It meets IEC298, IEC60420, IEC60265, GB 3906, GB3804, GB16926 standards. The switchgear has reliable fault operation prevention function.
FeaturesSF6 gas is adopted as insulating and arcing medium. The arcing mode is constant magnetic field rotating arc, so its arcing ability will not be affected by magnitude of arc and current. Besides, it has good breaking capacity, small over-voltage, long electrical life and maintenance-free arc extinguish chamber. -Advanced GSC series (SIC and SQC type) indoor SF6 load break switch and composite apparatus are adopted. It has three positions:"closed", "open", "earthed".
Specification:
Item | Unit | Parameters | ||
Rated voltage | KV | 12 | 24 | |
Rated frequency | Hz | 50 | ||
Rated current | A | 630/1250 | ||
Rated load breaking current | A | 630 | ||
Rated short time withstand current (effective value) | A | 20/31.5 | ||
Rated short circuit duration | S | 3 | ||
Rated short circuit making current | KA | 50 | ||
Rated peak withstand current | KA | 50 | ||
Rated cable charging breaking current | A | 10 | ||
Rated active load and close circuit breaking current | A | 630 | ||
MAX transfer current | A | 1750 | ||
Earthing switch short time withstand current (2s) | KA | 17.4/20 | ||
Rated current breaking times | Times | ≥10 | ||
Load break switch mechanical life | Times | ≥5000 | ||
Earthing switch mechanical life | Times | ≥2000 | ||
1 min power frequency withstand voltage | Common value | KV | 42 | 55 |
Across insulate distance | KV | 48 | 65 | |
Lightning impulse withstand voltage | Common value | KV | 75 | 125/150 |
Across insulate distance | KV | 85 | 150/160 | |
Operating mechanism |
| Manual or motor | ||
Operating voltage | V | AC/DC 220/110, DC48/24 | ||
Protection degree |
| IP3X | ||
