GB/T 25122.1-2018Railway applications -- Power converters installed on board rolling stock -- Part 1: Characteristics and test methods (English PDF)

Foreword

GB/T 25122 "Power converter for rail transit vehicles" is divided into five parts.

--- Part 1. Characteristics and test methods;

--- Part 2. Supplementary technical information;

--- Part 3. Locomotive traction converters;

--- Part 4. Electric vehicle unit traction converter;

--- Part 5. Urban rail vehicle traction converter.

This part is the first part of GB/T 25122.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

This part replaces GB/T 25122.1-2010 "Power converters for rail transit vehicles - Part 1. Characteristics and test methods

law". Compared with GB/T 25122.1-2010, the main technical changes are as follows.

--- Revised the scope of application (see Chapter 1, Chapter 1 of the.2010 edition);

---Modified normative references, such as GB/T 311.1, GB/T 25123.4, GB/T 32347.1 and

GB/T 32350.1, deleted GB/T 19001-2000 (see Chapter 2, Chapter 2 of the.2010 edition);

---Modified terms and definitions. Add 5 terms and definitions, delete 21 terms and definitions, and carry out the remaining terms and definitions.

Corresponding adjustments (see Chapter 3, Chapter 3 of the.2010 edition);

--- Revised the requirements for nameplate information (see 4.1.2.1, 4.1.2.1 of the.2010 edition);

--- Removed the reliability calculation method and the agreed service life of the converter at the time of bidding (see 4.1.4.1 of the.2010 edition,

4.1.5);

--- Revised the requirements for use conditions (see 4.2, version 4.2 of.2010);

--- Removed restrictions on parking in the library (see version 4.2.3.2 of.2010);

---Modified the requirements of the main characteristics of DC network voltage (see 4.2.7.3.1, 4.2.7.3.1 of.2010 edition);

--- Modified the compatibility of converters, rolling stock and power supply systems (see 4.2.8,.2010 version 4.2.8);

--- Revised the detailed requirements of the rail transit operation department for signal system interference (see 4.2.8.4,.2010 edition 4.2.8.4);

--- Increased the requirement for a noise test distance of 1 m (see 4.2.10.1);

---Modified the main body of the noise level of the converter when loading (see 4.2.10.1,.2010 edition of 4.2.10.1);

--- Revised the quality system requirements (see 4.3.1.2, 4.3.1.2 of the.2010 edition);

--- Modified converter test items. if increased visual inspection, marking inspection, leakage test, dielectric strength test, insulation resistance test

Inspection and light load test as type inspection items; removal of air filter effectiveness inspection items and methods; partial discharge test

The quantity test was moved to the component test and the content of 60Hz was added; the network voltage jump test and the short-term power supply interruption test were modified.

Selection test; (see Table 3, 4.5.3.20, 4.5.3.21, 4.5.2.2.2,.2010 edition of Table 3, 4.5.3.5.4, 4.5.3.17, 4.5.3.21

4.5.3.22);

--- Removed all test items from the test site requirements (see Table 3 to Table 6 of the.2010 edition); power loss measurement method, clear

Converters not suitable for this method (see 4.5.3.14, 4.5.3.12 of.2010 edition);

--- Modified the short-term interruption test method of power supply, which can be replaced by calculation (see 4.5.3.21, 4.5.3.22 of.2010 edition);

--- Revised the dielectric strength test, insulation resistance test content (see 4.5.3.7, 4.5.3.8, 4.5.3.16, 4.5.3.15 of the.2010 edition);

--- Modified the temperature rise test method, such as adding indirect temperature measurement, and enumerating the typical way of direct measurement (see 4.5.3.13,

1 Scope

This part of GB/T 25122 specifies the terms and definitions, conditions of use, general characteristics and inspection of power converters for rolling stock.

method.

This section applies to the power supply for the traction circuits and auxiliary circuits (power vehicles, buses and trailers) of rail vehicles.

Streamer.

This section can also be applied to power converters of other traction vehicles (such as trolley buses, etc.).

This section applies to complete converter units and their configuration, including.

---Semiconductor device components;

---Integrated cooling system;

---Integrated components including inductors, capacitors, transformers, resistors, contactors, switches;

---Semiconductor drive unit (SDU) and related sensors;

---protect the circuit.

This section contains the following types of power supplies.

---AC contact network;

---DC contact net;

--- Vehicle power supply (such as generators, batteries and other power supplies).

This section does not apply to converters that provide electrical control power to semiconductor drive units (SDUs) and to operate in relation to converters.

A converter powered by his device (such as a sensor).

Note 1. The electronic control unit of the converter, the sensor independent of the semiconductor drive unit (SDU) and the printed circuit board assembly of the semiconductor drive unit (SDU) are

Stipulated in GB/T 25119.

Note 2. This section does not apply to the combined test of a complete traction system or an auxiliary power supply system. For example, a combined test of a motor powered by a converter is

Stipulated in GB/T 25117.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 311.1-2012 Insulation coordination Part 1. Definitions, principles and rules (IEC 60071-1.2006, MOD)

GB/T 1094.10-2003 Part 10. Determination of sound level (IEC 60076-10.2001, MOD)

GB/T 1402 rail transit traction power supply system voltage (GB/T 1402-2010, IEC 60850.2007, MOD)

GB/T 2900.33-2004 Electrotechnical terminology power electronics technology (IEC 60050-551.1998, IDT)

GB/T 2900.36-2003 Electrotechnical terminology electric traction (IEC 60050-811.1991, MOD)

GB/T 4208 enclosure protection grade (IP code) (GB/T 4208-2017, IEC 60529.2013, IDT)

GB/T 4798.5 Environmental conditions for application of electric and electronic products - Part 5. Use of ground vehicles (GB/T 4798.5-2007,

IEC 60721-3-5.1997, MOD)