Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 60034-18-21:2013

BS EN 60034-18-21:2013

$198.66

Rotating electrical machines – Functional evaluation of insulation systems. Test procedures for wire-wound windings. Thermal evaluation and classification

Published By Publication Date Number of Pages
BSI 2013 52
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

IEC 60034-18-21:2012 gives test procedures for the thermal evaluation and classification of insulation systems used or proposed for use in wire-wound alternating current (a.c.) or direct current (d.c.) rotating electrical machines. The test performance of a candidate insulation system is compared to the test performance of a reference insulation system with proven service experience. The main technical changes with regard to the previous edition can be seen in the introduction of some basic statistical methods in the evaluation of comparative data. Moreover, the standard states a simpler use of different test procedures.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
10 INTRODUCTION
11 1 Scope
2 Normative references
3 General considerations
3.1 Reference insulation system
12 3.2 Test procedures
4 Test objects and test specimens
4.1 Construction of test objects
13 4.2 Verification of effects of minor changes in insulation systems
4.3 Number of test specimens
4.4 Quality control
4.5 Initial diagnostic tests
14 5 Test procedures
5.1 General principles of diagnostic tests
5.2 Ageing temperatures and sub-cycle lengths
Tables
Table 1 – Thermal classes
15 5.3 Methods of heating
Table 2 – Recommended temperatures and ageing sub-cycle exposure periods
16 5.4 Thermal ageing sub-cycle
6 Diagnostic sub-cycle
6.1 Conditioning sequence
6.2 Mechanical conditioning
17 6.3 Moisture conditioning
6.4 Voltage tests
6.5 Other diagnostic tests
18 7 Reporting and functional evaluation of data from candidate and reference systems
7.1 General
7.2 Determining qualification
7.2.1 Overview
Table 3 – Conditions for qualification of candidate system
19 7.2.2 Case A: Qualification for the same class temperature and same expected service life
7.2.3 Case B: Qualification for the same class temperature and a different expected service life
Figures
Figure 1 – Candidate system qualified for the same thermal class and the same expected service life
20 7.2.4 Case C: Qualification for a different class temperature and same expected service life
Figure 2 – Candidate system qualified for the same thermal class and different expected service life
21 7.2.5 Case D: Qualification for a different class temperature and different expected service life
Figure 3 – Candidate system qualified for a different class temperature and the same expected service life
22 7.2.6 Non-linearity of regression lines
7.2.7 Reduced evaluation
Figure 4 – Candidate system qualified for a different service life and different thermal class from the reference
23 8 Procedure 1: Motorette test procedure
8.1 General
8.1.1 Test object definition
8.1.2 Test procedure
8.2 Test objects
8.2.1 Construction of test objects
8.2.2 Number of test objects
8.2.3 Quality assurance tests
24 8.2.4 Initial diagnostic tests
8.3 Thermal ageing sub-cycle
8.3.1 Ageing temperatures and sub-cycle lengths
8.3.2 Means of heating
8.3.3 Ageing procedure
8.4 Diagnostic sub-cycle
8.4.1 General
8.4.2 Mechanical conditioning
8.4.3 Moisture conditioning
8.4.4 Voltage test
25 8.4.5 Other diagnostic tests
8.5 Analyzing, reporting and classification
9 Procedure 2: Motor test procedure
9.1 General
9.1.1 Test object definition
9.1.2 Test procedure
Table 4 – Test voltages
26 9.2 Test objects
9.2.1 Construction of test objects
9.2.2 Number of test objects
9.2.3 Quality assurance tests
9.2.4 Initial diagnostic tests
9.3 Thermal ageing sub-cycle
9.3.1 Ageing temperatures and sub-cycle lengths
9.3.2 Means of heating
27 9.3.3 Ageing procedure
9.3.4 Mechanical stresses during the thermal ageing sub-cycle
9.4 Diagnostic sub-cycle
9.4.1 Mechanical conditioning
28 9.4.2 Moisture conditioning
9.4.3 Voltage withstand test
9.4.4 Other diagnostic tests
29 9.5 Analyzing, reporting and classification
10 Procedure 3: Test procedure for stator windings in slots
10.1 General
10.1.1 Test object definition
10.1.2 Test procedures
10.2 Test objects
10.2.1 Construction of test objects
10.2.2 Number of test specimens
10.2.3 Quality assurance tests
10.2.4 Initial diagnostic tests
10.3 Thermal ageing sub-cycle
10.3.1 Ageing temperatures and sub-cycle lengths
30 10.3.2 Means of heating
10.3.3 Ageing procedure
10.4 Diagnostic sub-cycle
10.4.1 Mechanical conditioning
10.4.2 Moisture conditioning
10.4.3 Voltage withstand test
10.4.4 Other diagnostic tests
10.5 Analyzing, reporting and classification
31 11 Procedure 4: Test procedure for pole windings
11.1 General
11.1.1 Test object definition
11.1.2 Test procedures
11.2 Test objects
11.2.1 Construction of test objects
11.2.2 Number of test objects
11.2.3 Quality assurance tests
11.2.4 Initial diagnostic tests
11.3 Thermal ageing sub-cycle
11.3.1 Ageing temperatures and sub-cycle lengths
11.3.2 Means of heating
32 11.3.3 Ageing procedure
11.4 Diagnostic sub-cycle
11.4.1 Mechanical conditioning
11.4.2 Moisture conditioning
11.4.3 Voltage withstand test
33 11.4.4 Other diagnostic tests
11.5 Analyzing, reporting and classification
12 Procedure 5: Test procedure for rotor windings in slots
12.1 General
12.1.1 Test object definition
12.1.2 Test procedures
12.2 Test objects
12.2.1 Construction of test objects
34 12.2.2 Number of test specimens
12.2.3 Quality assurance tests
12.2.4 Initial diagnostic tests
12.3 Thermal ageing sub-cycle
12.3.1 Ageing temperatures and sub-cycle lengths
12.3.2 Ageing means
12.3.3 Ageing procedure
12.4 Diagnostic sub-cycle
12.4.1 Mechanical conditioning
12.4.2 Moisture conditioning
35 12.4.3 Voltage test
12.4.4 Other diagnostic tests
12.5 Analyzing, reporting and classification
36 Annex A (informative) Motorette construction (examples)
39 Figure A.1 – Components of motorette before final assembly
Figure A.2 – Completely assembled and varnished motorette
40 Figure A.3 – Manufacturing drawing of motorette frame
41 Annex B (informative) Models for windings on poles (examples)
42 Figure B.1 – Test fixture for random wire-wound field coil
Figure B.2 – Random wire-wound field coil mounted on the test fixture
43 Figure B.3 – Manufacturing drawing for simulating pole for random wire-wound field coil test fixture
44 Figure B.4 – Manufacturing drawing for simulated frame for random wire-wound field coil test fixture
45 Figure B.5 – Test fixture for precision wire-wound field coil
Figure B.6 – Precision wire-wound field coil mounted on the test fixture
46 Figure B.7 – Manufacturing drawing for simulated pole for precision wire-wound field coil test fixture
47 Figure B.8 – Manufacturing drawing for simulated frame for precision wire-wound
48 Annex C (informative) Equipment for moisture tests
49 Figure C.1 – Diagram illustrating basic principle of condensation chamber with cooled test objects
50 Figure C.2 – Cut away of condensation chamber with cooled test objects

Related products

BS EN 60034-18-21:2013
$198.66