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大多数用架线式电机车牵引的矿井均以载波电话和叫人电话作为主要通讯手段,因此当这些设备一旦发生问题,生产即受影响,生产成本相应提高。载波电话利用电机车架线及铁轨作为传输回路,供调度员与电机车司机间通话。由于在架空线和电机车直流馈电线上跨接大量负荷如电机车电机、油泵、照明用电、加热器、整流器等,使载波电话传输回路的通讯质量大为降低,这是载波电话质量不佳的主要原因。其中影响最大者为供给电机车用的300V或600V直流电源的整流器,另外,则是架空线沿线的分支和终端匹配用得不好。有一种解决上述问题的简便措施,只要采
Most of the mines towed by overhead locomotives use carrier phones and callers as the main means of communication. Therefore, once these equipment problems occur, the production is affected and the production cost is correspondingly raised. Carrier phone using the motor frame lines and rails as a transmission circuit for dispatchers and electric locomotive drivers call. As the overhead lines and electric vehicles on the DC feeder line across a large number of loads such as electric motor vehicles, pumps, lighting electricity, heaters, rectifiers, so that the communication quality of the carrier phone transmission circuit is greatly reduced, which is the carrier phone quality is not The main reason is good. Among them, the most influential one is the rectifier of 300V or 600V DC power supply used for electric locomotive. In addition, the branch and terminal matching along overhead lines are not well matched. There is a simple solution to the above problems, as long as mining