| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Energy-storage Type |
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Audited Supplier Audited by an independent third-party inspection agency
Service and Installation Conditions
Ambient temperature: -30ºC~+40ºC(special order - 50ºC~+40ºC)
Altitude:≤1000m(No limitation for special order)
Humidity:
Relative humidity at average per day (25ºC): ≤95%
Relative humidity at average per month:≤90%
Saturation vapour pressure: Daily average ≤ 2.2×10MPa
Monthly average ≤ 1.8×10MPa
Wind pressure: ≤ 700Pa
Icing thickness: 10mm
Seismic intensity:
Horizontal acceleration:≤ 0.3g
Vertical acceleration:≤ 0.15g
Sunshine intensity: 0.1w/cm (at wind velocity of 0.5m/s)
Max. daily temperature rise: 25ºC
Symmetrical Creepage distance: 31mm/kV
Protection class: IP54
Keep the breaker away from places with combustible, explosive, corrosive materials and violent vibrations
|
Serial number |
Parameter |
Unit |
Value |
|
|
1 |
Rated voltage |
kV |
252 |
|
|
2 |
lmin power frequency withstand voltage (RMS, dry test, wet test) |
between fractures |
kV |
460+145 |
|
Interpole or pole-to-earth |
kV |
460 |
||
|
3 |
Lightning impulse withstand voltage between fractures (peak value) (full wave 1.2/50 µs) |
between fractures |
kV |
1050+ 200 |
|
Interpole or pole-to-earth |
kV |
1050 |
||
|
4 |
When SF6 gas has zero gauge pressure, 5min power frequency withstand voltage (effective value) |
between fractures |
kV |
220 |
|
pole to earth |
kV |
220 |
||
|
5 |
Rated frequency |
Hz |
50 |
|
|
6 |
Rated current |
A |
4000 |
|
|
7 |
Rated short-circuit breaking current |
kA |
40 |
|
|
8 |
Rated short-time withstand current |
kA |
40 |
|
|
9 |
Rated peak withstand current |
kA |
100 |
|
|
10 |
Rated short duration |
S |
3 |
|
|
11 |
Rated short-circuit making current (peak value) |
kA |
100 |
|
|
12 |
Near zone fault breaking current |
kA |
30/36 |
|
|
13 |
Rated line charging breaking current |
A |
125 |
|
|
14 |
Rated out-of-step breaking current |
kA |
10 |
|
|
15 |
Cumulative breaking times at rated short-circuit breaking current |
Second-rate |
20 |
|
|
16 |
first opening factor |
|
1.3 |
|
|
17 |
Nominal Operation Sequence |
|
Points-0.3s-Combined points-180s-Combined points |
|
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