Mining Flameproof & Intrinsically Safe LV Vacuum Feeder Switch (Permanent Magnet Type)

Product Features

1. Adopts a quick‑opening door structure and a drawer‑type frame chassis, offering a compact design that facilitates easy inspection and maintenance.

2. Equipped with a microcomputer‑based integrated monitoring and control device, featuring a large‑screen Chinese LCD display and menu‑driven operation. The display provides rich information and a user‑friendly interface. Together with the human‑machine operation keyboard, it allows modification of protection settings and various operations without power interruption.

3. Capable of real‑time measurement and display of system parameters such as grid voltage, three‑phase current, insulation resistance, zero‑sequence voltage, zero‑sequence current, active power, reactive power, and power factor. It also displays fault type, fault parameters, and fault occurrence time, and features fault memory and query functions.

4. Provides comprehensive protection functions including overload, short‑circuit, earth leakage, earth leakage lockout, overvoltage, undervoltage, phase loss, three‑phase imbalance, and overvoltage absorption.

5. Features selective earth leakage protection, wind‑power and gas interlock, and electric energy metering functions.

6. Equipped with a standard intrinsically safe RS‑485 communication interface. When integrated into a mine monitoring and control system, it enables "four‑remote" functions (telemetry, remote control, remote signaling, and remote adjustment), including remote opening/closing and remote meter reading, supporting unattended substation operation.

7. The intrinsically safe keyboard allows convenient access to functions such as setting modification, protection testing, information query, and operating mode selection.

8. Provides isolation functionality, allowing the switch body to be completely disconnected from the main circuit input/output terminals in the wiring compartment. After the door is opened, all circuits and components of the main body are safely de‑energized.

Product Parameters