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New HFG02

New Harmonics and Flicker Generator HFG02

Image shown is of an HFG02



(Please add a note in the comments box stating you are interested in the HFG02)

Available soon:

  • Stable load simulation
  • Injects harmonics and interharmonics to EN 61000-3-2 and flicker to EN 61000-3-3
  • Harmonic and flicker test modes, EUT modes
  • Dual supply operation
  • Independent power supply
  • Compact and portable


Downloads for this product:

HFG 02 Product Flyer

Test Instrumentation Range Brochure


The new Harmonics & Flicker Generator (HFG02) is our newest HFG product. It is a multi-function electronic load which has been designed with the purpose of verifying harmonic and flicker test equipment. It offers an easy and reliable way to externally check the performance of the measurement system to the EN/IEC 61000-3-2 harmonics and IEC/EN 61000-3-3 flicker standards. A reference source is particularly useful where there is little intuitive sense of the expected response and the tests rely on software control and calculation to produce a result.

The HFG02 provides a series of harmonic and flicker disturbances of a nominal but stable level. This allows the user to periodically verify their test equipment, helping maintain compliance with standards and laboratory quality procedures. Alternatively, due to its stability, it may be used as a transfer standard from a known calibrated test system.

The HFG02 is a standalone device that connects directly to the test equipment and simulates it under test (EUT), generating known repeatable levels of harmonic and flicker disturbance.


Stable load simulation•  Repeatable measurements for test system verification
Injects harmonics and interharmonics to EN 61000-3-2 and flicker to EN 61000-3-3•  Evaluation of test systems specifically to EN standards
Harmonic test modes• Steady-state harmonic-rich load current, representing a fixed load
• Harmonic-rich load currents fluctuating between two load conditions
• Interharmonic load currents at 5 Hz and 10 Hz rates
• Harmonic and interharmonic-rich load current
Flicker test modes• Fixed level of mains disturbance at 1 Hz rate
• Fixed level of mains disturbance at 8.33 Hz or 8.6 Hz rates
EUT modesSimulates waveforms generated by several different types of equipment:
• Half-wave rectifier
• Analogue dimmer
• Intermittent flicker
Compact and Portable• Comparisons between sites and environments
Dual supply operation• Automatically detects 115 Vac and 230 Vac systems and adjusts its output to match
• Test supply voltage and frequency indication
Independent power supply• Separate power supply to the HFG02, to avoid contamination of the test signals


  • Harmonics and flicker measurement systems: validation and verification
  • Reference source for:
    • Daily pre-test verification checks, if required by the accreditation authorities
    • Long-term performance monitoring of the test system
    • Comparison of different harmonics and flicker measurement systems


Frequency Range• 50 Hz, 60Hz
Output connector• 1.3 m captive lead with BS 1363 3-pin UK mains plug, for connection to test equipment. Adapters for EU and US style mains connectors included.
Dimensions• 330 mm × 320 mm × 170 mm
Weight • 8 kg
Power supply• 100 - 240 Vac, 50-60 Hz, 50 W (maximum)
Indicators• Test supply voltage
• Test supply frequency
• Test enabled
• Alarm (thermal overload, system error)
Harmonic current• Up to 40th harmonic: 50 Hz to 2 kHz (50 Hz), 60 Hz to 2.4 kHz (60 Hz)                      
Flicker disturbance• See Results Tables 


Standard Kit:


Part Number


Parts included

HFG02KIT01Standard HFG02 generator kit • HFG02 harmonic and flicker generator
  • CAL22 – measurement of harmonics, interharmonics and flicker generated
  • US and EU mains plug adapters
  • CDROM containing User Manual, Test Certificate and Tabulated Results

Manufacturer’s calibrations

CAL22   Measurement of harmonic and flicker disturbance generated:



Measurement of load current according to EN 61000-3-2 in Fixed, Fluctuating and Interharmonic modes. 

  Fundamental to 40th harmonic, 115 Vac/60 Hz and 230 Vac/50 Hz test supply.


 Measurements of short term flicker (Pst) made according to EN 61000-3-3 with
 disturbance at 1 Hz and 8.3/8.6 Hz rates. 115 Vac/60 Hz and 230 Vac/50 Hz test supply.

Typical output measurement results

Harmonics Disturbance

Flicker Disturbance (115 V, 60 Hz)

1.0 Hz0.451
8.6 Hz1.061
*note that actual Pst measured may depend on measurement equipment used

(230 V, 50 Hz)

1.0 Hz0.451
8.33 Hz1.095
*note that actual Pst measured may depend on measurement equipment used







A wholly owned subsidiary of the University of York, we have been successfully delivering EMC training courses, designing and selling test instrumentation for over 20 years.

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York EMC Services Ltd
Market Square
University of York
YO10 5DD

Tel: +44 (0) 1904 324440
Fax: +44 (0) 1904 324434