Switchgear Power System - Zw

7/23/2019 Switchgear Power System - Zw

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1If you are interested in attending, contact Daud [email protected]

or call +603 2630 6100

Switchgear and

Power SystemProtection

13-17 July 2015 | Harare, Zimbabwe




or call +603 2630 6100

CONTENTS

Course Overview

About the Course Facilitator

Switchgear Day 1

Switchgear Day 2Power System Protection Day 1

Power System Protection Day 2

Power System Protection Day 3

3

5

6

78

10

12




or call +603 2630 6100

Course Overview

Protecting assets to minimize electrical disruption is vital in every business’ daily operations.

The protection of switchgears (and circuit breakers) and power system is an integral part of

ensuring quality electrical distribution and performance. Without planned protection, “faults”

are bound to occur more frequently and may cause serious damages to the business. In

most cases, these faults will result in disruption of normal functioning of a system, which will

cause high stress-levels to the electrical conductors and connected equipment thermally

and electro-dynamically.

The solution to electrical disruption and faults is to create a right protection system for

switchgear and the power system. With efficient protection, faults may be detected

in advance to mitigate risks and reduction in downtime. In addition to creating a well-

rounded protection plan and maintenance strategies for switchgears and power systems,

this intensive 5-day programme zooms in to the installation, testing and commissioning of

switchgears to allow participants to take away practical solutions to overcome their day-to-

day challenges in operations and maintenance of equipment.

Benefits of Attending• Learn to identify and select the appropriate types of switchgears and transformers for

maximum efficiency

• Appreciate the design principles and operational elements of switchgears and power

systems

• Detail the practical maintenance strategies for switchgear and power systems

• Master the setup of switchgear and power system protection schemes and testing

procedures

• Manage faults and breakdowns effectively to minimize disruption

• Assessing real-li fe case studies, types of power system faults and learning from past

experiences in electrical and equipment failures

• Selecting types of protection in power system by assessing a variety of methods and adopting

them in the right setup

Why You Should Not Miss This Event As the installation of high voltage distribution and transmission equipment increases due to

the ever-growing global demand for power, there is increasing need to ensure the reliability

of the operations of power systems. Power transformers are among the most important

and most expensive components of power systems. Their failure can impose extraordinarily

high costs on plants, factories and utilities of all descriptions. It is critical that all personnel

operating and working with such equipment have a sound knowledge of their operational

requirements and maintenance.

This intensive program focuses on the essential components of power systems; which arethe transformers and switchgears, and provides deeper understanding of what is involved

in the maintenance and asset management of these components. This is to ensure that the

power systems are in tip-top condition and to prevent unexpected interruption.




or call +603 2630 6100

Who Should Attend• Project engineers

• Electrical engineers

• System operators

• Design engineers (junior & senior)• Project managers

• Asset management engineers

• Planning engineers

• Transformer & switchgear maintenance staff

• Protection, instrumentation and control engineers

• Draftspersons in substation design sector

Also suitable for Relevant personnel in power uti lit ies, power generation, transmission

companies, and consultant companies responsible for engineering, commissioning,

operation and maintenance of substations.

Workshop Methodology

Highly interactive program with associated role plays, videos and case studies using an

experiential learning training approach.

Pre-Course QuestionnaireIn order for this workshop to fully benefit

you, a pre-course questionnaire will be sent

to you in order to test the area where your

training needs lies. The results from this

questionnaire will ensure that this entire

workshop will be delivered at a level that is

catering to your needs.

Save up to 50% forIn-house Programmes




or call +603 2630 6100

About the Course Facilitator

Behrouz Ghorbanian BSc, MSc, MIEAust

Behrouz has completed degree courses in

telecommunications and electrical engineering overseas.

He also completed his studies in electrical Utility

engineering at Curtin University in 2004.

Behrouz started his career in the oil and gas industry where his role got him involved

in the maintenance and repair of electronic and navigational marine equipment (VHF andSSB radios, Sat Nav, engine control panels etc). He then moved to the power industry

and was involved in the design, installation, and commissioning of substations mainly for

consultancies and utilities. He has also established a good reputation in teaching power

system protection over his long term services lecturing at Curtin University, and also over

the period he worked as a Protection Engineer in New Zealand.

Over the past years, Behrouz has been involved in many major projects across Australia

(Port Hedland, Barrow Island, Tamar Valley, Karratha, and Newman for example). His most

recent experience is related to cost estimation and risk assessment of major substation

projects with a special focus on the secondary systems (Protection, COMMS, SCADA).

He has also worked as an Engineering Manager and Senior Project Engineer on major

copper mine projects overseas. Behrouz has also gained good knowledge in substation

design, HV cables sizing and installation, transmission system design, earthing system

design and applications, and power system protection design and applications.




or call +603 2630 6100

Monday, 13 July 2015

Day 1

Module 1

Switchgear Fundamentals• Single line diagram (SLD)

• System configurations (LV, MV, HV)

• Switchgear components

• Bulk oil circuit breakers

• Minimum oil circuit breakers

• Air blast circuit breakers

• Vacuum circuit breakers

• SF6 circuit breakers

• Fuse switches

• HV fuses

• Auto reclosers

Module 2

Switchgear specifications• Full load rated current

• Fault capacity (symmetrical & asymmetrical short circuit withstand capability)

• Make & break operations

• Impulse withstand voltage

• Switchgear auxiliaries (CT’s, VT’s, protection relays)

• Switchgear cable terminations

• Indoor & outdoor switchgears

Module 3

Switchgear diagnostics & maintenance• Asset register

• Condition based maintenance (CBM)

• Reliability Centred maintenance (RCM)

• Switchgear defects

• Switchgear inspection

• Oil testing

• Maintenance of circuit breakers

End of Day 1




or call +603 2630 6100

Tuesday, 14 July 2015

Day 2

Module 4

Switchgear installation, testing and commissioning• Switchgear inspection

• Switchgear installation

• Switchgear type test

• Switchgear routine test

• Switchgear acceptance test

• Switchgear pre-commissioning test

• Switchgear and cable condition monitoring

• Cable HVDC test

• Cable low frequency test

• Partial discharge (PD) test

• Dielectric dissipation factor measurement

• Micro destructive and non-destructive tests

Module 5

Switchgear protection & control• Types of faults

• Earthing systems

• Switchgear fuse protection

• Current transformer (CT)

• Voltage transformer (CT)

• Relay technology

• Overcurrent protection

• Earth fault protection

• Transformer differential protection

• Busbar frame leakage protection

• Busbar high impedance protection

• Voltage control schemes

End of Day 2




or call +603 2630 6100

Wednesday, 15 July 2015

Day 1

Module 1

Switchgear installation,testing and commissioning• Electrical power system

• What is an electric fault?

• Need for protection

• Protection objectives

• A simple protect ion scheme

• Overload

• Types of faults

v Symmetrical faults

v Asymmetr ical faults v Solid faults

v Incipient faults

v Passive faults

v Transient faults

v Permanent faults

• Insulation materials

• Types of faults

v Temperature rise

v Mechanical stress

v System instability

v Electric arc

v Earth potential rise (EPR)

v Induced voltages

• Protection methods

v Relay protection

v Fuse protection

v Circuit breaker protection

• Basic tripping circuit

• Fault calculations

• Sequence networks

v

Positive phase sequence v Negative phase sequence (NPS)

v Zero phase sequence

• Effect of system earthing & winding

connections on zero sequence

• Fault calculation procedure

v Symmetrical faults

v Asymmetrical fau lts

• Per Unit (PU) system

Module 2

Relay protection,testing and commissioning• Relay protection components

• Circuit breaker operation

• Circuit breaker tripping time

• CB auxiliary contacts & coils

• Trip circuit supervision (TCS)

• Moulded case circuit breaker (MCCB)

• Current limiting MCCB

• Protection zone

• Protection overlap• Protection system criteria

v Reliability

v Speed

v Selectivity

v Discrimination (= coordination,

grading)

v Stability

v Selectivity

v Local backup

v Remote backupInsulation materials

• Reach of a relay

• Main & backup protection

• 3-phase vs. 1-phase

• Radial distribution feeders

• Parallel distribution feeders

• Radial distribution feeders

• Ring main system

• Protection schemes

• Relay technology

v Electromechanical

(= electromagnetic) relay v Static (= electronic) relay

v Numerical (= digital) relay

• Basic tripping circuit

• Circuit breaker types

• Oil CB

• Air blast CB

• Vacuum CB

• SF6 CB

• Automatic reclosing

• External reclosser

POWER SYSTEMPROTECTION




or call +603 2630 6100

Wednesday, 15 July 2015

Day 1

Module 3

Fuse protection,testing and commissioning• Fuse link

• Fuse protection applications

• Fuse link characteristics

• Fuse rated current

• Minimum fusing current

• Rated current vs. min fusing current

• Pre-arcing time

• Arcing time

• Total operating time• Rupturing capacity

• Fusing factor

• Prospective current

• Cut-off current

• Prospective current vs. cut-off current

• Fuse cut-off characteristic

• Fuse TCC curve

• Fuse protection - pro’s & con’s

• Fuse selection

• Fuse short circuit protection

• Fuse overload protection

• Selection of HV fuses

• Fuse speed ratio

• Transformer fusing ratio

• Transformer fuse protect ion

• Cut-out fuse

v ‘K’ type

v ‘T’ type

v Minimum melting time

v Maximum total clearing time

• Powder filed (= HRC, drop-out) fuse• Current limiting fuse

• Cut-off characteristic curve

• Fuse-fuse coordination

v Method 1

v Method 2

v Example

• Fuse recloser coordination

v Fuse saving method

v Fuse burden method

v Example

Module 4

Feeder protection,testing and commissioning• Feeder protection features

• Protection IEC codes

• Protection variables

• Overcurrent protection

• Earth fault protection

• O/C & E/F combined

• E/F protection techniques

v Balanced earth fault

v Neutral earth fault v Restricted earth fault (REF)

• O/C pickup setting

• E/F pickup setting

• Typical O/C & E/F setting ranges

• Sensitive earth fault (SEF)

• High-set instantaneous O/C protection

• Transient overreach

• O/C protection summary

• E/F protection summary

• Automatic reclosing features

• Discrimination

v Current discrimination

v Time discriminat ion

v Current & time discrimination

(IDMT)

• IDMT TCC curves

• IDMT equations

• IDMT operating time

• Definite time (DT) relay

• Relay coordination

• Sensitivity check • Protection system criteria

v Speed

v Sensitivity

v Stability

v Simplicity

v Selectivity

v Reliability

• Transmission vs. distribution


End of Day 1




or call +603 2630 6100

Thursday, 16 July 2015

Day 2

Module 5

Earthing systems,instrument transformers,• Three-phase windings

v Star winding connections

v Delta winding connections

v Zigzag winding connections

• Ungrounded systems

• Solidly earthed systems

• Resistance earthed systems

• Reactance earthed systems

• Impedance earthed systems• Neutral earthing compensator (NEC)

• Instrument transformers

• Current transformer (CT)

• Residual currentFusing factor

• CT specifications

v Rated primary current

v Rated secondary current

v CT ratio (CTR)

v Accuracy l imit factor (ALF)

v CT burden

v Knee point voltage

v CT accuracy class

• CT equivalent circuit

• CT knee point

• CTR and ALF

• CT error

• CT burden

• CT polarity

• Open circuiting CT’s on load

• CT accuracy class ‘P’

• CT accuracy class ‘X’• Metering CT

• Protection CT

• Interposing CT

• Single-phase parallel CT’summation CT

• Combined CT/VT

• Voltage t ransformer (VT)

• Residual voltage

• Neutral displacement voltage

• VT error

• VT accuracy class – metering vs.

protection• VT fuse protection

• Capacitive voltage transformer (CVT)

• Factors affecting O/C pickup setting

Module 6

Transformer protection,testing and commissioning• Transformer protection

• Transformer protection features

• SEL387 – Diff & O/C protection

• Unit protection

v Balanced earth fault

v Neutral earth fault

• O/C protection vs. unit protection

• Differential protection

v Balanced circulating current system v Opposed voltage system

• Restricted earth fault (REF) protection

• E/F & REF protection combined

• High-set instantaneous O/C protection

• Transient overreach

• O/C protection summary

• E/F protection summary

• Transformer O/C & E/F protection

• Transformer O/C IDMT & instantaneous

protection combined

• Transformer unrestr icted E/F protection

• REF protection at transformer HV side

• REF protection at transformer LV side

• Zero sequence elimination

• Phase and ratio correction

• Phase correction settings

• Unit protection - interposing CT

• Transformer differential & REF protection

combined

• Transformer overload protection

v Pressure relief v Buchholz relay

• Transformer inrush current

• Small transformer protection scheme

(1MVA and below)

• Medium size transformer protection

scheme (between 1MVA and 5MVA)

• Large transformer protection scheme

(Above 5MVA)

• Fault distribution





or call +603 2630 6100

Thursday, 16 July 2015

Day 2

Module 7

Directional relaysinstrument transformers,

• Need for directional relays

• Radial feeders supplied at two ends

• Parallel feeders

• Parallel feeders with one source

• Parallel feeders with tie-buses

• Ring main system

• Practical example

• Establishing the direction

• Maximum torque angle (MTA)• Selection of RCA

Module 8

Generator protection,testing and commissioning• Generator faults

• Generator protection features

• Generator differential protection

• Effect of CT mismatch

• Effect of strong external faults

• Solution to relay instability

• Stabilising resistor

• Metrosil

• Generator biased differential protection• Generator overall differential protection

• Stator neutral overvoltage protection

• Generator backup protection

• Generator full protection

• Protection of generator transformer


End of Day 2




or call +603 2630 6100

Friday, 17 July 2015

Day 3

Module 9

Busbar protection,tele-protection tele-protection • Busbar protection schemes

• Busbar protection basic requirements

• Frame leakage protection

• Bus zone protection

• Busbar protection – check feature

• Busbar high impedance protection

• Primary operating current

• Protection automation

• Embedded generation protection

requirements

• Intertripping

• Tele-protection

• Communication links

• Direct tripping

• Permissive tripping

• Blocking scheme

• Pilot wire

• Power line carrier (PLC)• Radio link (simplex, half duplex, full

duplex)

• Optical fiber cable

Module 10

Transformer feederprotection, distanceprotection• Transformer feeder protection (scheme 1)

• Transformer feeder protection (scheme 2)





• Distance protection

• Impedance relay

• Mho relay

• Offset Mho relay

• Reactance relay

• Quadrilateral relay

• Reach of distance relay

• Distance relay zones

• Distance relay R/X diagram

• Distance relay operation zone

• Distance relay zone settings

• Protection coordination• Distance protection – advantages

• Distance protection - disadvantages

• Distance protection – directional control

• Distance protection – transfer tripping

• Direct under-reach

• Permissive under-reach

• `Permissive over-reach





or call +603 2630 6100

Friday, 17 July 2015

Day 3

Module 11

Motor protection • Motor operation

• Synchronous speed

• Slip

• Motor equivalent circuit (AC induction

motor)

• Common motor faults

• Motor overload protection

• Motor relay protection

• Motor stalling

• Start/stall protection• Motor protection main features

• Thermal overload protection

• Motor short circuit protection

• Motor undervoltage protection

• Motor out-of-step protection

• Motor protection schemes

Module 12

Smart grid,• Power system automation

• SCADA

• SCADA architecture

• SCADA RTU

• Communication protocols

• Communication media

• Smart grid

• Distributed control system (DCS)

• Automatic voltage control

• Local area network (LAN)• LAN configuration

• Wider area network (WAN)

• Optical fiber

• Microwave

• Router

• MUX & DEMUX

• Substation automation


End of Day 3

Other Relevant Programs by CapSource

• Advanced Lightning Protection

• Power System Fundamentals for Non-electrical Engineers

• Earthing System Design

• Power Quality

• Distribution System Design & Applications• Practical Substation Design

• Generator and Power Station Transformers



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Terms and ConditionCOPYRIGHT - All intellectual property rights in all materials produced or distributed by CapSource in connection with this event is expressly reserved and any unauthorised duplication, publication or

distribution is prohibited. DISCLAIMER - Please note that speakers and topics were confirmed at the time of publishing; however, CapSource may necessitate substitutions, alterations or cancellations of

the speakers or topics. As such,CapSource reserves the right to change or cancel any part of its published programme without penalty due to unforeseen circumstances. Any substitutions or alterations

will be updated on the website as soon as possible.

DATA POLICY - The information the Client provides will be safeguarded by CapSource which may be used to keep the Client informed of relevant products and services through letter, phone, fax, email or

other electronic means. CapSource will not share this information with other parties unless expressly stated.

TAX NOTE - The investment fee does not include any taxes (withholding or otherwise). In case of any applicable taxes, the client has to ensure that the taxes are paid on top of the investment fee paid for

the course. Compliance with the local tax laws is the responsibility of the client. CANCELLATION & SUBSTITUTIONS POLICY

• A replacement participant is always welcomed at no additional charge.

• For cancellations received in writing more than seven (7)days prior to the conference, the participant is entitled to pay full amount (100%) stated on the invoice and it wi ll receive Credit Voucher that can be

used in any of upcoming trainings by Capsoure within one year form the date of issuance.

• For cancellations received in writing seven (7) days or less prior to an event (including day 7), participant is entitled to pay full amount (100%) stated on the invoice with no Credit Voucher issued, howeverthe delegate will still be entitled to a complete set of course documentation.

In the event that CapSource cancels or postpones an event due to circumstances beyond its control, participants’ payments at the date of cancellation or postponement will be credited to a future-scheduled

CapSource event within one year from the date of issuance. Should the event be cancelled due to an act of terrorism, fortuitous events, extreme weather conditions, industrial action, or any reasons beyond

management control, CapSource shall endeavour to reschedule, but the client hereby indemnifies and holds CapSource harmless from and against any and all costs including airfare, hotel and other costs,

damages and expenses, including attorney fees.

Return this signed form to:

DAUDFax : +603 4131 6700

Tel : +603 2630 6100

Email : [email protected]

SWITCHGEAR AND POWER

SYSTEM PROTECTION

(NB-TR-EE1525)

Harare, Zimbabwe

13 - 17 July, 2015

I understand and agree to CapSource terms and conditions

(Signatory must be authorised to sign on behalf of contracting

Organisation)

Name:

Job Title:

Date:

Direct Line:

Switchgear

13 - 14 July 2015

USD2,995

Power System Protection

15 - 17 July 2015

USD 3,995

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Switchgear Power System - Zw

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