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BS EN IEC 60034-2-1:2024

BS EN IEC 60034-2-1:2024

$215.11

Rotating electrical machines – Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles)

Published By Publication Date Number of Pages
BSI 2024 100
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IEC 60034-2-1:2024 is available as IEC 60034-2-1:2024 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60034-2-1:2024 is intended to establish methods of determining efficiencies from tests, and also to specify methods of obtaining specific losses. This document applies to DC machines and to AC synchronous and induction machines of all sizes within the scope of IEC 60034-1 rated for mains operation. These methods may be applied to other types of machines such as rotary converters, AC commutator motors and single-phase induction motors. This third edition cancels and replaces the second edition of IEC 60034-2-1 published in 2014. This edition includes the following significant technical changes with respect to the previous edition: – Harmonization of layout and requirements with IEC 60034-2-2 and IEC 60034-2-3.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
6 English
CONTENTS
9 FOREWORD
11 1 Scope
2 Normative references
12 3 Terms and definitions
17 4 Symbols and abbreviated terms
4.1 Symbols
18 4.2 Additional subscripts
19 5 Basic requirements
5.1 Direct and indirect efficiency determination
5.2 Uncertainty
5.3 Preferred methods and methods for customer-specific acceptance tests, field-tests or routine-tests
20 5.4 Power supply
5.4.1 Voltage
5.4.2 Frequency
5.5 Instrumentation
5.5.1 General
5.5.2 Measuring instruments for electrical quantities
5.5.3 Torque measurement
21 5.5.4 Speed and frequency measurement
5.5.5 Temperature measurement
5.6 Units
5.7 Resistance
5.7.1 Test resistance
Figures
Figure 1 – Torque measuring devices
22 5.7.2 Winding temperature
5.7.3 Correction to reference coolant temperature
Table 1 – Reference temperature
23 5.8 State of the machine under test and test categories
24 5.9 Excitation circuit measurements
5.10 Ambient temperature during testing
6 Test methods for the determination of the efficiency of induction machines
6.1 Preferred testing methods
6.1.1 General
25 6.1.2 Method 2-1-1A – Direct measurement of input and output
Figure 2 – Sketch for torque measurement test
Tables
Table 2 – Induction machines: preferred testing methods
26 Figure 3 – Efficiency determination according to method 2-1-1A
27 6.1.3 Method 2-1-1B – Summation of losses, additional load losses according to the method of residual loss
28 Figure 4 – Efficiency determination according to method 2-1-1B
34 Figure 5 – Smoothing of the residual loss data
35 6.1.4 Method 2-1-1C – Summation of losses with additional load losses from assigned allowance
36 Figure 6 – Efficiency determination according to method 2-1-1C
37 Figure 7 – Vector diagram for obtaining current vector from reduced voltage test
38 Figure 8 – Assigned allowance for additional load losses PLL
39 6.2 Testing methods for field or routine-testing
6.2.1 General
40 6.2.2 Method 2-1-1D – Dual supply back-to-back-test
Figure 9 – Efficiency determination according to method 2-1-1D
Figure 10 – Sketch for dual supply back-to-back test
Table 3 – Induction machines: other methods
41 6.2.3 Method 2-1-1E – Single supply back-to-back-test
Figure 11 – Efficiency determination according to method 2-1-1E
42 6.2.4 Method 2-1-1F – Summation of losses with additional load losses determined by test with rotor removed and reverse rotation test
43 Figure 12 – Efficiency determination according to method 2-1-1F
46 6.2.5 Method 2-1-1G – Summation of losses with additional load losses determined by Eh-star method
47 Figure 13 – Efficiency determination according to method 2-1-1G
48 Figure 14 – Eh-star test circuit
50 6.2.6 Method 2-1-1H – Determination of efficiency by use of the equivalent circuit parameters
Figure 15 – Induction machine, T-model with equivalent iron loss resistor
51 Figure 16 – Efficiency determination according to method 2-1-1H
54 Figure 17 – Induction machines, reduced model for calculation
56 7 Test methods for the determination of the efficiency of synchronous machines
7.1 Preferred testing methods
7.1.1 General
Table 4 – Synchronous machines with electrical excitation: preferred testing methods
Table 5 – Synchronous machines with permanent magnets: preferred testing methods
57 7.1.2 Method 2-1-2A – Direct measurement of input and output
Figure 18 – Sketch for torque measurement test
Figure 19 – Efficiency determination according to method 2-1-2A
58 7.1.3 Method 2-1-2B – Summation of separate losses with a rated load temperature test and a short circuit test
59 Figure 20 – Efficiency determination according to method 2-1-2B
64 7.1.4 Method 2-1-2C – Summation of separate losses without a full load test
65 Figure 21 – Efficiency determination according to method 2-1-2C
66 7.2 Testing methods for field or routine testing
7.2.1 General
7.2.2 Method 2-1-2D – Dual supply back-to-back-test
Figure 22 – Efficiency determination according to method 2-1-2D
Table 6 – Synchronous machines: other methods
67 7.2.3 Method 2-1-2E – Single supply back-to-back-test
Figure 23 – Sketch for dual supply back-to-back test (IM = IG, fM = fG )
68 Figure 24 – Efficiency determination according to method 2-1-2E
Figure 25 – Single supply back-to-back test for synchronous machines
69 7.2.4 Method 2-1-2F – Zero power factor test with excitation current from Potier-, ASA- or Swedish-diagram
Figure 26 – Efficiency determination according to method 2-1-2F
73 7.2.5 Method 2-1-2G – Summation of separate losses with a load test without consideration of additional load losses
74 8 Test methods for the determination of the efficiency of DC machines
8.1 Testing methods for field or routine testing
Figure 27 – Efficiency determination according to method 2-1-2G
75 8.2 Method 2-1-3A – Direct measurement of input and output
8.2.1 General
Figure 28 – Sketch for torque measurement test
Table 7 – DC machines: test methods
76 8.2.2 Test procedure
8.2.3 Efficiency determination
Figure 29 – Efficiency determination according to method 2-1-3A
77 8.3 Method 2-1-3B – Summation of losses with a load test and DC component of additional load losses from test
8.3.1 General
78 8.3.2 Test procedure
Figure 30 – Efficiency determination according to method 2-1-3B
82 Figure 31 – Sketch for single supply back-to-back test for determination of DC component of additional load losses
84 8.4 Method 2-1-3C – Summation of losses with a load test and DC component of additional load losses from assigned value
8.4.1 General
85 8.4.2 Test procedure
Figure 32 – Efficiency determination according to method 2-1-3C
86 8.4.3 Efficiency determination
Table 8 – Multiplying factors for different speed ratios
87 8.5 Method 2-1-3D – Summation of losses without a load test
8.5.1 General
88 8.5.2 Test procedure
Figure 33 – Efficiency determination according to method 2-1-3D
89 8.5.3 Efficiency determination
90 8.6 Method 2-1-3E – Single supply back-to-back test
8.6.1 General
8.6.2 Test procedure
Figure 34 – Efficiency determination according to method 2-1-3E
Figure 35 – Sketch for single supply back-to-back test
91 8.6.3 Efficiency determination
92 Annex A (normative) Calculation of values for the Eh-star method
95 Annex B (informative) Types of excitation systems
96 Annex C (informative) Induction machine slip measurement
97 Figure C.1 – Slip measurement system block diagram
98 Annex D (informative) Test report template for method 2-1-1B
99 Bibliography

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