Generator switchgear HIGS series

medium-voltagevacuumair-insulated

HIGS is the most exhaustive and compact generator switchgear, directly installed at generator terminals, to protect your power unit. Directly installed on generator terminals • Rated nominal current up to 5,000 A • All-in-one solution integrating the generator neutral and main terminal boxes, protection system of the auxiliary transformer and generator circuit-breaker • Minimizing interface, space and erection requirements HIGS helps you reducing interfaces and space requirement while increasing your protection level With its direct connection and installation onto the generator, the HIGS decreases the number of interfaces and saves valuable space with integration into a single system of the generator neutral and line accessory compartment, the protection system of the auxiliary transformer and the generator circuit-breaker. The highly integrated generator switchgear (HIGS) is rated for application up to 5.000 A continuous current and short-circuit ratings up to 72 kA, specifically for Siemens industrial turbines SGT-600 to SGT-800 as well as for steam turbines SST-400 to SST-600. It can also be adapted for other gas and steam turbines. With its air-insulated, metal-enclosed and non-phase segregated design, this generator switchgear integrates vacuum generator circuit-breaker (tested as per IEC/IEEE 62271-37-013) and optionally: line disconnecting switch, earth disconnecting switch on generator side and/ or transformer side, instrument transformers, surge arresters, protection of auxiliary transformer and neutral point treatment.