Osama Abdel Aziz – Power Transformer Protection

Description

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Osama Abdel Aziz – Power Transformer Protection
Power Transformer Protection

Differential Protection
What you’ll learn

– importance of transformer in power system
– Transformer protection
– Basic Definition of differential relay
– Test Siemens differential relay 7UT 613
– Calculation For Transformer Differential Protection
– how u can do differential test automatic by using advance module of omicron
– how u can do differential test manually by using omicron
– Test Other Differential Relay ( RET 670 & MICOM P643)
Prepare test procedure and test sheet.

Course content

5 sections    •  10 lectures
Introduction   3 lectures 

Course overview
Introduction
Power transformer protection
interview question

What are the protections that are on the power transformer    2 questions
Differential Relay characteristic   1 lecture 

Calculation For Transformer Differential Protection
interview question

calculation of power transformer    2 questions
Differential Relay Test   2 lectures 

test Siemens differential relay
test Differential relay by using advanced test module
interview question

OMICRON ADVANCED DIFFERENTIAL TEST MODULE    2 questions
Differential Relay Test manually and How Write Correct Report   3 lectures 
Pickup Test
stability test & slope test
Harmonic Restrain Test & over flux or over excitation Test & over current test
interview question

pickup slope stability over current over excitation    4 questions
(RET 670 & MICOM P643 ) slope characteristic and how solve equation   1 lecture 

RET 670 & MICOM P643
Requirements

Know the basic concepts of power transformers

Description

Hi,
The relays used in power system protection are of different types. Among them, differential relay is a very commonly used relay for protecting transformers and generators from localized faults.
The differential relay is one that operates when there is a difference between two or more similar electrical quantities exceeds a predetermined value. In the differential relay scheme circuit, there are two currents come from two parts of an electrical power circuit. These two currents meet at a junction point where a relay coil is connected. According to Kirchhoff Current Law, the resultant current flowing through the relay coil is nothing but the summation of two currents, coming from two different parts of the electrical power circuit. If the polarity and amplitude of both the currents are so adjusted that the phasor sum of these two currents, is zero at normal operating condition. Thereby there will be no current flowing through the relay coil at normal operating conditions. But due to any abnormality in the power circuit, if this balance is broken, that means the phasor sum of these two currents no longer remains zero and there will be non-zero current flowing through the relay coil thereby relay being operated.
I have covered the following topics in this course
– Transformer protection
– Basic Definition of differential relay
– Test Siemens differential relay 7UT 613
– Calculation For Transformer Differential Protection
– Prepare test procedure and test sheet.
– how u can do differential test automatic by using advance module of omicron
– how u can do differential test manually by using omicron
– Test Other Differential Relay ( RET 670 & MICOM P643)
Who this course is for:

Engineers are still studying
fresh graduated engineers
Engineers working in the field of tests protection relays

Instructor

Osama Abdel Aziz

Bachelor of Electrical engineering (power & machines).

Hello,
I’m Osama Abdel Aziz
Electrical Power Systems Engineer
I Have
Bachelor of  Degree in Electrical Power and Machines Engineering
i am work naw as protection enginner in EETC  company
I share with you my academic and practical experience
I I find a real joy in teaching :).
Choosing an interesting and challenging field such as electrical engineering is a blessing and a gift I’m grateful For
Excellent knowledge and delivering the theory and practical concept with such an ease.
Trainer possesses strong competency in power plant and substation secondary system, scheme like busbar protection, breaker failure protection, substation automation, transformer differential, substation schemes lines/transformer/reactor/busbar, testing & commissioning of relays, scheme testing, testing of GIS/AIS substation equipment, testing of generator protection, on site trainings.