Neutral Grounding and Methods of Neutral Grounding in Power System
Why Neutral Grounding required in Power system? The neutral grounding is an important aspect of power system design because the […]
Electrical Substation, Basic Electrical
Electrical Substation
Voltage control and Method of Voltage control in Power system
Why Voltage control need in Power system? A power system is said to be well designed if it gives a
Case Studies
Zero IR value of CT at Substation
Case study At 220/66kV substation, for 220/66 KV 100MVA Transformer, it was found with oil leakage from the Tan-delta point
Case Studies
Conductor damaged due to use of PG Clamp
Case Study During Line Patrolling it was observed with damage of Main conductor strands of the 132KV Line conductor. Detail
Case Studies
Red-HOT on CT Pad Clamp in Electrical substation
Case study At one of 66/11 KV Grid Sub-Station, it was observed with burning of CT clamp causing red-hot at
Transformer
Inrush Current in Transformer
What is Inrush current in Transformer? When a transformer is taken off-line, there will be a certain amount of residual
Transmission Line
Vibration Damper in Transmission Line conductor
Vibration in Transmission Line conductor The overhead transmission lines experience vibrations in the vertical plane and are of two types.
Transmission Line
What is Bundled Conductor
What is Bundled Conductor? For voltages in excess of 230 kV, it is in fact not possible to use a
Transmission Line
What is Skin effect and Proximity effect
What is Skin effect? When direct current flows in the conductor, the current is uniformly distributed across the section of
Electrical Machine
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 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