Indoor Primary Universal Air Insulated Switchgear
Indoor Primary Universal Air Insulated Switchgear
UniAIS 7.2-24 kV IS&T series
UniAIS IS&T air insulated switchgear is:
- A prefabricated metal structure consisting of a galvanized steel body with metal partitions between compartments;
- Indoor installation;
- Single-sided maintenance (two-sided upon request):
- With vacuum circuit breakers;
- With SF6 circuit breakers;
- With vacuum contactors.
UniAIS IS&T replaces the following well-known analogs:
UniAIS IS&T has the following applications:
- Substations of power supply centers;
- The system of own needs and power output of power plants;
- Distribution networks of the energy complex;
- City and municipal networks;
- Oil, coal and gas industries;
- Substations of industrial enterprises.
UniAIS IS&T consisting of:
- High-voltage switchgears and connecting devices;
- Current and voltage transformers;
- Vacuum and SF6 circuit breakers;
- Vacuum contactors;
- Auxiliary devices (surge arresters, earthing disconnectors);
- 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.
UniAIS 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.
UniAIS IS&T technical parameters:
* For rated current up to 1000 А, Isc up to 20кА.
** For rated current up to 1250 А.
*** For rated current over 2000А and aux PT cabinet over 40kVA.
** For rated current up to 1250 А.
*** For rated current over 2000А and aux PT cabinet over 40kVA.
**** For cabinets with incoming/outgoing backside busbars.
