Primary Gas Insulated Switchgears

Primary Gas Insulated Switchgears
PGIS 7.2-40.5 kV IS&T series

PGIS 7,2-40.5 kV IS&T is:

  • A prefabricated metal structure consisting of a galvanized steel body with metal partitions between the compartments;
  • With a stainless steel gas-insulated tank;
  • Indoor installation;
  • Front-sided or back-sided maintenance;
  • Single or double main busbar system;
  • With vacuum circuit breakers;
  • With load break switches;
  • With motor operation disconnectors.
PGIS 7,2-40.5 kV IS&T replaces the following well-known analogs:

PGIS 7.2-40.5 kV IS&T has the following applications:

  • The system of own needs and power output of power plants;
  • Distribution networks of the energy complex;
  • Oil, coal and gas industries;
  • Sea oil and gas platforms;
  • Sea wind turbines;
  • Substations of industrial enterprises.

PGIS 7.2-40.5 kV IS&T consisting of:

  • High-voltage switchgears and connecting devices;
  • Current and voltage transformers;
  • Vacuum circuit breakers in SF6 insulation;
  • Load break switches in SF6 insulation;
  • Auxiliary devices (cable adapters, main busbar adapters, surge arresters);
  • Protection, monitoring and control units for each cabinet:
  • Protection relays and automation devices;
  • Predictive systems (contacts temperature control, acoustic sensors for partial discharge, etc.)
  • Systems designed according to the Customer's technical specifications.
  • For the substation as a whole:
  • Auxiliary needs systems (APS/PSN) and operational current (DC current panels);
  • Relay protection and automation systems;
  • Automation, telemechanics and telemetry panels and boards;
  • Counter panels and boards;
  • Communication panels;
  • Dispatcher's workstation;
  • Intersystem communications.

PGIS 7.2-24 kV IS&T for digital substations and SmartGrid systems:

  • Integration of all secondary devices using a single IEC-61850 protocol;
  • Use of a single connection controller with automation, telemechanics and telemetry. Protection relay, monitoring devices, Feeder fault sensor, digital sensors - are connected to the control panel;
  • Acoustic partial discharge sensors and cable joint condition monitoring system;
  • Digital current sensors;
  • Digital voltage sensors;
  • Innovative Feeder Fault Detection system.
PGIS 7.2-40.5 kV IS&T technical parameters:
*Width is calculated as:
             - 500 mm for 630A;
             - 600 mm for 630-1250A;
             - 800 mm for 1600-2500A;
             - 1000 mm for 2500-3150A;
**Depth is calculated as:
             - 1300 mm - for front side maintenance;
             - 1700 mm for double-side maintenance;
             - 2100 mm for double busbar system;
***Height is calculated as:
             - 1950 mm without Relay partition;
             - 2400 mm with Relay partition;