A gas density relay with a gas density level indicator
A technology of gas density and relay, applied in the direction of circuits, electric switches, electrical components, etc., can solve the problems of low reading accuracy of the meter head, interference between relays and indicators, inconvenient monitoring, etc., to achieve convenient application, no need for power supply, Monitor the effect of convenience
Active Publication Date: 2018-10-19
SHANGHAI ROYE ELECTRICAL CO LTD
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Problems solved by technology
[0006] The gas density relay with gas density level indicator of the present invention discloses a new scheme, which adopts the scheme of separately designing the relay and the indicator, which solves the problem of mutual interference between the relay and the indicator in the existing integrated design scheme, and the reading accuracy of the meter head is not accurate. Problems such as high and inconvenient monitoring
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[0026] In order to better understand the technical solution of the present invention, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings:
[0027] See figure 1 and figure 2 , a gas density relay with a gas density level indicator of the present invention is mainly composed of a gas density relay A and a gas density level indicator B that is relatively independent of the gas density relay. The gas density level indicator includes a housing 40 , an indicator 41 and a circuit module 42 . The indicator 41 and the circuit module 42 are mounted on the housing 40 . The signal contacts of the gas density relay (through the signal line 16) have 4 independent pairs, of which 2 pairs are connected to the gas density level indicator, and the gas density level indicator can display the contact action state, and then display the gas density level. The other 2 pairs are output separately to complete the signa...
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The invention discloses a gas density relay with a gas density level indicator. The gas density relay comprises a casing, microswitches, an adjusting mechanism and the gas density level indicator, wherein them microswitches and the adjusting mechanism are arranged in the casing, the adjusting mechanism corresponds to the microswitches, and the gas density level indicator is independent from a signal control part of the density relay and comprises an indicator and a circuit module. The signal control part of the density relay includes at least two pairs of signal contacts independent from each other; at least one pair is connected to the gas density level indicator, and the gas density level indicator can display motion states of the contacts, and further display the gas density level; and at least another pair is output independently to realize the signal output function of the density relay. Due to the design that the indicator is separated from the density relay body, the gas density relay can be integrated with an electrical system in a better manner, the gas density relay is mounted on a metal panel of an instrument cabinet so that a circuit part is separated from a gas passage part in the installation space, and the gas density can be used in more occasions.
Description
technical field [0001] The invention relates to a device for monitoring the airtight insulating gas density of electrical products, in particular to a gas density relay which realizes the separate design of a density relay and a gas density level indicator, and belongs to the field of gas density relays. Background technique [0002] Electrical products have been widely used in the power sector, industrial and mining enterprises, and promoted the rapid development of the power industry. Ensuring the reliable and safe operation of electrical products has become one of the important tasks of the power sector. The arc extinguishing medium and insulating medium of electrical products are gases, and no gas leakage can occur. If gas leakage occurs, the reliable and safe operation of electrical products cannot be guaranteed. Therefore, it is very necessary to monitor the density value of electrical products. The gas density relay is a device used to monitor the gas density and pre...
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IPC IPC(8): H01H35/26H01H35/32
CPCH01H35/26H01H35/32
Inventor 金海勇
Owner SHANGHAI ROYE ELECTRICAL CO LTD