Overcurrent relay testing Directional relay testing IDMT relay testing Relay testing procedures Time-current characteristics Inverse-time overcurrent relay Pickup current setting Time dial setting (TDS) Current transformer connections Fault-current simulation Polarizing signal Electromechanical relays Solid-state relays Microprocessor-based relays Time multiplier setting (TMS) Time overcurrent (TOC) Definite minimum time Relay test equipment Test sheets and documentation Directional relay angle testing All such types of relays can be tested by 3-phase automatic relay testing kits. A variety of three-phase relay test equipment are supplied by Myriad Industrial Solutions LLP