Contact Us
Sign In / Sign Up for FREE
Go to advanced search...
Nobody downloaded yet

Investigation of the Transient Behaviour of Earthing Systems Subjected to High Impulse Currents - Dissertation Example

Comments (0) Cite this document
"Investigation of the Transient Behaviour of Earthing Systems Subjected to High Impulse Currents" paper is designed to conduct field experiments and collect the experimental data for rod bed earthing system and the combined grid – roadbed earthing system…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER91.4% of users find it useful

Extract of sample "Investigation of the Transient Behaviour of Earthing Systems Subjected to High Impulse Currents"

Download file to see previous pages The effect of the transient voltages and currents on the earthing systems has a great influence on the performance and evaluation of the substation equipment against lightning overvoltage. While the characteristics of the earthing system under steady-state depends on the electrode design and soil prosperities alone, the characteristics of the earthing system under impulse currents depends on the magnitude and shape of the impulse current. The experimental setup for the impulse tests on earthing systems has been designed with an impulse generator, voltage and current transducers and different types of earthing systems. The impulse tests with impulse voltages ranging from 500 V to 4 kV have been carried out and the impulse resistances have been calculated. The calculated resistances have been compared with the measured resistances and the error is found to be negligible. The simulation of the analytical data has been carried out with the aid of LT SPICE for the 2, 3 and 4-rod bed earthing systems. The simulated waveforms and the experimental waveforms have been compared and it has been proved that they are close to each other. Thus the measured values have been validated by the simulated values.

Most of the practical electrical systems are not perfectly shielded or isolated from other systems and the environment. The systems may be connected externally with each other through communication cables, power supplies and pipes that carry gas or water. Thus any electrical disturbance in the vicinity of the system leads to potential difference and transient energy transfer between the system and the environment. These electrical disturbances may cause damage to the systems and injury to people in that vicinity. To avoid these risks, there has to be a grounding system. A safe and good earthing system is expected to dissipate the excess or unexpected currents into the ground and guarantee the continued operation of the equipment even under fault conditions. ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(Investigation of the Transient Behaviour of Earthing Systems Subjected Dissertation, n.d.)
Investigation of the Transient Behaviour of Earthing Systems Subjected Dissertation.
(Investigation of the Transient Behaviour of Earthing Systems Subjected Dissertation)
Investigation of the Transient Behaviour of Earthing Systems Subjected Dissertation.
“Investigation of the Transient Behaviour of Earthing Systems Subjected Dissertation”.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Investigation of the Transient Behaviour of Earthing Systems Subjected to High Impulse Currents

Great Lakes Dangerous Currents

... currents which pulls people away from the shore. Formation of Dangerous Currents In an effort to mitigate the fatal effects of dangerous waves on holiday makers, research information contained in the work of John and Stephen (2011) enables people to understand the rate at which these currents form on the lakes. In addition, their information extends into establishing the minimum threshold parameters upon which swimmers should be alarmed on possibility of dangerous currents developing. One parameter under consideration is the approximate height of waves coming from the lake. Waves below the height of 2.5 feet are safe. However, any wave greater than 3 feet in height has a high potential of causing dangerous currents. Apart from wave heights...
5 Pages(1250 words)Research Paper

Convection Currents

Whereas the Sun's electromagnetic energy is the energy source for atmospheric convection, asthenospheric convection is fueled by radioactive decay in the earth's core. The convective cells form in the asthenosphere, a region of extremely high pressure at a depth of about 60-200 miles where rocks are deformed and become molten by enormous pressures. In the asthenosphere, the molten material rises in a convection current until it hits the bottom of the upper layer of Earth's interior consisting of the crust and the mantle. Here, it can not rise any farther and begins to move horizontally.

Figure 2 depicts the movement of the convection cells in the asthenosphere. The red areas are the heated molten material rising from t...
2 Pages(500 words)Essay

High-Performance Work Systems

...High Performance Work Systems Enhances the Effectiveness of Organizations High Performance Work Systems (HPWS) combines different HR practices that include staffing, training and development, performance management and other measures that involve strategic human resource management (FAS). HRM benefits from HPWS and also enhances the organization's effectiveness through adaptability to changes and increased productivity and profitability. This is because the key components of HPWS are involvement, training, and incentives (Brown 2006). The first component, involvement, enables the employees to participate more in the organization's decision making. These decisions affect their immediate environment which eventually affects the entire...
3 Pages(750 words)Assignment

High-Performance Works Systems

...High-Performance Works Systems INTRODUCTION As globalization ushers in a more aggressive and boundary less market, companies, organizations find themselves continuously challenge to create their niche in the global market. And it is no easy task. In order to properly respond to the demands of the time, organizations have redefined their relationships not only with their shareholders but also with their stakeholders. And one of the most important and significant change that has happened is the recognition of the integral role that employees play in the whole life of the organization. In light of this, the paper intends to look at the discussion regarding high performance work systems vis-à-vis that of human resource strategy to be able...
5 Pages(1250 words)Essay

Transient Analysis

... 26 may 2009 Lapace Transform Definition of the Laplace Transform: . F(t) is a function of the real variable t and s is a complex variable. F(t) is called the original function and f(s) is the image function. If the integral in above equation converges for a real s = so , i.e, exists, then it converges for all s with Rs > S0 and the image function is a single valued analytic function of s in the half-plane Rs > S0 . Importance of laplace transform: Using laplace transform we can convert a complex differential equations into simple soluble form . In electrical engineering laplace transform is used for analyzing linear time invariant systems . Transient Analysis A system is said to be second order if the higher power of S...
4 Pages(1000 words)Essay


... ID Lecturer Current Event A good enough understanding of the economy is important for the people so that they can make-do with the economic implications and forecasts which are prepared from time to time. This article by Andrew Beattie mentions the 5 different economic concepts which consumers must know in order to have a fair enough idea. The most significant concept is related with scarcity and remains a highly solid fact, even more so than abstraction. The supply and demand is another concept which has remained a much desired entity that shall be achieved within the realms of economics. The market domains are largely run by supply and demand dynamics which have a long lasting role on the economic angles (Beattie, 2012). Similarly...
1 Pages(250 words)Essay

Impulse Control

...IMPULSE CONTROL Impulse control The situation that Joe explains about his fear for spiders cannot be categorized as phobia. There are a number of things that cannot qualify Joe’s condition as phobia. The fact that the condition that was caused by an experience that Joe had when he was still a child and thus carried the fear of the repetition of the same experience as he grew up it does not in any way interfere with his daily life. A phobia is in most cases described as the fear of things that in real sense have very little or no threat or danger to human existence. Fears are defined as an emotional response to actual or expected danger. Phobia does fit in the same definition only that it does with an individual’s quality of life...
4 Pages(1000 words)Coursework

High Performance Work Systems

...High Performance Work System at St. David’s Healthcare High performance work system at St. David’s HealthCare The high- performance work system at St. David’s HealthCare (SDH) is a combination of human resource activities, work structures, and diverse processes increasing the knowledge, skills, commitment, resilience, and the flexibility of the employees. There are fundamental items that support the basic principles of high performance used to support various managerial positions in the corporate world. The items control the high-performance work system and potential benefits emerging from their establishment used to substantiate the corporate fitting all together activities. The items mostly depend on the motivation and the environment...
2 Pages(500 words)Assignment

Systems and Cultural Investigation

...System and Cultural Investigation Volunteer Healthcare Organization Introduction One of the constructs of the organization that operationalizes the concept of a complex adaptive system is the clinical microsystem (Miller, 2012). These are groups of the clinicians and medical staffs that are working together with a common clinical objective to provide better healthcare for the population of the patients. The objective and the setting of the clinics defines the very important component of the microsystem. These may include the clinicians and the supporting staffs, information, and technology and the specific healthcare processes that are required to change the behaviour of the worker so as to provide better care to the patients. This paper...
5 Pages(1250 words)Essay

High Performance Work Systems

... the need of high caliber staff to handle the new imposed technology. Incentives in the forms of appraisals should be announced to encourage the staff members. 5. Transition of the education system and complete implementation of the HPWS plan: This step would involve the transition stage from classroom teaching to the virtual or online teaching systems. 6. Continuous evaluation: Close monitoring and Regular evaluation is the final step of this process. The institutional structures should be reviewed regularly at both the officer and community level to ensure speedy decision-makings to meet the demand of the competitive environments. (Brown, August 2006 p. 9 & Thomas, July 1998, pp. 103:104) The higher education institutions are subject...
8 Pages(2000 words)Research Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Dissertation on topic Investigation of the Transient Behaviour of Earthing Systems Subjected to High Impulse Currents for FREE!

Contact Us