IEC 60034-18-41:2014/AMD1:2019 PDF

Name: IEC 60034-18-41:2014/AMD1:2019 — Amendment 1 - Rotating electrical machines - Part 18-41: Partial discharge free electrical insulation systems (Type I) used in electrical rotating machines fed from voltage converters - Qualification and quality control tests
SKU: IEC 60034-18-41:2014/AMD1:2019
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Amendment 1 - Rotating electrical machines - Part 18-41: Partial discharge free electrical insulation systems (Type I) used in electrical rotating machines fed from voltage converters - Qualification and quality control tests

Название (английский):

IEC 60034-18-41:2014/AMD1:2019

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 25 июня 2019 г.
Издание:: IEC IS 60034 edition 1 version 1
ICS:: 29.160.01

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Описание (английский):

The contents of the corrigendum of December 2020 have been included in this copy.

Abstract

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Упомянутые в описании и другие стандарты IEC

Overview

IEC 60034-18-41:2014/AMD1:2019 is an amendment to the international standard that addresses partial discharge free electrical insulation systems (Type I) used in rotating electrical machines fed from voltage converters. Developed by the International Electrotechnical Commission (IEC) Technical Committee 2 on rotating machinery, this amendment provides updated qualification and quality control tests to ensure reliable operation of insulation systems under converter-fed conditions.

This document incorporates the December 2020 corrigendum and refines requirements related to test voltages, insulation classes, routine testing procedures, and environmental factors impacting partial discharge (PD) behavior. It reflects the latest industry consensus on insulation system performance to enhance the durability and safety of electric motors and generators used with modern power electronics.

Key Topics

Impulse Voltage Insulation Class (IVIC): Defines peak-to-peak voltage classes (A, B, C, D, S) for Type I insulation systems, assigned based on the machine’s rated voltage and converter feed. The IVIC guides the allowable terminal voltages and test voltages to ensure reliable insulation performance under converter-induced stress.

Partial Discharge (PD) Testing: Emphasizes the importance of routine PD tests during manufacturing. PD detection helps identify early insulation defects to prevent premature failure. The amendment recommends agreement between manufacturer and customer on PD test protocols and documentation.

Routine Withstand Voltage Tests: Sets mandatory minimum withstand voltage tests for all machines, with increased voltage levels for converter-fed machines according to their IVIC rating. Includes updated test voltage factors (TVF) and examples for 500 V rated machines, facilitating consistent quality control.

Environmental Factors Impacting PD Inception: Recognizes the effects of relative humidity and altitude (air density) on PD inception voltage (PDIV). Suggests applying enhancement factors during testing to account for real-world operating conditions and ensure insulation reliability.

New Terminology and Classifications: Introduces definitions for maximum allowable terminal voltage (UIVIC) and test voltage factor (TVF), clarifying voltage stress limits and testing parameters for converter-fed rotating machines.

Applications

Manufacturers of rotating electrical machines such as motors and generators designed for variable frequency drive (VFD) or voltage converter supply systems.

Quality control engineers involved in routine testing and acceptance of converter-fed machines, ensuring insulation integrity and compliance with IEC standards.

Design engineers developing electrical insulation systems that must withstand the increased electrical stresses imposed by modern power electronics.

Maintenance and testing professionals aiming to detect partial discharges early during production or in-service inspections to maximize machine lifespan.

Users and specifiers of rotating electrical machines seeking assurance of performance and reliability of insulation systems under converter-fed voltage conditions.

Related Standards

IEC 60034-1: Rotating electrical machines - Part 1: Rating and performance - Provides baseline test voltages and performance criteria for rotating machines, referenced for routine withstand voltage testing.

IEC 60034 series: General standards for rotating electrical machines, covering various insulation types, testing methods, and machine performance.

Electropedia and IEC Glossary: Authoritative sources for electrotechnical terminology aligning with terms defined in this amendment, supporting standard consistent usage.

Practical Benefits

Enhanced Insulation Reliability: By formalizing PD-free insulation system requirements and associated testing, the amendment supports machines that are more durable and robust against converter-induced electrical stress.

Improved Testing Consistency: Clear procedures for routine PD and withstand voltage tests with defined voltage classes and enhancement factors promote uniform quality control.

Adaptation to Modern Drives: Addresses the unique voltage stresses from power converters rather than traditional line-fed machines, enabling safer and optimized machine designs.

Environmental Adaptability: Incorporation of humidity and altitude effects in testing ensures machines operate reliably in diverse on-site environments worldwide.

IEC 60034-18-41:2014/AMD1:2019 is a critical resource for advancing the quality, safety, and performance of insulation systems in modern rotating electrical machines, particularly those integrated with variable-speed drives and converter technologies.

IEC 60034-18-41:2014/AMD1:2019 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Practical Benefits

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