Suitable for underground coal mine in explosive environment, in rated frequency 50Hz, rated voltage 1140V, 660V, 380V three-phase neutral point ungrounded power supply system, The 1140V, 660V, 380V power supply into 127V lighting and signal load power supply, power control, short circuit, leakage and other protection for the integrated explosion-proof electrical equipment. Connected with KJ series underground coal mine power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended substation.

KJ1296 mine power supply monitoring system is developed to adapt to 10KV and below substation power safety monitoring system in coal mine; Based on the characteristics of coal mine power supply and distribution system and the mature technology of ground power distribution management system, it adopts the latest technology of ground power system automation, embedded system technology, distributed network technology, etc., and integrates my company's more than 20 years of research experience in coal mine power supply and distribution system, and independently develops coal mine professional power monitoring system. It is an integrated power station automation system that integrates the functions of measurement, protection, control and communication. It realizes real-time power data acquisition, data recording, fault diagnosis, fault warning, fault recording and so on for underground high and low voltage power supply equipment. Thus, the ground dispatching center can realize the five remote functions of telemetry, remote communication, remote adjustment, remote viewing and remote control of the underground high and low voltage power supply equipment, which significantly improves the stability and reliability of the mine power supply system, effectively reduces the occurrence of unplanned power failure accidents in the mine, and can generate a variety of records and statistical reports.

The system is suitable for underground coal mine with explosive dangerous gas and coal dust, and can be used in cable trench, high voltage cable, transmission belt, coal transport trestle, coal storage yard, dangerous goods warehouse and other occasions that need space continuous temperature measurement. It is an ideal upgrade replacement for traditional temperature measurement methods (temperature sensing cable, temperature measuring cable). This system integrates computer, optical fiber communication, optical fiber sensing, photoelectric control and other technologies in one. It is a system that uses the temperature effect of Raman backscatter signal generated by laser in the process of optical fiber transmission, combined with the principle of optical time domain reflectometry to obtain spatial temperature distribution information and spatial positioning information. As a temperature signal sensing and transmission medium, optical fiber has the advantages of intrinsically safe, corrosion resistant, easy to install wiring, free from electromagnetic interference, and can realize long-distance distribution measurement.

Suitable for underground coal mines in explosive hazardous environments, control, protect, and measure power supply lines and equipment in three-phase AC neutral ungrounded or arc suppression coil grounded power supply systems with rated frequency 50Hz, rated voltage 10KV, 6KV, and rated current not exceeding 630A. It can meet the usage needs of different methods such as receiving power, feeding power, contacting, and connecting stations. Connected with KJ series underground power grid monitoring system, it can realize remote automatic control, monitoring and monitoring of power equipment, and realize modern management such as unattended Electrical substation.