones.