Microcontroller Based Distance Impedance Relay Trainer

Microcontroller Based Distance Impedance Relay Trainer :

It consists of many components i. Transmission line module ii. Voltage and current signal conditioners iii.Distance Relay iv. Multifunction Meters.


TRANSMISSION LINE MODULE :

  • Total line length - 180Km
  • Modeled by RL - parameters
  • Current rating - max 5A
  • Voltage rating - max 250V AC

VOLTAGE AND CURRENT SIGNAL CONDITIONERS :

  • One no of 5A/5V current transformer is provided to read the relay current input
  • One no of 230V/9V potential transformer is provided to read the relay voltage input

DISTANCE RELAY :

  • One PIC microcontroller used as processor to activate the relay function
  • One LCD to indicate : - Impedance set value - Current & voltage value - Set time, Relay tripping time
  • Four numbers of keys are used
  • Parameters - Current input : 0-5Amps, Voltage input : 0-230V AC - Number of contact: One number of NO contact @ 220V, 10Amp rating - Auxillary supply : 230V AC, 50Hz

MULTIFUNCTION METER :

  • One MFM provided for measuring input side all parameters (V, I, PF, F, AVR, KW)
  • One MFM provided for measuring load side line parameters