State sensing ring for high-voltage switchgear contact

Abstract

The invention discloses a state sensing ring for a high-voltage switchgear contact. The state sensing ring comprises the components of an annular housing (100), a PCB (2) and a holding device (260), wherein the PCB and the holding device (260) are arranged in the annular housing, wherein the circumferential inner ring surface of the annular housing (100) forms a measuring space. The state sensingring is fixed to a tested contact through the holding device (260). The tested contact penetrates through the measuring space. The state sensing ring is characterized in that the holding device comprises a stroke guiding component, a pushing component and a stroke stopping component, wherein the pushing component can perform reciprocation in a direction to the inner part of the ring or a directionto the outer part of the ring. The stroke guiding component can determine stroke motion guiding on the reciprocation of the pushing component. The stroke stopping component limits the highest motionstroke of the pushing component. The state sensing ring realizes a technical effect of stably fixing the state sensing ring on the tested contact.

Description

technical field [0001] The invention relates to devices for measuring current or voltage or for indicating its presence or sign (G01R 19 / 155), and also to temperature measurement based on the use of electrical or magnetic elements directly sensitive to heat (G01K 7 / 00), the present invention particularly relates to an intelligent sensing loop, in particular to a state monitoring loop for intelligent sensing of a contact state in a high-voltage switchgear. Background technique [0002] The existing technology basically only monitors the temperature of the contact monitoring parameters of the high-voltage switchgear. However, it is too simple to judge whether the equipment is faulty only through the temperature rise, and it is impossible to accurately judge whether it is caused by the temperature rise caused by the equipment fault or the excessive load itself. Normal temperature rise; there are active and passive power supply methods, active is the common battery power supply...

AI Technical Summary

Problems solved by technology

[0002] The existing technology basically only monitors the temperature of the contact monitoring parameters of the high-voltage switchgear. However, it is too simple to judge whether the equipment is faulty only through the temperature rise, and it is impossible to accurately judge whether it is caused by the temperature rise caused by the equipment fault or the excessive load itself. Normal temperature rise; there are active and passive power supply methods, active is the common battery power supply method, the battery life is limited, and it is troublesome to replace; passive current technology, RFID technology, electric field technology, etc. , and the current power acquisition must allow the device to run with a load to work, and the RFID technology has a large reading antenna, which is inconvenient to install. Easy to debug when live

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