CHETA offers a high-voltage switchgear with gas insulation in three-phase version of GFM-126 type and version in segregated-phase arrangement of B-105 type. It is intended for reception, distribution and transfer of electric energy in circuits of AC power, 50 Hz frequency and with voltage of 110 kV and 220 kV, respectively.

Modularity of GIS panels provides the reliability, maintainability, compactness and ease of installation, simplifies operation and performance of various operations, allowing to reduce the cost of installation and maintenance. Arrangement of gas compartments of GIS allows to replace any gas compartment without the need for complete GIS de-energizing.

Main technical data

GIS panel is assembled using modules of high factory readiness.

This cubicle consists of the following modules: input and output insulators, disconnector switch/earthing switch/high speed earthing switch, current transformers, circuit breaker, busbars/disconnector, earthing switch and local control panel.

The panel of the GIS can be produced in two versions: with overhead input/output Main technical data or cable input/output.

In addition to structural safety, the reliability of GIS is also provided by real-time monitoring of the condition of SF6 (controlled parameters: density, humidity, temperature and pressure of the gas) and monitoring the level of partial discharges.

It should be noted that installation costs for GIS construction are slightly higher than for the construction of outdoor switchgear, using the same scheme. However, GIS operating costs due to weak climatic effect and higher reliability of its elements are lower than the operating costs of outdoor switchgear.