MJL.C

lectured notes for

SUBSTATION DESIGN COURSE for EE 5-2 and EE 5-3

STUDY, DESIGN ,INSTALLATION, CONSTRUCTION AND TEST METHOD OF SUBSTATION EQUIPMENT INCLUDING PROTECTIVE RELAYING AND SHORT CIRCUIT ANALYSIS.

COURSE OBJECTIVE :TO GIVE STUDENTS OF ELECTRICAL ENGINEERING A GENERAL PATTERN AND PRACTICAL METHOD ON HOW TO DESIGN,INSTALL AND TEST METHOD OF SUBSTATION EQUIPMENT OF WHICH SUCH INFORMATION AND WORKSHOP WILL HELP THEM IN THEIR PROFESSIONAL PRACTICE AFTER GRADUATION.

PRE-REQUISITE :• ELECTRICAL EQUIPMENT• AC CIRCUITS• AC MACHINERIES• ELECTRICAL MACHINE DESIGN• ELECTRICAL POWER SYSTEM

COURSE OUTLINE :1.0 SUBSTATION DEFINITION AND TYPE2.0 SUBSTATION STANDARD SYMBOLS FOR UNITS3.0 SUBSTATION ELECTRICAL SYMBOLS4.0 SUBSTATION MAJOR EQUIPMENT AND ITS SPECIFICATIONS4.1 POWER TRANSFORMER4.2 POWER CIRCUIT BREAKER4.3 METAL CLAD SWITCHGEAR4.4 AIR SWITCHES4.5 DISCONNECT SWITCH4.6 LIGHTNING ARRESTER4.7 INSTRUMENT TRANSFORMER4.8 GROUNDING SYSTEM4.9 GANTRY STRUCTURE5.0 SUBSTATION IN THE PRACTICE5.1 TYPE OF SUBSTATION5.2 NATIONAL GRID CORPORATION OF THE PHILS(NGCP)SUBSTATION5.3 MERALCO STANDARD SUBSTATION5.4 NATIONAL ELECTRIFICATION ADMINISTRATION(NEA) SUBSTATION5.5 ELECTRIC COOPERATIVE SUBSTATION5.6 UNDERGROUND SUBSTATION6.0 SHORT CIRCUIT CALCULATION7.0 PROTECTIVE RELAYING8.0 TRANSFORMER PROTECTION9.0 SUBSTATION EQUIPMENT TEST METHOD10.0 SUBSTATION BILL OF QUANTITIES

1.0 DEFINITION OF SUBSTATION…………………. PRIMARY SUBSTATION RECEIVED POWER GENERATED BY A POWER STATION RANGE FROM 1kV TO 26kV AND IS FED TO TRANSFORMER THAT STEP THE VOLTAGE UP TO HIGHER VALUES MORE SUITABLE FOR TRANSMISSION.SUBSTATION CONTAIN POWER TRANSFORMER AND VOLTAGE REGULATING APPARATUS REQUIRED FOR CONVERTING THE HIGH INCOMING SUB-TRANSMISSION VOLTAGE TO LOWER PRIMARY SYSTEM VOLTAGES AND MAINTAIN THEM WITHIN SPECIFIC VOLTAGE