| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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SFG is an SF6 insulated three-position (close, open, earth on) switch disconnector. All electrically
active parts, including the earthing switch, are in robust epoxy resin housings filled with SF6 (1.45 bar). SFG is a virtually maintenance-free, sealed-for-life (30 years) SF6 unit. Simple and reliable mechanisms in a stainless steel enclosure offer high mechanical endurance. For the SFG, 1000 close/open and 1000 open/earth operations are guaranteed.
mechanism
There are two types of operating mechanisms:
the single spring type and the double spring type. Motor can be added to both types of operating mechanisms.
standards
SFG load break switches meet the following standards:
IEC 60265-1
IEC 60694
IEC 60129
IEC 60420
IEC 60282-1
IEC 62271-102
IEC 62271-105
1---busbar compartment| Item | Unit | Data | ||
| Rated voltage | KV | 12 | 24 | |
| Rated frequency | HZ | 50/60 | ||
| Rated current | A | 630 | ||
| Rated load breaking current | A | 630 | ||
| Rated cable charging breaking current | A | 10 | ||
| Rated short circuit making current | KA | 50 | ||
| Peak withstand current | KA | 50 | ||
| Rated short circuit withstand current | KA | 20 | ||
| Rated short circuit duration | S | 3 | ||
| Power frequency withstand voltage | Between phases, phase towards ground | KV | 42 | 50 |
| Across isolation distance | 48 | 60 | ||
| Lightning impulse withstand voltage | Between phases, phase towards ground | KV | 75 | 125 |
| Across isolation distance | 85 | 145 | ||
shipping
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