CF series AC tachometer generatorDetailed product description：

The CF series AC tachometer generator, also known as the three-phase salient pole permanent magnet AC tachometer generator (hereinafter referred to as the tachometer generator), is mainly used as a speed voltage feedback component in electromagnetic speed regulation generators and other speed regulation systems.
The installation structure of the speed generator is a shaftless structure with the stator flange positioned on the stationary components of the main engine and the rotor mounted on the output shaft of the main engine.

Model Description of CF Series Speed Generator


1. Representative applicable to rotor inner diameters of φ 22- φ 28
2. Representative applicable to rotor inner diameter of φ 32- φ 52
3. Representative applicable to rotor inner diameters ranging from 60 to 80

Product technical performance parameters
1. The technical performance parameters of the production line comply with the standard Q/321284JCF01-2000 "CF Series Speed Generator"
2. Appearance and installation dimensions



Table 1

model

matching motor

installation dimensions

Overall dimensions

frame size

G

D1

F

Ch

L1

D2

T

M

S

P

H

L2

CF-1

one hundred and twelve

ten

φ22

five

two point three

twenty-four

φ110

four

one hundred and forty

φ8

one hundred and sixty-four

one hundred and sixty-three forty-six

one hundred and thirty-two

φ28

CF-1

one hundred and sixty

five

φ32

thirty

φ135

five

one hundred and sixty-five

φ10

one hundred and eighty-seven one hundred and ninety forty-seven

one hundred and eighty

φ32

two hundred

φ42

two hundred and twenty-five

φ45

two hundred and fifty

φ52

F-3

two hundred and eighty

φ60

φ175

two hundred and five

two hundred and thirty-four

two hundred and twenty-four

fifty-one

three hundred and fifteen

φ65

three hundred and fifty-five

φ70 φ80

Note: 1. The supporting motor parameters are YCT series electromagnetic speed regulating motor parameters for reference only.
2. The "machine base number" is the center height dimension.

Main performance parameters of CF series speed measuring generator

model	speed regulation range	insulation class	At 1000r/min			Normal insulation Resistance MQ
			apparent power W	output voltage V	three-phase voltage Unbalanced value V
CF-1	0-1500	B	≥2	20≤u≤35	≤1	ten
CF-2
CF-3

Usage environment
1. The altitude shall not exceed 1000m
2. The ambient temperature ranges from -15 ℃ to 40 ℃.  
3. There is little ash in the surrounding medium, no ferromagnetic material dust, no corrosive metal or insulating gas, and no explosive gas.

Loading, unloading, and storage of CF series speed measuring generators
1. The installation of the speed generator rotor should have a diameter that matches the specifications of the installation shaft. The keyway must be straight and flat, and the magnetic pole should not be struck. When dismantling, special tools should be used to pull out the 2-M5 screw hole.
2. When connecting the lead wire of the speed generator and the excitation winding, attention should be paid to the outgoing line markings. The three-phase of the speed generator is U, V, W, and the excitation winding is F1, F2.
3. When the speed generator is stored for a long time or deemed necessary, the stator should be dried before installation, and then other insulation resistances should be checked to ensure compliance with requirements.
4. The speed measuring generator should be stored in a ventilated and dry environment, and there should be no corrosive gases in the air.

quality assurance
If the speed generator is damaged or cannot function properly due to manufacturing quality within one year of user use, our factory will provide free repair or replacement. Excluding those damaged, dismantled, repaired or modified by users during loading and unloading.

Common faults and their troubleshooting

serial number	fault phenomenon	reason
one	Three phase voltage imbalance	1. The output end is not firmly pressed or has poor contact 2. The DC resistance difference of the three-phase winding is too large 3. Short circuit in a certain part of the winding 4. Broken line somewhere	Check the outlet end and tighten the nut tightly Replace the stator Column replacement stator Connect the broken wire or replace it
two	puncture	1. Winding insulation damage 2. It has been confirmed that it has been severely affected by moisture 3. Incorrect experimental method	Replace the stator Dry first, then check Test according to Table 2
three	Low output voltage	1. Low residual magnetic induction intensity on the rotor surface 2. Severe axial misalignment of rotor and stator magnetic poles 3. Load bias or partial short circuit	Re magnetize or replace the rotor Check and adjust the axial installation dimensions Adjust the load and check the circuit

Ordering Instructions
1. In addition to indicating the product model, the order should also provide the rotor aperture size. For example, "CF-2-32" refers to a speed generator with a stator stop diameter of φ 135mm and a rotor aperture of φ 32mm. Or provide the center height dimension of the speed motor seat.  
2. Speed generators with different installation dimensions and external dimensions from those listed in Table 1, or with changes in their main performance parameters, are products with special requirements. When ordering, in addition to indicating the model, specific special requirements must also be provided in detail. And leave a certain delivery time.