Relay protection inspection vehicle

Abstract

The invention discloses a relay protection checking vehicle. The vehicle comprises a cab and a carriage arranged on the rear part of the cab, and is provided with instrument equipment required by on-site relay protection detection, wherein doors are arranged on the left side, the right side and the rear side of the carriage; a plurality of frames are arranged in the carriage; the instrument equipment is arranged on the frames; the wiring terminals of the instrument equipment are arranged on the frames in a mode that the wiring terminals face the outside of the vehicle; a control table for performing control operation on the instrument equipment is arranged in the carriage; a group of incoming line sleeves and a plurality of groups of outgoing line sleeves are arranged on the outer wall ofa power distribution room in a transformer substation; a test circuit is electrically connected between the incoming line sleeves and a bus of the power distribution room; a plurality of test points are connected in parallel between the outgoing line sleeves and the bus of the power distribution room; and a plurality of groups of current transformers are checked at a primary current wiring position. One checking vehicle can meet relay protection checking requirements on selectivity, quickness, sensitivity and reliability through a reasonable structural design and complete equipment configuration.

Description

technical field [0001] The invention relates to a relay protection test, in particular, a relay protection test vehicle which centrally installs various instruments and equipment required for the relay protection test with an AC voltage level of 500kV and below on a motor vehicle. Background technique [0002] During on-site inspection of relay protection, in order to conduct primary side flow test, protection device insulation, zero drift, sampling accuracy, logical judgment, and action behavior inspection, a complete set of inspection equipment is required. At present, the basic situation of relay protection inspection work is: the equipment required for relay protection inspection is stored in the warehouse. Before work every day, the working team will manually transport the equipment from the warehouse to ordinary motor vehicles. After the work of the day is over, the equipment is carried back to the company and then unloaded and put back into the warehouse. There are m...

AI Technical Summary

Problems solved by technology

Each time such heavy equipment needs to be manually transported to the position of the current transformer, and then grouped and sub-item tested, that is, the primary current wire needs to be frequently ascended and disassembled on each current transformer, which brings inconvenience to the on-site operation and increases the risk of work and labor intensity, work efficiency is low

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