Overcurrent Protection of Conductor and Machine
Overcurrent Protection of Conductor Continued over currents increase the resistance heating (I2R) of conductors and can decrease cable insulation life […]
Electrical Machine
Electrical Substation
Profile of an Electrical Engineer in an Electrical Substation in the US
Introduction Electrical Engineers specializing in substations play a critical role in the power distribution and transmission industry in the United
Electrical Appliance
Ground Fault Circuit Interrupters (GFCI)
What is Ground Fault Circuit Interrupters (GFCI)? A ground-fault circuit interrupter (GFCI or GFI) is a device that can be
Electrical Substation
Location of Capacitors for Power Factor Improvement
Introduction The successful operation of a power factor correction depends largely on the correct positioning of the capacitors in the
Electrical Appliance
Top 5 Best Air Conditioner Brands in America
Stay cool and comfortable with the best air conditioner brands in America! After thorough research, we’ve ranked the top 5 best
Transformer
What Is Earthing Transformer and their connection diagram
A zigzag (earthing) transformer is a special purpose transformer. It has primary windings but no secondary winding. Earthing transformers are
Transformer
What is Core balance current transformer (CBCT)
Working Principle of Core balance current transformer (CBCT) The core balance method is based on primary current phasor addition or
Electrical Substation
Impacts of renewable energy sources on protection Relay coordination
Introduction Most Distributed Generators (DGs) are defined as renewable energy, green energy sources and are gradually being utilized to provide
Electrical Appliance
Washing Machine troubleshooting
Washing Machine troubleshooting Washing machine problems are of various types. However, there are certain common washing machine problems which many
Electrical Appliance
Vacuum Cleaner Troubleshooting
Vacuum Cleaner Troubleshooting When a vacuum cleaner fails to clear the dirt effectively, we think of replacing it with a
Electrical Appliance
Mixer Troubleshooting
Mixer Troubleshooting Function of Mixer Mixer and Grinder is a kitchen appliances that facilitates task related with mixing and crushing
Electrical Appliance
Function of Coffee Maker
What is Coffee Maker? A coffee maker is a small heating appliance designed for brewing coffee from ground coffee beans
Electrical Machine
Trouble Shooting chart of D.C. Machines
Trouble Shooting chart of D.C. Machines Common defects in commutators A good commutator will have a smooth polished surface dark
Electrical Machine
Centrifugal Pump troubleshooting
Centrifugal Pump troubleshooting (1) Failure to start : Gland packing may be too tight. Check whether spindle is freely rotating.
Electrical Machine
Maintenance schedule of Electrical Machines in Industries
Types of Maintenance Breakdown maintenance Breakdown maintenance is basically the “run it till it breaks” type of maintenance mode. No
Electrical Appliance
Electrical Circuit of Refrigerator and Common fault
Electrical Circuit of Refrigerator Function of parts Lamp and Switch The lamp and switch components function in the refrigerator to
Basic Electrical
Hysteresis loop for ferromagnetic material
Magnetic Hysteresis Loop The Magnetic Hysteresis loop above shows the behavior of a ferromagnetic core graphically as the relationship between
Transformer
Transformer Turns Ratio Test (TTR)
What is Transformer Turns Ratio Test? The turns ratio test is an AC low voltage test which determines the ratio
Electrical Substation
GIS Substation Maintenance and Verification schedule
Maintenance schedule of GIS substation Generally GIS requires no or very little maintenance and monitoring the SF6 gas pressure and
Trending
What is Smart Meter and their Block diagram
Define Smart Meter A smart meter is an electronic device that records consumption of electric energy and communicates the information
Trending
Micro Grid: Need, Component, Operation and difference
Define Micro Grid A micro grid is a small-scale power grid that can operate independently or collaboratively with other small
Basic Electrical
What are the general rules for residential wiring work
General Rules for residential wiring All electrics supply lines and apparatus shall be of sufficient in mechanical strength and size
Transformer
Transformer Oil Testing
Regular sampling and testing of insulation oil taken from the transformer is a valuable technique in the preventative maintenance program.
Renewable Energy
Solar PV plant Monitor and performance issues
Solar PV monitor Monitoring is very common with Solar PV systems. Often residential monitoring consists of a device that measures
Basic Electrical
Define Volts and Power and Calculation formula
Volts Current x Resistance = Volts I x R = V Voltage is equal to current multiplied by resistance. This
Basic Electrical
Define Short circuit and when does electric short circuit occurs
Define short circuit A short circuit is an abnormal connection of very low impedance between two points of different potential,
Trending
Solid State Transformer (SST)
What is Solid State Transformer? Solid state transformer has been put as one of the emerging technologies in power electronics.
Transmission Line
How to locate Cable fault
Cable fault locate technique Without cable fault indicators the utility must rely on more manual techniques for finding the location
Electrical Appliance
Nickel Cadmium (NiCd) Battery: Application, Advantages and Disadvantages
What is Nickel–Cadmium (NiCd) Battery? The nickel cadmium battery (Ni–Cd battery) (commonly abbreviated NiCd or NiCad) is a type of
Electrical Appliance
What is Nickel iron battery
What is Nickel iron battery ? The nickel–iron battery (NiFe battery) is a storage battery having a nickel(III) oxide-hydroxide cathode