rate contract of 132 kv switchyard ht material , current transformer200/1 ( is : 16227)out door switchyard highest system voltage 145 kv insulation level 275/650 kv50 hz rated s.t.c 31.5 ka for 1 second rated frquency nominalsystem voltage 132 kv core -1 core -2 core -3 core -4 ratio primary(amp) 200 200 200 200 secondary (amp) 1 1 1 1 secondary terminals 1s1-1s2 2s1-2s2 3s1-3s2 4s1-4s2 rated burden in va ….. 20va 20va 20va accuracy class ps 5p 5p 0.2 alf/isf ….... 20 20 < 5 min knee point voltage =400v ….... ….... ….... max rct at 75 deg c =2o ….... ….... ….... max lext at vk/2 =30ma ….... ….... ….... rated continous thermal current 120% of rated primary current total creepage distance :- 3625mm (minmum) make : mehru/kappa/pragati , metering ct132 kv nominalsystem voltage 132 kv core -1 core -2 core -3 ratio primary(amp) 200 200 200 secondary (amp) 1 1 1 secondary terminals 1s1-1s2 2s1-2s2 3s1-3s2 rated burden in va 15 va 15 va 15 va accuracy class 0.2 0.2 0.2 alf/isf <5 <5 <5 make : mehru/kappa/pragati , metering pt 132 kv sr.no- op 10255/2/1/22red std. is 16227 type- outdoor oil coolded ratio: 132kv/v3 110v/v3-110v/v3-110v/v3 highest system voltage: 145 kv burden:10va-10va-10va phase :singleclass:0.2-0.2-0.2 insulation level: 275/650kvsimultaneous burden: 10va-10va-10va thermal burden: 30vatype: earthed voltage factor1.2time cont.&1.5 time for30 sec make : mehru/kappa/pragati , protection& metering pt sr.no- op 10254/2/3/22red std. is 16227 type- outdoor oil coolded ratio: 132kv/v3 110v/v3-110v/v3-110v/v3 highest system voltage: 145 kv burden:50va-50va-50va phase :singleclass:3p- 0.2- 3p insulation level: 275/650kvsimultaneous burden: 50va-50va-50va thermal burden: 150vatype: earthed frequency: 50 hz voltage factor1.2time cont.&1.5 time for30 sec make : mehru/kappa/pragati , isolator p.o no. ikepd_vn/po/19-20/368 type: hdb s.no: 3374/10423/10424/10425 rating: un-132kvrating: in-800a impulse (ui) : 650kv peakstc(ith) : 25ka rms p.f. : 275 kv rms duration :1sec make: gr power switchgear ltd.