Electromechanical type IDMT over current relay study trainer

• Relay Make: ALSTOM / AVOMEC./ MEGAWIN /AREVA
• One number Electro-Mechanical type Over Current Relay
  • Current Rating: (2-10) Amps
  • Current Setting multiplier
  • Time setting Multiplier
  • One number of NO contact @ 220V, 10Amp rating
  • One number of NC contact @ 220V, 10 Amp rating
• Current Injection source:
  • One no. of auto transformer provided for current adjustment
  • One no. of loading transformer used for current source
  • Current output applied to relay coil.
  • One no. of digital ammeter used to indicate current
  • Specification: current range: 0-20 Amp AC. (continuously variable)
  • One no. of automatic relay tripping time measurement circuit.
  • One no. of Digital timer provided to measure relay tripping time.
  • One number of reset switch provided for timer reset.
  • One number of MCB (6Amp, 2 pole) provided for power on/off.
• Two numbers of LED provided for start / stop Induction of relay
• Relay NO/NC contact terminated at balance sources
• One number of picot lamp provided for relay tripping Induction
• Start / Stop switch provided to Start / Stop the relay operation

EXPERIMENTS:

• Study & testing of over current relay IDMT type with different current & time setting multiplier.
• Plotting of IDMT characteristics of over current relay.