SABIC vendor number 11054058 Electrical Training course 1. Fundamentals & Basics A. Electrical fundamentals AC system Voltage Current Frequency Power Power factor Energy DC system Voltage Current Stored energy B. Mathematical fundamentals Vectors Phaser diagram Symmetrical component Positive sequence. Negative sequence. Zero sequence. 2. Electrical systems A. Electrical networks Generation Transmission Distribution B. Substations electrical system properties Sensitivity Selectivity & coordination Reliability Speed 3. Electrical substation elements: Power elements : Switchgear types: Gas insulated switchgear (GIS) Air insulated switchgear (AIS) Gas Insulated busbar (GIB) SABIC vendor number 11054058 Electrical Training course Transformer (XFMR) (TRAFO) Two winding Main oil transformer Three winding Main oil transformer Distribution / auxiliary oil transformer. Distribution / auxiliary Dry transformer. Circuit breaker (CB) SF6 gas insulated CB Vacuum circuit breaker (VCB) Oil circuit breaker Two position isolator. Line isolator. Ground/earth isolator Three position isolator. Line & earth isolator. Busbar Current transformer Protection CT Metering CT Voltage transformer Power cables Capacitor bank Dynamic capacitor bank Static capacitor bank Generators (GEN) Neutral ground resistor (NGR) Protection & controlling elements : Protection relay Electromedical relay Static relay Advanced intelligent relay Special purpose relay auxiliary relay Multiplication relay Supervision relay Multifunction Metering devices SABIC vendor number 11054058 Electrical Training course Test switches Terminal blocks Thermal sensors MCB Medium voltage fuses Low voltage fuses MCCB Panel heaters Metering elements : Multifunction Metering devices Analog metering devices Recording & alarming elements : Alarm systems Sequential Event recorder Fault recorder Alarm annunciation system Motor controlling system Communication system : supervisory control and data acquisition (SCADA) Substation Automation System (SAS) Distributed Control System (DCS) Tele protection communication system Communication topology/protocols 4. Ring topology Radial topology Star topology Bus Topology Parallel redundancy protocol (PRP) High-availability seamless redundancy (HSR) Generic object oriented substation event (GOOSE) protocol Protection functions: General protection/control functions Inverse definite minimum time overcurrent protection (IDMT) Definite time overcurrent protection SABIC vendor number 11054058 Electrical Training course Instantaneous time overcurrent protection Under voltage protection Over voltage protection Negative-sequence overvoltage protection Under frequency protection Over frequency protection Synchronism and energizing check SECRSYN Arc protection ARCSARC Load-shedding and restoration Fault locator function. Busbar protection functions Numerical stabilized low-impedance differential protection Numerical stabilized high-impedance differential protection Transformer protection functions Stabilized and instantaneous low-impedance transformers differential protection (87T) Numerical stabilized low-impedance restricted earth-fault protection (87NLI) High-impedance based restricted earth-fault protection HREFPDIF (87NHI) Line differential protection functions Distance protection functions Motor protection functions Thermal Over Current (49M) Motor start protection (48/66) Motor No of start protection (66) Motor High-impedance or flux-balance based Differential protection (87HIM) Motor Jam protection (51LR) Unbalance load protection (46) Loss of phase protection (37) Motor Stabilized and instantaneous Differential protection (87M) Reverse power/directional overpower protection (32R/32O) Underpower protection (32U) Generator protection functions Over excitation protection SABIC vendor number 11054058 Electrical Training course Under excitation protection 5. Supervision functions: Trip circuit supervision functions Current circuit supervision Fuse failure supervision Current circuit supervision Circuit-breaker condition monitoring