Objective
To familiarise the attendee with the causes of harmonic disturbance, radio interference, common-mode noise and reflected wave; followed by the Danfoss solutions available to address / remedy these issues.
Who Should Attend
Anyone involved in design of systems with variable speed drives: Works Engineers, Building Consultants, HVAC systems builders, System Integrators, OEM’s designing VLT products into their products.
Content Harmonic Distortion Topics
Introduction
Meet the Training Engineer / Available Support Services
Danfoss.com – where to find free downloads and what is available
Manuals and certification for the product / String Codes
Harmonic Theory
What is Harmonic Distortion
Wave Theory, the “Harmonic Illustrator” and definition of harmonics
The causes of harmonic distortion and non-linear load examples
Effects of harmonic distortion on supply systems
The Law
G5/4 Compliance
Common Point of Coupling CPC and its importance
VLT®MCT31 Harmonic Calculation Software - Demonstration
Mitigation Techniques
12 Pulse and 18 Pulse AC Drives
Passive Filters
Active Filters
VLT® Low Harmonic Drives
Content EMC Topics
Introduction
Meet the Training Engineer / Available Support Services
Danfoss.com – where to find free downloads and what is available
Manuals and certification for the product / String Codes
Theory
What is EMC, RFI where does it come from?
PWM and the carrier/switching frequency
Effects of radio interference – the skin effect and mutual conductance
Radiated and conducted emissions and the law
Wave theory- propagation of an EM wave
Mitigation Techniques
Good practices for avoidance. cable runs, type, earthing practices
Real examples
Danfoss RFI Filters explained H1, H2, H3,H4
Common Mode Noise
What is common mode noise
Effects ofcommon mode noise
Danfoss solutions
Reflected Wave Theory
Motor / Bearing Damage
The use of dv/dtFilters versus Sine Wave Filters
Registration
The cost of participation in the VLT® Drive Training – Harmonic Distortion & EMC (Level 2 - Intermediate) is £250 per person (excluding VAT) and includes lunch, course folder and certificate. The training lasts from 09:00 until 16:00. The number of attendees required to run the course is 6 - 8.
For more information, please contact Mick Jennings on telephone 01895 617 037 or by email using the link below.