Three-grade seismic fortification method for electrical equipment

A technology for electrical equipment and grades, applied in seismic equipment and other directions, can solve the problems of disconnected seismic assessment, poor seismic input applicability, applicability, and operability, etc., to ensure seismic reliability, functional safety and reliability, and improve seismic requirements. Effect

Inactive Publication Date: 2012-09-12
CHINA ELECTRIC POWER RES INST +1
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the seismic assessment of electrical equipment is carried out according to the fortification requirements of the site fortification intensity in the construction field, it will often cause the equipment manufacturers to be unable to adapt to the seismic fortification requirements of different regions, which may cause the seismic performance of the equipment to fail to meet the fortification requirements
[0010] In addition, the seismic response spectrum used in the seismic fortification of electrical equipment is completely copied from the building's seismic design code, and different sites have different response spectra, which also leads to poor applicability of seismic input for electrical equipment seismic assessment
In the actual seismic design of electrical equipment, the seismic assessment of electrical equipment by engineering design units and equipment manufacturers is often

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
  • Three-grade seismic fortification method for electrical equipment
  • Three-grade seismic fortification method for electrical equipment
  • Three-grade seismic fortification method for electrical equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] figure 1 Schematic diagram of the three-level anti-seismic fortification vibrating table for 220kV SF6 circuit breaker, including the arc extinguishing chamber porcelain bushing, the middle pillar porcelain bushing, the lower pillar porcelain bushing, the arm box and the mechanism box.

[0057] Attached table 3 is the seismic response of 220kV SF6 circuit breaker in normal seismic installation;

[0058] Attached table 4 is the seismic response of 220kV SF6 circuit breaker in medium seismic installation level.

[0059] Schedule 3

[0060]

[0061] Schedule 4

[0062]

Embodiment 2

[0064] figure 2 Schematic diagram of the structure for the assessment of the anti-seismic capability test of 500kV arrester; including the equalizing ring ①, the upper electrode ②, the sealing ring ③, the pressure ring ④, the core assembly ⑤, the magnetic shell ⑥, the upper flange ⑦, the lower flange ⑧ and the cover Board ⑨.

[0065] Attached Table 5 shows the seismic response of 500kV arresters in normal seismic installations;

[0066] Attached Table 6 shows the seismic response of 500kV surge arresters in the medium seismic setting.

[0067] Schedule 5

[0068]

[0069] Schedule 6

[0070]

[0071] Embodiment 1 and Embodiment 2 according to the anti-seismic fortification and assessment method proposed by the patent of the present invention, the ordinary and medium anti-seismic fortification levels of 220kV SF6 circuit breaker and 500kV arrester are set, and the working conditions of the shaking table test assessment are pre-designed. For the fortification target o...

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

PropertyMeasurementUnit
Stressaaaaaaaaaa
Login to view more

Abstract

The invention provides a three-grade seismic fortification method for electrical equipment. The method comprises the following steps of: dividing a seismic fortification level and defining acceleration peak values of different seismic inputs; determining a seismic fortification target; and checking the seismic capacity of the electrical equipment. On the basis of the self seismic capacity of the electrical equipment, a unified seismic fortification level is preset, so the fortification levels of an equipment manufacturer, engineering design and an owner are accordant, and the three-grade seismic fortification method for the electrical equipment has the characteristics of clear concept, convenience for operation and the like; moreover, according to the current economic and social development level of China, on the basis of a check criteria in the seismic fortification level provided by the invention, seismic requirements of the electrical equipment of China can be remarkably improved, great practical significance is provided for guarantee of the seismic reliability of the electrical equipment under various types of seismic action; and the method is applicable to seismic design and check of various kinds of electrical equipment in a voltage grade of 35 kV or over, and can be reference for the seismic design and check of other types of equipment.

Description

technical field [0001] The invention belongs to the field of anti-seismic equipment, and in particular relates to a three-level anti-seismic fortification method for electrical equipment. Background technique [0002] The seismic assessment standards and fortification goals of electrical equipment in my country's existing codes mainly refer to the building's seismic design codes, and are set according to the fortification intensity of the project location. See Attached Table 1 for the peak acceleration value of electrical equipment seismic assessment. [0003] Schedule 1 [0004] [0005] When the test piece is not assessed together with the support structure, it should be multiplied by the dynamic amplification factor. For example, when the seismic assessment of the transformer bushing in the IX degree area without the transformer body is carried out, the acceleration peak value of the artificially synthesized seismic wave or the real earthquake record is 0.80g, while ...

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): H02B1/54
Inventor 曹枚根范荣全李正程永锋代泽兵卢智成
Owner CHINA ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap