Application of insulation monitoring module in Dandong, Liaoning

Oil drilling rig electrical control system ground detection application 2
The drilling rig electrical control system application is aimed at the fault ground detection system, which is used to detect AC ground faults. A ground fault test button is required (mainly used to determine whether the indicator light is burned out when the ground fault indicator light is on). A grounding indication is also required. For this purpose, we designed and selected the second-generation insulation monitor model launched by Dongguan Qianbo Electronic Technology Co., Ltd. The
type insulation monitor is developed by our company for the characteristics of large distributed capacitance, high grid voltage, complex grid and other characteristics of mining, metallurgy and other power grids. Compared with the early insulation monitor, it has added an independent alarm point, achieving an independent insulation Resistance setting value and alarm output, including remote test reset function and analog output function, completely replace the advanced European and American imported models, and can be used in AC and DC power grids.
br/> Picture 1 shows the insulation testing instrument
Picture 2 shows the insulation resistance meter
Picture 3 shows the wiring method
Picture 4 This is the schematic diagram of the insulation detector
In the front picture, the insulation detector is connected to the AC power supply, the insulation detector monitors the public DC bus voltage, and a fuse is added to the front end of the insulation detector to protect the insulation detector from damage, as shown in the figure The insulation resistance meter shown in Figure 2 is a ground fault indicator light and a ground monitoring test button. The and terminals are grounded and the signal output can be monitored on the host computer. Always pay attention to the system grounding status. Connect the power according to the diagram and enter the debugging mode.