Skip to product information
1 of 8

PayPal, credit cards. Download editable-PDF and invoice in 1 second!

GB/T 25123.1-2018 English PDF (GBT25123.1-2018)

GB/T 25123.1-2018 English PDF (GBT25123.1-2018)

Regular price $700.00 USD
Regular price Sale price $700.00 USD
Sale Sold out
Shipping calculated at checkout.
Quotation: In 1-minute, 24-hr self-service. Click here GB/T 25123.1-2018 to get it for Purchase Approval, Bank TT...

GB/T 25123.1-2018: Electric traction -- Rotating electrical machines for rail and road vehicles -- Part 1: Machines others than electronic convertor-fed alternating current motors

GB/T 25123.1-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.280
S 35
Replacing GB/T 25123.1-2010
Electric traction - Rotating electrical machines for rail and
road vehicles - Part 1: Machines others than electronic
convertor-fed alternating current motors
(IEC 60349-1:2010, MOD)
ISSUED ON: JUNE 07, 2018
IMPLEMENTED ON: JANUARY 01, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 7
3 Terms and definitions ... 8
4 Environmental conditions ... 15
5 Characteristics ... 15
6 Marking ... 18
7 Inspection rules ... 18
8 Type inspections ... 23
9 Exit-factory inspections ... 37
Annex A (normative) Supply voltages of traction systems ... 47
Annex B (informative) Noise measurement and limits ... 48
Annex C (informative) Methods of determining losses and efficiency ... 59 Annex D (normative) Measurement of temperature ... 72
Annex E (informative) Agreement between user and manufacturer ... 76
Bibliography ... 78
Foreword
GB/T 25123 "Electric traction - Rotating electrical machines for rail and road vehicles" consists of the following parts:
- Part 1: Machines others than electronic convertor-fed alternating current motors; - Part 2: Electronic convertor-fed alternating current motors;
- Part 3: Determination of the total losses of convertor-fed alternating current motors by summation of the component losses;
- Part 4: Permanent magnet synchronous electrical machines connected to an electronic converter.
This Part is Part 1 of GB/T 25123.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part replaces GB/T 25123.1-2010 "Electric traction - Rotating electrical machines for rail and road vehicles - Part 1: Machines other than electronic convertor-fed alternating current motors". Compared with GB/T 25123.1-2010, the main technical changes in this Part are as follows:
- Add "Further tests can be selected according to GB/T 25117.2. To avoid duplication, some type inspections and research tests can be carried out on the combined test bed." (see 1.1 of this Edition);
- Modify the regulations for altitude and ambient temperature. In Clause 4, altitude and ambient temperature, etc., are changed from the original direct regulations to according to GB/T 32347.1-2015 (see Clause 4 of this Edition, Chapter 4 of Edition 2010);
- Modify the name of the insulation class and change it to the thermal classification of the insulation system. Add number to each class to express, for example, 130(B), 155(F), 180(H) (see 8.1.4, 8.1.5 of this Edition, 8.1.4, 8.1.5 of Edition 2010);
- Modify the content of traction motor limits. Since in GB/T 10068-2008, the limit value of vibration velocity has changed, so for the limit value of traction motor, this Part is directly stipulated in 8.8. In this 8.8, the longitudinal vibration velocity content of the motor without fixed bearing structure is not assessed (see 8.8 of this Edition, 8.8 of Edition 2010);
- Modify the reference documents in the annex. GB/T 755.2 in Annex C is replaced by GB/T 25442 (see C.1, C.6.1 of this Edition, B.1, B.6.1 of Edition 2010); - Modify the optional methods and standards for noise measurement (see B.1 of this Edition, C.1 of Edition 2010).
This Part uses redrafting method to modify and adopt IEC 60349-1:2010 "Electric traction - Rotating electrical machines for rail and road vehicles - Part 1: Machines other than electronic converter-fed alternating current motors".
Compared with IEC 60349-1:2010, this Part has certain adjustments in structure. The specific adjustments are as follows:
- Modify the serial number of the article in Chapter 1 and add the title of the article; - Delete B.7 and adjust its content to the Bibliography;
- Modify the serial numbers of the clauses in Annex E. Adjust E.1, E.2, E.3 to Table E.1;
- Modify the appendix number. Annex A is adjusted to Annex D, Annex B to Annex C, Annex C to Annex B, and Annex D to Annex A.
There are technical differences between this Part and IEC 60349-1:2010. Terms covered by these differences are indicated by a single vertical line (|) in their outer margins. The specific technical differences and their reasons are as follows: - Regarding the normative references, this Part has adjusted with technical differences to adapt to the technical conditions of China. The adjustments are reflected in Chapter 2 "Normative references". The specific adjustments are as follows:
• Use GB/T 755 that identically adopts IEC 60034-1 to replace IEC 60034-1 (see Chapter 4);
• Use GB/T 1971 that identically adopts IEC 60034-8 to replace IEC 60034-8 (see 6.2);
• Use GB/T 11021 that identically adopts IEC 60085 to replace IEC 60085 (see 8.1.4);
• Use GB/T 28028 that modifies IEC 60638 to replace IEC 60638 (see 8.3.1); • Use GB/T 32347.1-2015 that modifies IEC 62498-1:2010 to replace IEC 62498- 1:2010 (see Chapter 4);
• Add GB/T 1402, GB/T 2900.25, GB/T 2900.36, GB/T 2900.74, GB/T 2900.83, GB/T 10068, GB/T 25117.2 as references. Delete the corresponding standard in the Bibliography (see 1.1, Chapter 3, 8.8 and Annex A).
- Modify the definition for short-time overload rating. Correct the errors in IEC 60349-1:2010. The test method is changed from Annex A to the requirements of 8.1.5 (see 3.1.4);
- Modify the environmental conditions. Altitude and temperature are quoted from GB/T 32347.1-2015, meeting the requirements of China's national conditions (see Chapter 4);
- Add the footnote in Table 2, so as to conform to the actual situation in China (see 8.1.4).
This Part has made the following editorial changes:
- Add the table note "Other measurement methods and limit values shall be determined through negotiation between the supplier and the purchaser." (see Table 2);
- Modify the title of Chapter 7 (see Chapter 7);
- Modify the format of Table 1 (see 7.2);
- Add "NOTE: Annex E gives the content of negotiation between the supplier and the purchaser" to lead to Annex E (see Chapter 9);
- Add the number of the formula (see Annex B, Annex C, Annex D);
- Modify the Bibliography (see Bibliography).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing authority shall not be held responsible for identifying any or all such patent rights.
This Part was proposed by National Railway Administration.
This Part shall be under the jurisdiction of National Technical Committee on Traction Electrical Equipment and Systems of Standardization Administration of China (SAC/TC 278).
The drafting organizations of this Part: CRRC Zhuzhou Electric Locomotive Co., Ltd., CRRC Yongji Electric Locomotive Co., Ltd., CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd., CRRC Zhuzhou Electric Locomotive Co., Ltd. Main drafters of this Part: Zhu Lixiang, Meng Yuling, Li Yifeng, Zhao Jiangnong, Tang Liu.
Version of standard substituted by this document is:
- GB/T 25123.1-2010.
Electric traction - Rotating electrical machines for rail and
road vehicles - Part 1: Machines others than electronic
convertor-fed alternating current motors
1 Scope
1.1 Overview
This Part of GB/T 25123 specifies the rotating electrical machines for electrically propelled rail and road vehicles (hereinafter referred to as vehicles), other than AC motors powered by electronic converters.
The purpose of this Part is to confirm the performance of the motor by testing, provide a basis for evaluating the adaptability of the motor to a specified load and compare it with other motors.
Further tests can be selected according to GB/T 25117.2. To avoid duplication, some type inspections and research tests can be carried out on the combined test bed. NOTE 1: This Part also applies to machines installed on trailers hauled by electrically propelled vehicles.
NOTE 2: The basic requirements of this Part may be applied to rotating electrical machines for special purpose vehicles (such as mine locomotives), but it does not cover flameproof or other special features that may be required.
NOTE 3: It is not intended that this Part should apply to machines on small road vehicles (such as battery-fed delivery vehicles, works trucks, etc.). Neither does it apply to minor machines such as windscreen wiper motors, etc. that may be used on all types of vehicles. NOTE 4: Industrial type machines complying with the IEC 60034 series may be suitable for certain auxiliary applications.
1.2 Electrical inputs or outputs of machines
The electrical inputs or outputs of machines in this Part may have the following forms: a) direct current (including rectified polyphase alternating current);
b) pulsating current (rectified single-phase alternating current);
c) unidirectional chopper-controlled current;
4 Environmental conditions
Unless otherwise specified by the user, the following environmental conditions are assumed in this Part:
a) The altitude is in accordance with Class G1.4 specified in GB/T 32347.1-2015. b) The temperature in the shade is according to GB/T 32347.1-2015. According to the application area of the product, the corresponding Class T1 level or T2 is adopted.
When the motor needs to operate beyond one or two of the above limit values, its special requirements can be determined through negotiation between the supplier and the user, see GB/T 755.
If the motor needs to be used in harsh conditions, such as dust, humidity, temperature, snow, impact, etc., the user should notify the manufacturer.
5 Characteristics
5.1 General
Machine specifications shall, as a general rule, include characteristic curves in accordance with the following subclauses. These curves, defined as the "specified characteristics", shall be plotted up to the designed operating limits of each variable. When the first few machines of a type have been tested, "declared characteristics" shall be produced from the results in accordance with 8.2.
Unless otherwise agreed, the declared characteristics of machines electromagnetically identical with any previously manufactured for the same user or application shall be those of the existing machines, in which case compliance with the characteristics shall be demonstrated by exit-factory inspections only.
5.2 Reference temperature
All characteristics, irrespective of the thermal class of insulation system used on the machine to which they apply, shall be drawn for a winding reference temperature of 150°C which shall be stated on the characteristics.
5.3 Efficiency characteristics
Efficiency characteristics shall take account of losses in external resistances normally included in either the main or excitation circuits. Any power used in providing separate excitation shall be included in the losses unless otherwise accounted for (e.g., as an auxiliary load), in which case the omission shall be stated.
converters
The tests shall be carried out with the normal starting and protective gear and, in the case of a.c. motors, at the rated frequency.
Machines intended to operate on pulsating current or with pulse control shall be tested with supply conditions closely resembling those in service.
The motor shall be subjected to 5 successive starts at minimum voltage followed by five at maximum voltage with an interval of 2 min between starts. It shall be loaded so that the torque developed is approximately the same as when starting under service conditions.
The performance and supply capacities shall be as specified in 8.6.3.
8.7 Overspeed tests
Unless agreed otherwise, overspeed tests are type inspections only on machines other than commutator and wound rotor machines. Details of the tests are given in 9.4. 8.8 Vibration tests
The vibration of the machine undergoing type inspection shall be measured quantitatively. During the test, the machine can be simply placed on the test bed without any installation equipment. When the machine speed is lower than or equal to 3600 r/min, its vibration speed should be less than 3.5 mm/s. When the machine speed is higher than 3600 r/min, its vibration speed should be less than 5.25 mm/s. The axial vibration velocity of machine without axial positioning bearings may not be assessed.
Other situations shall be in accordance with the provisions of GB/T 10068. Measurements on variable speed machines shall be taken at a number of speeds covering the whole working range.
Vibration velocities in excess of the limiting values may arise from the resonances in the test mountings, in which case they shall be disregarded provided that they do not coincide with a discrete working speed and that the general level of velocity over the speed range is within limits.
Should such a resonance occur at a discrete working speed the test shall be repeated with an alternative mounting arrangement.
NOTE: The effect of externally generated vibrations on the machine is outside the scope of this Part. Reference should be made to GB/T 21563.

View full details