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EMC Test System For Civil Products
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- Electrostatic Discharge Immunity
- Radiated, radio-frequency,electromagnetic field immunity
- Electrical Fast Transient Burst Immunity
- Surge immunity
- Immunity To Conducted Disturbance Induced by Radio Frequency Field
- Power Frequency Magnetic Field Immunity
- Voltage dips, short interruptions and voltage variations immunity
- Harmonics and interharmonics including mains signalling at AC power port, low frequency immunity
- Voltage Fluctuation Immunity Test
- Common mode disturbances in the frequency range 0 Hz to 150 kHz Immunity
- Ripple on DC input power port immunity
- Three-phase Voltage Unbalance Immunity Test
- Power Frequency Variation Immunity Test
- Oscillatory Wave Immunity Test
- Damped Oscillatory Magnetic Field Immunity Test
- Differential mode disturbances immunity test
- DC power input port voltage dip, short interruption and voltage variations test
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Automotive Electronic EMC Test System
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- Electrostatic Discharge Immunity
- Electrical Transient Conducted Immunity
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Anechoic Chamber Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Transverse Wave (TEM) Cell Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-large Current injection (BCI) method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Stripline Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-direct Injection Of Radio Frequency (RF) Power
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Magnetic Field Immunity Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Portable Transmitter Simulation Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Conduction Immunity Method For Extended Audio Range
- High Voltage Electrical Performance ISO 21498-2 Test System
- High Voltage Transient Conducted Immunity (ISO 7637-4)
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- CE101(25Hz ~ 10kHz power line conduction emission)
- CE102(10kHz ~ 10MHz power line conduction emission)
- CE106(10kHz ~ 40GHz antenna port conducted emission)
- CE107 (Power Line Spike (Time Domain) Conducted Emission)
- RE101(25Hz ~ 100kHz magnetic field radiation emission)
- RE102(10kHz ~ 18GHz electric field radiation emission)
- RE103(10kHz ~ 40GHz antenna harmonic and spurious output radiated emission)
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- CS101(25Hz ~ 150kHz power line conduction sensitivity)
- CS102(25Hz ~ 50kHz ground wire conduction sensitivity)
- CS103(15kHz ~ 10GHz Antenna Port Intermodulation Conducted Sensitivity)
- CS104(25Hz ~ 20GHz antenna port unwanted signal suppression conduction sensitivity)
- CS105(25Hz ~ 20GHz antenna port intermodulation conduction sensitivity)
- CS106 (Power Line Spike Signal Conduction Sensitivity)
- CS109(50Hz ~ 100kHz shell current conduction sensitivity)
- CS112 (Electrostatic Discharge Sensitivity)
- CS114(4kHz ~ 400MHz cable bundle injection conduction sensitivity)
- CS115 (Conduction sensitivity of cable bundle injection pulse excitation)
- CS116(10kHz to 100MHz Cable and Power Line Damped Sinusoidal Transient Conduction Sensitivity)
- RS101(25Hz ~ 100kHz magnetic field radiation sensitivity)
- RS103(10kHz ~ 40GHz electric field radiation sensitivity)
- RS105 (Transient Electromagnetic Field Radiated Susceptibility)
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EMC Test System For Civil Products
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- Electrostatic Discharge Immunity
- Radiated, radio-frequency,electromagnetic field immunity
- Electrical Fast Transient Burst Immunity
- Surge immunity
- Immunity To Conducted Disturbance Induced by Radio Frequency Field
- Power Frequency Magnetic Field Immunity
- Voltage dips, short interruptions and voltage variations immunity
- Harmonics and interharmonics including mains signalling at AC power port, low frequency immunity
- Voltage Fluctuation Immunity Test
- Common mode disturbances in the frequency range 0 Hz to 150 kHz Immunity
- Ripple on DC input power port immunity
- Three-phase Voltage Unbalance Immunity Test
- Power Frequency Variation Immunity Test
- Oscillatory Wave Immunity Test
- Damped Oscillatory Magnetic Field Immunity Test
- Differential mode disturbances immunity test
- DC power input port voltage dip, short interruption and voltage variations test
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Automotive Electronic EMC Test System
-
- Electrostatic Discharge Immunity
- Electrical Transient Conducted Immunity
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Anechoic Chamber Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Transverse Wave (TEM) Cell Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-large Current injection (BCI) method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Stripline Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-direct Injection Of Radio Frequency (RF) Power
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Magnetic Field Immunity Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Portable Transmitter Simulation Method
- Immunity Test To Narrowband Radiated Electromagnetic Energy-Conduction Immunity Method For Extended Audio Range
- High Voltage Electrical Performance ISO 21498-2 Test System
- High Voltage Transient Conducted Immunity (ISO 7637-4)
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- CE101(25Hz ~ 10kHz power line conduction emission)
- CE102(10kHz ~ 10MHz power line conduction emission)
- CE106(10kHz ~ 40GHz antenna port conducted emission)
- CE107 (Power Line Spike (Time Domain) Conducted Emission)
- RE101(25Hz ~ 100kHz magnetic field radiation emission)
- RE102(10kHz ~ 18GHz electric field radiation emission)
- RE103(10kHz ~ 40GHz antenna harmonic and spurious output radiated emission)
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- CS101(25Hz ~ 150kHz power line conduction sensitivity)
- CS102(25Hz ~ 50kHz ground wire conduction sensitivity)
- CS103(15kHz ~ 10GHz Antenna Port Intermodulation Conducted Sensitivity)
- CS104(25Hz ~ 20GHz antenna port unwanted signal suppression conduction sensitivity)
- CS105(25Hz ~ 20GHz antenna port intermodulation conduction sensitivity)
- CS106 (Power Line Spike Signal Conduction Sensitivity)
- CS109(50Hz ~ 100kHz shell current conduction sensitivity)
- CS112 (Electrostatic Discharge Sensitivity)
- CS114(4kHz ~ 400MHz cable bundle injection conduction sensitivity)
- CS115 (Conduction sensitivity of cable bundle injection pulse excitation)
- CS116(10kHz to 100MHz Cable and Power Line Damped Sinusoidal Transient Conduction Sensitivity)
- RS101(25Hz ~ 100kHz magnetic field radiation sensitivity)
- RS103(10kHz ~ 40GHz electric field radiation sensitivity)
- RS105 (Transient Electromagnetic Field Radiated Susceptibility)
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Harmonic and Flicker
1. Introduction to the test
Due to the extensive use of switching power supplies in electronic products, while improving power supply efficiency, a large amount of harmonic current will be injected into the power grid due to nonlinear power conversion, which will not only interfere with other equipment in the same power grid, but also make the neutral line of the power grid Current overload affects power transmission capacity. In addition, the phase control of the power supply will also cause changes in the effective value current of the grid, resulting in fluctuations in the effective value voltage on the load side, causing the lights of lighting fixtures to flicker.
The harmonic test mainly measures the harmonics injected into the power grid when the EUT is working. In the harmonic measurement circuit, the test power supply S is an idealized AC power supply with the characteristics of small internal resistance, pure waveform, stable voltage and accurate frequency. Measuring equipment M is a discrete Fourier transform time-domain analysis instrument, which can analyze harmonic current values of 1-40th order.
The voltage fluctuation and flicker test mainly measures the change of grid voltage caused by EUT. The interference effect caused by the voltage change depends not only on the magnitude of the voltage change, but also on the frequency of its occurrence. The voltage change is usually evaluated by two indicators, namely voltage fluctuation and flicker. The voltage fluctuation indicator reflects the degree of sudden large voltage changes, while the flicker indicator reflects the continuous voltage changes over a period of time. In the voltage fluctuation and flicker circuit, the composition of the reference impedance Z (at 50Hz) of the power supply S: RA=0.24Ω, jXN=0.15Ω; RN=0.16Ω, jXN=0.10Ω.
Harmonic current measurement circuit | Voltage fluctuation and flicker test circuit |
2. System connection diagram - single phase 16A
3. Typical configuration - single phase 16A
Harmonic current/voltage flicker test system |
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serial number |
product |
illustrate |
brand |
1 |
EMTEST/ Switzerland |
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EMTEST/ Switzerland |
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CE test environment, including solid wood test table, insulation support, etc. |
Century Huize/China |
4. System connection diagram - three-phase 32A
5. Typical configuration - three-phase 32A
Harmonic current/voltage flicker test system |
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serial number |
product |
illustrate |
brand |
Three-phase harmonic flicker analyzer control software dpa.control |
EMTEST/ Switzerland |
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EMTEST/ Switzerland |
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Three-phase multifunctional programmable AC/DC power quality immunity simulator |
EMTEST/ Switzerland |
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CE test environment, including solid wood test table, insulation support, etc. |
Century Huize/China |