Audited Supplier
SF6-110KV
High Voltage Circuit Breakers
Manual Type
Normal Type Circuit Breaker
Vacuum
Fixed
Vacuum
1
Circuit Breaker
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
VDE, ISO9001-2000, CE, CB
JUNKE
Wooden Package
Wenzhou
Product Description
110KV SF6 circuit breaker load break switch for gird power transformer Main features
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 | ||
