Brukergruppen for kraft- og industritransformatorer

CIGRÉ

CIGRÉ er en organisasjon som utarbeider rapporter for høyspenningsanlegg basert på erfaringer i bransjen. Organisasjonen er basert på frivillighet og fungerer som en brobygger mellom forskning og anvendelse.

Cigre studiekomite A2 – Power transformers and reactors består for tiden av 28 regulære medlemsland og 16 "Observer" medlemsland. Hans Kr. Høidalen, NTNU er norsk medlem i Cigres studiekomite A2 - Transformers. På denne fanen legges fortløpende ut informasjon om pågående arbeid for studiekomite A2 - Transformers.

Se spesielt linker til SC A2 events, e-cigre library og CIGRE SC A2 Rapporter. 

For utvalgte rapporter fra SC A2, D1 og C4 se også oversikt Brukergruppen: Rapporter oversikt A2, D1 og C4.

Pågående arbeidsgrupper SC A2 (WG):

Arbeidsgrupper under oppstart (ønske om deltagelse i arbeidsgrupper gjøres til Hans Kr. Høidalen – NTNU):

• A2-65: Transformer digital twin - concept and future perspectives (Leder: Patrick Picher)
• D1/A2.66: Breathing systems of liquid filled transformers and reactors ()
• A2-67: Guideline for online dissolved gas analysis monitoring (Leder: Tara-lee MacARTHUR)
• A2-68: Failure survey of lower voltage generator step up transformers installed in wind farms and photovoltaic parks (Leder: Peter Werle)
• A2-69: Guide for transformer maintenance - update (Leder: Claude Rajotte)

Temaer for Cigre konferanse Paris 2024 for SC A2 (Frist for innsendelse av syniopsis til Cigre Norge er 4/6-2023. Call for papers):

• PS 1: DESIGN OF RESILIENT TRANSFORMERS
  • Stresses from the environment: Impact of global warming, high temperatures heavy rain, high winds, offshore installations, etc.
  • Stresses from the system: switching impulses, reverse flow, emergency overloading, harmonics, GIC, short-circuits and internal arcing etc.
  • Specifications: design criteria, materials and testin g requirements for new transformers. Suitable maintenance standard and refurbishment strategies.
• PS 2: ADVANCEMENTS IN TRANSFORMER ANALYTICS
  • Data management: digitalisation and information model, online and offline test data, integration of condition and multiple data sources, data preparation for analytics.
  • Diagnostic and on-line monitoring: algorithm/guidelines for on-line monitoring, advanced interpretation of condition data, case studies.
  • Modelling: transformer digital twins (thermal, dielectric, mechanical, etc.), physics-based and hybrid models, failure probability and ageing models, applications of artificial intelligence.
• PS 3: RELIABILITY OF TRANSFORMERS FOR RENEWABLE ENERGY
  • Transformers for low carbon technologies: voltage < 100kV, wind and photovoltaic parks, battery energy storage and electric vehicle charger etc.
  • Case studies and lessons learned: type of failure, root cause analysis, mode of operation. Recommendations concerning procurement, design, operation and asset management strategies.
  • Failure Prevention: useful diagnostic methods and monitoring systems. Optimization of operating conditions and additional measures such as overvoltage protection, harmonic reduction, cooling optimisation etc

Arbeidsbeskrivelse inkludert tidsplan for arbeidsgrupper i SC A2 er vedlagt nedenfor:

Antall vedlegg: 26

Id	Dokument	Forfatter	Stikkord
699	TOR-WG A2_69_ Guide for transformer maintenance update	Clause Rajotte
698	TOR-WG A2_68_Failure survey of lower voltage generator step up transformers installed in wind farms and photovoltaic parks	Perter Werle
697	TOR-JWG A2_D1_67_Guideline for online dissolved gas analysis monitoring	Tara-lee MacArthur
696	TOR-JWG A2_D1_66_Breathing systems of liquid filled transformers and reactors	Daniel Koch
695	TOR-JWG A2_D2_65_Transformer Digital Twin - concept and future perspectives	Patrick Picher
700	TOR-JWG D1_A2_77_Liquid Tests for Electrical Equipment	Fabio Scatiggio
630	JWG A3/A2/A1/B1 Limitations in Operation of High Voltage Equipment of Frequent T	Bartosz Rusek (Germany)	ENTSO-E, Fornybar, overspenninger, ac, kabler
629	WG A2.64 Condition of Cellulose Insulation in Oil Immersed Transformers aftr Fac	Claes Bengtsson	DP, kvalitetskontroll, fabrikktest, papiraldring
628	WG A2.63 Transformer Impulse Testing	Ebrahim Rahimpour (Germany)	lynimpuls, viklingstress, holdfasthet, nye væsker, testing
627	WG A2.62 Analysis of AC Transformer Reliability	Stefan Tenbohlen	feilstatistikk, feilrater
626	WG A2.61 On-load tap changer best practice	Axel Kraemer	trinnkopler, anbefalinger
625	WG A2.60 Dynamic Thermaal Behaviour of transformer	Tim Gradnik	Termisk modellering, temperatur, transient, Hot-spot
505	WG A2.59 On-Site Assembly, On-Site Rebuild, and On-Site High Voltage Testing of	Yukiyasu Shirasaka	reparasjon, testing, on-site
504	WG A2.58 Installation and Pre-Commissioning of Transformers and Shunt Reactors	Ross Willoughby	Installasjon, idriftsettelse, testing
503	WG A2.57 Effect of DC bias	Dejan Susa	GIC, Metning, dc
502	WG A2.56 Transformer efficiency	Zarco Janic	tap, kostnader
501	WG A2.55 Life extension of oil filled transformers	Pascal Mueller	Levetidsforlengese, aldring, forvaltning, asset management
500	WG A2.54 Audible sound requirements	Christophe Ploetner	støy, dB, lyd
499	WG A2.53 Mechanical condition and FRA analysis	Patrick Picher	viklinger, viklingsforskyvning, kortslutning, FRA, frekvensrespons
498	JWG A2/C4.52 High-frequency transformer models	Bjørn Gustavsen	frekvens, modell, respons, transient
497	JWG A2/D1.51 Improvement to Partial Discharge Measurements for Factory and S	Sebastian Coenen	delutladninger, PD, FAT
496	WG A2.50 Effect of the distributed energy sources and consequent induced reverse	Jean Christophe ribaud	fornybar,
495	WG A2.49 Condition assesment of power transformers	Peter Cole	tilstandsvurdering, helseindex, forvaltning, asset management
494	JWG A2/D1.46 Field experience with transformer solid insulartion ageing markers	Jocelyn Jalbert	cellulose,aldring,furan, furaner, metanol, diagnose
493	WG A2.45 Transformer failure and post-mortem analysis	Marie-Claude Lessard	Skroting, feilanalyse, post mortem, post-mortem
492	WG A2.43 Bushing reliability		gjennomføringer