System Elements

System Elements

System Elements & Components

ETAP AC Element Toolbar
  • AC 1-phase, 2-phase & 3-phase elements
  • DC elements
  • Distribution Equipment
  • Traction Equipment
  • Switching devices
  • Protective devices
  • Source elements
  • Branch elements
  • Load & Motor elements
  • Instrumentation (Relay, Meter, CT, VT, PT)
  • Power conversion – AC/DC elements
  • DC control system elements
  • Underground raceway elements
  • System grounding elements
  • Unlimited buses: license dependent at run-time
  • Nested network views - composite networks & MCC

    

Sources

Branches

  • Two-Winding Transformer with voltage regulators
  • Three-Winding Transformer with voltage regulators
  • Three Single Phase Transformers
  • Open-Delta Transformer
  • ZigZag Grounding Transformer
  • Power Cable
  • Current Limiting Reactor
  • Overhead Transmission Line
  • HVDC Transmission Link
  • Impedance
  • Current Limiting Reactor
  • Series Capacitor
  • Distribution Voltage Regulator

Bus

  • Node
  • MCC
  • Switchgear
  • Switchboard
  • Switchrack
  • Panelboard
  • Cable Bus
  • Open Air
  • Bus Duct
  • Busway (Trunking Busbar)

Loads

  • Induction Motor
  • Lumped Load - voltage & frequency dependent
  • Static Load
  • Panel System
  • Static Var Compensator (SVC)
  • Synchronous Motor
  • Synchronous Condenser
  • Motor Operated Valve (MOV)
  • Capacitor
  • Switched Capacitor
  • Harmonic Filter - Single Tuned, High-Pass, Band Pass, 3rd Order Damped & C-Type

Instrumentation Elements

  • Current Transformer (CT)
  • Potential / Voltage Transformer (PT / VT)
  • Voltmeter
  • Ammeter
  • Multimeter
  • Voltage Relay
  • Frequency Relay
  • Motor Relay
  • Differential Relay
  • Reverse Power Relay
  • Solid-State Trip Relay
  • Overcurrent Relay
  • Distance Relay
  • Overload Relay
  • Multi-Functional Relay

Protective & Switching Devices

  • Fuse
  • High Voltage Circuit Breaker
  • Recloser
  • Overload Heater
  • Single Throw Switch
  • Double Throw Switch
  • Ground Switch
  • Contactor
  • Low-Voltage Circuit Breaker
  • In-line Overload Relay

Power Conversion - AC-DC Elements

  • Uninterruptible Power Supply (UPS)
  • Variable Frequency Drive (VFD)
  • Battery Charger / Rectifier
  • Inverter

DC Elements

  • Battery
  • DC Motor
  • DC Static Load
  • DC Lumped Load
  • DC Branch Impedance
  • DC Cable
  • DC-DC Converter
  • DC PV Array - License dependent
  • DC Fuse
  • DC Circuit Breaker
  • DC Switch - Single & Double Throw

DC Control System Elements

  • Bus
  • Fuse
  • Circuit Breaker
  • Push Button
  • Switch
  • Contact
  • Double Contact
  • Macro-Controlled Contact
  • Wire
  • Impedance
  • Light
  • Solenoid
  • General Load
  • Control Relay

Other

  • Exciters
  • Governors
  • Power System Stabilizers (PSS)
  • Remote Connector
  • Grounding/Earthing Adapter
  • Phase Adapter
  • Ground Grid System
  • Composite Network - Nested Network
  • Composite Motor - Nested MCC

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Literature

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Electrical Power System Analysis