After introducing its technical features,application advantages and perfect performances,the author illustrates the availability of type ZCY-45 side dumping rock loader in coal road tunneling.

This paper introduces the erection and optimum usage of the low-voltage reactive automatic compensator in a certain factory, and points out that this device increases the power factor of the electric power system of this factory, reduces the power cost and the electric current and line loss of the transformer, and saves the electric energy.

Operation Key of PAG Quenchant and Its Representative Application Examples;