Wyłącznik próżniowy 11 kv

General

ZN63(VS1)indoor high-voltage alternating-current vacuum circuit breaker has a frequency of 50Hz and a rated voltage of 12kV.It applies tothe electrical equipment control and protection in industrial and mining enterprises,power plants and substations,particulanty to the places needingfrequent operation.It can be fixed in a switch cabinet or installed on a handcart.

With stable performance and convenient installation,it is the best choice for the control and protection of high-voltage power transmission

and distribution systems.

◆Product Standards

ZN63(VS1)indoor high-voltage alternating-current vacuum circuit breaker is produced in line with the following standards and codes.

● IEC 62271-100 High-voltage alternating-current circuit-breakers

● GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards

● GB 1984 High-voltage alternating-current circuit-breakers

● GB 311.1 Insulation co-ordination for high voltage transmission and distribution equipment

◆Operating conditions

Normal Operating Conditions

● Ambient temperature:-40℃~+40℃(below 35℃ within 24 hours)

● Relative humidity:≤95%(daily average)or ≤90%(monthly average)

● Altitude:≤1000m

◆Technical Parameters

1.1 Parametry techniczne

    Pozycja Jednostka Wartość odniesienia
    Napięcie znamionowe kV 24
ightning impulse withstand voltage kV 145
    Znamionowy poziom izolacji Napięcie wytrzymywane o częstotliwości sieciowej 1min kV 65
    Częstotliwość znamionowa Hz 50/60
    Prąd znamionowy A 630/1250/1600/2000/2500/3150
    Znamionowy prąd zwarciowy kA 20/25/31.5
    Rated short-circuic making current (peak value) kA 506,380 
    Znamionowy krótkotrwały prąd wytrzymywany kA 20/25/31.5/40
    Znamionowy prąd wytrzymywany (wartość szczytowa) kA 506,380 
    Wymagana sekwencja operacji   0-0,3s-CO-180s-CO
    Znamionowy czas trwania zwarcia S 4
    Czasy załączania i wyłączania przy znamionowym prądzie zwarciowym Czasy 30
    Żywotność mechaniczna   Poziom M2
    Zważyć kg 150

◆Transformer capacity and fuse selection

●The fuse can cut off a large short-circuit current in less than 10 ms and its breaking current can be up to 50KA.Thus,it can protect the transformer most effectively.

● In terms of match between the transformer and the fuse (Table 1),the potential surge current of the fuse must be considered.Thus,fusingcurrent of the fuse must be 1.6 times of the rated value;designer must consider possible fluctuations of other parameters of the grid and reservemargins for them.If a fuse is selected for high-voltage motor protection,designer must consider frequency of start of the high-voltage motorbecause frequent starts of the high-voltage motor will result in the fuse’s failure when timely cooling is not available.

◆Fuse Selection

Primary voltage of
the transformer(kV)
Capacity of
the transformer(kVA
Model of the fuse Prąd znamionowy
of the fuse(A)
Model for the domestic market Model for international market
6.6 200 XRNT-10 12kV BDGHC 31.5
250 40
300/315 50
400 12kV BDGHC 63
500 80
630 90

◆Overall And Installation Dimension

Overall dimension of VF(R)-12(wheeled)indoor high-voltage alternating-current vacuum circuit breaker

Wyłącznik próżniowy 11 kv
Cabinet width(mm) P(mm) A(mm) B(mm) C(mm) E(mm) φW(mm)
650 150 500 530 490 203 35
800 210 650 680 640 278 35
1000 275 850 880 840 378 35

◆Actuator Of VS1-24

The actuator employs spring energy storage which can be done electricallyor manually.When the circuit breaker is operating,the energy generated by theenergy stor

age spring is transferred to the connecting rod mechanism throughan output cam and then to the movable contact through the connecting rodmechanism.The advanced and appropriate buffer avoids bounces in breakingand reduces the impact and vibration in breaking.The actuator almost needsno maintenance or adjustment.It can operate for up to 10,000 times.

vacuum-circuit-breaker

◆Overall And Installation Dimension

Overall dimension of VS1-24(wheeled)embedded indoor high-voltage alternating-current vacuum circuit breaker

circuit-breaker
Prąd znamionowy (A) 630 1250 1600
Rated short-time withstand current(kA) 202,531.5  2,531.5  31.5
Stały rozmiar styku D(mm) φ35 φ49 φ55
Odległość międzyfazowa (mm)   275±1.5  
Drive travel(mm)   300±2  

 Overall dimension of VS1-24(fixed)indoor high-voltage alternating-current vacuum circuit breaker(large-current)

circuit-breaker
Prąd znamionowy (A) 2000 2500 3150
Rated short-time withstand current(kA) 31.5 31.5 31.5
Stały rozmiar styku D(mm) φ79 φ109 φ109
Odległość międzyfazowa (mm)   275±1.5  
Drive travel(mm)   300±2

 

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