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110kv Sf6 Circuit Breaker Load Break Switch for Gird Power Transformer

Price $1000.00
Min Order 1 Piece
Availability In Stock
Shipping From Zhejiang, China
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Model NO.:
SF6-110KV
Breaking Capacity:
High Voltage Circuit Breakers
Operation:
Manual Type
Speed:
Normal Type Circuit Breaker
Arc-extinguishing Medium:
Vacuum
Installation:
Fixed
Structure:
Vacuum
Poles Number:
1
Type:
Circuit Breaker
Function:
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification:
VDE, ISO9001-2000, CE, CB
Trademark:
JUNKE
Transport Package:
Wooden Package
Origin:
Wenzhou
Product Description
110KV SF6 circuit breaker load break switch for gird power transformer 

Main features
Adopt self-extinguish principle, small operating energy, light mechanical impact;
Use spring mechanism, its performance is not relevant to temperature, stable performance;
Optimized interrupter structure and movement curve of contact, high reliability on breaking current;
Reignite and restrike cannot occur under breaking capacitive current;
Optimized pole and frame design with higher capability to endure earthquake;
High reliability, long average normal service time, low maintenance cost;
Convenient installation and configuration in field, it takes only one day or two days;
Low operating noise, suit for residential area.:
Environmental conditions
Installation site
outdoor
Ambient temperature
-25ºC~+40ºC
Max. daily temperature difference
≤25ºC
Height above sea level
2000m(no limit for specified order)
Air humidity
Daily average:≤95%;
month average:≤90%;
Wind speed
≤34m/s
Solar radiation
≤0.1W/cm2(fine day, noon)
Earthquake intensity
horizontal:≤0.3g;vertical:≤0.15g
Icing thickness
≤10mm
Creepage distance
25mm/kV or 31mm/kV
Static load on terminal in Y-direction
1250N
Static load on terminal in X-direction
750N
Static load on terminal in Z-direction
1000N
Main Technical data
No.
                                               Items
       Unit
        Parameter
1
Rated voltage
kV
110KV
2
Rated power frequency withstand voltage(1min)
Phase-to-phase
Phase-to-ground
kV
230
fracture
kV
230+73*
3
Rated lightning impulse withstand voltage
Phase-to-phase
Phase-to-ground
kV
550
fracture
kV
550+103*
4
Power frequency withstand voltage(5min)under SF6 zero-gauge pressure
kV
95
5
Rated frequency
Hz
50
6
Rated current
A
3150
7
Rated short circuit breaking current
kA
40
8
First-pole-to-clear factor
 
1.5
9
Rated short circuit breaking current
(DC component)
 
More than 41%
10
Rated short circuit making current (peak)
kA
100
11
Rated short time withstand current(rms)
kA
40
12
Rated peak withstand current
kA
100
13
Rated short circuit duration
s
4
14
Rated out-of-phase breaking current
kA
3(OP1) ,10(OP2)
15
Short range breaking current
kA
36;30
16
Wrong-phase earthing fault
breaking current
kA
34.8
17
Rated line charging switching current
A
31.5
18
Full capacity breaking time without check and repair
Times
20 or rated current breaking times:3000
19
Rated operating sequence
 
O-0.3s-CO-180s-CO
20
Rated SF6 pressure (20ºC gauge)
MPa
0.6
21
Alarm/Lock pressure(20ºC gauge)
MPa
0.55/0.50
22
SF6 annual leakage rate
%/Y
≯0.5
23
Gas moisture content
Check value
after hand over
μL/L
≯150
Allowed service
value
μL/L
≯300
24
Resistance of the main circuit
μΩ
≤35
25
Mechanical life
Time
6000
26
Radio interference level (1.1Ur/)
μV
≯500
27
Allowed partial discharge intensity(1.2Ur)
pC
≤5
28
Noise(distance from sound source:horizontality:2m,height:1.5m)
dB
90


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