Gtxgn-12/24 - Painel de distribuição de rede em anel com isolamento sólido

GTXGN Painel de distribuição de rede em anel com isolamento sólido

GTXGN-12/24 series solid insulated ring network switch cabinet is the main unit switch of solid composite insulated ring network used in medium voltage distribution network.

New environmentally friendly materials Vacuum arc extinguishing Direct-acting isolation switch

GTXGN-12/24 series solid insulated ring network switch cabinets are the main switch units of solid-composite-insulated ring networks in medium voltage distribution — vacuum arc interruption and a direct-acting isolation switch encapsulated in new environmentally friendly insulating materials. No position in the cabinet depends on gas insulation, which makes the family the natural answer where environmental rules or corporate policy restrict SF6 equipment.

We build solid-insulated ring cabinets to your network configuration — unit arrangements, cable positions, and automation options assembled under the same quality system that has delivered 4,000+ projects since 2010, with in-house CNC fabrication, wiring, and testing through to shipment.

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Technical Parameters

ProjectunitsParameters
Rated voltagekV1224
Rated currentA630630
Frequência nominalHz5050
Rated insulation levelOne-minute power frequency withstand voltage:
ground, phase-to-phase isolation/fracture		kA42/4865/75
Lightning impulse withstand voltage:
ground, phase isolation/fracture		kA75/85125/145
Rated short-time withstand current (main circuit and ground circuit)A2525
Rated peak withstand currentkA5050
Rated short circuit durationtimes33
Rated dynamic stable currentA5050
Rated current of fuse circuit (maximum)s125125
Rated transfer currentA17001700
Vacuum circuit breaker breaking capacitykA2525
Load switch mechanical lifeTimes50005000
Vacuum circuit breaker mechanical lifeTimes1000010000
Grounding switch mechanical lifeTimes20002000
Operating supply voltageV24V DC24V DC
220V AC/DC220V AC/DC

Technical Parameters

  • New environmentally friendly materials

  • Vacuum arc extinguishing
    Direct acting isolation switch

  • Fully sealed, fully insulated cable entry and exit lines

  • Modular and scalable

  • Various wiring options

  • Visible fracture

  • Electrically operated, FTU

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Key Specifications & Options

The configuration below reflects the options we build to order for GTXGN-12/24 solid insulated ring network switch cabinets. Every parameter can be adjusted to match your drawings and site conditions — send us your requirements and our engineers will confirm what applies to your project.

ParameterOptions / Typical Range
Rated voltage12 kV / 24 kV distribution systems
Arc interruptionVacuum interrupters for switching duty
DisconnectorDirect-acting isolation switch with clear position indication
Insulation systemSolid composite environmentally friendly insulating materials — gas-free construction
Unit arrangementRing-in, ring-out, and transformer tee-off units combined per network position
EarthingIntegrated earthing switch positions per unit configuration
Applicable standardsGB 3906 corresponding to IEC 62271-200
Typical applicationsSF6-free ring main units, compact substations, environmentally restricted sites, distribution automation

Perguntas mais frequentes

Solid insulation or gas-filled construction for a ring main unit?

Solid insulation seals the switching function in cast insulating material — no gas inventory to monitor, no pressure alarms, and no SF6 accounting; gas-filled cabinets remain more compact per bay and are the long-proven route. Both meet GB 3906 / IEC 62271-200; the choice follows site conditions and environmental policy.

What maintenance does a solid-insulated unit need?

The encapsulated vacuum interrupter and disconnector are essentially maintenance-free over long intervals; service work concentrates on mechanisms, interlocks, and cable connections, which remain accessible. We provide the inspection schedule with the delivered units.

Does the direct-acting disconnector give a visible isolation position?

It gives a defined, indicated isolated position driven by a straight-line operating mechanism — the position indication is engineered for the switching sequence it serves. For supply-isolation procedures, follow the operating instructions delivered with the cabinet.

Which standards apply?

The cabinets are designed to GB 3906, corresponding to IEC 62271-200 for metal-enclosed MV switchgear. We reference the standards in design and deliver test and routine documentation with each unit.

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