LW8-40 outdoor High-voltage circuit breaker

Short Description:

Specification:10-200 USD/PIECEUse Parts:1 PIECESupply Ability:1000 PIECEPayment Terms:TT , LC , Others Tags:


Product Detail

Product Tags

StandardsGB/T28001-2011 idt OHSAS18001:2007

Application

Actastheprotectingandcontrollingunitforgridequipmentsandindustrialminingenterprises’equipments,LW8-40.5 type outdoor SF6 circuit breaker is an outdoor device used in AC 50HZ three-phase 40.5KV power system.It is applicable to locations that need frequent operating in rated current or under repeatedly on/off short circuit current. Containing the current transformer for measurement and protection, it can directly replace SW2-35 less oil circuit breaker and various types of oil circuit breaker with transition bracket. It can also be used as a tie breaker and switching capacitor group situations with CT14 type spring mechanism.

Standards

GB1984

GB/T28001-2011 idt OHSAS18001:2007

GB/T24001-2004 idt ISO14001:2004

Features

Excellent breaking performance, short burning arc time, long life;

Mechanical life of more than 3000 times;

Operation frequently, each can be installed 12 current transformers;

New type SF6 MKZ pointer type density meter, pressure gauge reading is not affected by temperature changes;

Environmental Condition

Ambienttemperature:-30℃~+40℃

Altitude:≤3000m

Wind pressure:≤700Pa

Relative humidity:daily average relative humidity: ≤95%;monthly average relative humidity≤90;daily average saturated vapor pressure ≤2.2KPa;monthly average value ≤1.8KPa

Air pollution level:Ⅲ

Earthquake intensity:≤8 degree

The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution

Main Technical Parameters

Description Unit Data
Ratedvoltage KV 40.5
Ratedinsulationlevel Lightningimpactwithstandvoltage(fullwavepeak) 185/215(isolatingbreak)
1minpowerfrequencywithstandvoltage 95
Ratedcurrent A 1600 2000
Meachanicallife Times 3000
RatedSF6gaspressure(at20) Mpa 0.45
Self-lockingpressure(at20) 0.45
Lowestworkingambienttemperature -30
Ratedshortcircuitbreakingcurrent KA 25 31.5
Ratedshortcircuitmakingcurrent(peak) 63 80
Ratedshortwithstandcurrent(Thermalsteadycurrent) 25 31.5
Ratedpeakwithstandcurrent(dynamicsteadycurrent) 63 80
Ratedout-of-phasebreakingcurrent KA 63 80
Durationofratedshortcircuitcurrent S 4
Closingtime(atratedoperatingvoltage) ≤1
Openingtime(atratedoperatingvoltage) ≤0.07
Ratedoperatingsequence (O)-0.3S-(CO)-180S-(CO)
Ratedbreaking/makingsiglecapacitorcurrent A 400
Nosofbreakingratedshortcircuitbreakingcurrent times 15 10
Yearlygasleakege %/years ≤1
WatercontentinSF6(at20) PPM(V) ≤150
Ratedvoltageofassembiedspringoperatingmechanism V -220
Voltageofclosingcoil,openingcoil AC:220
DC:220
Voltageofchargingmotor V AC:220
DC:220
SF6Weight KG 8
Breakingweightincludingoperatingmechanism 1400

Note:Please contact the factory to confirm the latest parameters

Outline and installation dimension

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