Emergency Manual Load Shedding and Peak Load Reduction ...

Appendix 3OO 6T-29Effective Date: 02 July 2014Page 9 of 13EMLS – Northern Interior Area1.0 EMERGENCY MANUAL SHEDDING BLOCKSManual load shedding may require up to 50% of the area load to be shed in 3 blocks within 5 minutes.The shedding described in the table is in order of priority within each block.If under frequency load shedding has occurred, some of the loads may already have been shed.Voltage should be monitored frequently while load is being shed. At the direction of the TC, circuitsshould be cut out as necessary to control the voltage.Once load shedding complete, switching should commence to restore station service to affectedstations.EMLSBlock1 CRDStation Device AffectedStations/CircuitsWSN60CB3, 18, 11, 13(Check CRD transfer bus)60CB2, 3CRD60L338 (BCM,HCR, FMC- 50%) *MWLoadSCK 60CB6, 7 60L310 60RUP 60CB10, 15 60L392 16* Advise FMC to shed all loadafter EMLS is completedSub Total 2362 BLW 2CB2, 6 2L307 105MFE 1CB1, 6 1L366, 368 5GLN 1CB2, 3 1L384 23TKW 1CB9, 11 1L396 47Sub Total 1801603 RBF 25CB11, 13 RBF (25KV Load) 30FHS 25CB1, 25CB2 FHS 20BVY 60CB1, 3, 9, 11 60L354 (CHF) 26BVY (25 kV load) 24KDS 2CB1, 2CB3 2L319 (MML) +702L320 (KMI)Sub Total 170TOTAL 5862.0 EMERGENCY MANUAL LOAD SHEDDING PROCEDUREShedding should be carried out using the EMLS OV screen as shown in Appendix 5 (Figure 1). Thereal time loading on each element to be shed is shown on the screen. Follow the steps in sequentialorder as listed in the above table to shed each block: