The document discusses integrated services provided by WEIDMANN Electromagnetic Services located in Chiasso, Switzerland. The services include solutions for power and industrial transformers, power systems, and power electronics. Some examples of services provided are failure analysis, design reviews, testing, insulation coordination studies, and electromagnetic compatibility studies. The goal is to provide customers with a reliable partner capable of identifying and solving problems through multidisciplinary expertise and advanced simulation tools.

1. INTEGRATED SERVICES
Electromagnetic Services team, Chiasso office (CH)
ELECTRICAL TECHNOLOGY
WEIDMANN ELECTROMAGNETIC SERVICES
A Member of the WICOR Group

2. INTEGRATED SERVICES
CONTENT OVERVIEW
INTEGRATED SERVICES
1. About us
2. Integrated Services
3. Case studies
4. Conclusions
Integrated Services / Electromagnetic Services/General 2

3. INTEGRATED SERVICES
About us
Who we are?
• In WEIDMANN we believe
that the customer needs a
reliable partner capable to
help in taking valuable
decisions. Also able to identify
and solve problems and not a
mere services supplier
• That is why WEIDMANN has
formed a high skilled team
capable to offer integrated
services as well as a wide
range of special studies
Integrated Services / Electromagnetic Services/General 3

4. INTEGRATED SERVICES
About us
Our locations We are located in Chiasso (Switzerland)
Integrated Services / Electromagnetic Services/General 4

5. INTEGRATED SERVICES
Values for our customers
Our customers can rely on our:
• Ability to perform multidisciplinary activities
• Extensive and up to date knowledge of our experts about:
1.Industrial (up to 100kA) and power transformers (up to 1000kV AC,
800kV DC)
2.Transmission, distribution and industrial electrical power systems
3.Power converters and high current rectifiers
• Solid organization with very advanced simulation tools and
laboratories
• Fast and reliable delivery
• Independence
Integrated Services / Electromagnetic Services/General 5

6. INTEGRATED SERVICES
Terms and delivery
How does the collaboration work?
1. We know that any solution is really such only if delivered in time
compatible with your workflow and if it takes into account what is
technically feasible
2. In our contracts we define clearly:
1. What information we need to do the job
2. What you will get from us
3. When you will get it
3. Moreover, our reports have always a one-page executive summary,
which clearly reviews the main conclusions of the job
Integrated Services / Electromagnetic Services/General 6

7. INTEGRATED SERVICES
Our reference list
ABB Research Center, Baden, Switzerland Dubal, Dubai, UAE
ABB Transformer, Cordoba, Spain EMAL, Dubai, UAE
ABB Industrial Transformer Legnano, Italy Alba, Bahrain
ABB Bad Honnef, Germany Hindalco, India
ABB Varennes, Quebec, Canada Prysmian Cavi, Milan, Italy
AREVA Gebze, Turkey Prysmian Cables y Sistemas, Spain
ASA Trafobau GmbH, Bad Arolsen, Germany Dynegy, Houston, Texas USA
Crompton Greaves, Mumbai, India Portland GE Company, Oregon, USA
France Transfo, Metz, France Union Fenosa, Madrid, Spain
International Transformer, UK AREVA T&D, Dubai, UAE
MATELEC Group, Lebanon PII GE, UK
MF Trasformatori, Calcinato, Italy Maschinenfabrik Reinhausen GmbH, Germany
Pioneer Transformers, Quebec, Canada Resolar Srl, Italy
Powertech, Pretoria, South Africa ABB Rectifiers, Turgi, Switzerland
P.T. Pauwels Trafo Asia, Bogor, Indonesia FRIEM Rectifiers, Segrate, Italy
SEA Trasformatori, Vicenza, Italy ACINDAR, Argentina
Siemens PTD, Dresden, Germany Alstom Grid, Turkey
Siemens - STEM Transformers , Trento, Italy Danieli Automation, Italy
Southwest Electric, Oklahoma, US Sunpower, Italy
Tamini Group, Melegnano, Italy SMA, Germany
TMC Trasformatori, Italy
Togliatti Transformator, Togliatti, Russian Federation
WEG, Blumenau, Brazil Some other costumers are not listed because
Wilson Transformer Company, Australia of Confidentiality agreements in-force.
Integrated Services / Electromagnetic Services/General 7

8. CONTENT OVERVIEW
INTEGRATED SERVICES
1. About us
2. Integrated Services
3. Case studies
4. Conclusions
Integrated Services / Electromagnetic Services/General 8

9. INTEGRATED SERVICES
Integrated services
Solutions for:
Transformers
• Power & Industrial Transformers
• Power Systems
Power Power
• Power Electronics Electronics Systems
Integrated Services / Electromagnetic Services/General 9

10. INTEGRATED SERVICES
Power & Industrial Transformers
• Magnetic, thermal and
dielectric problems solving
• Design reviews
• Failure analysis
• Tests (dielectric, moisture,
etc.), witnessing tests
• Dynamic voltage distribution
in windings
And more
Integrated Services / Electromagnetic Services/General 10

11. INTEGRATED SERVICES
Power Systems
Probability lightningCurrent [kA]
Probability Lightning current [kA] MW
• Insulation coordination 0.025
Positive
Negative
studies 0.02
0.015
• Static and dynamics
analysis 0.01
0.005
• Electromagnetic 0
compatibility studies
0 50 100 150 200 250 300
i [kA]
18.0
Individual Harmonic Distortion – V11 Harmonic [pri.Ohm]
16.0
DZ_A
• Measurements 14.0
12.0
Zl A 5.447 pri.Ohm 79.29°
Zl B 5.447 pri.Ohm 79.29°
Zl C 5.447 pri.Ohm 79.29°
Fault Type: ABC
Tripping Time: 0.41 s
10.0 Zone 2
Z2: 0.41 s
Zone 3
8.00 Z3: 0.71 s
• Protection systems
T (=>)
Dir-Z: 1.01 s
6.00 T (<=>)
Starting: 1.51 s
coordination 4.00
2.00
-14.0 -12.0 -10.0 -8.00 -6.00 -4.00 -2.00 2.00 4.00 6.00 8.00 10.0 12.0 14.0 16.0 18.0 20.0 22.0
-2.00
And more -4.00
-6.00
-8.00
-10.0
Integrated Services / Electromagnetic Services/General 11

12. INTEGRATED SERVICES
Power Electronics
• Technical specifications
• Simulations
• Witnessing tests
• On site expertise
• Design review of power
converters and high
power rectifiers
And more
Integrated Services / Electromagnetic Services/General 12

13. INTEGRATED SERVICES
Integrated services Transmission systems HVDC systems
Power plants Distribution system
Compensation systems Wind farms
Sub-transmission systems Photovoltaic plants
Industrial plants Case studies
Integrated Services / Electromagnetic Services/General 13

14. INTEGRATED SERVICES
Integrated services
Transmission systems
Weidmann integrated services include:
• Feasibility of transmission systems and electrical interconnection
• Technical and economic evaluations (voltage levels, transmission technology - AC or DC, etc.)
• System operation evaluation (fault conditions, insulation coordination, EMC, safety, etc.
• Technical specifications (SVC, STATCOM, Transformers, etc)
• Design reviews
• Torsional interactions between electrical network phenomena and turbine-generator shafts
• Type tests, commissioning tests and inspection factory tests, monitoring factory production, etc.
• Support during start-up and commissioning
• Performance evaluation of the system relating to: reliability, security, dynamic behavior (transient stability and voltage
stability)
• Coordination and protections setting
• Calculations of electromagnetic fields (EMF) and corrective measures
Integrated Services / Electromagnetic Services/General 14

15. INTEGRATED SERVICES
Integrated services
Power Plants
• Our services are oriented to power producers (IPPs) and developers of new generation projects that
requires a connection to the power system.
• Thermal conventional (Gas fired, coal, combined cycles, etc.), renewable (hydro, wind, solar, etc.)
and distributed generation are covered by our services.
• Techno - Economic Consultancies and Studies (pre-feasibility and feasibility studies, preliminary designs)
• Torsional interactions between electrical network phenomena and turbine-generator shafts
• Specification of Electrical (and Power Electronic) Components and Systems
• Design Review, Quality Assurance, Inspections
• Assistance to the tests
• Due diligence
• Life assessment / life extension studies
• Fault Analysis
Integrated Services / Electromagnetic Services/General 15

16. INTEGRATED SERVICES
Integrated services
Compensation systems
Weidmann integrated services include:
• Technical and economic evaluations (FACTS technology)
• Technical specifications (SVC, STATCOM, Transformers, etc)
• Type tests, commissioning tests and inspection factory tests, monitoring factory production, etc.
• Support during start-up and commissioning and performance verification
• Performance evaluation of the system relating to: reliability, security, dynamic behavior (transient stability and voltage
stability)
• Coordination and protections setting
• Calculations of electromagnetic fields (EMF) and corrective measures
Integrated Services / Electromagnetic Services/General 16

17. INTEGRATED SERVICES
Integrated services
Industrial Plants
Weidmann integrated services include:
• Analysis and optimization of the operation of industrial power systems
• Assistance to the tests on electric components: transformers, motors, power electronics
• Fault analysis
• Electromagnetic transients
• Power quality assessment
• Electric protections issues
• Problem solving
• Bid evaluations
Integrated Services / Electromagnetic Services/General 17

18. INTEGRATED SERVICES
Integrated services
Sub-Transmission systems
Weidmann integrated services include:
• Plans preparation for expansion of sub-transmission and distribution for urban and rural areas
• Technical specifications (SVC, STATCOM, Transformers, etc)
• Type tests, commissioning tests and inspection factory tests, monitoring factory production, etc.
• Support during start-up and commissioning and performance verification
• Performance evaluation of the system relating to: reliability, security, dynamic behavior (transient stability and voltage
stability)
• Coordination and protections setting
• Calculations of electromagnetic fields (EMF) and corrective measures
Integrated Services / Electromagnetic Services/General 18

19. INTEGRATED SERVICES
Integrated services
HVDC links
Weidmann integrated services include:
• Inductive coordination studies
• Electromagnetic transient simulations
• Technical specifications (Transformers, cables, etc)
• Type tests, commissioning tests and inspection factory tests, monitoring factory production, etc.
• Coordination and protections setting
• Calculations of electromagnetic fields (EMF) and corrective measures
• Insulation coordination studies
Integrated Services / Electromagnetic Services/General 19

20. INTEGRATED SERVICES
Integrated services
Distribution systems
Weidmann integrated services include:
• Distribution systems automation
• Electromagnetic transient simulations
• Technical specifications (Transformers, cables, etc)
• Type tests, commissioning tests and inspection factory tests, monitoring factory production, etc.
• Coordination and protections setting
• Measurements: Power quality and transients
• Calculations of electromagnetic fields (EMF) and corrective measures
Integrated Services / Electromagnetic Services/General 20

21. INTEGRATED SERVICES
Integrated services
Renewable plants
Weidmann integrated services include:
• Assistance to the tests on electric components: transformers, power electronics, etc.
• Fault analysis
• Electromagnetic transients simulations
• Measurements: Power quality and transients
• Power quality assessment
• Coordination and protections settings
• Problem solving
• Bid evaluations
Integrated Services / Electromagnetic Services/General 21

22. INTEGRATED SERVICES
Case studies
1. Protection system coordination for a new power plant
2. Torsional interaction between Electrical Network and turbine-generator shafts
3. Very Fast Front Overvoltages in a 400 kV GIS
4. Lightning performance of HV GIS station
5. Electromagnetic redesign to prevent tank overheating
6. 250Mvar SVC Technical Specification
7. STATCOM Technical Specification
8. Ferroresonance in a wind farm
9. Sympathetic inrush in MV network with Petersen’s coil
10. Example of 3D field calculation 765kV
11. Tank and Clamping Structures Losses and Temperature Rise Verification
12. Power System Study for a new PST
13. Insulation coordination for a series compensated overhead line
14. Impact of a revamped steel plant on the AC network
15. Impact of a new steel plant on the AC network - harmonics filtering
16. Tank temperature verification, tests vs service conditions
17. Failure investigation for a photovoltaic plant
18. Effect of a 100 MVA UPFC on distance protections operation
19. Lightning performance of overhead lines
20. Inductive coordination study for HVDC link
Integrated Services / Electromagnetic Services/General 22

23. CONTENT OVERVIEW
INTEGRATED SERVICES
1. About us
2. Integrated Services
3. Case studies
4. Conclusions
Integrated Services / Electromagnetic Services/General 23

24. INTEGRATED SERVICES
Conclusions
Get full advantages of our different services to:
• Meet the design and operation challenges imposed by the market
• Increase your margins but not your risks
• Leverage knowledge integration among power systems, power
electronics and transformer expertise
Be more competitive!
Integrated Services / Electromagnetic Services/General 24

25. INTEGRATED SERVICES
Thank you for your attention
Please visit our specific website
www.weidmanntech.com
Integrated Services / Electromagnetic Services/General 25