EDUCATIONAL OBJECTIVES
• Studying, putting into service, getting started and setting of the system
• Studying of harmonic filtering of orders 3 & 5 and the power factor
• Practical corrections of harmonics generated by a speed variator.
Unit on wheels consisting of passive filters used for studying the filtering of the third and fifth order
harmonics (and, as a result, the increase in the power factor) during the use of a speed controller
for an AC motor or apparatus with a diode-thyristor bridge with a capacitor filter. HARMOVAR
uses the industrial methods employed for decreasing the harmonic pollution generated by U/f-type
frequency converters or other pollutant receivers with third or fifth order harmonic currents (inverter,
switch mode power supply and discharge lamps). The passive filters found there have been specially
sized for optimal use and so that the LC-type filtering systems can be studied. They eliminate third
or fifth order harmonic currents and show the effect of the third order harmonic current on the neutral.
• The network analyser ref. 6830 (option on page 239) records the harmonic graph
• A switch on the front of the unit is used for activating or deactivating the H3 and H5 filters.
• Jumpers and double channel terminals are used for electrical measurements (current, voltage and
power), not only on the network side but also on the receiver side and in each filter.
FEATURES
• Operation on 230V single-phase network or 230V/400V three-phase network
• Fitted with induction coils and capacitors which have been specially calculated for optimum
filtering.
• Equipment sized under rated conditions for 1500W motor test bench controlled by frequency
converter.
• Compatible with our frequency converters (pages 95-98)
• Supports the max. effective line current: 15A/H3 max: 10A/H5 max: 5A
• Wiring consisting of 4mm safety leads
• Supplied with instructions for use and tutorials
• Easy to move, thanks to its wheels
• Dimensions: 450 x 450mm Height: 530mm - Weight: 73kg
• Studying, putting into service, getting started and setting of the system
• Studying of harmonic filtering of orders 3 & 5 and the power factor
• Practical corrections of harmonics generated by a speed variator.
Unit on wheels consisting of passive filters used for studying the filtering of the third and fifth order
harmonics (and, as a result, the increase in the power factor) during the use of a speed controller
for an AC motor or apparatus with a diode-thyristor bridge with a capacitor filter. HARMOVAR
uses the industrial methods employed for decreasing the harmonic pollution generated by U/f-type
frequency converters or other pollutant receivers with third or fifth order harmonic currents (inverter,
switch mode power supply and discharge lamps). The passive filters found there have been specially
sized for optimal use and so that the LC-type filtering systems can be studied. They eliminate third
or fifth order harmonic currents and show the effect of the third order harmonic current on the neutral.
• The network analyser ref. 6830 (option on page 239) records the harmonic graph
• A switch on the front of the unit is used for activating or deactivating the H3 and H5 filters.
• Jumpers and double channel terminals are used for electrical measurements (current, voltage and
power), not only on the network side but also on the receiver side and in each filter.
FEATURES
• Operation on 230V single-phase network or 230V/400V three-phase network
• Fitted with induction coils and capacitors which have been specially calculated for optimum
filtering.
• Equipment sized under rated conditions for 1500W motor test bench controlled by frequency
converter.
• Compatible with our frequency converters (pages 95-98)
• Supports the max. effective line current: 15A/H3 max: 10A/H5 max: 5A
• Wiring consisting of 4mm safety leads
• Supplied with instructions for use and tutorials
• Easy to move, thanks to its wheels
• Dimensions: 450 x 450mm Height: 530mm - Weight: 73kg
Properties
- HARMOVAR/ELE