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Gas density relay free of detachment in verification process

A gas density, relay technology, applied in circuits, electrical switches, electrical components, etc., to achieve the effects of small size, good sealing performance, and high environmental protection value

Active Publication Date: 2015-01-21
SHANGHAI ROYE ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a gas density relay without disassembly during calibration, which is used to solve the problem that the gas density relay in the prior art needs to be disassembled and separated from the gas density relay or additionally installed with a three-way valve joint to perform calibration.

Method used

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  • Gas density relay free of detachment in verification process
  • Gas density relay free of detachment in verification process
  • Gas density relay free of detachment in verification process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 2 It is a front view partial cross-sectional schematic diagram of a gas density relay according to Embodiment 1 of the present invention, such as figure 2 As shown, the disassembly-free gas density relay according to Embodiment 1 of the present invention includes: a housing 101, a base 102, a pressure detector 103, a temperature compensation element 104, and a core 105 disposed in the housing. , Pointer 106, Dial 107, End Block 108, Several Signal Generators 109, Equipment Connection Joint 110, and Verification Interface 2 and Valve 3. One end of the valve 3 communicates with the equipment connection joint 110, and the other end of the valve 3 communicates with the calibration port 2; the calibration port 2 communicates with the pressure detection port 2 through the base 102 Device 103 is connected. The verification interface 2 can be designed as a quick connection to further improve work efficiency.

[0037] Wherein, one end of the pressure detector 103 and...

Embodiment 2

[0040] image 3 It is a front view partial cross-sectional schematic diagram of a gas density relay according to Embodiment 2 of the present invention, such as image 3 As shown, the verification interface 2 is fixed on the lower right corner of the housing 101 of the gas density relay, that is, below the terminal block 111, the valve 3 of the gas density relay is arranged on the equipment connection joint 110 of the gas density relay, and the verification interface 2 is set on the casing 101. On the gas circuit, one end of the valve 3 is connected to the equipment connection joint 110, the other end of the valve 3 is connected to the calibration port 2 through the gas circuit connector 402 of the calibration port, and the calibration port 2 is connected to the gas circuit connector 403 of the relay. The base 102 and the pressure detector 103 are connected. When the valve 3 is opened, the equipment connection joint 110 is connected with the base 102 and the pressure detector...

Embodiment 3

[0042] Figure 4 It is a front view partial cross-sectional schematic diagram of the gas density relay of Embodiment 3 of the present invention, as Figure 4 As shown, the verification interface 2 is fixed on the lower right corner of the housing 101 of the gas density relay, that is, below the wiring seat 111, the valve 3 of the gas density relay is arranged on the housing 101, and the verification interface 2 is arranged on the on the housing 101. On the air circuit, one end of the valve 3 communicates with the equipment connection joint 110 through the switch air circuit connector 401, and the other end of the valve 3 communicates with the calibration port 2 through the calibration interface gas circuit connector 402, and the calibration interface 2 passes through The relay air circuit connection part 403 communicates with the base 102 and the pressure detector 103 . When the valve 3 is opened, the equipment connection joint 110 is connected with the base 102 and the pres...

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Abstract

The invention discloses a gas density relay free of detachment in the verification process. The gas density relay comprises a shell, a base, a pressure detector, a temperature compensation element, a machine core, a pointer, a dial, a plurality of signal generators and a device connection connector, wherein the base, the pressure detector, the temperature compensation element, the machine core, the pointer, the dial, the signal generators and the device connection connector are arranged in the shell. The gas density relay further comprises a verification connector and a valve, wherein one end of the valve is communicated with the device connection connector, the other end of the valve is communicated with the verification connector, and the verification connector is communicated with the pressure detector through the base. The gas density relay has the advantages that basically like an ordinary density relay, the gas density relay can be installed on any occasion, and the problem that due to the fact that the size of a valve connector is large, the gas density relay can not be installed in many places is thoroughly solved; an additionally-arranged valve type three-way connector can be omitted, materials are greatly saved, the gas density relay has quite high environmental protection value, and meanwhile the gas density relay saves cost and is beneficial to application and popularization; the gas density relay is good in sealing performance, high in safety coefficient, simple in structure and small in size.

Description

technical field [0001] The invention relates to the technical field of electric power, in particular to a gas density relay which can be disassembled during calibration. Background technique [0002] Sulfur hexafluoride (SF6) gas density relay (including density gauge and pressure gauge) is used to detect the change of sulfur hexafluoride gas density in the SF6 electrical switch, and its performance directly affects the Reliable and safe operation of sulfur electrical switches. The sulfur hexafluoride gas density relay installed on the site does not operate frequently, and after a period of time, it often has the phenomenon of inflexible action or poor contact of the contacts, and some may also have poor temperature compensation performance. Cause the sulfur hexafluoride gas density relay to malfunction. Therefore, the test regulations stipulate that each unit that uses sulfur hexafluoride electrical switches should regularly calibrate the sulfur hexafluoride gas density r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/26
CPCH01H35/26H01H35/28H01H35/32H01H35/36H01H2300/052
Inventor 金海勇
Owner SHANGHAI ROYE ELECTRICAL CO LTD
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