Synthesis monitoring instrument for transformer

Abstract

The invention discloses a transformer comprehensive monitor and is characterized in that the monitor consists of three independent DSP modules which are a temperature control DSP module, an electric quantity monitoring DSP module an a human-machine interaction DSP module, and are connected through a RS232 serial bus. DSP is short for Digital Signal Processing. The monitor has the advantages that because monitoring hardware is not used and a remote control device module is removed, the cost is quite low. Meanwhile, the monitor is linked with internet, is very convenient to monitor transformers intensively, and runs safely and reliably.

Description

(1) Technical field [0001] The invention belongs to the field of power transformer monitoring, in particular to a comprehensive transformer monitoring instrument. (2) Background technology [0002] Transformer monitoring generally includes two aspects: transformer temperature monitoring and transformer electrical parameter monitoring. Transformer electrical parameter monitoring includes voltage, current, frequency and other parameter monitoring and power parameter monitoring. In the past, the transformer monitoring function was completed by the transformer electronic temperature controller, the remote control device (or other transformer electrical parameter acquisition devices) and the electric energy meter (watt-hour meter). Transformer temperature monitoring includes transformer temperature collection, processing, display, over-temperature alarm, over-temperature trip, manual start and stop of cooling fan, etc. In the past, a transformer was generally equipped with an ele...

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Problems solved by technology

[0003] from figure 1 It can be seen that in the past, the monitoring of a transformer generally used three hardware devices: an electronic temperature controller, a telecontrol device (or other transformer electrical parameter acquisition device) and an electric energy meter (watt-hour meter). Jointly completed, hardware procurement and installation costs are high, and these three devices are generally produced by different manufacturers, the interfaces are often not uniform, and it is very troublesome to network them, which is not conducive to the centralized and unified monitoring of transformers

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