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Title: substation electrical interview question answer pdf
Page Link: substation electrical interview question answer pdf -
Posted By:
Created at: Sunday 26th of June 2016 01:06:24 PM
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Title: TRANSFORMER PROTECTION USING NUMERICAL RELAY full report
Page Link: TRANSFORMER PROTECTION USING NUMERICAL RELAY full report -
Posted By: project report tiger
Created at: Saturday 27th of February 2010 09:25:43 AM
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TRANSFORMER PRO TECTION USING NUMERICAL RELAY
PROJECT REPORT
Submitted by
AMBILY G ASHA V N SHYAMA K
INTRODUCTION
The aim of this project is to analyze and upgrade existing transformer protection system in BPCL Kochi Refinery. Transformers are static devices totally enclosed and generally oil immersed. Therefore, chances of faults occurring on them are very rare. However the consequences of even a rare fault may be very serious unless the transformer is quickly disconnected from the system. This necessitates providing ....etc

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Title: matlab circuit diagram wavelet transform busbar protection
Page Link: matlab circuit diagram wavelet transform busbar protection -
Posted By:
Created at: Thursday 07th of March 2013 02:50:23 PM
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i need matlab circuit diagram for a new wavelet transform based busbar protection ....etc

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Title: APPLICATION OF CURRENT DIFFERENTIAL PROTECTION TO TAPPED TRANSMISSION LINES
Page Link: APPLICATION OF CURRENT DIFFERENTIAL PROTECTION TO TAPPED TRANSMISSION LINES -
Posted By: computer science technology
Created at: Sunday 24th of January 2010 05:45:58 PM
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APPLICATION OF CURRENT DIFFERENTIAL PROTECTION TO TAPPED TRANSMISSION LINES
1. Introduction
Microprocessor-based current differential relays offer superior protection for power transmission lines. The key advantages over distance relays include better sensitivity for high resistance faults, 100% line protection, and better performance in the single-pole-tripping mode, particularly during evolving and cross-country faults. Besides the well-known requirements of high-speed communication and sampling synchronization, a microp ....etc

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Title: BUSBAR PROTECTION
Page Link: BUSBAR PROTECTION -
Posted By: seminar surveyer
Created at: Friday 07th of January 2011 07:46:46 PM
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satish das


CONTENTS

What is a bus bar?
Causes of fault
Suitable protection
Selection of CT ratios
Behaviour of protective CT (saturated CT)
Types of faults
Overcoming the faults
Stability Ratio
Conclusion
References

What is a bus bar?

Bus derived from Latin word
omnibus
(common for all)
Nerve centre of the power system

Causes of fault

Breakdown of insulation because of over voltages
Weakening of insulation because ....etc

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Title: Microprocessor Based Alternator Synchronisation
Page Link: Microprocessor Based Alternator Synchronisation -
Posted By: computer science crazy
Created at: Sunday 21st of September 2008 12:09:02 PM
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Electrical load on power system varies and it never be constant. To economically meet the requirement of variable load and to assure continuous supply the number of generator unit connected to the system bus bar are varied suitably.

The synchronization requires fulfillment of various conditions like
(1) Same phase sequence
(2) Equality of frequency and voltage between incoming machine and bus.

At present the synchronization is done manually by using conventional analog instruments. The ....etc

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Title: microprocessor based system of automatic synchronizer full report
Page Link: microprocessor based system of automatic synchronizer full report -
Posted By: computer science technology
Created at: Friday 22nd of January 2010 09:52:31 AM
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ABSTRACT
The manual method of
synchronization demands a skilled operator and the method is suitable
for no load operation or normal frequency condition. under emergency
condition such as lowering of frequency or synchronizing of large
machines a very fast action is needed, which may not be possible for a
human operator. Thus there is a need of autosynchroniser in a power
station or in an industrial establishment where generator are employed.
This paper describes a m ....etc

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Title: BUSBAR PROTECTION
Page Link: BUSBAR PROTECTION -
Posted By: seminar surveyer
Created at: Friday 07th of January 2011 07:46:46 PM
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satish das


CONTENTS

What is a bus bar?
Causes of fault
Suitable protection
Selection of CT ratios
Behaviour of protective CT (saturated CT)
Types of faults
Overcoming the faults
Stability Ratio
Conclusion
References

What is a bus bar?

Bus derived from Latin word
omnibus
(common for all)
Nerve centre of the power system

Causes of fault

Breakdown of insulation because of over voltages
Weakening of insulation because ....etc

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Title: substation electrical interview question answer pdf
Page Link: substation electrical interview question answer pdf -
Posted By:
Created at: Sunday 26th of June 2016 01:06:24 PM
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please show the substation interview questions ....etc

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Title: SWITCHYARD full report
Page Link: SWITCHYARD full report -
Posted By: seminar class
Created at: Thursday 28th of April 2011 06:14:19 PM
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PRESENTED BY:-
ATUL KUMAR SINHA


WHAT IS a SWITCHYARD ?
Switchyard means collection of electrical equipment where high voltage electricity is switched using of various component.
Electrical switchyards are usually part of a substation where electricity is transformed from one voltage to another for the transmission, distribution.
POWER TRANSMITE FROM POWER STATION TO CUSTOMERS THROUGH SWICHYARD
CIRCUIT BREAKER
A circuit breaker is an automatically-operated electrical switch designed to pro ....etc

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Title: protection of transmission lines using gps full report
Page Link: protection of transmission lines using gps full report -
Posted By: computer science technology
Created at: Thursday 21st of January 2010 02:41:50 PM
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ABSTRACT
This is a new technique for the protection of transmission systems by
using the global positioning system (GPS) and fault generated
transients. In this scheme the relay contains a fault transient
detection system together with a communication unit, which is connected
to the power line through the high voltage coupling capacitors of the
CVT. Relays are installed at each bus bar in a transmission network.
These detect the fault generated high frequency voltage transient
signals and record the time ....etc

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Title: syncronise alternator with infinite bus bar busbar
Page Link: syncronise alternator with infinite bus bar busbar -
Posted By:
Created at: Friday 18th of October 2013 04:41:07 PM
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Respected Sir/ madam
I need the Ppt on the topic Synchronise alternator with infinite bus bar ....etc

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Title: microprocessor based system of automatic synchronizer full report
Page Link: microprocessor based system of automatic synchronizer full report -
Posted By: computer science technology
Created at: Friday 22nd of January 2010 09:52:31 AM
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ABSTRACT
The manual method of
synchronization demands a skilled operator and the method is suitable
for no load operation or normal frequency condition. under emergency
condition such as lowering of frequency or synchronizing of large
machines a very fast action is needed, which may not be possible for a
human operator. Thus there is a need of autosynchroniser in a power
station or in an industrial establishment where generator are employed.
This paper describes a m ....etc

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