GPO-3 insulating sheet is also known as GPO-3 laminate sheet. It is a hard plate like insulating material made of alkali free glass fiber felt soaked in unsaturated polyester resin paste and added with corresponding additives by hot pressing. GPO-3 insulating sheet, also known as UPGM-203, refers to unsaturated polyester glass fiber felt board material. It is used for mechanical and electrical purposes. It has good electrical performance under high humidity and good mechanical performance under medium temperature. It has flame retardancy, arc resistance and leakage resistance.
The switch cabinet is an electrical equipment. The external line of the switch cabinet enters the main control switch in the cabinet first, and then enters the sub control switch. Each sub circuit is set according to its needs. For example, instruments, automatic control, motor magnetic switches, various AC contactors, etc., some are also equipped with high-voltage room and low-voltage room switch cabinets, high-voltage buses, such as power plants, etc., and some are also equipped with low cycle load shedding for main equipment. Switchgear is mainly used to switch, control and protect electrical equipment in the process of power generation, transmission, distribution and energy conversion in the power system. The components in the switch cabinet are mainly composed of circuit breaker, disconnector, load switch, operating mechanism, mutual inductor and various protective devices. The insulating components are used to support and isolate. Therefore, the insulating materials require high electrical strength, good mechanical performance and arc resistance. These insulating components are generally processed with GPO-3 insulating sheet.
