Smart Grid Technologies: Communication Technologies and Standards
Smart Grid History
As soon as electrical distribution grids came into being the need for metering arose. The initial devices were used for metering consumption, however modern smart grid technology uses two way metering and can switch appliances on or off according to demand and off peak tariffs. Over the last one hundred years many obstacles to smart grid technology have been overcome.
The earliest attempt at smart grid was Edison’s 1882 pearl street system that using an electromagnet opened and closed circuits to indicate by different colored bulbs high and low voltage. These different bulbs alerted the operator to control output of the generators to match the load. Consumption…
Vibration Analysis of a Centrifugal Pump
A.Naveen Varma1, K. Bala Bhaskar1, B. Sai Kumar1, G.Giridhar1, Vamsi Raja2, P.Phani Prasanthi3
1Department of Mechanical Engineering, P.V.S.I.T. Kanuru (A.P), India-520007
2Associate Manager, Kirloskar Brothers Limited, Pune, India.
3Department of Mechanical Engineering, P.V.S.I.T. Kanuru (A.P), India-520007.
Centrifugal pumps are among the more versatile and widely used products of rotating mechanical…
I am highly grateful to the Director General,Roorkee College of Engineering, Roorkee, for providing me the opportunity to carry out my research.
I would like to thank wholeheartedly Director,Roorkee College of Engineering, Roorkee for encouragement, solicited advice and all kind of help extended to me during the completion of this work.
I express my deep sense of gratitude to my Research Supervisor MR. SANDEEP KUMAR SINGLA for his expert guidance, stimulating discussions as…
societal breakdown. For this reason, power system defense and protection is paramount (López, Setola, & Wolthusen, 2012, p. 202-204).
Eliminating the threat of cyber-attack is unfortunately not feasible as the threat continually evolves. Often a system is considered “air tight” until its proven otherwise. Still, there are methods that can bolster security making unauthorized access to systems extremely difficult thereby reducing the probability of successful outside attempts. One specific…
consumption and future demand of MHP during this study are analysis carried out using GDP and HH and population growth rate.
The summary of main findings, based on the analysis undertaken in the preceding Chapters 4, is presented in this section followed by sets of key recommendations
5.1. Lelta MHP development to rural community
This research paper studied the role of electricity from Lelta MHP plants, on the daily life habits of HHs, sustainability of MHP and…
made for max number of specified switching operation of wind turbine. 10 minutes and 2 hour periods are specified for the same. Plt is given by following equation
P_lt=C(φ_k ) S_n/S_k ----------------------------------------------------- (4)
where Plt is long term flicker emission, C(ϕk) is flicker coefficient calculated by Raleigh distribution of wind speed depending on grid impedance angle and average wind velocity, Sn is apparent power of wind turbine and Sk is short circuit power of grid at…
It is noted the amount of energy consumed by this form of transportation is more than the normal household can use. Therefore this requires that the existing power grid is needed to upgrade most of the facilities in the in the grid. This includes the generation, the transmission network, and the distribution systems. This, therefore, requires that massive investment be put in place to provide the required amount of power to the transportation system. Nevertheless, the power grid system may…
2.5PRODUCTS AND SERVICES PROFILE
The products and services of L&T’s Electrical & Automation are:
Larsen & Toubro offers a wide range of Protection, Control & Monitoring Relays. These are Numerical relays suitable for Low Voltage & Medium Voltage power distribution system. These are manufactured at L&T’s Mysore Works equipped with modern infrastructure and employing latest testing equipment.
Larsen & Toubro Limited is among the major manufacturers of low voltage…
Experimental Analysis Double Pipe Heat Exchanger with Twisted Tape Inserts
In partial fulfilment of requirement
For the award of degree of
Master of Technology
Under the Guidance of
Smt. V. Sireesha
Department of Mechanical Engineering
GAYATRI VIDYA PARISHAD COLLEGE OF ENGINEERING (AUTONOMOUS)
(Affiliated to J.N.T. University, Kakinada)
VISHAKHAPATNAM - 53004
This is to…
the hose, we would need to turn up the water pressure at the hydrant. The same is true with electricity. Materials with low resistance let electricity flow easily. Materials with higher resistance require more voltage (EMF) to make the electricity flow.
The scientific definition of one ohm is the amount of electrical resistance that exists in an electrical circuit when one amp of current is flowing with one volt being applied to the…