Explosion-proof High-voltage Distribution Field TYPE ROK-6EM/A

Explosion-proof high-voltage distribution field is determined for gassy mines with explosion hazard of methane and coaldust. The field is intended for work in three-phase network with rated voltage of 6 kV. The distribution field type ROK- 6EM/A belongs with its design to the Group I, Category M2 and it is certified by a recognized testing laboratory, under the Certification Protocol No. OBAC 06 ATEX 189X.

The distribution field ROK-6EM/A/ is adjusted both for installation of more such fields in switchboards, and for an individually situated switch.

Power circuit ROK-6EM/A consists of:

two circuit breakers Q1, Q2 with a lever-operated mechanism equipped witha lock and the earthing switch Q3 with manual control. The driving mechanism of the breakers and the earthing switch are interconnected whereas their disconnection is possible,
main power cutoff Q with electro-magnetic drive and insulation SF6 (switch type ROLLARC) or vacuum contactor,
two current transformers T1F, T2F,
three three-coil voltage transformers T3F..T5F secured with safe-fuses SNF1..F3.

Electrical jumpers between chambers with breakers, the main power cutoff (contactor) and connection clamps of the main conduit circuit are made through the use of insulators SN that are at the same time a part of the breakers construction.The run control as well as the inner and outer electric circuits protection, signaling and display of the equipment status are performed by a microprocessor system MUPASZ, eventually MULTIMUZ-SR

The distribution field ROK-6EM/A can be controlled manually or by remote control, eventually from the control-standpoint via a data line – version with visualization.

More info [PDF; 0,08 MB]

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