A dry-type reactor non-electrical protection system

Abstract

The invention discloses a dry-type reactor non-electricity protection system, which includes a distributed optical fiber temperature measurement system and a fault analysis and control system. The distributed optical fiber temperature measurement system includes a temperature measurement optical cable and a distributed temperature measurement host, and a fault analysis and control system. The system includes a central processing unit, a monitoring background and a trip outlet relay; the temperature measurement optical cable is laid on the surface of the protected dry-type reactor and connected to the distributed temperature measurement host, which feeds back the temperature information of the temperature measurement optical cable to the central Processor, the central processor judges the operating status of the protected dry-type reactor according to the temperature information, sends an alarm signal to the monitoring background, and sends a trip signal to the tripping exit relay. The invention detects the running condition of the dry-type reactor by accurately measuring the body temperature of the dry-type reactor, and sends out an alarm signal in time when the operation is abnormal, and stops the dry-type reactor from running.

Description

technical field [0001] The invention relates to the field of dry-type reactor protection, in particular to a dry-type reactor non-electrical protection system. Background technique [0002] In the power system, dry-type reactors are often used in the reactive power compensation, harmonic filtering, short-circuit current limiting, etc. of the power system. They are an important part of the power system and are of great significance to maintaining the safe and stable operation of the power system. [0003] At present, the traditional dry-type reactor protection is mainly electrical quantity protection, that is, whether the dry-type reactor is faulty is determined by sampling the current flowing through the dry-type reactor. When a slight inter-turn short circuit occurs in the dry-type reactor, since the overall electrical parameters of the dry-type reactor do not change much, the current of the dry-type reactor will not change significantly, that is, the electrical protection ...

AI Technical Summary

Problems solved by technology

However, this slight turn-to-turn short circuit is very likely to cause continuous heating at the fault point and further damage the surface insulation of the dry-type reactor, expand the short-circuit and heat generation range and cause the dry-type reactor to burn, threatening the safe and stable operation of the power grid

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