In-Country Training
On
Operation, Maintenance, Protection & Control of 33/11 kV Substation
Project Name: Design, Supply, Installation, Testing & Commissioning of 33/11 kV sub-stations with source end feeder bays.
Contract No: BREB/UREDS/W-01A-001/02/2016-2017
BREB/UREDS/W-01A-002/03/2016-2017
BREB/UREDS/W-01A-004/04/2016-2017
Installation Operation & Maintenance of 33kV & 11kV SwitchgearSheikh Nazmul Islam
In-Country Training On Operation, Maintenance, Protection & Control of 33/11 kV Substation Project Name: Design, Supply, Installation, Testing & Commissioning of 33/11 kV sub-stations with source end feeder bays. Contract No: BREB/UREDS/W-01A-001/02/2016-2017 BREB/UREDS/W-01A-002/03/2016-2017 BREB/UREDS/W-01A-004/04/2016-2017
In-Country Training
On
Operation, Maintenance, Protection & Control of 33/11 kV Substation
Project Name: Design, Supply, Installation, Testing & Commissioning of 33/11 kV sub-stations with source end feeder bays.
Contract No: BREB/UREDS/W-01A-001/02/2016-2017
BREB/UREDS/W-01A-002/03/2016-2017
BREB/UREDS/W-01A-004/04/2016-2017
Installation Operation & Maintenance of 33kV & 11kV SwitchgearSheikh Nazmul Islam
In-Country Training On Operation, Maintenance, Protection & Control of 33/11 kV Substation Project Name: Design, Supply, Installation, Testing & Commissioning of 33/11 kV sub-stations with source end feeder bays. Contract No: BREB/UREDS/W-01A-001/02/2016-2017 BREB/UREDS/W-01A-002/03/2016-2017 BREB/UREDS/W-01A-004/04/2016-2017
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Fire Pump Transfer Switch Application and Design Criteria
This Presentation is about l.v switch gear design, presented during the graduation project final discussion 15/7/2018.
It presented a good summary of switch gear components and types and practicing on AL.HAMOOL W.T.P M.D.B design using SIEMENS SIVACON S8
A power transformer is most costly and essential equipment of an electrical transformer. It is well known fact that power transformers are the heart of the power systems which enable us to establish very large power systems networks. Failure of any transformer will create critical situation hence extra attention is required in commissioning, maintenance & protection of these transformers. The periodical maintenance practice should improve the life period of transformer.
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Fire Pump Transfer Switch Application and Design Criteria
This Presentation is about l.v switch gear design, presented during the graduation project final discussion 15/7/2018.
It presented a good summary of switch gear components and types and practicing on AL.HAMOOL W.T.P M.D.B design using SIEMENS SIVACON S8
A power transformer is most costly and essential equipment of an electrical transformer. It is well known fact that power transformers are the heart of the power systems which enable us to establish very large power systems networks. Failure of any transformer will create critical situation hence extra attention is required in commissioning, maintenance & protection of these transformers. The periodical maintenance practice should improve the life period of transformer.
The webinar will include several demonstrations and discuss:
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Unleashing the Power of Modern MarketingDigital Vidya
Wish to know how can you be successful at 'Unleashing the Power of Modern Marketing'?. You will find this deck presented by Hitu Chawla, Director Enterprise Marketing, Microsoft India during Webinar for Digital Vidya. Interested in attending similar Webinar Live? Register Now at http://www.digitalvidya.com/webinars/
Atidan is pleased to announce the new Office 365 E5 Plan
1. Modern Collaboration
Connecting with coworkers, customers and partners is critical for anyone’s business. Too often, collaboration is blocked by technology silos, competing platforms, distance and security concerns or a solution that might be too hard to use. Our new Modern Collaboration investments center on giving customers a truly real time communications platform, where the cloud enables all forms of meetings, calls and interactive collaboration to work (and be managed) together. Companies increase their reach with customers in a secured platform. These are all investments delivered from Skype for Business in Office 365
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Need, Meaning, Forms, different facets, Link Language of Minorities, Place of English – Recommendations of Eshwar Bhai Patel Committee and Classical Languages
3. Eskom’s 5 Life Saving Rules
• Open, isolate, test, earth, bond and/or insulate before touch
• Hook up at heights
• Buckle up during vehicle trips
• No one is to work under the influence of alcohol or/and drugs
• Having a valid worker’s permit
3
4. 4
Training Schedule
Departments Visited Date
PPM Coastal 3 February 2014 – 14 March 2194
Standards Implementation 17 March 2014 – 4 April 2014
CNC Coastal 7 April 2014 – 9 May 2014
CPM – Metering 12 May 2014 – 4 July 2014
CPM- DC 7 July 2014 – 15 August 2014
CPM - Telecontrol 18 August 2014 – 10 October 2014
CPM - Protection 13 October 2014 - 23 December 2014
5. Training Schedule
5
Next Department Period
Project Engineering 15 January 2015 – 17 April 2015
Network Optimization 20 April 2015 – 5 July 2015
Network Planning 07 July 2015 – 4 September 2015
After 3rd Evaluation
Plant 7 September 2015 – 6 November 2015
Network Optimization 9 November 2015 – 9 December 2015
10. Khotana Project
• Khotana Electrification project consists of 36 villages with the total
number of connections of 3603.
• Ebongweni Village allocated to EIT with approximately 171
connections.
• Feeding from Idutywa/Butterworth 22kV network.
• Take off from structure BUT-IDU-176 and build a 3 phase Mink line to
Ebongweni.
10
11. • Preliminary Design:
The main purpose of the preliminary design is to determine the best
design alternative which will satisfy the conceptual design, costs and
need date defined by Planning in the Concept Release Approval form
and associated Planning Proposal report.
Containing:
• Scope of works
• System Configuration
• MV fault levels
• MV Voltage Intake Levels – Full load and 50% load
• Performance levels
11
Khotana Project - Needed
18. Quantify
18
The method of quantifying is
used to determine the number
of hardware needed for project
construction.
Each village gets quantified in
an attempt to obtain the number
of connections, establish the
different structure needed and
to calculate the MV and LV span
lengths.
The quantification results are
used to create a bill of
structures that forms part of the
project FDP.
19. Mhlontlo Project
• FDP
• Part D - Detailed Scope of Work and Specifications
• Part E – Bill of material
• Part F - Land Development Package
• Part G - Drawings
• Single Line Diagrams
19
20. Part D - Bill of Structures
Structure D-DT-
No
SHT REV. DESCRIPTION
Spur to KNNEU008
KNEU008-1
1343 0 2 PHASE / PHASE - DELTA / 2,5m WOOD X-ARM - STRAIN - 0° DEVIATION
0051 0 13 POLE, WOOD 11,0m x 160-179 TOP DIA.
0341 2 of 5 16 STAY ASSEMBLY (MV - 97kN) WOOD POLES
1848 0 1
SECTION LINKS CUT/OUTS OR DISCONNECTORS 2.5m WOOD
CROSSARM / SINGLE POLE
KNEU008-2
1346 0 2 PHASE / PHASE - DELTA / 2,5m WOOD X-ARM - STRAIN - TERMINAL
0051 0 13 POLE, WOOD 11,0m x 180-199 TOP DIA.
1866 1 of 2 5
TRANSFORMER - 5-100kVA SINGLE POLE MOUNTED (OUT-OF-LINE)
GENERAL ARRANGEMENT
1849 0 1
EQUIPMENT LINKS CUT-OUTS OR DISCONNECTORS 2.5m WOOD
CROSSARM / SINGLE POLE
0341 2 of 5 16 STAY ASSEMBLY (MV - 97kN) WOOD POLES
20
25. Contingency Plans
• Contingency plans are compiled to assist operators, controllers and
technicians/engineers in case of any emergency during maintenance
and /or outages.
• Network stability studies and simulations are done to verify whether
the network will operate at a stable and safe manner for the full
duration of maintenance/outage
• List of contingency plans:
• Mfinizo Transformer 1 outage
• Sipakweni Transformer 1 outage
• Butterworth -Idutywa 132 kV maintenance
• Poseidin 132kV busbar maintenance
• Sterkspruit S/S - Bypass Ndofela 22kv feeder
25
27. Mfinizo Transformer 1 Outage
27
OUTAGE DETAILS:
Substation:
Device:
From date: From time:
To date: To time:
Purpose:
Mitigations:
Risk:
Contingency:
Compiler:
Mfinizo
132kV / 22kV Transformer 1
Operator to open, isolate & earth transformer 1 for assessment purposes.
02/07/2015 10:30
02/07/2015 17:00
Transformer 2 will be able to handle the load of both transformers during the
stipulated times.
Ensure Transformer 2 is in service.
The main risk here will be the loss of Transformer 2 while Transformer 1 is out of service
for this training. This will immediately result in loss of supply to all the Mfinizo customers.
If Transformer 2 does trip and cannot be put back into service quickly enough, the
best advice would be to stop the training activities taking place on Transformer 1,
and, when safe to do so, close back Transformer 1 and use it to supply the
customers (at least until the fault with Transformer 2 is resolved and it can be
returned to service).
Ernst de Villiers (Under supervision of Andrew Bryce)
30. 30
Poseidon 132kV Busbar Maintenance
OUTAGE DETAILS:
Substation:
Device:
From date: From time:
To date: To time:
Purpose:
Mitigations:
Risk:
Contingency:
Compiler:
Poseidon
POSEIDON 132KV BB COUPLER
Operator to OIE in order to perform voltage exceedance investigation on
132kV Bus Bar.
2015/06/09 7:30
2015/06/10 16:00
132 kV bus bar needs to be in service for the duration of the outage.
Loss of supply of the 132kv Bus Bar.
Before the start of the outage, Capacitor bank at Albany needs to be in
service.
Operators to be available at Graaff-Reinet and Hangklip substations.
Remove Hangklip load in order to tap Hangklip Regulator TRFR 1 higher.
After tapping of transformer, Graaff-Reinet load can be brought back into
service.
Ernst de Villiers Athini Pantshwa
32. • Dangershoek 22kV breaker should be able to withstand both feerders
load = catering for about 250 A.
• Clearly, Dangershoek 22kV breaker overcurrent protection can
withstand combined load of 250A. No unnecessary tripping.
32
Peak Current
Feerder Amps
Ndofela 22kV 99A
Dangershoek 22kV 123A
Pick-Up Overcurrent
Feeder Level
Ndofela 22kV 396A
Dangershoek 22kV 396A
Sterkspruit S/S - Bypass Ndofela 22kv feeder
33. 33
OUTAGE DETAILS:
Substation:
Device:
From date: From time:
To date: To time:
Purpose:
Mitigations:
Risk:
Contingency:
Compiler:
Sterkspruit
Ndofela 22kV BRKR
To bypass Ndofela 22kV BRKR with Dangershoek 22kV BRKR for Training
purposes.
16/06/2015 10:30
16/06/2015 16:30
Dangershoek 22kV feeder must be in service for the duration on the outage.
Dangershoek 22kV BRKR tripping - resulting in loss of supply for both Dangershoek
and Ndofela feerders.
Stop the training taking place and return Ndofela 22kV BRKR back into the
service as soon as possible.
Ernst de Villiers and Luntu Ntwasa
Sterkspruit S/S - Bypass Ndofela 22kv feeder
34. Distribution Losses
• Methodology for the calculation of all sub-transmission technical
(Copper 𝐼2R and Iron) losses in the DX group, from the point of
purchase (MTS) to the beginning of the MV networks.
34
35. 35
Distribution Losses
Total System Purchases
549 GWh
Total System Loss
Energy
12.296903
GWh
% Loss
2.2 %
MTS Sheet Name Sheet Index
Total Purchases
(MWh)
Load at System
Peak (MVA) LLF Scaled
Copper Power Loss
from PF (MW)
Iron Power Loss
from PF (MW)
Loss Energy
(MWh) % Loss
Dedisa 3 111231 267.2 0.417 8.110022659 0.422453347 2553.851262 2.3
Delphi 4 35354 92.6 0.395 7.120966347 0.332550096 2111.421756 6
Grassridge 5 153342 359.7 0.454 4.831367149 0.210310279 1612.872814 1.1
Neptune 6 112961 212.8 0.120 3.156969685 0.119233626 334.4539971 0.3
Pembroke 7 38130 87.9 0.490 2.316056716 0.253403541 931.5565071 2.4
Poseidon 8 27832 75.9 0.445 5.114168057 0.283836582 1719.294 6.2
Vuyani 9 64679 108.3 0.412 9.254200879 0.542911654 2924.813882 4.5
Uniondale 0 5213 12.2 0.335 0.343509817 0.046709326 108.6387045 2.1
40. Dx OU Asset Creation: Network Planning
Network Planning
40
Master Planning
Engineer x n
P13
Master Planning Snr
Engineer x n
P16
Development
Planning Engineer
x n
P13
Development
Planning Snr
Engineer x n
P16
Head of Network
Development
Planning x n
M16
Dev Planning Snr
Technician x n
T12
Dev Planning
Technician x n
T11
Smart Grid &
Telecomms
Planning
Engineer x n
Smart Grid &
Telecomms
Planning Snr
Technician x n
Smart Grid &
Telecomms
Planning
Technician x n
Geo Load Forecast
Engineer x n
P13
Geo Load Forecast
Snr Engineer x n
P15
Planning Tools
Applicator Engineer
P13
Planning Tools
Applicator Snr
Engineer x n
P15
GIS Advisor n
P13
GIS Snr Advisor x n
P15
Town Planner
x n
P12
Snr Town Planner x
n
P15
Re-linked unit/position
Relocated unit/position
Changed unit/position <30%
Changed unit/position >30%
New unit/position
Combined and revised profiles
Head of Planning
Support Services
M15
Smart Grid &
Telecoms Planning
Snr Engineer x n
P16
Cost of Supply
Engineer
Investment
Planning Snr
Engineer x n
P16
Distribution
Generation Snr
Engineer/
Technologist x n
P16
Investment
Planning Engineer
x n
P13
Customer
Services
Senior Clerk
x n
Admin Support
Existing activities but no profile
41. Network Development Plan
41
• Analysis of the present and future loading, performance, condition
of the network as well as quality of supply to the customers is
evaluated.
• This NDP will focus on low voltages, network thermal constraints
and reliability analysis of the sub-transmission (HV) and distribution
(MV) networks.
