Gas density relay verification device and verification method thereof

A technology for gas density and calibrating devices, which is applied in measuring devices, circuit breaker testing, instruments, etc.

Pending Publication Date: 2019-11-05
SHANGHAI ROYE ELECTRICAL CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To sum up, at present, there is no calibration device and calibration method that can realize the calibration of the gas density relay without valves and disassembly between the density relay and its electrical equipment.

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
  • Gas density relay verification device and verification method thereof
  • Gas density relay verification device and verification method thereof
  • Gas density relay verification device and verification method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0163] see figure 1, a gas density relay calibration device, including a temperature adjustment mechanism 5, at least one pressure sensor 2, at least one temperature sensor 3, valve 4, contact signal sampling unit 6, a computer data processing system 7, gas supply mechanism 8 , multi-way joint 9, a display screen 10 and operation keyboard 12. Pressure sensor 2, valve 4, computer data processing system 7, air supply mechanism 8, multi-way joint 9, display screen 10 and operation keyboard 12 are arranged in a box or casing. Wherein, the gas source supply mechanism 8 can store gas for calibration, the gas source supply mechanism 8 is connected with the multi-way joint 9 through the valve 4 , and the pressure sensor 2 is sealed and fixed on the multi-way joint 9 . The multi-way joint 9 is provided with an interface, which can be connected with the gas density relay 1 on the gas path. The temperature adjustment mechanism 5 is an adjustable temperature adjustment mechanism; during...

Embodiment 2

[0169] see image 3 , a gas density relay calibration device according to Embodiment 2 of the present invention, comprising a temperature adjustment mechanism 5, at least one pressure sensor 2, at least one temperature sensor 3, a valve 4, a contact signal sampling unit 6, and a computer data processing system 7 , Air source providing mechanism 8, multi-way connector 9, a display screen 10 and operation keyboard 12, pressure regulating mechanism 11. Different from the first embodiment, this embodiment also includes a pressure regulating mechanism 11 . The pressure regulating mechanism 11 includes a pressure regulating cylinder 1104, a piston 1101, a regulating rod 1103, and a hand wheel or a driving mechanism 1102. Move to realize the regulation of the air source pressure in the pressure regulating cylinder 1104.

[0170] At the substation site, during calibration, the temperature adjustment mechanism 5 is set opposite to the gas density relay 1; the contact signal sampling ...

Embodiment 3

[0174] see Figure 4 , Figure 4 It is a schematic diagram of an online calibration device for a gas density relay according to Embodiment 3 of the present invention. Specifically: the gas density relay 1 is installed on the electrical equipment 13 through the multi-way joint 9 , and the gas supply joint 14 is arranged on the multi-way joint 9 . The temperature adjustment mechanism 5 is arranged opposite to the gas density relay 1, and the temperature adjustment mechanism 5, at least one pressure sensor 2, at least one temperature sensor 3, contact signal sampling unit 6, and a computer data processing system 7 are fixed on the gas density relay 1; Wherein, the contact signal sampling unit 6 is connected with the gas density relay 1, specifically, the contact signal sampling unit is connected with the contacts of the gas density relay 1; the pressure sensor 2 is connected with the gas density relay 1 on the gas circuit.

[0175] When in normal working condition, the gas dens...

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 provides a gas density relay verification device and a verification method thereof. The device comprises a temperature adjusting mechanism, at least one pressure sensor, at least one temperature sensor, a computer data processing system and a contact signal sampling unit. During verification, a temperature adjusting mechanism and a gas density relay are oppositely arranged, and the temperature of a temperature compensation element of the gas density relay is adjusted by the temperature adjusting mechanism, so that the gas density relay carries out contact signal operation; a gasdensity value is obtained according to the pressure value and the temperature value during contact signal operation, a contact signal operating value of the gas density relay is detected, and the verification work of the contact signal operating value of the gas density relay is finished. The gas density relay verification device can accurately verify gas density relays according to various measurement principles in different occasions and is particularly suitable for gas density relays without three-way valves, and verification can be achieved without disassembling the gas density relays.

Description

technical field [0001] The invention relates to a calibration device for electrical equipment, in particular to a gas density relay calibration device and a calibration method for testing a gas density relay. Background technique [0002] SF 6 Electrical products have been widely used in the power sector, industrial and mining enterprises, and promoted the rapid development of the power industry. How to guarantee SF 6 The reliable and safe operation of electrical products has become one of the important tasks of the power sector. SF 6 Gas density relay is SF 6 One of the key components of electrical switches, it is used to detect SF 6 SF in the electrical equipment body 6 The change of gas density, its performance directly affects the SF 6 Reliable and safe operation of electrical equipment. SF installed on site 6 Due to the infrequent action of the gas density relay, after a period of time, the phenomenon of inflexible action or poor contact of the contacts often o...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01N9/00G01D21/02
CPCG01R31/327G01N9/00G01D21/02G01N9/26G01R31/3271H01H35/28H01H33/563G01R31/3278
Inventor 金海勇吴叶弘黄小泵曾伟郝彩侠王乐乐
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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