JB/T 7565-1999 Technical Specifications for YB2 Series Flameproof Three-Phase Asynchronous Motors (Frame Size 63-355) JB/T7565-1999 Standard Download Decompression Password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
YB2 series flameproof three phase asynchronous motor
Technical conditions (frame size 63~355)
Specification of YB2 series flameproof three phase asynchronous motor (frame size 63 to 355) JB 75651999
Replaces ZBK25002-89
ZBK25005-90
JB7565-94
This standard specifies the type, basic parameters and dimensions, technical requirements, test methods and inspection rules, as well as marking and packaging requirements of YB2 series flameproof three phase asynchronous motors. This standard is applicable to YB2 series flameproof three phase asynchronous motors (frame size 63~355) (hereinafter referred to as motors) used in underground coal mines (non-mining working faces) and factories containing explosive gas mixtures. All series of motors derived from this series of motors can also be implemented as a reference.
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When the standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB191 — 1990 | | tt | t||GB 3836.2—1983
GB/T 4772.1—1984
GB/T4942.1—1985
GB/T10068.1—1988
GB/T10069.1—1988
JB/T 8680.1—1998
JB/T 9615.1—1999
Packaging, storage and transportation pictorial symbols
Basic technical requirements for rotating electrical machines (negIEC60034—1: 1983) Motor structure and installation type code (negIEC60034—7) Three-phase asynchronous motor test method
Rotating electrical machine cooling method (eqvIEC60034—6: 1991) Basic environmental test procedures for electrical and electronic products Test Db: Alternating damp heat test method (eqvIEC60068—2—30: 1980 second edition) Electrical equipment for explosive gas environments Equipment Part 1: General requirements Electrical apparatus for explosive gas atmospheres Part 2: Flameproof "d\" motor dimensions and tolerances Motors with frame sizes 36~400 and flange numbers FF55~FF1080 or FT55~FT1080 (neqIEC60072-1:1971) Motor enclosure protection classification (eqvIEC60034-5:1981) Vibration measurement method and limit value of rotating motor Vibration measurement method (neqIEC60034-14:1986) Noise measurement method and limit value of rotating motor Noise engineering measurement method (neqISO1 680:1986) Technical requirements for three-phase asynchronous motors Part 1: Y2 series (IP54) three-phase asynchronous motors (frame size 63~355)
Test methods for insulation of scattered windings of AC low-voltage motors Approved by the State Bureau of Machinery Industry on August 6, 1999 and implemented on January 1, 2000
Types, basic parameters and dimensions
JB7565-1999
3.1 The motor shall be flameproof in accordance with the provisions of GB3836.2, and its explosion-proof mark shall be dI, dIIAT4, dIIBT4 (see G B3836.1). 3.2
The enclosure protection grade of the motor is IP55 (see GB/T4942.1). 3.3The cooling method of the motor is IC411 (see GB/T1993). 3.4
The structure and installation type of the motor are IMB3, IMB5, IMB6, IMB7, IMB8, IMB14, IMB34, IMB35, IMV1, IMV3, IMV5, IMV6, IMV15, IMV18 and IMV36 (see GB/T997), and they are manufactured according to the provisions of Table 1. Table 1
Machine frame number
132-160
180~280
315~355
Structure and installation code (IM)
B3, B5, B6, B7, B8, B14, B34, V1, V3, V5, V6, V18B3, B5, B6, B7,
B 14、B34、B35、V1、V3、V5、V6、V15、V18、V36B3、B5、B6、B7、B8、B35、V1、V3、V5、V6、V15、V36B3、B5、B35、V1
B3、B35、V1
The motor rating is the continuous rating based on the continuous duty system (S1). 3.5
3.6 The rated frequency of the motor is 50Hz, and the rated voltage is 380, 660, 380/660V. Note: The rated voltage of motors of 3kW and below is 380V. 3.7
The motor shall be manufactured according to the following rated powers: 0.12, 0.18, 0.25, 0.37, 0.55, 0.75, 1.1, 1.5, 2.2, 3, 4, 5.5, 7.5, 11, 15, 18.5, 22, 30, 37, 45, 55, 75, 90, 110, 132, 160, (185), 200, (220), 250, (280), 315kW. Note: The specifications in brackets are not recommended.
3.8 The corresponding relationship between the motor frame number and the speed and power shall be in accordance with the provisions of Table 2. Table 2
Frame number
Frame number
The specifications in brackets are not recommended.
JB 75651999
Table 2 (Complete)
Synchronous Rotation
The numbers 1 and 2 after 2S, M, and L represent different powers under the same frame size and speed. 3.9 Motor Dimensions and Tolerances
3.9.1 The installation dimensions and tolerances of the motor shall comply with the provisions of Tables 3 to 7; the overall dimensions shall not exceed the provisions of Tables 3 to 7. See Figures 1 to 5 for dimension symbols.
JB7565-1999
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3.9.2The dimensions and tolerances of the motor shaft extension key shall comply with the provisions of Table 8. JB7565-1999
The dimensions and tolerances of the motor shaft extension key shall comply with the provisions of Table 8. 3.9.2
Shaft extension diameter
10.-0.036
20 -0.052
The radial runout tolerance at half the shaft extension length shall comply with the provisions of Table 9. 3.9.3wwW.bzxz.Net
Axle diameter D
10
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