Power Transformer Diagnostics and Insulation
Power Transformer Diagnostics and Insulation is a research topic within Electrical and Electronic Engineering. Science Explorer counts 23k research works in it since 1950. 7.8% of them reached the world's top 10% most cited for their field and year.
This cluster of papers focuses on the condition assessment and diagnosis of power transformers, with an emphasis on techniques such as dissolved gas analysis, frequency response analysis, and dielectric spectroscopy. The aging of insulation materials, use of vegetable oils, and asset management strategies are also key areas of research.
- Dissolved Gas Analysis
- Frequency Response Analysis
- Insulation Condition Assessment
- Transformer Fault Diagnosis
- Dielectric Spectroscopy
- Aging of Insulation
- Power Transformer Asset Management
- Oil Impregnated Paper
- Vegetable Oils for Transformers
- Diagnostic Techniques
- Research works
- 23k fractional, since 1950
- In the world top 10%
- 1.8k per year above
- Top-10% rate
- 7.8% share of its works in the world top 10%
- Growth, 2013–17 → 2018–22
- +43% the tick is no change
Which countries lead Power Transformer Diagnostics and Insulation research?
By volume, China and India publish the most (1.7k and 441 works in 2022–2025).
How concentrated that is
The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.
Shares of the rows listed above, not of the whole node.
Which institutions lead Power Transformer Diagnostics and Insulation research?
By volume in 2022–2025, North China Electric Power University publishes the most Power Transformer Diagnostics and Insulation research, followed by Xi'an Jiaotong University and China Southern Power Grid (China).
By volume, 2022–2025
- 1 North China Electric Power UniversityChina 110 works
- 2 Xi'an Jiaotong UniversityChina 108 works
- 3 China Southern Power Grid (China)China 99 works
- 4 State Grid Corporation of China (China)China 92 works
- 5 Chongqing UniversityChina 87 works
- 6 Shanghai Electric (China)China 60 works
- 7 Electric Power Research InstituteUnited States 36 works
- 8 China Electric Power Research Institute?? 32 works
- 9 Wuhan UniversityChina 31 works
- 10 Shandong UniversityChina 31 works
Who are the leading researchers in Power Transformer Diagnostics and Insulation?
The most-cited researchers publishing on Power Transformer Diagnostics and Insulation include Frede Blaabjerg and Marco Liserre.
- 1 Frede Blaabjerg Denmark 12k citations
- 2 Marco Liserre Germany 4.6k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Power Transformer Diagnostics and Insulation research done?
The largest centres of Power Transformer Diagnostics and Insulation research in 2022–2025 are Beijing (China), Xi'an (China), Guangzhou (China) and Chongqing (China). Among places with at least 20 works in it, it is an unusually large share of all research in Xi'an, Palo Alto and Beijing.
Largest cities, 2022–2025
Where it is the local speciality
- Xi'an29.2 works94×
- Palo AltoUS · 35.7 works25×
- Beijing38.6 works22×
Location quotient: how much more of its research is in Power Transformer Diagnostics and Insulation than the world average.
Where is the best place to study Power Transformer Diagnostics and Insulation?
Among universities, judged by research, Pandit Deendayal Energy University, Xi'an Jiaotong University and Université du Québec à Chicoutimi score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.
One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | Pandit Deendayal Energy UniversityIndia | 63.7 | 44.7% | 21.0× | 10 | — |
| 2 | Xi'an Jiaotong UniversityChina | 62.0 | 6.4% | 15.9× | 108 | +138.3% |
| 3 | Université du Québec à ChicoutimiCanada | 60.0 | 31.5% | 70.9× | 17 | +45.8% |
| 4 | Chongqing UniversityChina | 53.9 | 5.3% | 18.7× | 87 | +49.0% |
| 5 | North China Electric Power UniversityChina | 51.5 | 2.7% | 38.9× | 110 | +26.4% |
| 6 | National Institute of Technology CalicutIndia | 47.4 | 7.5% | 17.3× | 10 | +490.5% |
| 7 | King Mongkut's Institute of Technology LadkrabangThailand | 47.1 | 2.5% | 24.1× | 13 | +186.7% |
| 8 | Wuhan UniversityChina | 45.6 | 9.1% | 6.1× | 31 | +179.3% |
| 9 | Shandong UniversityChina | 44.6 | 5.6% | 6.1× | 31 | +282.2% |
| 10 | Jadavpur UniversityIndia | 43.7 | 7.6% | 14.8× | 17 | +72.6% |
Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.
Is Power Transformer Diagnostics and Insulation research growing?
Output in 2018–2022 was 43% higher than in 2013–2017, peaking in 2025. The fastest-growing topics are Power Transformer Diagnostics and Insulation.
The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.
Which topics inside it are moving
Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.