Outdoor AC High Voltage SF6 Gas Circuit Breaker LW39-126 Type

Outdoor AC High Voltage SF6 Gas Circuit Breaker LW39-126 Type

General

1.1 LW39-126 type outdoor ACHV poorcelain SF6 circuit breaker is applied i in power system with 50Hz frequency, 110kV system
normal voltage. It is the main power equipment used in power plantand substation for control and protection.
1.2 LW39-126 type outdoor AC нV porcelain SF6 circuit breaker adopts thermal expansion self-arc-extinguish, filled with SF6
gas of well arc-extinguishing and electric insulation performance. All the seals adopt double-circle O type seal ring, which can
effective prevent leakage; equipped with CT30 type spring operation mechanism, three phase mechanical linkage operation.
1.3 LW39-126 type outdoor AC нV porcelain SF6 circuitit breaker is a new type HV SF6 circuiit breaker with high performance,
which is designed according to national standards and domestic industry manufacture level. The main features are as follows:
a.High breaking level, break reliably when outgoing terminal is in short circuit, out of phase and fault in near zone.
b.Structure ofarc-extinguishing chamber is simple, reliable and convenient to maintain.
c.Long service life, have 20 times' breaking ability under full capacity and free of maintenance under normal operation in 10
years.
d.Light operation force, adopts siimple, reliable and compact spring operation mechanism.
e.Rated chargging pressure of gas is low and can be used in low temperature condition.
f.Small occupied area.
g.Low noise level and suitable to apply in residential area.
h.Long overhaul period and less maintenance.
I.Short installation time on the spot.

Service ambient condition

1. Altitude height: ≤3000m;
2. Ambient temperature: ﹣35℃～+40℃;
3. Ambient air may polluted with dust, smoke, corrosion gas, steam and salty fog. The pollution grade can’t beyond II grade of GB/T5582 when altitude is in 3000m, pollution grade may reach IV grade
4. Wind speed: ≤35m/s (correspond to exterior of column 700Pa )
5. Vibration and earthquake come from out of the product may ignored.
6. Other special service condition may settled by the user and manufacture.