Hybrid compact switchgear assembly
HYpact is a hybrid compact switchgear assembly that typically consists of circuit breakers, disconnectors, and earthing switches located in a common gas tank. Current and voltage transformers can be added and the standard SF6 to air bushings can be replaced with cable connectors. Its modular design allows for a large variety of different layout configurations and enables a more economical substation design.
HYpact is well suited for heavily polluted environments and is the high-performing choice in regions exposed to seismic activity. Its compact design with low center-of-gravity is ideal for withstanding seismic acceleration, as proven by shaking table tests and finite elements method simulations. HYpact customers also benefit from long maintence-free periods with reduced exposure to environmental influences and a low number of bushings and moveable contacts.
HYpact assembly enables more economical substation design and operation, with savings to be achieved in space consumption, preparation planning, transport and at-site installation, switchyard cost and maintenance. Operators also choose HYpact where space is ample to benefit from the long maintenance periods. Compared to conventional air insulated substations, the maintenance-free periods of substations using HYpact can be tripled or even quadrupled.
In addition to savings in space and maintenance, HYpact largely reduces the switchgear’s exposure to environmental influences, thus providing an economic alternative to gas-insulated substations in places being heavily polluted, or under extreme weather conditions.
The HYpact hybrid compact switchgear assembly is uniquely suited for a variety of situations, including space constrained installations and use in polluted or seismic environments. In addition, it also qualifies for mobile applications, either installed on trailers or on skids.
Due to the low number of bushings and the avoidance of movable contacts, pure SF6 gas Hypact units perform well in harsh climates, even under heavy snow and ice load, or at temperatures as low as -60°C (GOST FK certification).