Online intelligent monitoring system of power high-voltage dry-type air-core reactor

Abstract

The invention provides an online intelligent monitoring system of a power high-voltage dry-type air-core reactor. The system includes a data processing main control composition, a reactor voltage collection part, a reactor current collection part, a reactor temperature collection part and an energy taking and power supply part. The data processing main control composition is arranged in a shielding shell body assembled on high-voltage wiring terminals. An induction front end of the reactor current collection part is nested on the high-voltage wiring terminals of the tested reactor. A collection front end of the reactor voltage collection part is in parallel connection between the two high-voltage terminals of the reactor. Sampling nodes of the collection front end are connected to the dataprocessing main control composition through voltage. An energy taking front end of the energy taking and power supply part is an energy taking mutual inductance coil arranged on the high-voltage wiring terminals of the reactor in a nested manner. The technical solution adopts a non-intrusive installation structure concentrated at a high-voltage side, avoids tedious composition wiring structures,ensures reliable insulation of the online intelligent monitoring system to the ground, and has work performance of excellent safety, stability and reliability.

Description

technical field [0001] The patent application of the present invention relates to an online monitoring device for power equipment, in particular to an online intelligent monitoring and protection device for a power reactor. Background technique [0002] The power high voltage reactor is one of the widely used electrical equipment in the power system, and the power high voltage reactor is also one of the weakest links in the composition of the power system. In the long-term operation of power high-voltage reactors, local overheating is prone to occur, which will cause local rapid aging, or discharge along the surface due to external environmental factors, resulting in a sharp increase in the current of the turns, damaging the insulation of the turns, causing short circuits between turns, and even discharge burning. It is an important security risk for power grid operation. In addition, the power high voltage reactor is subjected to closing inrush current and overvoltage and ...

AI Technical Summary

Problems solved by technology

However, the relevant monitoring methods in the prior art are complex in composition, especially the additional monitoring on the power line is faced with high-voltage insulation protection, and the existing reactor monitoring device is theoretically feasible, but the technology in high-voltage insulation protection is weak, resulting in the adoption of Monitoring and protection devices have high safety hazards and high failure rates, making it difficult to play an active and effective role in practice

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