[Immagine logo societÓ]WEMES Consulting  

 

Consulenze e Servizi per l'Ingegneria - Wide Electrical and Mechanical for Engineering Service

Benvenuti - ITALIANO Chi siamo Welcome - ENGLISH Who we are Download Summary

Study and Projects

Home
Up
WEMES_SVC Technological presentation

Electrical Network Measurements, Study and Calculations referred to the PowerCompensation of the AC/DC EAF/LF furnaces in a Steelmaking Plant.

This company is represented by Dr. Alberto Fragiacomo, graduated with PhD in Physics.

He deeply knows the theoretical criteria of an SVC system and gives a support with measures to improve and optimize the system.

He has a significant experience in High voltage/Medium voltage/ PFC and SVC systems planning having experience of detailed engineering and tests/measurements, and commissioning regarding these kind of plants.

1. Measurements.

1.1. Measurements of harmonics, Powers Active/Reactive loads and analysis of the results (EAF-AC or EAF-DC and LF furnaces lines)

1.2. Analysis of the THD degree and RMS Voltage variation during operations with the new loads.

1.3. Measurement and analysis of the Sort-Circuit Power of the Electrical Power Supply incoming lines and secondary impedance of EAF-AC/DC arc furance.

2. Electrical Study.

2.1. Drafting of EAF-AC/DC working curves with Furnace Transformer

2.2. Better Melting points and profiles for TAP to TAP Heat optimum operations.

2.3.  Check of typical heat performance in terms of heat profile, power input, current level, refractory balance, electrode consumption and further key factors for melting

2.4. Calculus of the EAF-AC/DC Furnace Transformer working curves (Circle Diagram) per each Voltage range of the trafo, with filtered power factor correction SVC or Fixed Filters (with EAFs and LFs in operation).

3. EAF/LF optimizition

3.1. Drafting of AC/DC EAF working curves with Furnace Transformer

3.2. Formulation of the Reactance value for the Serial Reactor for an optimum operation.

3.3. Better Melting points and profiles for TAP to TAP Heat operations.

3.4. Calculus of the EAF Furnace Transformer working curves (Circle Diagram) per each Voltage Tap of the trafo, with filtered power factor correction SVC and taking All Tap Positions of the Series Reactors as parameter (with EAFs and LFs in operation).

4. Projects designs.

4.1. Design of the Static Var Compensator (SVC)

4.2. Design of the Fixed Filters Compensator (FC)

4.3. Design of the new Furnace Transformer

4.4. Design of the new Series Reactors

4.5. Design of the SVC for the EAF-AC/DC

4.6. Issue of relevant Technical Specification to inquire for Offers from Suppliers.

4.7. Technical evaluation of Offers.

4.8. Design of the Furnace transformer for the AC/DC EAF furnace

4.9. Design of the Series Reactors with the new Furnace transformer for the EAF-AC/DC

4.10. Issue of relevant Technical Specification to inquire for Offers from Suppliers.

5. Electrical Network Study.

5.1. Complete study of the electrical network connected to the Electrical Power Supplier grid (HV, MV)

5.2. Evaluation of the impact caused by the new loads on the MV kV distribution line (for instance, Load Flow, Harmonic Flow, Short-Circuit Currents).

6. Relaying.

6.1. System Relaying protection, Planning, Setting and Coordination (HV, MV, LV).

6.2. Single line of Furnace by HV step down transformer to LV high current secondary circuit.

 

 

 

Responsabile del coordinamento per l'Ingegneria: WEMES Consulting

Dr. in Physics Alberto Fragiacomo (Engineering Coordination Manager)

Via Rossini 31/A, I-30171 Mestre-Venezia (VE), ITALY;  Winter Local Time: GMT+1
Tel. :                                      Fax to email: +39 02 30132890
Mob.:  +39 347 2618940  ;   Email: wemes@wemes.it 
per informazioni sui servizi o consulenze inviateci il modulo di richiesta.
For information on  consulting services please send the Module of Requests.
Update the: 25 settembre 2013