КРУЭ 110 кВ, 220 кВ


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CHETA, Llc is one of the biggest
official distributors of GE Consumer
& Industrial in Russia.

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CHETA LLC Production GIS 110 kV, 220 kV
GIS 110 kV, 220 kV Print

GIS - is high-voltage switchgear gas-insulated three-phase version of the type GFM-126, and in phase design type B-105, intended for reception, distribution and transmission of electric energy in AC power, frequency 50 Hz and with voltage of 110 kV and 220 kV, respectively.

Modularity of panels of complete switchgear gas-insulated provides the reliability, maintainability, compactness, ease of installation, simplifies operation and performs various operations, allowing reducing the cost of installation and maintenance. Arrangement of gas compartments of the GIS allows the replacement of any gas-panel without the need for full GIS shutdown.

Main technical data

Parameter item Parameter value
Type GFM-126 B-105
Enclosure design three phase single-phase
Rated voltage, kV 126 252
Rated current, A 2500/3150 2000/4000
Rated frequency, Hertz 50 50
Power frequency test voltage/1 minute, kV 230 up to 530
Test voltage of lightning impulse/1min., kV 550 1050
Rated breaking current, kA 40 up to 63
Short-time thermal current 40 кА/4 s up to 63 кА/3 s
Drive type hydraulic/spring spring
Mechanical durability at rated short-circuit current 20 up to 20
Mechanical durability of breaker 10 000 10 000
Mechanical durability of disconnect switch 10 000 2 000
Mechanical durability of earthing device 10 000 2 000
The temperature of the environment from -25°С up to +40°С from -25°С up to +40°С

GIS panel is assembled using modules of high factory readiness.

This panel consists of modules: insulators input-output, block disconnector/earthing switch/high speed earthing switch, current transformers, circuit breaker,busbars/disconnector, earthing switch, control Panel.

The panel of the GIS can be performed in two versions: with overhead input/output or cable input/output.

In addition to structural reliability the reliability of GIS is also provided by real-time monitoring of the condition of the electronegative gas (the parameters to be controlled are density, humidity, temperature and pressure of the gas) and monitoring level of partial discharges.

It should be noted that capital costs for the construction of the GIS slightly higher than for the construction of outdoor switchgear, using the same diagram. The operating costs on GIS due to small climatic effects and higher reliability of its elements is lower than the operating costs of outdoor switchgear.

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