Electrical Theory: Difference between revisions
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Created page with "= Electrical Theory = = Basic Electrical Principles = == Voltage == == Current == == Resistance == == Ohm's Law == == Power Calculations == == AC and DC Fundamentals == == Series Circuits == == Parallel Circuits == = Circuit Protection = == Fuses == == Circuit Breakers == == Overcurrent Protection == == Short Circuit Protection == = Control Panel Components = == Terminal Blocks == == DIN Rails == == Power Supplies == == Contactors == == Indicator Lights == == HMI Pane..." |
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= Basic Electrical Principles = | = Basic Electrical Principles = | ||
== Voltage | == Voltage, Current and Resistance == | ||
== Ohm's Law and Power Calculations == | |||
== Ohm's Law | |||
== AC and DC Fundamentals == | == AC and DC Fundamentals == | ||
== Series | == Series and Parallel Circuits == | ||
= Circuit Protection = | = Circuit Protection = | ||
== Fuses == | == Fuses == | ||
== Circuit Breakers == | == Circuit Breakers == | ||
= Control Panel Components = | = Control Panel Components = | ||
== Terminal Blocks | == Terminal Blocks and DIN Rails == | ||
== Power Supplies == | == Power Supplies == | ||
== Contactors == | == Contactors == | ||
== Indicator Lights | == Indicator Lights and HMI Panels == | ||
== Wire Ducts and Cable Management == | == Wire Ducts and Cable Management == | ||
= Relays = | = Relays = | ||
== Relay Construction == | == Relay Construction and Operation == | ||
== Coil and Contact Ratings == | == Coil and Contact Ratings == | ||
== Electromechanical | == Electromechanical vs Solid State Relays == | ||
== Time Delay Relays == | == Time Delay Relays == | ||
= Contact Configurations = | = Contact Configurations = | ||
== Normally Open | == Normally Open and Normally Closed == | ||
== Common Terminal == | == Common Terminal == | ||
== Changeover Contacts == | == Changeover Contacts == | ||
= Contact Types = | = Contact Types = | ||
== Wet | == Wet and Dry Contacts == | ||
== Voltage Free Contacts == | == Voltage Free Contacts == | ||
= Transistors in Control Systems = | = Transistors in Control Systems = | ||
== NPN and PNP Outputs == | |||
== NPN | |||
== Sinking and Sourcing == | == Sinking and Sourcing == | ||
= Floating Voltages = | = Floating Voltages = | ||
== | == Causes and Measurement == | ||
== Safety Considerations == | == Safety Considerations == | ||
= Transformers = | = Transformers = | ||
== Operating Principles == | == Operating Principles == | ||
== Step Up | == Step Up and Step Down == | ||
== Isolation Transformers == | == Isolation Transformers == | ||
== | == Sizing and VA Ratings == | ||
= Earthing and Grounding = | = Earthing and Grounding = | ||
== Protective | == Protective and Functional Earth == | ||
== Bonding == | == Bonding == | ||
= Shielding and Interference = | = Shielding and Interference = | ||
== | == EMI and RFI Sources == | ||
== Cable Shielding and Separation == | |||
== Cable Shielding | |||
== Filtering and Suppression == | == Filtering and Suppression == | ||
= Wiring Practices = | = Wiring Practices = | ||
== Wire Sizing | == Wire Sizing and Voltage Drop == | ||
== Termination Methods == | == Termination Methods == | ||
= Common Faults = | = Common Faults = | ||
== Earth Faults | == Earth Faults and Insulation Breakdown == | ||
== Loose Terminations and Coil Failures == | |||
== Loose Terminations | |||
== Intermittent Connections == | == Intermittent Connections == | ||
= Fault Finding | = Fault Finding = | ||
== Multimeter Use and Continuity Testing == | |||
== Multimeter Use | |||
== Insulation Resistance Testing == | == Insulation Resistance Testing == | ||
== Systematic Troubleshooting == | == Systematic Troubleshooting == | ||
= Electrical Safety = | = Electrical Safety = | ||
== Safe Isolation | == Safe Isolation and Lock Out Tag Out == | ||
== Working on Live Equipment == | == Working on Live Equipment == | ||