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  • Basic principal of electromagnetic relay
  • NO/NC and Power Contacts
  • Power Circuit & Control Circuit
  • Use of NO/NC contacts in control & power circuit(for experiments on control relay)
  • Hold on circuit(one experiment on container)
  • One output to be controlled from to push buttons station (on contractor & four push buttons)
  • D.O.L. starter(one experiment)
  • Use of timer(one experiment)
  • Star delta starter (one experiment)
  • Use of level Sensor (one experiment)