Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for improving insulating property of large motor on site

A large-scale motor and insulation performance technology, which is applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve problems such as high cost, affecting production, and long maintenance period

Active Publication Date: 2018-09-14
CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Marine motors, especially main thruster motors, are usually large motors. For the drying of large motors, the existing method is to dismantle them from the site and send them to a professional repair unit for disintegration and drying in a drying room. This method has the problems of long maintenance period and high cost. , seriously affecting production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for improving insulating property of large motor on site
  • Method for improving insulating property of large motor on site

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] This embodiment further illustrates the technical solution of the present invention by taking the main motor of side thruster for marine as an example, wherein the motor is a squirrel-cage asynchronous motor, and its working parameters are: C4W500LA6 Voltage: 380V Frequency: 50HZ Current: 2140A Power: 1140KW, This embodiment is mainly aimed at drying the stator winding of the squirrel-cage asynchronous motor. A method for improving the insulation performance of a large motor on site provided by the present invention includes:

[0024] S010, the current drying step, start the drying power supply, apply current to the winding inside the motor from the drying power su...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for improving the insulating property of a large motor on site. The method comprises the steps as follows: S010, current drying: a drying power supply is started, andcurrent is applied to winding in the motor from the drying power supply continuously for A h; S020, hot air is introduced from an upper air port of the motor and exhausted from a lower air port afterpassing through the winding in the motor; S030, hot air is introduced from the lower air port of the motor and exhausted from the upper air port after passing through the winding in the motor. Current heating and hot air drying steps are performed on the winding in the motor under the condition that the motor is not disassembled, the inside of the motor is dried, and the insulating property of the motor is further improved.

Description

technical field [0001] The invention relates to the field of motor insulation, in particular to a method for improving the insulation performance of a large motor on site. Background technique [0002] Marine motors, especially main thruster motors, are susceptible to moisture due to long-term operation at sea. When the motor is damp, its insulation resistance will decrease. If it is not handled in time, it will cause leakage or motor burnout. Therefore, it is necessary to monitor the insulation resistance value of the marine motor in real time. When the insulation resistance value of the motor is detected to be too low, it is necessary to stop the operation of the motor immediately and determine whether it is caused by damp. If the judgment result is that the insulation resistance of the motor is too low due to damp, the motor needs to be dried. [0003] Marine motors, especially side thruster main motors, are usually large motors. For the drying of large motors, the exist...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02K15/12
CPCH02K15/125
Inventor 徐晓张革陈琳琳
Owner CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com