ABB Crompton Greaves Siemens Sehneider

3p non -dir  idmt  3 o/c + 1 e/f  relay designation of relay

numerical  non -communicable  fp idmt +inst 3 o/c + 1e/f

relay flush mounting type

over current idmt setting 5% to 200% of  ct secondary

earth fault  idmt setting 5% to 200% of  ct secondary

instantanious o/c  setting 50- 1600% in step of 1%

instantanious e/f  setting 50- 1600% in step of 1%

ct secondary current 1a or 5a programmable

dmt of relay programmabvle with 5 selectable

auxilliary supply  ac/dc 18-52v dc

differntial relay designation of relay

suitable for 2 wdg trf

auxiliary supply :24dc

ct secondary current 1a or 5a site selectable

numerical communicable  with iec 103 protocol

the relay should have integral current amplitude and vector group

master trip relay contacts 3n/o+1n/c . Hr aux supply 24v dc

auxiliary relay for transformers  faults title of aux relay : voltage op aux relay 3 ele  auxilliary supply  ac/dc :24v dc on of contacts : 4 n/o hr  met -flush  (oti+wti+bucz)