Switchgears for mining industry PREM-GO IV-* series

Purpose

PREM-GO IV-* flameproof distribution field is dedicated for electrical energy distribution in alternating current grids with rated frequency of 50 Hz and operating voltage 6 kV. Primarily in underground mining plants.

Application

PREM-GO IV-* flameproof distribution field is designed for methane-free and methane areas, mining headings classified under methane explosion and coal dust explosion hazard categories.
Equipment will automatically trip-off in case if allowed methane gas concentration will be exceeded.

General characteristics

Flameproof distribution field, PREM-GO IV-* is a field full compartmental in a metal flameproof enclosure, whose components are located in separate compartments of reduced metal partitions. The field is fully assembled with the exception of external connections.
The introduction of cable / wire to the inside of the cover is done by certified busbars and cable entries. Flameproof enclosure "d" provides protection against dust and water to IP 54. Flameproof distribution field PREM-GO IV-* can be configured depending on the type of equipment used, switches the main circuit.
The autonomous version predisposes the flameproof distribution field for installation in the one or multi-section distribution systems.
In order to realize the multifield and sectional distributor the following distribution field versions are foreseen: incoming, outgoing, coupling versions and on-load switch.

Features

• compact panel size and small dimensions,
• operational safety through the elimination of switching faults by mechanical interlocking system, between the lower earth switch and withdrawable part,
• operation surety provided by reliable vacuum or SF6 switching devices,
• fiber optic sensor arc in each compartment field,
• motorized drive of the withdrawable part (option),
• insulation shutters automatically separates the fixed contact while the withdrawable part is being retracted to the test position,full visua
• lization of monitoring the operating and emergency conditions, including the possibility to measure, record and review events,
• possibility of control by the supervision system,
• outgoing control circuits outside the switchgear by central-locking leakage protection,
• insulation resistance control medium voltage cables in the outgoing fields by locking leakage protection,
• casing compartments are mounted on hinges to facilitate opening and closing,
• industrial electroheat in casings field,
• easy and convenient access into the compartments,
• variety of modern protective relays application for example MUPASZ 710 (MUPASZ 710 plus) or multiMUZ-3.

Front view and cross-section of the incoming panel

Technical data

Exemplary schematic diagrams

Product card in pdf formatSwitchgears for mining industry PREM-GO IV-* series plik.pdf

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