This standard specifies the form, basic parameters and dimensions, technical requirements, test methods and inspection rules of YD series (IP44) variable pole multi-speed motors, as well as requirements for marking, packaging and warranty period. This standard applies to YD series (IP44) variable pole multi-speed three-phase asynchronous motors (frame size 80 to 280) (hereinafter referred to as motors). JB/T 7127-1993 Technical conditions for YD series (IP144) variable pole multi-speed three-phase asynchronous motors (frame size 80 to 280) JB/T7127-1993 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T7127-1993
YD Series (IP144) pole-changing multi-speed three-phase asynchronous motor technical conditions (frame size 80 ~ 280)
1993-10-08 issued
Ministry of Machinery Industry of the People's Republic of China
1994-01-01 implementation
Machinery Industry Standard of the People's Republic of China
YD series (IP144) pole-changing multi-speed three-phase asynchronous motor technical conditions (frame size 80 ~ 280) bzxz.net
1 Subject content and scope of application
JB/T7127-1993
Replaces ZBK2600689
This standard specifies the type, basic parameters and dimensions, technical requirements, test methods and inspection rules of YD series (IP44) pole-changing multi-speed motors, as well as the requirements for marking, packaging and warranty period. This standard applies to YD series (IP44) variable pole multi-speed three-phase asynchronous motors (frame size 80~280) (hereinafter referred to as motors). Reference standards
Basic technical requirements for rotating electrical machines
GB4942.1Motor housing protection classification
GB1993
Motor cooling method
Motor structure and installation type code
Motor dimensions and tolerancesFrame size 36~400Flange number FF55~FF1080 or FT55~FT1080 motorsGB4772.1E
GB12665
GB10068
GB10069
GB1032|| tt||JB/Z294
JB/Z346
Wet heat test method for motors under normal environmental conditions Vibration measurement method and limit for rotating motors
Noise measurement method and limit for rotating motors
Test method for three-phase asynchronous motors
Packaging, storage and transportation pictorial symbols
Test method for insulation between turns of AC low-voltage motors with scattered windings Test limit for insulation between turns of AC low-voltage motors with scattered windings Type, basic parameters and dimensions
The enclosure protection level of the motor is IP44 (see GB4942.1). The cooling method of the motor is IC0141 (see GB1993). The structure and installation type of the motor are IMB3, IMB5, IMB6, IMB7, IMB8, IMB35, IMV1, IMV3, IMV5, 3.3
IMV6, IMV15, IMV36, (see GB997), compiled according to the provisions of Table 1. Table 1
Frame size
80~160
180225
250~280
Structure and
B3, B5, B6, B7, B8, B35, V1, V3, V5, V6, V15, V36B3, B5, B35, V1
B3, B35, V1
3.4 ​​The rating of the motor is a continuous rating based on the continuous working system (S1). 3.5 The rated frequency of the motor is 50Hz, and the rated voltage is 380V. 3.6 The motor changes speed by changing poles, and there are three types: two-speed, three-speed, and four-speed. The stator winding of the motor is a single set of windings at two speeds, and double sets of windings at three and four speeds. The connection method and number of output terminals of the stator winding for various speed ratios of the motor shall be in accordance with the provisions of Table 2. Approved by the Ministry of Machinery Industry on October 8, 1993
Implemented on January 1, 1994
Number of outlet terminals
Number of outlet terminals
1500/3000
1000/1500/3000
JB/T7127-1993
1000/1500
750/1500/3000
Y/A/YY
Step speed
750/1500| |tt||Step speed
750/1000/1500
A/Y/YY
750/1000
500/1000
500/750/1000/1500
A/A/YY/YY
Note: For motors with double windings for 250 and above frame, 10 outlet terminals are allowed for three speeds and 14 outlet terminals are allowed for four speeds. Their markings shall comply with the provisions of Article 6.3 of this standard.
The motor shall be manufactured according to the following rated powers. 3.7
0.35，0.45，0.55，0.65，0.75，0.85，1，1.1，1.3，1.5，1.8，2，2.2，2.4，2.6，2.8，3，3.3,3.7,4，4.5，5，5.5，6，6.5，7，7.5,8，9，10,11,12,13,14,15,16,17,18.5,20,22,24,26,28,30,32,34,37,40,42,45,47,50,52,55,60,67,72,82kw.
The correspondence between the motor frame number, speed ratio and power shall conform to the provisions of Table 3. Table 3
1500/30001000/1500
0.45/0.55
0.55/0.75
0.65/0.85
750/1500
750/1000
0.35/0.45
500 /1000
0.45/0.65
0.45/0.75
1000/1500
750/1500
o.75/1.3/1.8
1.1/2/2 .4
1.8/2.6/3
2.2/3.3/4
0.65/2/2.4
1.3/3.7/4.5
750/1000
0.85/1/1.5
1.1/1.5/1.8
1.5 /2/2.2
1.8/2.6/3
3.3/4/5.5
4.5/6/7.5
500/750/1000
1500/3000
1000/150 0
750/1500
JB/T7127-1993
Continued Table 3
750/1000
500/1000
1000/1500
Note: The numbers 1 and 2 after S, M, and L represent different powers under the same frame number and speed ratio, 3.9
750/1500
750/1000
7/9/12
10/13/17
14/18.5/24
17/22/28
24/26/34
30/34/42
34/37/50
500/750/1000
3.3/5/6.5/9
4.5/7/8/11
5.5/8/10/13
7/11/13/20
9/14/16/26
11/18.5/20/34
13/22/24/40
The installation dimensions and tolerances of the motor shall conform to the provisions of Table 4 to Table 7, and the overall dimensions shall not be greater than those specified in Table 4 to Table 7. 3
JB/T 71271993
H/60280
Motors with bases with feet and covers without flanges
Note: 1) GE=DG.GE's limit deviation is +1% for base size 0 and +2% for others. 2) The position of K is based on the extension of the pin. There are 14 pages left to read in this version. Do you want to continue reading? This document was shared by betty2013t on 2020-03-12. Continue to read the full text for free
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JB/T 71271993
JB/T 71271993
+0.10), the rest are (+0.20)
Note: 1>GC=D=G, GE's good error code, frame number 8 2>PR+ is the maximum risk.
R is the distance from the white connection surface to the connection self, 4) The detection degree of S chaos is based on the maintenance of the clean replacement 160~225
H80~200
Electric motor with flange on the period
Our city does not have a bottom period
Basic silver fertilizer
W80~/32
Note: 1>GC=D=G, GE's good error code, frame number 8
2>PR+ is the maximum risk value
3) R is the distance from the white connection surface to the connection self, 4) The detection degree of S chaos is based on the maintenance of the clean replacement 160~225
H80~200
Electric motor with flange on the period
Basic silver fertilizer
W80~/32
Note: 1>GC=D=G, GE's good error code, frame number 8
2>PR+ is the maximum risk value
3) R is the distance from the white connection surface to the connection self, 4) The detection degree of S chaos is based on The continuous line of the net is the reference machine
Note: 1》GE=DG.GE's micro-sag deviation is (+Q.20) 2) P is the maximum teaching value,
3) R is the distance from the convex mating surface to the continuous net, the position of the hole is based on the transmission line of the net +04
, the image is
JB/T71271993
H160~225
H80~20
, the motor with convex helix on the oxygen benefit
Table 6 The base is not in the bottom period,
+0: 811
JB/T 71271993
H/80~200
Vertical installation
Wooden exhibition
Inspection degree
H225~280
Electric motor pole shoes without base feet, with convex on the end cover, and axial downward
Position theory
Basic silver application
Note: 1》GE=DGGE micro-sag deviation is (+. 20), P is the maximum allowable value, R is the distance from the convex mating surface to the inner surface, $ The position of the hole is based on the test line of the drill 3.10 JB/T7127-1993 H/80~200 Vertical installation Basic application Motor without foot, flange on the end cover, H225~280 JB/T7127-1993 The size and tolerance of the motor shaft extension key shall comply with the provisions of Table 8. Table 8 The radial circle runout tolerance at half of the shaft extension length shall comply with the provisions of Table 9. Table 9
Diameter d
Position
Circular runout tolerance
JB/T71271993
The dimensions and tolerances of the motor shaft extension key shall comply with the provisions of Table 8. Table 8
The radial circular runout tolerance at half the shaft extension length shall comply with the provisions of Table 9. Table 9
Shaft diameter d
30<≤50
50≤75
Circular runout tolerance
2The radial circular runout tolerance of the flange stop to the motor axis and the end face circular runout tolerance of the flange mating surface to the motor axis shall comply with the provisions of Table 3.12
10.
Flange stop diameter d
130230
230
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