Micro controller based sequence current relay test set up

This set up is designed to study the working principle of Negative sequence current protection of three phase Ac – source / alternator, It consists of

MICRO CONTROLLER BASED NEGATIVE SEQUENCE CURRENT RELAY

• One no. of PIC Micro controller used as processor to read Three phase Ac current, & activation of relay function.
• One number LCD to indicate current & Time Constants.
• Four no. of key used for set point adjustments
• Three number of 5A CT used to sense three phase current.
• One no. of 12V Auxiliary relay used for contractor operation.
• Four no of LED’s provided to indicate the un biased, Alarm, trip & DMT operation

SPECIFICATION:

• Current input: 5Amp
• One Number “NO”&”NC” contact @ 220V, 5Amp\ rating.
• Auxiliary supply: 230V AC, 50Hz
• Power ON/OFF switches with indicator.