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Three-discrete motor maintenance manual

   2026-01-13 NetworkingName1670
Key Point:Edited recommendations for the three-system motion maintenance manual: a text that is easy to understand. Emphasis on practice and guidanceBibliographyChapter 11. 1. 1 classification by size or voltage1. 1. 2 classification by type of installation at time of use1. 1. 3 classification by shell protective capacity1. 1. 4 classification by cooling method1. 1. 5 classification by electrical work system1. 1. 6 classification by use environment1. 1. 7

Edited recommendations for the three-system motion maintenance manual: a text that is easy to understand. Emphasis on practice and guidance

Bibliography

Chapter 1

1. 1. 1 classification by size or voltage

1. 1. 2 classification by type of installation at time of use

1. 1. 3 classification by shell protective capacity

1. 1. 4 classification by cooling method

1. 1. 5 classification by electrical work system

1. 1. 6 classification by use environment

1. 1. 7 categorization of blast-proof generators

1. 1. 8 classification by rotor structural form

1. 2 a placard reading of three different paced motors

1. 2. 2 meaning of the main contents of the inscription and related knowledge

1. 2. 3 identification of imported and exported motors in english

1. 3 definition and relationship between wire voltage and phase voltage, wire currents and phase currents

1. 3. 1 wire and phase voltage

1. 3. 2 wire and phase currents

Chapter 2 structure and dismantling methods for common three different paces of electrical motor

2. 1 structure of general cage-type rotor walker motors

2. 2 cyclical rotor 3-segregated electric motor

2. 2. 2 brush structures without brushes and short circuits

2. 2. 3 brushing and short-circuit structure

2. 2. 4 brush and brush systems

2. 3 type of rolling bearing for electric power

2. 3. 1 composition of rolling bearings

2. 3. 2 scroll bearing specifications code

2. 4 common tool equipment for power dismantling

2. 4. 4 common screw wrench

2. 4. 5 strength wrench

2. 4. 7 common and special-purpose clamps

2. 4. 11 boost and load equipment

2. 5 three-discrete power-motion dismantling methods

2. 5. 1 matters to be addressed when dismantling electrical machines

2. 5. 2 decomposition methods for less common differentiating motors

2. 5. 3 dismantling methods for circuital circuits and motorized condensers

2. 6 method of assembly of the common three different pace motors

2. 6. 1 combination process for smaller-capacity motors

2. 6. 2 assembly process for large power motors

2. 7 installation process for circuital sub-centres and brush systems

2. 7. 1 installation process of a collection ring

2. 7. 2 installation of a brush system

2. 8 dismantling and assembly methods for scroll bearings

2. 8. 1 dismantling methods and care

2. 8. 2 cleaning and quality check before assembly

2. 8. 3 forming methods and care

2. 9. 2 types, performance and selection principles for lubricants

2. 9. 3 waste content of scroll bearings

Chapter 3 common causes of failure and diagnostic methods for common three-step electric motors

3. 1 explanation of common malfunctions

3. 1. 1 imbalance of tri-phase current (or voltage, resistance)

3. 1. 2 short circuits between, between and over

3. 1. 4 disconnection (disconnection)

3. 1. 5 mechanical and electromagnetic noise

3. 1. 6 diverse hearts and axes

3. 2 common power detection equipment, instrumentation instruments and electrical measurements

3. 2. 1 substances for low-pressure testing (power examination pens)

3. 2. 5 inspection of electrical insulation using signaling and power leaks

3. 2. 6 intersectional shock resistance voltage test yi

3. 2. 7 method of production and use of short circuit (or breakout) detectors

3. 2. 8 communication voltage testers and test methods

3. 2. 9 phasers and methods for determining the sequence of the three-phase power sources

3. 2. 10 exchange of current meters, current sensors and current measurements

3. 2. 11 exchange of voltage meters, voltage intersensors and voltage measurements

3. 2. 12 communication power gauges and power measurement lines

3. 2. 13 three-phase current, voltage and power integrated measurement lines

3. 2. 14 types of amplifiers and their use

3. 2. 15 types of sound scale and methods used

3. 2. 16 temperature measurement instruments

3. 2. 17 rotation schedules and rate measurements

3. 2. 18 quick-measurement devices and measurement methods in the absence of rotation tables

3. 2. 19 measuring the input, output voltage, current problems

3. 3 measurement devices and measurement methods for round-jumping of electrical components

3. 3. 2 measurement of arc-to-axis run-off of the electrician's axis towards the circle

3. 3. 3 measurement of the routing and axle-to-axis movement of the end of the concourse of the concourse of the electric generator

3. 4 reasons for and methods for determining common malfunctions

3. 4. 1 unable to move or slowly turn and make an abnormal sound of “humming” after electrical power

3. 4. 2 when activated, the breaker jumps fast or melts

3. 4. 3 largely imbalanced tri-phase currents

3. 4. 4 large airborne currents

3. 4. 5 higher electrical temperatures

3. 4. 6 severe discoloration or burning of the sidings

3. 4. 8 vibration and noise

3. 4. 9 the current table pointer keeps swinging on a periodic basis while loading

3. 4. 10 method of determining rotor breakers

3. 4. 11 small start and turn solutions

3. 4. 12 method of determining the number of poles of an electrical device using a tensile scale

3. 4. 13 method for determining the end of each of the three contour groups

3. 4. 14 absorption or failure of electrical power as a result of the wiring failure of the y-thirty-pressure-activated circuit move

3. 4. 15 measurement of currents in star-triangular activation circuits

3. 5 discrepancies and causes specific to the wiring of the wiring subdivisions

3. 5. 1 excessive but insufficient electricity

3. 5. 2 methodology for finding causes of rotor failure

3. 5. 3 fired up on a collection ring, faster wear on a brush or a collection ring, overheating

3. 5. 4 methods for checking the area of exposure to electric brushes and slide rings

3. 5. 5 method of handling after the break of a brush fuse (branding)

3. 5. 6 method of repairing the malfunctioning of the loop

Chapter 4 structure rationale and common failure management for special-purpose motors

4. 1 emps

4. 1. 3 type and rationale of speed gauge generators used

4. 1. 4 basis for the configuration of the control type selected

4. 1. 5 common malfunctions and disposal methods

4. 1. 6 operational care after repairs

4. 2 modular transformers

4. 2. 1 rationale and structural characteristics

4. 2. 2 several scenarios and switching methods that require a switch between a variable and a working frequency power source

4. 2. 3 reasons for and treatment of noise or vibrations when running at a certain frequency segment

4. 3 deterrence multivelocity generators

4. 3. 1 modular multi-speed machines

4. 3. 2 characteristics of highly multi-speed electrical end-line markings

4. 3. 3 commonly used methods of multi-velocity transmission

4. 3. 4 due diligence in the use of highly volatile multi-speed generators

4. 4 conical rotor brakes

4. 4. 1 structural characteristics and brake principles

4. 4. 2 reasons for and treatment of starting difficulties or lack of power rectangles

4. 4. 3 distinctive causes and treatment of overheating

4. 4. 4 methods for repairing brakes for conical rotors

4. 4. 5 method for adjusting the power rectangular of conical rotors

4. 4. 6 specialized tools and use methods for the assembly of brake springs

4. 5 side-magnetized home-dumping machines

4. 6 electromagnetic brake machines

4. 7 leverages for home-based brakes

Chapter 5 dismantling and production methods of the fixed circuits

5. 1 relevant terms and parameters of firm heart

5. 2 patterns, related terms and parameters commonly used in fixed circles

5. 3. 1 work to be done before and after the dismantling of the bypass group

5. 3. 2 cold dismantling by rounding

5. 3. 3 thermal decomposition by rounding

5. 3. 4 dismantling methods in form fixed rotors

5. 4 method of making circuit models

5. 4. 1 types of circuit models commonly used

5. 4. 2 method for determining the size of the circuit model

5. 4. 3 methodologies for wood wiring

5. 5 process and quality check for leathering

5. 5. 1 deviation methods and care

5. 5. 2 quality checks of the coil

Chapter 6

6. 1 preparatory work to be done before embedding

6. 2 usual tools for embedding, wiring and end dressing

6. 3 insulation materials, tailoring methods and size requirements for fixed-assemblies

6. 4 integer group embedding process

6. 5 examples of embedding processes in four commonly used forms of rounding

6. 5. 2 single-layer concentric circuits

6. 5. 3 single-storey circuits

6. 5. 4 cross-chain circuits

6. 5. 5 double-layer folded circuits

6. 6 operating methods and requirements

6. 7 packing methods and requirements around the end of the group

6. 8 embedded line process for stationary formations

6. 8. 1 type of bypass group and insulation structure

6. 8. 2 inspections and requirements for bypass groups

6. 8. 4 pre-laying check and test

6. 8. 5 end-wire process

6. 9 inspections and tests before varnishing after iding

6. 9. 1 appearance and size checks

6. 9. 2 measurement of direct current resistance in circuit groups

6. 9. 3 measurement of thermal sensor elements and tidal and tropical resistance

6. 9. 4 insulation performance inspection and failure management methods

6. 9. 5 inspection of the three-phase current balance

6. 9. 6 inspection of the direction of outline sequence or magnetic field rotation

6. 9. 7 check the validity of end-end and polar lines with a compass

Chapter 7 repair and production of hard circuits

7. 1 types of circuits

7. 1. 1 types of rotors

7. 1. 2 type and parameters of a wave circle

7. 2 method of removing hard circuits from circuits

7. 2. 1 work to be done before dismantlement

7. 3 method of production of rotor wave rounding

7. 4 tile insulation structure for wave-shaped rounding

7. 5 specialized tools for rotor hard-rotation group wiring and wiring

7. 6 twirling and wiring of rotor wave circles

7. 7 end of a ligature-free rotor wave-shaped circle

7. 8 process by which the rotor leads out the line through the rotor axis

7. 9 checking of retrenchments

Chapter 8 leaching and drying of round groups

8. 1 the main effect of immersion

8. 2 performance indicators and selection principles for impregnated paints

8. 3 method of measuring viscosity of impregnated paint and requirements for viscosity at different temperatures

8. 4 formal leaching and drying processes and requirements

8. 4. 1 preparation for leaching

8. 4. 2 processes and requirements for leaching and drying

8. 5 simple leaching methods and operational requirements

8. 6 simple methods and operating requirements for dryer circuits

8. 7 vacuum pressure impregnation (vpi) profiles

Chapter 9 repair of mechanical components

9. 1. 3 sub-axis or severe damage axis

9. 2 repair of end-cover damage

9. 2. 1 small diameter of bearing chamber

9. 2. 2 large diameter of bearing chamber

9. 3 fragmentation floor foot repair

9. 4 sand eye and air hole repair for casting iron

9. 4. 1 processes for patching with "camber-ktra series specially for patching"

9. 4. 2 process for repair of “epoxy powder”

9. 4. 3 welding process with zinc welds

Chapter 10

10. 2. 1 inspection blockage test

10. 2. 2 tests to capture constrictive curves

10. 2. 3 test methods for indirect extraction of electrical currents and rectangles with y-silver-relief

10. 4 turn-through circuit voltage test for circuital circuits

10. 5 vibration determination test

10. 5. 1 installation requirements for electrical appliances

10. 6 noise determination tests

10. 6. 1 installation requirements for power plants

10. 6. 2 noise level determination tests

10. 7 tests for measuring the power rectangular of the brake power mechanism

10. 8 speed adjustment range inspection

Appendix 1 quest of the deep ditch bearings (gb/t4604-1993)

Appendix 2 y (ip44) series iii different step motion current and used axle signs

Appendix 3 y2(ip54) series iii different step motion current and used axle bearing number

Appendix 4 tables comparing the type of rolling bearings used in the main axle production plants in our country and abroad (inline 10 mm and above)

Appendix 5 t-minus copper-cron and k-minus nickel chromium-nickel thermal electrocution scale

Appendix 6 ba1 and ba2 (pt100) pyramid thermal retardation scale

Appendix 7 y (ip44) and y2 (ip54) series iii different-tangular power-drive dimensions and round-jump mass (mm)

Appendix 8 radial and axle-jumping bus to the axis of the generator at the cam stop

Appendix 9 y series (ip44) iii differential motion tk* (multiple), interrupted current ik* (multiple) limit

Appendix 10 average statistically different paced electrical resistance of a plant y series (ip44) iii (25°c)

Appendix 11 average of statistical data of a plant y(ip44) and y2(ip54) series iii different paced power flows (a)

Appendix 12 electric vibration limits (extracted from gb 10068-2008)

Appendix 13 rotating motors (except as provided in appendix 10) a-weighted acoustic power grade limits (gb 10069. 3-2008)

Appendix 14 the cooling method is the a-weight acoustic power level limit for the single-speed 3-phase cavity motor of ic411, ic511, ic611 (gb 10069. 3-2008)

Appendix 15 y (ip44) and y2 (ip54) series iii dichotomy motor noise power limits (db(a))

Appendix 16 meaning of the electromagnetic line model

Annex 17 qz-1 and qz-2 high-strength paint packed copper line specifications

Appendices 18: specification of bronze lines and painted bronze lines

Appendix 19 common insulation materials and supporting materials

Appendix 20 y series (ip44,380v,50hz) iii diverse modified motion, rotation data

Appendix 21 y-series (ip44, 380v, 50hz) rewindable types

Appendix 22 y2 series (ip54,380v,50hz) iii differing modified motion, rotation data

Appendix 23 yr-series circuital circuit electric motor determination, rotor detachment technical data

Appendix 24 impact of ambient temperature and altitude on electrically motivated output power

Briefing by the author

In addition, he is a senior engineer and former deputy technical director of pygmy electric co. Ltd. In beijing. He has taught standards and practical techniques at several nationwide workshops on electrical detection and trouble diagnosis. Participated in the drafting of standards in several countries and industries related to electrical testing. There are more than 20 books, such as the manual on electrical tests; the manual on electrical test techniques and equipment; the technology for electrical use and maintenance; and the technology for the use and maintenance of graphic three phases。

 
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