Intelligent three-phase comprehensive power parameter monitoring instrument

Abstract

The invention relates to the technical field of power equipment, and discloses an intelligent three-phase comprehensive power parameter monitoring instrument which comprises an instrument box, heat dissipation holes are formed in the middle axes of the left side wall and the right side wall of the instrument box, a placement plate is arranged on the front face of the instrument box, the interior of the placement plate is hollowed out, a display screen is embedded in the middle axis of the side, away from the instrument box, of the placement plate, partition plates are arranged on the left side and the right side in the instrument box, and a water flowing groove is formed in the rear wall in the instrument box. According to the intelligent three-phase comprehensive power parameter monitoring instrument, when gas enters the device through heat dissipation holes, an arc-shaped rubber cap and an arc-shaped elastic strip are deformed under the pushing action of airflow, and an anti-blocking plug is pushed to move out of a moving hole under the action of an arc-shaped rotating strip in the state, so that gas exchange is realized; and meanwhile, the effect of preventing the moving hole from being blocked by dust is achieved when the anti-blocking plug enters and exits the moving hole, and then the purpose of cooling the device is achieved.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to an intelligent three-phase comprehensive power parameter monitoring instrument. Background technique [0002] The three voltage input channels are insulated and isolated from each other, and the three currents are input by clamp current transformers, which is safe and reliable, and can simultaneously measure the amplitude of 1-3 AC voltages and 1-3 AC currents without disconnecting the circuit under test. Value and the phase between each quantity, measure single / three-phase active power, active power factor, reactive power, reactive power factor, frequency and other electrical parameters, and display them in the form of vector diagram or table on the same screen. [0003] The existing monitoring instruments are generally installed outdoors, and because the internal circuits need to work, a large amount of heat will be generated inside, and the heat will generally be dissi...

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Problems solved by technology

[0003] The existing monitoring instruments are generally installed outdoors, and because the internal circuits need to work, a large amount of heat will be generated inside, and the heat will generally be dissipated through the heat dissipation holes, and the opening of the heat dissipation holes will cause rainwater and Dust enters the monitoring instrument and seriously endangers the service life of the device

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