1MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
National Power Grid Company TRANSELECTRICA S.A. – ROMANIA
• Joint-Stock, 100% state-owned company• Operating according to Transmission and System Operator
Licenses and Transmission Grid Code • Founded further to Government Decision 627/2000 by
splitting former National Electricity Company (CONEL) into 4 separate legal entities
• 76 substations (voltage levels of 750kV, 400kV, 220kV and 110kV)
2MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
• MissionMission: – granting third party regulated access to Transmission
Power Grid– safe and cost-effective operation within an
encreasing competitive market economy
• Target:Target:- hub of electricity transmission in S-E Europe- interconnection to UCTE of Romanian Power System- transboundary electricity connections on the regional
market
3MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
MAP
Romanian Transmission System Diagram
CodificationCodification
750kV Ovrhead Line400kV Overhead Line220kV Overhead Line
Electrical Substation
Transmission subsidiaries Transmission subsidiaries
SERBIA
4MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
THE NEED FOR SUBSTATIONS REFITTINGTHE NEED FOR SUBSTATIONS REFITTING Technological development of primary and auxiliary
equipmet using state-of-the-art technology Exceeded operational life and current condition of the
equipment Necessity of increasing the computerised degree of
operation, maintenance, supervision of technological electrical systems
5MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
REFITTING METHODS APPLIED (technical matters) REFITTING METHODS APPLIED (technical matters)
PrinciplesPrinciples1. Reconsidering the single line diagrams of the
substations in terms of : structural changes occurring in the related industrial
environment interconnection priorities to UCTE’s power systems reliability of the new equipment (allowing the
simplification of the connections diagram)
(CONTINUED)
6MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
REFITTING METHODS APPLIED (technical matters) REFITTING METHODS APPLIED (technical matters)
PrinciplesPrinciples2. Replacing the primary and control-protection equipment
at de-centralised level 3. Reconsidering the substation control concept at the
21st century’s technological level for the so-called ‘next generation control’
4. Remaking the auxiliary services systems in agreement with the new requirements from the norms and to a performance level
(CONTINUED)
7MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
REFITTING METHODS APPLIED (technical matters) REFITTING METHODS APPLIED (technical matters)
PrinciplesPrinciples
5. Remaking the construction part and the cables system
6. Minimaizing of the impact upon the national power system reliability
7. Minimizing of impact upon environment
8MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
GATHERED EXPERIENCEGATHERED EXPERIENCEwith refitting/extending the electrical substations Portile de Fier, Tantareni,
Urechesti, Arad, Mintia
• ‘turn-key project’• harmonising the Romanian norms and standards to the
suppliers’• legislation and equipment solutions • unity of technical solutions of a project• simplifying of the substation one-line diagram• finding and applying proper financing schemes
9MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
GATHERED EXPERIENCEGATHERED EXPERIENCE
with refitting/extending the electrical substations Portile de Fier, Tantareni, Urechesti, Arad, Mintia
• applying the legislation of quality assurance environmental protection and installation security
• supervising the project development using a dedicated software
• ensuring of balanced geographical coverage
10MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
CRITERIA FOR SUBSTATION REFITTING HIERARCHY – CRITERIA FOR SUBSTATION REFITTING HIERARCHY – BASE OF RELIABILITY & IMPORTANCE METHODBASE OF RELIABILITY & IMPORTANCE METHOD
• The physical wear and the obsolescence of the technological electric installations that determine their technical condition
• The importance of the substations for the safe operation of the NPS
• The electricity transmitted yearly through the substations
• The economic-financial criteria
• Synchronous and asynchronous interconnection to the neighbouring electric power systems
11MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
MAP II
Romania – Transelectrica S.A.Substations refitting
CodificationCodification
-Refitted/extended substations-Substations in different stages of refitting/extending- Substations to be refitted after 2005-Substations being refitted on C&P (investments) completed with advanced maintenance works (including replacement of primary equipments)-Substations forseen to be refitted by advanced maintenance works completed with investment works-Substations with advanced maintenance works underway
SERBIA
12MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
Tantareni 400kV Substation (commissioned 2002)
13MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
Urechesti 400220/110kV Substation (commissioned 2002)
14MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
Iron Gates 400220/110kV Substation (commissioned 2002)
15MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
Arad 400kV Substation (extension)
16MARCIU_RO_author_Alpha5_Block1.ppt
Barcelona 12-15 May 2003
REFITTING STRATEGY FOR ROMANIAN POWER SYSTEM SUBSTATIONS
CONCLUSIONSCONCLUSIONS
The realistic approach to the refitting projects of the substations in the ETG is based on a stable and modern strategy that:
• is conceptually structured in technical terms by means of advanced equipping solutions and the control of the electrical technological process at current world level
• is based on multi-criteria methods determining the sequence of refitting projects start up
• uses the global solution of “turnkey project”• provides an efficient project management carried on by the Project
managers• monitors the project development at different competence levels
using a specialized software• uses experience gained by already refitted substations in Romania
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