4th International Conference On Advances in Computing, Electronics and Electrical Technology

Proceedings of

4th International Conference On Advances in Computing, Electronics and Electrical Technology CEET 2015

Date

27-Dec-2015

Location

Kuala Lumpur , Malaysia

Authors

3

ISBN

978-1-63248-069-9

2 Articles Published

1. 100% STATOR GROUND FAULT PROTECTION OF ALTERNATORS BY LOW FREQUENCY INJECTION AND USING REAL POWER SIGNAL

Authors: S M SALIM REZA

Abstract: n this paper, 100% stator ground fault protection by application of low frequency (20 Hz) injection for 6.6/132 KV alternators have been investigated. Here, different types of faults of alternators and possible protections by conventional means have been discussed. It is shown why conventional method by differential relay protection is not adequate. Modern approach of alternator fault protection is reviewed and effective methods of 100% stator ground fault protection of alternators have been applied. In this work, it is focused protection of alternators based on sub-harmonic injection method using low frequency band pass filter. The design of stator ground fault protection consists of 20 Hz signal generator, band pass filter, 20 Hz current relay and protection system model includes alternator, total capacitance to ground of stator winding, grounding transformer turns ratio, and neutral resistor. PSPICE simulation of the protection scheme is performed and analyzed.

Keywords: Dolomite Powder, Fly ash, Self-Compacting Concrete, Segregation

Pages: 1 - 5 | DOI: 10.15224/978-1-63248-069-9-11

2. EXTENDING NODE BATTERY AVAILABILITY IN UBICOMP WITH LOCATION-AWARE NODE-TO-NODE TRANSMISSION.

Authors: M. KALEEM GALAMALI , NAWAZ MOHAMUDALLY

Abstract: Significant Research is being carried out concerning location-tracking in mobile environment [10- 26]. Several successive stages in this area is expected like devising new functionalities and applications and improving ways of doing existing activities [2]. In this path of research formulation, there can be many questions asked whose answer will depend on components, features and models that are themselves not yet well developed and stabilised. As and when these components are being put forward and hopefully acknowledged by research community, more of these questions can be pulled back and investigated into. One such “far-sighted” question is “By how much can a node’s battery availability be extended with Location-Aware Nodeto- Node transmission in ubicomp?”. To answer to this question, sufficient information should be available as concerns energy consumption/savings achievable in such a ubicomp topography. One such component is supplied in a previous paper [2] whereby modelling of ene

Keywords: Ubicomp-Ubiquitous Computing, CBRConstant Bit Rate, ES-Energy Savings, EC-Energy Consumed, MES-Mean ES, MEC-Mean EC, BAEFBattery Availability Extension Factor, MBAEF-Mean BAEF.

Pages: 6 - 9 | DOI: 10.15224/978-1-63248-069-9-12