The paper presents an original integrated MAC and routing scheme for wireless sensor networks. Our design objective is to elect the next hop for data forwarding by jointly minimizing the amount of signaling to complete a contention and maximizing the probability of electing the best candidate node. Towards this aim, we represent the suitability of a node to be the relay by means of locally calculated and generic cost metrics. Based on these costs, we analytically model the access selection problem through dynamic programming techniques, which w ....etc

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Abstract”
In this letter, we analyze a class of Opportunistic Power Allocation (OPA) and sensor selection schemes for parameter estimation in wireless sensor networks. In all cases, only sensors experiencing favorable conditions participate in the estimation process by adjusting their transmit power on the basis of local Channel State Information (CSI) and Residual Energy Information. We address a number of classical problems: the minimization of distortion and transmit power, or the enhancement of network lifetime. Furthermore, we deri ....etc

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two 33 mw alternator is running in synchronous mode with grid also.what will be justifiied that close both NGR in running condition or any one ?plese answer in detail ....etc

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Abstract

In the literature, voting protocols are considered secure if they satisfy requirements such as privacy, accuracy, robustness, etc. It can be time consuming to evaluate a voting protocol with respect to all these requirements and it is not clear that the list of known requirements is complete. Perhaps because of this many papers on electronic voting do As a solution to this, we suggest evaluating voting schemes in the universal com- posability framework. We investigate the popular class of voting schemes based on homomorphic thresh ....etc

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Pilot Relaying Schemes
NAME REGD NO BRANCH
Introduction
Pilot relaying schemes employ a communication channel in conjunction with protective relays to detect a fault in the transmission lines.
High speed determination of fault locations.
There are basically two types of pilot relaying schemes.
1. Blocking pilot protective scheme
2. Tripping pilot scheme
Types of channels
There are basically 3 types of channels used in pilot relaying.
1. Wire pilot- Twisted pair of copper wires used in Telephone cables.
....etc

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request for abstract and seminar report on generator protection ....etc

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Presented by
KALOLIA ALAP R


What are Relays?
 Relays are electrical switches that open or close another circuit under certain conditions.
 Relay Purpose
 Relay Types
Electromagnetic Relays (EMRs)
 EMRs consist of an input coil that's wound to accept a particular voltage signal, plus a set of one or more contacts that rely on an armature (or lever) activated by the energized coil to open or close an electrical circuit.
 Solid-state Relays (SSRs)
 SSRs use semiconductor output ....etc

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Abstract”
A major disadvantage of applying sliding mode control to dc/dc converters is that the steady-state switching frequency is affected by line and load variations. This is undesirable as it complicates the design of the input and output filters. To reduce switching frequency deviation in the events of line and load variations, an adaptive feedforward control scheme that varies the hysteresis band according to the change of line input voltage and an adaptive feedback control scheme that varies the control parameter (i.e., sliding c ....etc

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Pilot Relaying Schemes

¢ Pilot relaying schemes employ a communication channel in conjunction with protective relays to detect a fault in the transmission lines.

¢ High speed determination of fault locations.

¢ There are basically two types of pilot relaying schemes.

1. Blocking pilot protective scheme

2. Tripping pilot scheme

Types of channels

There are basically 3 types of channels used in pilot relaying.

1. Wire pilot- Twisted pair of copper wires used in Telephone cables.

2. Carrier current pilot- The pi ....etc

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Generator Protection Schemes
The following are the main projects related with protection schemes adopted generator. ,, briefs about each has been depicted below
1. Generator Differential Protection
2. Generator & Transformer Differential Protection
3. Loss of Field or Loss of Excitation Protection
4. Negative Sequence or Current Unbalance Protection
5. Over Fluxing or Over Excitation Protection
6. Over Current Protection
7. Stator Earth Fault Protection
8. Rotor Earth Fault Protection (64R)
9. Restricted Earth Fault Protection ....etc

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