Three-phase integrated current transformer LSY3-10/107, gas-insulated ring main unit accessories, high-voltage core-penetrating type dedicated

The LSY type three-phase integrated current transformer is suitable for installation on the three-phase bushings of ring network switch cabinets and pole-mounted switches, used for measuring and protecting three-phase current and zero-sequence current. It can also be used for measuring and protecting zero-sequence current in multiple cable circuits. During installation, it is fixed on the three-phase bushings of outdoor switch disconnectors, enabling short-circuit protection, single-phase grounding (zero-sequence) protection, and providing power supply for controllers simultaneously. Since its launch, it has received high praise from many users, solving the problem of insufficient internal space in pole-mounted switches for installing zero-sequence current transformers. It is now widely used in outdoor pole-mounted switches such as ZW20, ZW27, ZW28, and VSP5, and has been safely operating on the grid. This series of current transformers can also be used on the three-phase bushings of incoming and outgoing lines of ring network cabinets, serving as current measurement, electrical energy metering, and microcomputer protection for electrical equipment. The core and secondary winding of this series of three-phase integrated current transformers are made of high-quality epoxy resin vacuum casting in flame-retardant plastic housings, which are moisture-proof, stable in performance, and maintenance-free.