High frequency recommended vocabulary
The European edition of the damped oscillatory wave test is used principally for equipment installed in or near high voltage and medium voltage switching installations, where each operation of a disconnector or circuit breaker produces a train of oscillatory transients on the station wiring. In European practice it is applied through the substation automation standards, through the standards for railway fixed power installations and through the generic industrial standard, each of which selects the appropriate level. The European text reproduces the three international frequency ranges of 100 kHz, 1 MHz and 3 MHz to 10 MHz together with the common-mode and differential-mode coupling networks, and it carries the foreword and annex that give it status under the directive. The highest range is reserved for equipment installed in gas insulated installations, and the test report must identify which range and which coupling mode were applied to each port.
The CA-CCC transducer plate is applied for the calibration of capacitive coupling clamp. It is designed in accordance with domestic and international standards including IEC 61000-4-4 and GB/T 17626.4.
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The CDN 416AFL8 is a coupling/decoupling network for unshielded asymmetric communication line of damped oscillatory wave. It complies with IEC 61000-4-12, IEC 61000-4-18, GB/T 17626.12 and GB/T 17626.18.
The CDN 418TH8 is a coupling/decoupling networks for damped oscillatory waves testing on unshielded symmetrical high-speed communication lines complies with IEC 61000-4-12, IEC 61000-4-18, GB/T 17626.12 and GB/T 17626.18.
The CDN 418CAN coupling/decoupling network is a professional device designed for immunity tests of damped oscillatory waves and ring waves on CAN/LIN lines.
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The DOS 300(1XXX) Slow Damped Oscillatory Wave Simulator is designed in accordance with IEC 61000-4-18 to simulate repetitive slow damped oscillatory phenomena caused by switching disconnectors occurring on power, control, and signal cables in HV/MV power systems, particularly caused by HV busbar switching.
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