An electrical circuit describes about the current and voltage flow. This flow is different for different types of circuits like open, closed and short circuits. To measure this current and voltage Kirchhoff's current and voltage laws are used. It comprises of poly phase systems like star & delta systems, and their power factor analysis. This power factor varies with balanced loads and unbalanced loads.

This course is designed to have basic knowledge about the electrical circuits, mesh & node analysis and also describes about the balanced and unbalanced loads in detail.

After completing the course students will know how to calculate the current, voltage& resistance in a circuit, a wide knowledge about complex inductance, power factor analysis and poly phase systems.

WHO SHOULD COMPLETE THIS COURSE?

- Electrical Engineers
- Electronic engineers
- Circuit design engineer
- Electronics Technician
- Instrumentation engineers
- Subject matter experts
- Plant/Facility Engineers

**COURSE OUTLINE**

ELECTRICAL CIRCUITS

- Electrical quantities and units
- Ohm's law
- Determining V,I,R
- Power calculation
- Circuit formula
- Exercises
- Resistance calculation
- Temperature & resistance
- Resistance colour coding
- Resistance tolerance

SERIES & PARALLEL CIRCUITS

- Single path circuits
- Characteristics of series circuits
- Closed circuit
- Open circuit
- Short circuit
- Voltage divider
- Exercise

MEASURING VOLTAGE, CURRENT & RESISTANCE

- Method 1
- Method 2
- Resistors in parallel
- Current divider rule
- Parallel circuits
- Kirchhoff's Current law
- Kirchhoff's Voltage law
- Examples

MESH CURRENT

- Mesh analysis - 1 loop
- Mesh analysis - 2 loops
- Mesh analysis - 3 loops
- Node analysis – 1 node
- Node analysis – 2 node
- Mesh analysis – 2 loop – multiple circuit
- Inductors in series & parallel

CAPACITORS

- Capacitance – charge
- Capacitors – power
- Capacitors – energy
- RC- charging with example
- RC- discharging
- Capacitors in parallel
- Capacitors in series
- Charge across series capacitors
- Voltage across series capacitors

RC AND RL CIRCUITS

- RC circuits – charging
- RL circuits

ELECTRICAL PHASE

- Single phase waveform
- Period & Frequency
- Peak-peak value
- Root mean square value
- Vectors in the Cartesian plane

CONVERSIONS

- Vector to polar conversion
- Addition, subtraction, multiplication & division graphically with exercise
- Conversions

CAPACITIVE & INDUCTIVE REACTANCE

- Phasors
- Reactance
- Impedance
- Reactance calculation
- Inductive reactance

COMPLEX INDUCTANCE

- RC and RL series
- Exercises
- RLC circuit in series with example
- RL in parallel and Examples
- RC in parallel and Examples
- LC in parallel and Examples

POWER FACTOR ANALYSIS

- Ohm's law in AC
- Real power
- Reactive power
- Apparent power
- Power components
- Power factors & improvements
- Power factor corrections with example

POLYPHASE SYSTEMS

- Polyphase systems – Introduction
- 3 phase
- Three phase AC power
- Three phase circuits
- Y – connection
- Line & phase currents in a y connection
- Voltages in Y system
- Delta connections
- Three-phase power and examples

EXAMPLES - POLYPHASE SYSTEMS

- Examples & solution for polyphase systems

3-PHASE VOLTAGES & PHASORS - Y SYSTEM

- Power system loads
- Balance three-phase voltages
- Three-phase voltage source
- Phasor – Y system
- Line to line & line to voltage – Y system
- Line to line and line to neutral voltages – Y system

PHASOR - DELTA SYSTEM

- Phasor - Delta system
- Line & phase currents - Delta system
- Examples

BALANCED 3-PHASE LOADS

- Y – Y system
- Delta – delta system
- Delta – Y system
- Balanced 3-phase circuits
- Y – delta transformation
- Delta – Y transformation

UNBALANCED LOADS

- Power in balanced Y load
- Power in balanced delta load
- Unbalanced loads
- Unbalanced 3-phase system
- Examples for Unbalanced loads

ELECTRICAL POWER SYSTEMS

- Electric current
- Electric charge
- Pressure and Voltage
- A simple circuit
- Charge in a circuit

RESISTORS, INDUCTORS AND CAPACITORS

- Electric current
- Resistance
- Resistors in series and parallel
- Inductors
- Inductive reactance
- Inductors in series and parallel
- Capacitance
- Capacitors in series and parallel
- RLC circuit in series and parallel

ELECTRICITY

- Static electricity
- Lightning
- Direct current vs. alternating current
- attery
- Battery
- Electrical phase
- Single-phase waveform
- Period
- Frequency
- Peak value
- Average value
- Root mean square value

POWER FACTORS

- Three-phase power
- Electric power
- Energy vs. power
- Power components
- Power factor & Power factor correction (PFC)
- PFC techniques

ENERGY AND POWER GENERATION

- Energy
- Types of power
- Energy conservation
- Turbine
- Electrical generators

POWER PLANTS

- Power plant
- Fuel –fired power plant
- Thermal power station
- Coal fired power plant
- Gas-fired power plant
- Hydro-electric power plant
- Pumped storage plant
- Nuclear power plant

RENEWABLE ENERGY

- Solar farm
- Photovoltaic cells
- Wind farm
- Biomass
- Geothermal energy
- Power station overview
- Location of power plant
- Impacts on environment

POWER TRANSMISSION AND DISTRIBUTION

- Power transmission
- Transmission towers
- Electrical distribution overview
- Power distribution
- Cable type distribution
- Distribution components
- Utilization
- Power demand
- Tariff

ELECTRICAL ENERGY

- Electrical heating
- Resistance heating
- Resistance welding
- Industrial resistance heaters
- Electric arc
- Furnace
- Electric arc furnace (EAF)
- High frequency induction heating
- Induction furnace
- Dielectric heating

LIGHT ENERGY

- Electric lightning principles
- Photometric parameters
- Incandescent lamps
- Low presser gas discharge lamp
- Sodium vapor lamp
- Metal halide lamp
- High pressure gas discharge lamp
- Lighting design
- Efficiency in lighting systems
- Characteristics Of Various Lamps

MOTORS & POWER ELECTRONICS

- AC motor control
- Operating characteristics – AC motor
- DC motor
- Limitation of DC motor
- Commutator of DC machine
- Types of DC motor
- Power electronics
- Power electronics components
- Electrical safety & its measures
- Power quality
- Factors affecting power quality
- Power quality problems

CONDUCTORS, SEMICONDUCTORS & INSULATORS

- Electrical conductivity
- Energy band structures
- Conductors
- Super conductors
- Semi-conductors
- Intrinsic semiconductors
- Extrinsic semiconductors
- Insulators

ELECTRO MAGNETISM

- Introduction
- Types of magnets
- Bar magnets
- Electromagnetism
- Electromagnetic induction
- Faraday's law
- Applications