HXGN-10 Ring Main Switchgear is an indoor ring main arrangement for medium-voltage distribution. Read the load-switch and switch-fuse columns separately; the model designation and equipment rated voltage describe different identifiers.
HXGN-10 Ring Main Switchgear Specifications
Main Electrical Ratings
| Parameter | Unit | Load-switch cabinet | Switch-fuse cabinet |
|---|---|---|---|
| Rated voltage | kV | 12 | 12 |
| Rated frequency | Hz | 50 | 50 |
| Main busbar rated current | A | 400 / 630 | 400 / 630 |
| Load-switch rated current | A | 400 / 630 | — |
| Maximum fuse rated current | A | — | 80 |
| Rated peak withstand current | kA | 31.5 / 40 / 50 | — |
| Rated short-circuit making current (peak) | kA | 31.5 / 40 / 50 | — |
| Active-load breaking current | A | 400 / 630 | — |
| Closed-loop breaking current | A | 400 / 630 | — |
| Cable-charging breaking current | A | 10 | — |
| Transfer breaking current | A | — | 1000 |
| Power-frequency withstand voltage: phase-to-phase / earth and isolating distance | kV | 42 / 48 | 42 / 48 |
| Lightning impulse withstand voltage: phase-to-phase / earth and isolating distance | kV | 75 / 85 | Confirm for selected switch-fuse configuration |
| Degree of protection | IP | IP3X | IP3X |
Service Conditions
| Parameter | Condition |
|---|---|
| Altitude | ≤ 1000 m |
| Relative humidity | ≤ 90% at +25 °C |
| Installation | Indoor; no conductive dust, corrosive chemicals or severe contamination |
| Mechanical environment | No severe vibration; installation inclination ≤ 5° |
Select cabinet ratings and fuse coordination for the intended circuit. A dash indicates that the source does not specify a value for that configuration.
Selection questions for HXGN-10
How do the load-switch and switch-fuse columns differ?
They describe different circuit arrangements. Select the switching/protection function, transformer or feeder duty and coordination requirements first. A fuse limit is not a busbar current rating, and a dash is not a value to copy from the adjacent column.
Why does the HXGN-10 table show 12 kV?
The model designation and equipment rated voltage are different identifiers. Read the system voltage and equipment rating guide alongside the project specification. Frequency, insulation, fault duty and service conditions also need to match.
Compare other medium-voltage equipment by circuit function. Include the ring arrangement, required protection, cable interfaces and acceptance documents with the enquiry inputs.