If internal arcing occurs, the housing has an internal structure weak point, it will be rushed to open, followed by the cabinet above the shutter release arc red open air overpressure stream-oriented outside the cabinet, ensure that the switch cabinet security checks.
Load break switch sets closing, opening, earthing three at one, filled with SF6 gas encapsulated in epoxy resin housing, three-position interlock, have compact structure.
Small size, light weight, maintenance-free, easy and safe to operate.
FLN36-12D/T630-20 load switch uses SF6 gas as insulation and arc extinguishing medium; has three positions: closing, opening, and grounding; dynamic and static contacts have double-break isolation, higher reliability; extended electrical life (E3 level, rated current 100 times); extended mechanical life (M2 level, 5000 times); rated thermal stability current (4s) 20KA; closing and opening positions are electric or manual operation, and the grounding position is manual operation; the electric operation power supply is available in AC220V, AC110V, DC220V. DC110V, DC48V, DC24V; has electric and manual operation interlocking, and operation power supply polarity reverse connection protection function;
Its performance indicators fully comply with IEC420, 694, 129 and national standards GB3804-2004 “3.6kV-40.5kV high-voltage AC load switch”, GB1985-2004 “High-voltage AC disconnector and earthing switch”, GB/T11022-1999 “Common technical requirements for high-voltage switchgear and control equipment standards”, and are the main switch components of ring network cabinets.
| No. |
Item | Unit | Data | ||
| FLN36-12D/T630-25 | FLRN36-12D/T1250-31.5 | ||||
| 1 | Rated voltage | kV | 12 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated current | A | 630 | 1250 | |
| 4 | Rated active load breaking current | 630 | |||
| 5 | Rated closed loop dropout current | 630 | |||
| 6 | Rated transfer current | 1700 | |||
| 7 | Lightning impulse withstand voltage(peak) | kV | phase to earth, between phase 75, fracture 85 | ||
| 8 | 1min power frequency withstand voltage | phase to earth, between phase 42, fracture 48 | |||
| 9 | Rated short-time withstand current(2s) | kA | 25 | ||
| 10 | Rated peak withstand current | 63 | |||
| 11 | Rated short-circuit closing current(peak) | 63 | 80(expected) | ||
| 12 | Fuse type | S LAJ-12 | |||
| 13 | Output energy of impactor | J | 1+0.5 | ||
| 14 |
Mechanical life | Load switch | time | 5000 | |
| Earth switch | 2000 | ||||
Dimensions
Equip your business with long-lasting switchgear components that respond to your needs and smoothen electrical operations at affordable costs.
Since 2011, Liyond has been dedicated to designing and manufacturing reliable and superior switchgear components, whilst providing impactful solution to customers all over the world.
Sign up to get regular product updates and promotion offer.
English
Russian