| Brand | HK Electrical |
| Model NO. | 15kV 27kV 38kV Ring Main Unit Gas-Insulated Switchgear (SF6) |
| Rated voltage | 38kV |
| Rated normal current | 600A |
| Rated frequency | 50/60Hz |
| Series | J |
Description
Our Ring Main Unit (RMU) Gas-Insulated Switchgear is a great option for power distribution applications It offers optimal dielectric strength while maintaining excellent arc-quenching properties for enhanced safety. Customers often base their decision on the type of GIS solution they choose on space limitations. We offer individual tank and combined tank configurations under the following parameters:
| Parameters | Unit | J10X | J10X | J10X | J20X | J20X | J20X |
|---|---|---|---|---|---|---|---|
| Rated Voltage | kV | 15 | 27 | 38 | 27 | 38 | 69 |
| Rated Power Frequency Withstand Voltage | kV | 36 | 60 | 80 | 60 | 80 | 140 |
| Rated Lightning Impulse Withstand Voltage (BIL) Phase to Phase and Phase to Ground | kV | 95 | 125 | 150 | 125 | 150 | 325 |
| Rated Continuous Current | A | 600 | 600 | 600 | 1200 | 3000 | 1200 |
| Rated Short Circuit Current | kA | 20 | 20 | 25 | 31.5 | 40 | 31.5 |
| Rated Peak Withstand Current | kA | 50 | 50 | 65 | 80 | 100 | 80 |
| Rated Frequency | Hz | 60 | 60 | 60 | 60 | 60 | 60 |
| Rated Gas Pressure (20C) | Bar | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Annual Leakage Rate | Year | < 0.1% | |||||
| Operational / Survival Temperature Range* | °C | -25 to +40 / -50 to +60 * | |||||
| Ingress Protection Code: Gas Tank / LV* | IP67 / IP40 * | ||||||
| Altitude* | m | < 2,000 * | |||||
| Internal Arc Class (IAC) – Arc Resistance Code | 1 sec | AFLR | |||||
| Width* | mm/in | 355/14 | 450/18 | 450/18 | 600/24 | 1000/40 | 800/32 |
| Height* | mm/in | 1900/75 | 1900/75 | 1900/75 | 2500/98 | 2500/98 | 2500/98 |
| Depth* | mm/in | 990/39 ~2100/83 depends on power cables entry top / bottom. Max is 6 cables bottom entry, 4 power cables top entry. * | |||||
* please contact JST for non-standard request