Ground detection experiment system for mining equipment

Abstract

The invention discloses a ground detection experiment system for mining equipment, relates to the mining equipment detection field. An isolation transformer (1) is connected with a ground power supply circuit, and a neutral point grounding system is converted into a neutral point un-grounding system so that a diversity parameter when the neutral point is ungrounded is detected under the conditionthat the neutral point is grounded; the over-current or over-voltage is judged through the current detection and voltage detection so as to detect various different electric leakage forms on the sameequipment; detected parameters have high precision, and the detection measure is good; an embedded system detection substation and a PLC (programmable logic controller) system are designed, the equipment is controlled to operate through the detection result; and the result can be inquired online through a principle computer; the intellectualization, visualization and communication of the equipment is improved.

Description

technical field [0001] The invention relates to the field of mining equipment detection, in particular to a ground detection experiment system for mining equipment. Background technique [0002] At present, since the neutral point of the mining power supply system operates in the way that the neutral point is not grounded, the mining equipment must have leakage detection, and there are many ways of mining leakage detection, such as additional power supply DC detection, zero-sequence voltage Type, zero-sequence current type, zero-sequence power direction type, bypass grounding type, etc. These methods have both non-selective leakage and selective leakage. For mine over-current protection, over-current protection includes short-circuit protection and over-current protection, which is mainly realized through time limit protection. Mining equipment must be tested during the production process and before going into the mine. At present, most of the domestic experimental devices ...

AI Technical Summary

Problems solved by technology

Mining equipment must be tested during the production process and before going into the mine. At present, most of the domestic experimental devices are relatively backward. They only test a certain item or a certain parameter, and finally rely on the actual test in the coal mine.

Images