Road Map for Improvement of SAIFI , SAIDI & CAIDI

1. 3rd Arab Union of Electricity, Electricity Distribution Conference Salalah-Sultanate Oman 27th – 29th August 2012 Presented by: Eng. A.Aziz Al Alawi Director, Electricity Distribution Directorate Kingdom of Bahrain Road Map for Improvement ofSAIFI , SAIDI & CAIDI

2. Contents • Road Map for Improvement of SAIFI , SAIDI & CAIDI • DMAICApproach • Learning From The Current Experience • ElectricityDistribution Directorate (EDD) Maintenance Process • Operational Loading Policy of Feeders • Maintenance Policy • EDD Maintenance Strategies • Maintenance Criteria • Maintenance Program 2011-2012 • HV / LV Reinforcement & Replacement Program • 11kV Cable Fault Elimination • Improvement Program 2012-2013 • SAIFI, SAIDI, CAIDI Targets • Recommendations

3. Road Map for Improvement of SAIFI , SAIDI & CAIDI KPIs An Assessment tool for improvement process Presented by Engineer Heyam Nassr Operation & Loading Policy Maintenance Practice Achievement of Target Improvement Improvement of KPI (SAIFI, SAIDI, CAIDI) Improvement 11kV & LV Cable Fault Elemenation Maintenance programs Reinforcement & Replacement Programs

4. DMAIC APPROACH

5. Learning From The Current Experience Policies, SOPs, Design, Specifications, Strategy Prevention Condition Monitoring Program Condition Based Maintenance Asset Replacement Program Prevention Fixed Time Maintainence Reliability and Quality- Power Delivery Containment Generator Mobilization Operational Readiness and Fast Response Remote Controlling and Monitoring Capabilities Network Protection Systems Containment Decide What To Do Based On Our Own Experience

6. EDD Maintenance Process To align EDD’s objectives with EWA‘sobjectives of achieving the agreed N/W operating conditions and quality, within the accepted N/W conditions and safety standards and at minimum cost. • 3 Maintenance Depots of Muharraq, Manama and Riffa • Outsourcing . • Implementing of Asset Management Concept. • 3-Lines Maintenance • Wall boxes, Service Twin Wires, 11kV Over head lines and s/s Ensuring and Controlling the reliability of HV & LV Networks Controlling and monitoring of Productivity, Effectiveness, and Organization Efficiency.

7. Operational Loading Policy of Feeders • 11kV network • 150A(3 MVA) up to open point for copper cable feeders (50% cable loaded) • 125A (2.5MVA) up to open point for aluminum cable feeders (50% cable loaded) • Controlled by Distribution Control Centre (DCC) • 400V network • Maximum feeder load is 150kVA (5*60Amp, 3*100Amp, 2*160Amp or 1*250Amps) • Controlled by Low Voltage Operations

8. Maintenance Policy • Maintenance Scheduling: • Planned maintenance will be scheduled on an annual and monthly basis and be approved, in advance by DCC & LV Operation, as appropriate. • Preventive maintenance and corrective maintenance should be planned and scheduled jointly by Maintenance & Operations groups. • Overtime will be authorized based on the related StandardOperating Procedure (SOP). • Materials Requirements: • Maintenance planning will include identification of requirements of materials and manpower; EDD and outsourced. • Materials Requirements will be identified and expressed by Maintenance Group. • Planning & Materials section will then deliver materials as and when specified. • Safety and Operating Procedures: • HV and LV isolation works shall be done in accordance with the standard operating procedures. • Mobilization of generators connection shall be done in accordance with standard operating procedure.

9. EDD Maintenance Strategies • 3-linesMaintenance Strategy. • Continuous improvement of the network: Reinforcement and Correction Maintenance. • Fully implementation of CASCADE, via computerizedMaintenance Management System. • Staff training and development (Multi skilling) • Deployment of new technologies such as Responder, to enhance quality of our services.

10. 3-Lines Maintenance Strategy • First Line Maintenance Strategy • To Carry-Out Inspection: • Objectively, by using Infrared Camera for inspection of Transformers, LV Panels & 11kv Overhead), 11KV Network partial Discharge test. (Condition Based Maintenance) • Subjectively, by visually inspection of HV and LV transformer connection, oil checking, silica gel checking, etc. • To Respond to Inspection Results: • Cleaning and minor rectification of equipment defects of LV Panel Board and Ring Main Units (RMUs) • Refurbishment and cleaning of wall boxes.

11. Second Line Maintenance Strategy • Replacement of defective items/components based on: • Inspection of the First Line Maintenance • Time Schedule Maintenance. • Third Line Maintenance Strategy • Life cycle Asset Assessment: • Transformers (35-40 years), • RMUs Oil (25 years) and RMU SF6 (15 years), • LV Board (30 years), • HV Cables (40 years), LV cables (35 years), • 11kV poles switches (35 years), • Air Break Switches(35 years)

12. Maintenance Criteria

13. Maintenance Program 2011-2012 • Replacement of 20 km of service twin wires. • Maintenance of 1,000 Substations. The target will be increased to 4,000 Substations (S/S) for 2012,2013 . • Inspection of all overloaded Substations with emphasis on equipment with history of repeated faults. • Replacement of 200 units of transformer RMUs and LV Panels in the Substations. • Inspection and maintenance of 11 kV circuits terminations in Primary S/S, and in coordination with Transmission Directorate program.

14. Maintenance Program 2011-2012 • 11kV Partial Discharge measurements for feeders whose load is more than 300Amp. • Upgrade Transformers of which loads exceed 80% of it capacity. • Verifying functionality of 11kV protection system in RMUs. • Replace any RMUs of which fault current capacity is lower than 350MVA. • Install Moulded Case Circuit Breakers (MCCB) at Customer side. • Using Mini Feeder Pillars for the 400 Volts N/W. • Activate/ install new Earth Fault Indicators (EFIs). • Procurement of advanced HV Cable Fault locating equipment.

15. HV / LV Reinforcement & Replacement Program • HVreinforcement 43 • HV cable replacement 5 • LV reinforcement 496 • LV replacement 71 • Uprating transformer from 1000kVA to 1500KVA 81

16. 11kV Cable Fault Elimination • Partnership with Electricity Distribution Directorate • Pre-qualification of Contractors • Work Specifications / Job Catalogue • Training on proper practices - Contractors • Cable Joint procedures / Tools • Procedure for Contractor reporting of materials defects • Qualification of Supervisors/inspectors • Supervisors Procedure and List of Actions by the Supervisors • Maintain proper record of Joints/Cables? Tagging system • Procedure for Supervisor reporting of materials defects /bad workmanship • Training on proper practices – EDD Supervisors

17. Improvement Program 2012-2013 • Automation of RMU Operations • Automation of Earth Fault Indicators • MCCB (Moulded Case Circuit Breakers) to control unauthorized load • To replace the LV Underground joints with Mini Feeder Pillars • Activation of CASCADE system (Computerised Maintenance System) • Utilization of Vehicle Tracking System

18. SAIFI, SAIDI, CAIDI Targets The number of interruptions 2011 and 2012 • The interruptions in 2012 increased due to unauthorised loads.

19. SAIFI, SAIDI, CAIDI Target • Significant improvement is registered in SAIFI & SAIDI in 2012 over 2011.

20. Recommendations • Learning from the current experience and decide what to do based on our experience • People Drive Performance – enabling more people across the enterprise to increase competitive advantage • Adaption of 3 skilled capabilities (Monitoring, Analyse, Plan) • Superiority in Monitoring – The monitoring capabilities will allow to execute on strategy and to increase the competitive advantage by improving on benchmarks on day-to-day operations. • Superiority in Analyse – The analytic capabilities can be leveraged to enhance monitoring and planning capabilities. • Superiority in the Plan – The capability in plan can attain the power to compete and to increase monitor plan & budget forecasts more broadly across the board.

21. T H A N K Y O U