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EMI /EMC Testing

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Conducted Emission Test

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Conducted Emission  : Line Impedance Stabilization Networks (LISNs) are used to measure conducted emissions on power lines. The LISN draws power from the ordinary wall outlet and feeds this to the equipment under test (EUT). Any RF noise generated by the EUT is separated by the LISN and fed to the spectrum analyzer for measurement or […]

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Electrical Fast Transient(EFT) Test

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EFT – Electrical Fast Transient Test (Standard IEC 61000-4-4)  Electrical Fast Transients (EFT), also going by fast transients or bursts (EFT/B) are a series of quick high frequency pulses mainlycaused by arching (sparking). A common cause of power line transients occurs when an AC/DC connection is made or broken, equipment powered down, or circuit breakers switched. […]

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Electro Static Discharge(ESD) Test

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ESD(Electrostatic Discharge) (Standard IEC 61000-4-2) The ESD occurs when differently-charged objects are brought close together often creating a visible spark. yet it still be large enough to cause damage to sensitive electronic devices. Importance of ESD: Electrostatic Discharge can damage sensitive electronic devices, resulting in higher manufacturing costs, lower production yields, shorter product life and it reduce […]

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Radiated Emission Test (Spectrum analyzer)

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Radiated Emission Test(Spectrum analyzer)(Standard IEC 61000-6-3)  : A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. Spectrum analyzer test finds the amount of noise present in the measurement and […]

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Surge Test

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Surge(Standard IEC 61000-4-5)  Surge Test: Due to lightning or any external noise the 240 volts may varies till Kilo-Volts, in such situation the power cable and device should with stands and operate as normal TO control high voltages(surge) the device or equipment has diodes called TVS(transient voltage suppressor) or Metal Oxide Varistor (MOV), Which protect […]

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Voltage Dip and Voltage Drop Interrupting

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Voltage dip and Short interruption(Standard IEC 61000-4-11) Voltage dip: we are externally supplying sudden dip in voltages(not exceeding 240 V) is applied to the device (gradually supplying 240 – 175 V, 90 V ..)and check whether the device or motor withstands for varying voltages or not. Short interruption: here we make the input 240 Volts […]