MT/T 249-2019YBSD series flameproof mining type double speed three-phases asynchronous motor (English PDF)

Foreword

This standard was prepared in accordance with GB/T 1.1-2009 "Directives for

standardization - Part 1.Structure and drafting of standards".

This standard is a revision of MT/T 249-1997 "Flameproof mining type double speed

three-phase induction motors". It replaces MT/T 249-1997, from the date of

implementation.

Compared with MT/T 249-1997, the main changes in the technical content of this

standard are as follows.

- CHANGE the standard name into "YBSD series flameproof mining type double

speed three-phases asynchronous motor"; SPECIFY the scope of application of the

standard, as applicable to the scraper conveyor, belt conveyor, scraper loader for

the underground working face of coal mine AND other similar machinery driving

motors;

- EXPAND the power rating range of the electric motors to 1000/500 kW. ADD the

power classes of 132/50 kW, 160/45 kW, 160/100 kW, 525/263 kW, 600/300 kW,

700/350 kW, 855/430 kW, 1000/500 kW (see 3.2.5; 3.1.8 of the 1997 edition);

- IMPROVE the degree of protection of the overall structure of the motor, from IP44

to IP54 (see 3.1.2; 3.1.1 of 1997 edition);

- The temperature-rise limit of the stator winding of the motor is no longer required

to be degraded, according to the heat resistance level, BUT is changed to the

requirements of Chapter 8 of GB 755-2008 (see 4.7; 4.8 of the 1997 edition);

- CANCEL the number of no-load reversible starting tests of the motor (4.9 of the

1997 edition);

- CHANGE the requirements for the installation dimension and fit tolerance of the

motor to an informative appendix (see Appendix A; 3.1.9 ~ 3.1.15 of the 1997

edition).

This standard was proposed by China Coal Industry Association.

This standard shall be under the jurisdiction of the Technical Committee for

Standardization of Coal Mine Special Equipment in the Coal Industry.

Drafting organizations of this standard. Fushun Coal Mine Motor Manufacturing Co.,

Ltd., China Coal Science and Industry Group Shanghai Co., Ltd., Tiandi Technology

Co., Ltd. Shanghai Branch, Ningxia Northwest Junma Motor Manufacturing Co., Ltd.,

Henan Anyang Hua'an Coal Mine Motor Co., Ltd., Fenyi Hongda Coal Mine Motor

Manufacturing Co., Ltd.

1 Scope

This standard specifies the type and basic parameters, technical requirements, test

methods, inspection rules, marking, packaging, transportation, storage of YBSD series

flameproof mining type double speed three-phases asynchronous motor (hereinafter

referred to as motors).

This standard applies to the driving motors of scraper conveyors, belt conveyors,

scraper loader, other similar machinery in coal mine underground working face.

2 Normative references

The following documents are essential to the application of this document. For the dated

documents, only the versions with the dates indicated are applicable to this document;

for the undated documents, only the latest version (including all the amendments) is

applicable to this standard.

GB/T 191 Packaging - Pictorial marking for handling of goods

GB 755 Rotating electrical machines - Rating and performance

GB/T 1032-2012 Test procedures for three-phase induction motors

GB/T 1993 Cooling methods for rotating electrical machines

GB/T 2423.4 Environmental testing for electric and electronic products - Part 2.Test

method - Test Db. Damp heat, cyclic (12h + 12h cycle)

GB 3836.1-2010 Explosive atmospheres - Part 1.Equipment - General requirements

GB 3836.2-2010 Explosive atmospheres - Part 2.Equipment protection by

flameproof enclosures "d"

GB 3836.3-2010 Explosive atmospheres - Part 3.Equipment protection by increased

safety e

GB/T 4772.1 Dimensions and output series for rotating electrical machines - Part 1.

Frame numbers 56 to 400 and flange numbers 55 to 1 080

GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating

electrical machined (IP code) - Classification

GB 10068 Mechanical vibration of certain machines with shaft heights 56 mm and

higher-measurement evaluation and limits of vibration severity

GB/T 10069.1 Measurement of airborne noise emitted by rotating electrical

machines and the noise limits - Part 1.Method for the measurement of airborne

noise emitted by rotating electrical machines

3 Types and basic parameters

1 Scope... 5

2 Normative references... 5

3 Types and basic parameters... 6

4 Technical requirements... 7

5 Test methods... 14

6 Inspection rules... 16

7 Marking, packaging, transportation, storage... 18

Appendix A (Informative) Installation dimension and tolerance of YBSD series

flameproof mining type double speed three-phases asynchronous motor... 21

Foreword

This standard was prepared in accordance with GB/T 1.1-2009 "Directives for

standardization - Part 1.Structure and drafting of standards".

This standard is a revision of MT/T 249-1997 "Flameproof mining type double speed

three-phase induction motors". It replaces MT/T 249-1997, from the date of

implementation.

Compared with MT/T 249-1997, the main changes in the technical content of this

standard are as follows.

- CHANGE the standard name into "YBSD series flameproof mining type double

speed three-phases asynchronous motor"; SPECIFY the scope of application of the

standard, as applicable to the scraper conveyor, belt conveyor, scraper loader for

the underground working face of coal mine AND other similar machinery driving

motors;

- EXPAND the power rating range of the electric motors to 1000/500 kW. ADD the

power classes of 132/50 kW, 160/45 kW, 160/100 kW, 525/263 kW, 600/300 kW,

700/350 kW, 855/430 kW, 1000/500 kW (see 3.2.5; 3.1.8 of the 1997 edition);

- IMPROVE the degree of protection of the overall structure of the motor, from IP44

to IP54 (see 3.1.2; 3.1.1 of 1997 edition);

- The temperature-rise limit of the stator winding of the motor is no longer required

to be degraded, according to the heat resistance level, BUT is changed to the

requirements of Chapter 8 of GB 755-2008 (see 4.7; 4.8 of the 1997 edition);

- CANCEL the number of no-load reversible starting tests of the motor (4.9 of the

1997 edition);

- CHANGE the requirements for the installation dimension and fit tolerance of the

motor to an informative appendix (see Appendix A; 3.1.9 ~ 3.1.15 of the 1997

edition).

This standard was proposed by China Coal Industry Association.

This standard shall be under the jurisdiction of the Technical Committee for

Standardization of Coal Mine Special Equipment in the Coal Industry.

Drafting organizations of this standard. Fushun Coal Mine Motor Manufacturing Co.,

Ltd., China Coal Science and Industry Group Shanghai Co., Ltd., Tiandi Technology

Co., Ltd. Shanghai Branch, Ningxia Northwest Junma Motor Manufacturing Co., Ltd.,

Henan Anyang Hua'an Coal Mine Motor Co., Ltd., Fenyi Hongda Coal Mine Motor

Manufacturing Co., Ltd.

1 Scope

This standard specifies the type and basic parameters, technical requirements, test

methods, inspection rules, marking, packaging, transportation, storage of YBSD series

flameproof mining type double speed three-phases asynchronous motor (hereinafter

referred to as motors).

This standard applies to the driving motors of scraper conveyors, belt conveyors,

scraper loader, other similar machinery in coal mine underground working face.

2 Normative references

The following documents are essential to the application of this document. For the dated

documents, only the versions with the dates indicated are applicable to this document;

for the undated documents, only the latest version (including all the amendments) is

applicable to this standard.

GB/T 191 Packaging - Pictorial marking for handling of goods

GB 755 Rotating electrical machines - Rating and performance

GB/T 1032-2012 Test procedures for three-phase induction motors

GB/T 1993 Cooling methods for rotating electrical machines

GB/T 2423.4 Environmental testing for electric and electronic products - Part 2.Test

method - Test Db. Damp heat, cyclic (12h + 12h cycle)

GB 3836.1-2010 Explosive atmospheres - Part 1.Equipment - General requirements

GB 3836.2-2010 Explosive atmospheres - Part 2.Equipment protection by

flameproof enclosures "d"

GB 3836.3-2010 Explosive atmospheres - Part 3.Equipment protection by increased

safety e

GB/T 4772.1 Dimensions and output series for rotating electrical machines - Part 1.

Frame numbers 56 to 400 and flange numbers 55 to 1 080

GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating

electrical machined (IP code) - Classification

GB 10068 Mechanical vibration of certain machines with shaft heights 56 mm and

higher-measurement evaluation and limits of vibration severity

GB/T 10069.1 Measurement of airborne noise emitted by rotating electrical

machines and the noise limits - Part 1.Method for the measurement of airborne

noise emitted by rotating electrical machines

3 Types and basic parameters