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JB/T 12305.1-2015Specification of high efficiency high-voltage flameproof three-phase asynchronous motors - Part 1: YBX3 series (frame size 355 to 630) (English PDF)

高效率高压隔爆型三相异步电动机技术条件第1部分：YBX3系列高效率高压隔爆型三相异步电动机（机座号355～630）

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

October 10, 2015

Implementation date

March 1, 2016

Scope

JB/T 12305.1-2015 is the English-translated version of 高效率高压隔爆型三相异步电动机技术条件第1部分：YBX3系列高效率高压隔爆型三相异步电动机（机座号355～630）.

Part 1 of JB/T 12305, dated 2015, covers the YBX3 series of high-efficiency high-voltage flameproof three-phase asynchronous motors in frame sizes 355 to 630. It specifies the types, the basic parameters and dimensions, the technical requirements, the test methods and the inspection rules, together with marking, packing and the warranty period.

Motors derived from this series may be made with reference to the part. The Ministry of Industry and Information Technology issued it on 10 October 2015 and it entered into force on 1 March 2016.

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Document preview — JB/T 12305.1-2015

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Normative references
3 Type, basic parameters and dimensions
4 Technical requirements
5 Test methods
6 Inspection rules
7 Marking, packaging and warranty period
Figure 1 Diagram of the dimensions of the motor
Table 1 Correspondence between the frame number and the speed and power
Table 2 Mounting and overall dimensions and tolerances
Table 3 Dimensions and tolerances of the shaft extension key
Table 4 Radial run-out tolerances
Table 5 Parallelism tolerances
Table 6 Flatness tolerances
Table 7 Symmetry tolerances of the keyway
Table 8 Guaranteed values of the efficiency
Table 9 Guaranteed values of the power factor
Table 10 Guaranteed values of the ratio of locked rotor torque to rated torque
Table 11 Guaranteed values of the ratio of locked rotor current to rated current
Table 12 Tolerances on the guaranteed values of the electrical performance
Table 13 Root mean square value of the test voltage
Table 14 Limits of vibration severity expressed as displacement, velocity and acceleration (root mean square values)
Table 15 Maximum A-weighted sound power level at no load
Table 16 Test items
Table 17 Marking of the terminals

What this standard covers

This standard specifies the type, basic parameters and dimensions of YBX3 series of high efficiency and high pressure flameproof three-phase asynchronous motors, technical requirements, test methods, inspection rules and marking, packing and warranty period. This standard applies to YBX3 series of high efficiency high pressure flameproof three-phase asynchronous motor (frame number 355 ~ 630) (hereinafter referred to as motor). Where the series of motor-derived series of motors can also refer to the implementation.

Document data

Chinese classification (CCS): K25.

Estimated length of the Chinese original: 18,139 words.

3 Type, basic parameters and dimensions

4 Technical requirements

5 Test methods

6 Inspection rules

7 Marking, packaging and warranty period

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Similar standards

JB/T 12306.1-2015|JB/T 12881-2016|JB/T 12882-2016|JB/T 12308-2015|JB/T 12883-2016|JB/T 12884-2016

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