IEEE 120-2023

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IEEE Master Test Guide for Electrical Measurements in Power Circuits (Approved Draft)

Published By	Publication Date	Number of Pages
IEEE	2023

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Description

Revision Standard – Active. The material submitted for the 2020 reinstatement of Working Group 120 is the basis for this updated version. To provide general guidelines intended to assist nonelectrical engineers and technicians involved in quality control, acceptance, and prototype testing where electrical instrumentation is the main tool for measuring, observing, or recording physical quantities is the basic approach for the new organization. The contributors strived to maintain the relevant and important knowledge that was previously carefully collected and update this as appropriate.

PDF Catalog

PDF Pages	PDF Title
1	IEEE Std 120™-2023 Front Cover
2	Title page
4	Important Notices and Disclaimers Concerning IEEE Standards Documents
8	Participants
9	Introduction
10	Contents
12	1. Overview 1.1 Scope 1.2 Purpose 1.3 Word usage 2. Normative references
13	3. Definitions, acronyms, and abbreviations 3.1 Definitions 3.2 Terms in general use in measurement
18	3.3 Measurement system
19	3.4 Instrument transformer ratio, phase angle, and correction
20	3.5 International System of Units (SI) 3.6 Acronyms and abbreviations
21	4. Safety
22	5. Ground and magnetic coupling 5.1 Grounding
27	5.2 Electric and magnetic coupling
34	6. Voltage and current measurements 6.1 Introduction
37	6.2 . Voltage measurements
43	6.3 Current measurements
47	6.4 Instrument transformers
57	7. Power, energy, and power factor 7.1 Power measurement
63	7.2 Energy measurements
65	7.3 Power factor and phase-angle measurement
66	8. Frequency measurements 8.1 Theoretical background
67	8.2 Possible problems in measurement
68	8.3 The phasor measurement unit
71	9. Impedance measurements 9.1 Description
72	9.2 Determination of impedance 9.3 Effective resistance
73	9.4 Effective reactance 9.5 General measurement problems and techniques
85	9.6 Standard resistors
87	9.7 Instrumentation
95	9.8 Ohmmeters 9.9 Applications
97	10. Calibration 10.1 General 10.2 Standardization of apparatus 10.3 Calibration of watthour meters 10.4 Polyphase meter calibration
98	10.5 Maintenance of measuring instruments 11. Big data
99	Annex A (informative)Bibliography
103	Annex B (informative)Frequency response of instrument transformers B.1 Voltage measurement
109	B.2 Current measurement
111	B.3 Frequency response compensation
112	B.4 Summary
113	Annex C (informative)Operating principles of measuring instrument C.1 General C.2 Waveform digitizing C.3 Measurement of average voltage and current C.4 Measurement of average absolute value
114	C.5 Measurement of peak value and quasi-peak value C.6 Phase-sensitive detector C.7 Square law devices and signal multipliers
118	Back cover