Before installation of grounding resistance cabinet, the installation of foundation, grounding system, cable trench, embedded internal and external cables and protection pipes shall be completed. Installation shall comply with relevant standards and regulations. The insulation distance between equipment shall meet the corresponding voltage level requirements. At the same time, ventilation, heat dissipation, installation and maintenance of the equipment should also be considered. Transport the equipment to the installation site with forklift, remove the bolts fixing the base, and take out the equipment carefully. When unpacking and packaging, avoid damaging the shell, top or side installation; when using the forklift, pay attention to the angle steel of the bottom shell to avoid damaging the Bo. T equipment name plate. This product can be installed on special foundation or concrete platform, and can be placed horizontally.
When the power system fails, such as partial short circuit or open circuit, the neutral point in the distribution system will shift. At this time, the neutral point grounding resistance will force the transmission and transformation system neutral point grounding and limit its fault current, so that the power system has time for detection, diagnosis, protection and switching, so as to avoid possible damage to lines and equipment, and the grounding resistance cabinet works normally in the power supply. Er power transmission and distribution system. When working, the continuous current is very small. When the power system breaks down, the current flowing through the neutral grounding resistance is very large and the time is very short. Therefore, it is usually used in short-term operation system, and its power and voltage level depend on the transmission and distribution system.