Electrical Engineering Guides

Power Systems

Transient Stability in Power System

The ability of a synchronous power system to return to stable condition and maintain its synchronism following a relatively large disturbance arising from very general situations like switching ON and OFF of circuit elements, or clearing of faults, etc. is referred to as the transient stability in p

By Electrical4u 03/22, 2024
Power Systems

Steady State Stability

As an introduction, we need to know about power state stability . It is really the capability of the system to return to its steady state condition after subjected to certain disturbances. We can now consider a synchronous generator to understand the power system stability . The generator is in sync

By Electrical4u 03/22, 2024
Power Systems

Fundamental Frequency And Harmonics: What Are They?

What Are Harmonics? Harmonics are defined as an unwanted higher frequency component that is an integer multiple of the fundamental frequency. Harmonics create a distortion in the fundamental waveform. Harmonics usually have a lower amplitude (volume) than the fundamental frequency. What is Amplitude

By Electrical4u 03/22, 2024
Power Systems

Admittance: What is it? (Formula & Admittance vs Impedance)

What is Admittance? Admittance is defined as a measure of how easily a circuit or device will allow current to flow through it. Admittance is the reciprocal (inverse) of impedance , akin to how conductance and resistance are related. The SI unit of admittance is the siemens (symbol S). To reiterate

By Electrical4u 03/22, 2024
Power Systems

Advantages of Bundled Conductors

What are Bundled Conductors? We can often see the transmission lines where instead of a single conductor per phase multiple conductors per phase are being used. A metallic structure called spacers groups the conductors of a phase. These spaces help to maintain a constant distance between the conduct

By Electrical4u 03/22, 2024
Power Systems

Bundled Conductors Used in Transmission Line

Single stranded conductors are used in transmission system usually up to 220 KV. But it is not possible to use single-stranded conductor for the voltage above 220 KV systems. For very high voltage system, hollow conductor can be used to optimize the flow of current through it. But erection and maint

By Electrical4u 03/22, 2024
Power Systems

Sag in a Transmission Line: What is it? (And How To Calculate it)

What is Sag in a Transmission Line? In a transmission line , sag is defined as the vertical difference in level between points of support (most commonly transmission towers ) and the lowest point of the conductor . The calculation of sag and tension in a transmission line depends on the span of the

By Electrical4u 03/22, 2024
Power Systems

ABCD Parameters of Transmission Line (Theory & Examples)

What are ABCD Parameters? ABCD parameters (also known as chain or transmission line parameters) are generalized circuit constants used to help model transmission lines . More specifically, ABCD parameters are used in the two port network representation of a transmission line. The circuit of such a t

By Electrical4u 03/22, 2024
Power Systems

Performance of Transmission Line

There are three main types of Overhead Transmission Lines: Short transmission line – The line length is up to 60 km and the line voltage is comparatively low less than 20KV. Medium transmission line – The line length is between 60 km to 160 km and the line voltage is between 20kV to 100kV. Long tran

By Electrical4u 03/22, 2024
Power Systems

Ground Clearance of Different Transmission Lines

Indian Electricity Rule 1956, Clause No 77, mentions, the minimum distance between bottom conductor and ground of different overhead transmission lines. As per Indian Electricity Rule 1956, Clause No 77, the minimum distance between bottom conductor and ground of a 400KV transmission line is 8.84 me

By Electrical4u 03/22, 2024
Power Systems

Surge Impedance Loading or SIL

Surge Impedance Loading is a very essential parameter when it comes to the study of power systems as it is used in the prediction of maximum loading capacity of transmission lines . However before understanding SIL , we first need to have an idea of what is Surge Impedance (Z s ). It can be defined

By Electrical4u 03/22, 2024
Power Systems

T Parameters: What Are They? (Examples Problems And How to Convert T Parameters to other Parameters)

What are T Parameters? T parameters are defined as transmission line parameters or ABCD parameters. In a two-port network , port-1 is considered as sending end and port-2 is considered as receiving end. In the network diagram below, port-1 terminMaster ABCD parameters—calculate T-parameters via open

By Electrical4u 03/22, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

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Transient Stability in Power System

Steady State Stability

Fundamental Frequency And Harmonics: What Are They?

Admittance: What is it? (Formula & Admittance vs Impedance)

Advantages of Bundled Conductors

Bundled Conductors Used in Transmission Line

Sag in a Transmission Line: What is it? (And How To Calculate it)

ABCD Parameters of Transmission Line (Theory & Examples)

Performance of Transmission Line

Ground Clearance of Different Transmission Lines

Surge Impedance Loading or SIL

T Parameters: What Are They? (Examples Problems And How to Convert T Parameters to other Parameters)

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