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PRODUCT DISPLAY

FZW32-12/24/40.5 Outdoor HV Vacuum Disconnect Load Break Switch

Summary
FZW32-12/24/40.5 Outdoor AC high voltage disconnect vacuum load break switch is a new product adopts domestic existing mature load break switch production expe rience and overseas advanced technology to design and manufacture. the load break switch is composed of disconnect blade, vacuum interrupter and ope~tion mechanism vacuum extinguishing arc, there are merits as strong extinguishing arc ability， reliable performance, long lifetime, small volume, no explosive danger and no pollution to environment. It accords with standards of IEC62271-103 High voltage switches.
Ambient conditions
1. Altitude:≤1000m;
2. Ambient temperature:-30℃-+400℃;
3. Wind speed:≤34m/s;
4. POllution degree:≤IV;
5. Earthquake intensity:≤8 degree;
6. lce thickness:≤10mm.
Model

Technical specification
No. Item Unit Data
1 Rated voltage kV 12/24 40.5
2 Rated current A 630,1250
3 Rated power frequency Hz 50/60
4 Rated peak withstand current kA 50,63
5 Rated short-time withstand current kA 20,25
6 Rated short-circuit duration s 4
7 Rated active load breaking current A 630,1250
8 Rated loop breaking current A 630,1250
9 Rated cable charging current A 10
10 5%rated active load breaking current A 31.5,63
11 Rated power transformer breaking current kVA 1250
12 Rated short-circuit making current kA 50,63
13 Main loop resistance μΩ ≤90 ≤100
14 1min.power frequency
withstand voltage 		Dry phase to phase phase to earth kV 42/50 95
across open contacts kV 49/60 115
Wet phase to phase phase to earth kV 30/40 85
15 Lightning impulse withstand
voltage(peak) 		phase to phase phase to earth kV 75/125 185
across open contacts kV 85/145 215
16 Mechanical life Times 10000 10000
17 Three phase closing asynchronous ms ≤5 ≤5
18 Direction rotating of making contact blade mm ≤2 ≤2
19 Main contact blade pressure N 300±30 420±42
20 Distance between electric Darts and phase to earth mm ≥200 ≥380
21 Rated operating moment Nm ≤300 ≤300


LBS with vacuum arc extinguish chamber
No. Item Unit Data
1 Contact distance mm 5±1 18±1
2 Average breaking speed m/s 1.1±0.2 1.6±0.2
3 Three phase breaking asynchronous ms ≤5 ≤5
4 Three phase making asynchronous ms ≤5 ≤5

Structure feature