1. Sepam case studie EN 2007_01.ppt1 Installation single-line diagram G M Transformer 63KV / 6.3KV 10MVA Generator 2MVA 30A / 5s 6A continuous 1 CSH 30A / 5s 6A continuous 3 CTs 1250 / 1 3 CTs 250 / 1 3 CTs 200 / 1 3 CTs 50 / 1 3 CTs 100 / 1 Motor 500 KW Substation feeder 1 VT 6000 V – 100 V 3 VTs 6000 V – 100 V 6 KV Transformer 6.3 KV / 410 V 315 KVA 3 CTs 50 / 1

2. Sepam case studie EN 2007_01.ppt2 Technical data Transformer incomer –63 KV / 6.3 KV –10 MVA –Ins = 1000A –Isc max = 8 KA Transformer feeder –6 KV / 410 V –315 KVA –Inp = 30A Cable feeder –2 Km –Isc min. downstream = 5 KA Genset –6 KV with coupler synchronization –2 MVA –In = 200A –Isc max = 3 x In = 600A Motor –6 KV –500 KW –p.f. = 0.95 –  = 0.87 –In = 58A –Istart = 5 x In = 290A –Tstart = 5s max Zero-sequence generator –30A 5s –6A continuous

3. Sepam case studie EN 2007_01.ppt3 Data available on front panel On all relays –currents –settings Substation protection –active and reactive power Zero-sequence generator protection –busbar voltage Incomer and Genset protection –mimic diagram showing – Vector diagram – 3 phase currents – residual current – voltage

4. Sepam case studie EN 2007_01.ppt4 Phase - Phase G M DT / 4000A / 0.4s 6 KV 51 DT / 4000A / 1s SIT / 200A / 1.5s 51 DT / 400A / 0.7s DT / 150A / 0.6s 51 DT / 400A / 0.1s 51 DT / 500A / 0.4s DT / 500A / 1s ES1 : 105% ES2 : 120% T1 : 15mn T2 : 15mn 49RMS DT / 400A / 1s 51 ES1 : 105% ES2 : 120% T1 : 10mn T2 : 40mn 49RMS Is : 150A ST : 7s LT : 0.5s 48-51LR DT / 300A / 0.1s 51

5. Sepam case studie EN 2007_01.ppt5 Choice of products SepamModulesAccessories Incomer Genset Substation Transformer Motor Zero-sequence generator Others: According to the items available to you, define all the Sepam offer products required.