MICROCOMPUTER-BASED PROTECTION AND CONTROL DEVICE

The microcomputer-based protection and control device is a new generation of relay protection equipment independently developed by Zhejiang Hangmei Digital Intelligence Technology Co., Ltd. to meet the miniaturization requirements of modern switchgear. It provides comprehensive protection functions for 10 kV and below voltage-class primary equipment such as overhead lines, cable lines, transformers, motors, capacitors, and PTs. With a carefully designed appearance, the product is compact and refined, enabling direct installation in solid-insulated cabinets, gas-insulated cabinets, and other ring network switchgear with limited space.

DISTRIBUTION CABINET DEHUMIDIFIER

The Distribution Cabinet Dehumidifier, independently developed by Zhejiang Hangmei Digital Intelligence Technology Co., Ltd., is specially designed for high- and low-voltage switchgear, ring main units, and box-type substations. Equipped with a high-precision humidity sensor, the device continuously monitors ambient humidity in real time and automatically activates the dehumidification function, effectively preventing condensation, discharge, and equipment failures caused by moisture.

SMART CONTROL UNIT

The Intelligent Switchgear Control Device (Digital Type) is a multifunctional, intelligent, dynamic simulation indicator unit. It is designed for indoor switchgear rated from 3 to 35 kV, suitable for various types including central switchgear, handcart switchgear, fixed switchgear, and ring main units.
It can replace traditional primary circuit mimic diagrams, live display units, and automatic heating dehumidification controllers. The device integrates multiple functions such as circuit breaker ON/OFF status indication, energy storage indication, earthing switch indication, handcart position indication, intelligent anti-misoperation voice prompts, and an optional RS-485 communication interface.
Additionally, the device is equipped with a cabinet lighting switch, energy storage switch, remote/local switch, and a circuit breaker ON/OFF transfer switch.