Creativity Session

METRO/SOUTHERN REGIONAL CONTROL CENTRE (MSRCC)

WELCOMES THE DELEGATES FROMSURUHANJAYA TENAGA

3rd. APRIL 2015

CONTENT :

OVERVIEW TNB POWER SYSTEM.

ORGANIZATION STRUCTURE OF REGIONAL CONTROL CENTRE (RCC).

AREA OF COVERAGE.

SUPPLY DEMAND.

FUNCTIONS & ROLE.

NUMBER OF INSTALLATIONS UNDER RCC CONTROL.

SCADA OVERVIEW

OVERVIEW OF TNB POWER SYSTEM

MV DistributionSystem(RCC)33kV/22kV/11kV/6.6kV

LV DistributionSystem0.415kV(CMC) PPBHV TransmissionSystem(NLDC)275kv/132kvORGANIZATION STRUCTURE DISTRIBUTION SYSTEM OPERATIONMETRO/SOUTHERN CONTROL CENTER (MSRCC)(located in Bangsar, Kuala Lumpur)

NORTHERN/EASTERN CONTROL CENTER (NERCC)APERLISKEDAHPULAUPINANGPERAKKELANTANPAHANGTERENGGANUNorthern & Eastern Regional Control Centre, TNB Seberang JayaNRCC: 20 controllersERCC: 15 controllersMetro & Southern Regional Control Centre, BangsarMRCC: 25 controllersSRCC: 20 controllersSELANGORKL & PUTRAJAYAJOHORMELAKAN.SEMBILAN

NERCC Backup Center, Bayan BaruMSRCC Backup Center, TNB Klang

5Peninsular Malaysia = 131,805 sq kmTotal Max. Demand = 16,901 MWAs of June 2014 MSRCC Covers 6 States : Selangor 8,200 sq kmW.P. KL 244 sq km(iii) Putrajaya 49.31 sq km(iv) N. Sembilan 6,645 sq kmMelaka 1,658 sq kmJohor - 19,984 sq kmTotal = 36,780.31 sq km (30%)Max. DemandSelangor = 3,848 MW(ii) W.P. KL = 2,399 MW(iii) Putrajaya = 218 MW(iv) N. Sembilan = 616 MW(v) Melaka = 573 MW(vi) Johor = 2,432 MWTotal = 10,086 MW (68%)MSRCC Areas of ControlPULAUPINANG6PERLISKEDAHPERAKKELANTANPAHANGTERENGGANUSELANGORMELAKAN.SEMBILANJOHORKL & PUTRAJAYA

MSRCC

6PERLISKEDAHPULAUPINANGPERAKKELANTANPAHANGTERENGGANUPenin. Malaysia = 131,805 sq. kmTotal Max. Demand = 16,901 MWAs of June 2014NERCC Areas of ControlCovers 7 States: Perlis810 sq km(ii) Kedah9,426 sq km(iii) Pulau Pinang1,031 sq km(iv) Perak21,000 sq km Kelantan14,943 sq km Pahang35,965 sq km(vii) Terengganu12,955 sq km Total = 96,130 sq kmMax. Demand Perlis = 88 MW(ii) Kedah = 730 MW(iii) Pulau Pinang = 1,530 MW(iv) Perak= 1,133 MW Kelantan = 350 MW Pahang = 560 MW(vii) Terengganu = 360 MW Total = 4,751 MW (32%)

NERCC NERCC

ELECTRICITY DEMANDINSTALLATION UNDER RCCRCCSTATENOS. PMUNOS. PPUNOS. SSUNOS. PESRCCJOHOR736828912,937MELAKA2331772,678NEGERI SEMBILAN2943703,780MRCCSELANGOR621728615,100KUALA LUMPUR32131336,611PUTRAJAYA4135493NRCCPERLIS460589KEDAH2348224,953PULAU PINANG1961475,137PERAK39571736,824ERCCKELANTAN81553193TERENGGANU1714692564PAHANG30131614,578TOTAL363605143769,437(As of June 2014)TYPICAL RCC ORGANIZATION STRUCTUREDISTRIBUTION SYSTEM OPERATIONA Distribution Regional Control Centre for the control and safe operation of the power supply to Kuala Lumpur, Selangor, Putrajaya & N.Sembilan, Melaka, Johor.

Operates 24 hours daily on 3 shifts of System ControllersMetro/Southern Regional Control Centre (MSRCC)

11OPERATION MODE OF RCCMorning Shift : 0800-1500Evening Shift : 1500-2300Night Shift : 0000 -0800Core Functions of Operations

Maintain & Ensure Security of Supply for 33 & 11kV Electrical NetworksRestore Supply Fast & Safely Manage System Crisis and ContingenciesRoles & ResponsibilitiesEnsure security of supply for 33 & 11kV systemEnsure transformers, switchgears and cables operateWithin rated capacity and voltageExpedite isolation & restoration of supply safely Provide daily, weekly and monthly reports to top managementLoad shedding, contingency plans & under-frequency managementIssuance authorizations /sanctions to field worker PROCESS STANDARDIZATION & IMPROVEMENT1. ENGR-750-21 - plan outage

2. ENGR-750-22 - breakdown management

3. ENGR-750-23 - load management1. ENGR-750-21 - plan outageRCCS FUNCTIONS & RESPONSIBILITIES)

Prepare Switching SequenceProject, System Improvement, Increase Tx CapacityPrepare Schematic Update 16Ensure transformers, switchgears and cables operateWithin rated capacity and voltageRestore supply safely in the fastest possible timeIssue authorizations and sanctionsLoad shedding, contingency plans & under-frequency managementSectionalise, isolate system for maintenance, projects & fault locationENGR-750-22 - breakdown managementManage System Crisis and ContingenciesOperate SCADA System

17

ENGR-750-23 - load managementFeeder loading > 50% /fdrTransformers Loading> 600A/txOff-point OptimizationAutomatic Feeder Reconfiguration18To Provide :

- daily, - weekly and - monthly reports (i.e. Breakdown Report)

REPORTING19SCADA/DASCADA stands for Supervisory Control And Data Acquisition. It generally refers to an industrial control system: a computer system monitoring and controlling a process. The process can be industrial, infrastructure or facility.

FUNCTIONS OF SCADAA SCADA system performs four functions:

Data acquisition

Networked data communication

Data presentation

Control

SIP

Remote Terminal Unit (RTU)

PMU/PPUMaster System RCCSupervisory Interface PanelSwitchgear / Transformer

RCC Control RoomComms. Network Maintenance To provide the system operators with sufficient information and control to operate the power system, in a safe and secure mannerFunctional Tests From Plant to M/PanelRemote Terminal UnitsMaintenanceMaster System Maintenance Barco System Operation & MaintenanceInvolve in RTU & Comms. Installation,testing & commissioningFunctions & Responsibilities of SCADA Maintenance UnitFUNCTIONS OF SCADAThese functions are performed by four kinds of SCADA components:

1. Sensors (either digital or analog) and control relays that directly interface with the managed system.

2. Remote telemetry units (RTUs). These are small computerized units deployed in the field at specific sites and locations. RTUs serve as local collection points for gathering reports from sensors and delivering commands to control relays.

FUNCTIONS OF SCADA3. SCADAmaster units. These are larger computer consoles that serve as the central processor for the SCADA system. Master units provide a human interface to the system and automatically regulate the managed system in response to sensor inputs.

4.The communications network that connects the SCADA master unit to the RTUs in the fields

THANK YOU