Integrated gas-insulated switchgear application for 145 - 420 kV
Modular GIS in prefabricated housing
Integrated gas-insulated switchgear application (IGA) is a predesigned, standardized and fully integrated configuration based on Hitachi Energy's well proven GIS technology. The IGA provide substantial reduction of installation time compared to conventional substations. It is the ideal solution for customers in need of substations that can be quickly energized for grid expansions, backup or emergency power needs, and for short installation time requirements.
The IGA package comes with all primary and secondary equipment including control, protection, monitoring and communication completely installed in the prefabricated housing. Due to its prefabricated design and short deployment time, it is ideal for applications in the oil, gas and mining industries where it can be easily transported to the sites.
Applications
- Emergency and replacement feeder bay units for utilities
- Oil and gas industry
- Mining industry
- Onshore and offshore wind farm grid connections
- Remote installations
- Extreme temperature requirements and harsh environments
- Trailer mounted switchgear
Why Hitachi Energy?
- Proven GIS technology over five decades
- Worldwide footprint and experience
- Quick delivery and installation time due to prefabricated design
- Reduced project interfaces resulting in lower risks of delay
- Significant total project cost savings from reduced on-site work
- Substantial space savings compared to conventionally built AIS substation
- Can be easily deployed in challenging and hazardous site installation conditions
- Modular design makes it effortless to transport between sites
Brief performance data
| Integrated gas-insulated switchgear application (IGA) | |||||
|---|---|---|---|---|---|
| Rated voltage [kV] | 145 | 170 | 245/253 | 300 | 420 |
| Rated frequency [Hz] | 50/60 | ||||
| Rated short-duration power-frequency withstand voltage (1 min) [kV] | 275 | 325 | 460 | 460 | 650 |
| Rated lightning impulse withstand voltage (1.2/50 µs) [kV] | 650 | 750 | 1050 | 1050 | 1425 |
| Rated switching impulse withstand voltage (250 / 2500 µs) [kV] | - | - | - | - | 1050 |
| Rated normal current – busbar / feeder [A] | 3,150 | 4,000 | 3,150 | 4,000 | 5,000 |
| Rated short circuit-breaking current [kA] | 40 | 63 | 50 | 63 | 63 |
| Rated short-time withstand current (up to 3 s) [kA] | 40 | 63 | 63/50 | 63 | 63 |
| Rated peak withstand current [kA] | 104 | 164 | 135 | 135 | 170 |
| Number of circuit breaker bays in one transport unit | Up to 5 | Up to 4 | Up to 2 | Up to 2 | 1 |
| Bay width [mm] | - | ||||
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