Micro controller based IDMT/DMT type over/under voltage relay study   trainer

MICRO CONTROLLER BASED OVER/UNDER VOLTAGE RELAY

• One no. of PIC-Micro controller used as processor to read fault-voltage, & relay function.
• One no. of LCD to indicate Voltage & Time parameter
• Five no’s of key used for Time and set point adjustments.
• One no. of 230/9V PT used to sense fault voltage.
• One no. of 12v auxiliary relay used for contactor operation.
• One no .of LED provided to indicate the relay tripping condition

SPECIFICATION:

• Voltage Input: 0 – 23 0volt
• Number of contact: One number “NC” contact @ 220V, 5Amp rating, one
• of “NO” contact @ 220V, 5amp rating. Auxiliary Supply:  230V AC, 50Hz
• Power ON/OFF switch with indicator.

VOLTAGE INJUCTION SOURCE

• One no. of auto transformer used for voltage adjustment.
• Voltage output terminated in the banana-sockets
• Specification: Voltage range: 0-230V AC. (Continuously variables)

EXPERIMENTS:

• Study & Test DMT type Over/Under-voltage relay with different voltage & time settings
• Study & Test of IDMT type Over/Under voltage relay with different voltage & time settings

 Optional:

• PC Interface with the above Relay