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BSI DD CLC/TS 60034-24:2011

BSI DD CLC/TS 60034-24:2011

$142.49

Rotating electrical machines – Online detection and diagnosis of potential failures at the active parts of rotating electrical machines and of bearing currents. Application guide

Published By Publication Date Number of Pages
BSI 2011 26
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This part of IEC 60034 is applicable to the on-line detection and diagnosis of failures at the active parts of multi-phase rotating electrical machines (induction and synchronous machines) and of bearing currents. The failure analysis includes:

  • interturn faults;

  • phase-to-phase short-circuits;

  • double earth faults and single earth faults of motors with earth connection of the star-point;

  • static and dynamic eccentricities;

  • cage imperfection or defects (e.g. broken bars or end-rings);

  • bearing currents.

This can be achieved by tools like search coils or other magnetic sensors or partly by the analysis of the terminal voltages and currents.

The detection of the following effects is excluded from the scope:

  • vibration (covered by ISO standards, e.g. ISO 10816 and ISO 7919);

  • partial discharge (covered by IEC 60034-27);

  • single earth-faults of motors without earth connection of the star-point;

  • core imperfection.

Also excluded are special methods applicable for specific applications only (e.g. turbo generators).

PDF Catalog

PDF Pages PDF Title
5 English
CONTENTS
6 INTRODUCTION
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Basis of the diagnosis
9 Table 1 – Most important magnetic fields in the air-gap of a three-phase cage induction motor with an integral slot stator winding under normal operating and fault conditions
11 5 Kinds of electrical signal analysis
5.1 General
5.2 Stator current/voltage analysis
12 5.3 Induced voltages of auxiliary turns embedded into the stator slots or other magnetic sensors sensing the air-gap flux
14 Table 2 – Diagnosis of failures at a cage induction motor, equipped with two identical auxiliary coil systems
15 5.4 Induced voltages of search coils collecting axial fluxes
5.5 Shaft voltage analysis
6 Bearing currents
17 Bibliography
24 5 Types d’analyses de signaux électriques
5.1 Généralités
5.2 Analyse des courants/tensions d’un stator

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BSI DD CLC/TS 60034-24:2011
$142.49