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