GB/T 20549-2006
Replaced
GB/Z 17626.40-2025
Active
National standards
GB/Z 17626.40-2025 Electromagnetic compatibility—Testing and measurement techniques—Part 40:Digital methods for the measurement of power quantities of modulated or distorted signals
GB/Z 17626.40-2025 Electromagnetic compatibility—Testing and measurement techniques—Part 40:Digital methods for the measurement of power quantities of modulated or distorted signals
Price:
$ 102
Basic Information
Standard Code:
GB/Z 17626.40-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Electromagnetic compatibility
ICS Name:
\nElectromagnetic compatibility integration
Publish Date:
2025-12-03
Implement Date:
1970-01-01
Pages:
36 pages
Scope
This document is a guidance technical document involving the evaluation of electrical quantities (RMS values of voltage, RMS values of current, and active power). The document explains and compares two digital algorithms suitable for measuring electrical quantities of fluctuating or non-periodic loads. These examples are from 50 Hz or 60 Hz power systems. This document does not attempt to cover all possible digital methods for evaluating the electrical quantities of fluctuating loads, such as the electromagnetic compatibility (EMC) evaluation described in several previous IEC documents. Instead, it compares average algorithms with one of the filtering algorithms. The aim of this document is to highlight some application examples to illustrate the working principles of the algorithms described. In addition, it provides guidance for quantifying the accuracy of each method.
Development Information
Same series standard
GB/T 17626.9-2025 Electromagnetic compatibility—Testing and measurement techniques—Part 9:Impulse magnetic field immunity test
GB/Z 17626.32-2025 Electromagnetic compatibility—Testing and measurement techniques—Part 32:High-altitude electromagnetic pulse(HEMP) simulator compendium
GB/Z 17626.35-2025 Electromagnetic compatibility—Testing and measurement techniques—Part 35:HPEM simulator compendium
Referenced Standards
IEC TR 61000-1-7:2016
Adopt standards
IEC TR 61000-4-40:2020
Related Standards
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Active
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Replaced
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GB/T 30556.7-2014
Active
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GB/Z 30556.3-2017
Active