Fz (R) N25-12D Indoor Vacuum Load Break Switch with Fuse

FZ(R)N25-12D Indoor Vacuum Load Break Switch with Fuse
1.General
1.1Ratings: Rated voltage up to 12kV, Rated current up to 630A, AC50HZ
1.2 Application: for the control and protection of substation and equipments; making and breaking short-circuit current under various operating status of electric network.
1.3 Standard: IEC62271-105
2. Type and Interpretation:
2.1 Vacuum Load switch
FZ(R)N25-12D
FZ:Vacuum load switch
R;With limit current fuse
N:INDOOR
25:DESIGN NO.
12:RATED VOLTAGE
D: EARTHING SWITCH
3. Working Condition
3.1 Ambient air temperature: -25ºC~ +40ºC
3.2 Altitude: ≤1000m
3.3 No operating in such places as subject to dust, smog, corrosive/flammable gas, vapor and salt pollution.
3.4 Relative humidity: Daily average 95%
Monthly average 90%
3.5 Water vapor pressure: Daily average
Monthly average 1.8kPa
3.6 The external shocking and earthquake from the switchgear and control equipment
could be neglected.
3.7 The amplitude of electromagnetic interference in the secondary system 1.6kV
Note: Customized products for other special working conditions are available on your requirements.
4. Features:
Easy operation and installation
Connection combination is simple and convenient
Insulation and sealed structure,
Reliable interlock, compact design
5. Operating mechanism
5.1 Manual Spring operation mechanism(Fig.1)
5.2 Electric Spring operation mechanism(Fig.2)
(Operation voltage: AC220V, DC220V)
6. Main Technical Parameter
ItemUnitDataFZN25-12D/T630-20FZN25-12D/T125-31.5Rated voltagekV12Rated frequencyHz50Rated currentA630125Rated insulation level1min power frequency with stand voltage(Phase to earth, between poles, open contacts)kV4248Rated lightning impulse withstand voltage(Phase to earth, between poles, open contacts)kV7585Rated peak withstanding currentkA504S rated short-time withstanding currentkA /s20/Earthing switch rated short-time withstanding current/Rated short-circuit duration timekA/s20/4/Rated breaking currentPower load breaking currentA630/Close loop breaking currentA630/Breaking cable charge currentA31.5/Breaking no-load transformer capacitykVA12501250Rated short-circuit breaking currentkA/31.5Breaking transfer currentA/3150Fuse type/SDLAJ-12,SFLAJ-12Shocking input energyJ/3-5Rated short-circuit making currentkA5080(expected)Earthing switch rated withstand current(peak)kA5050Earthing switch 4S rated short-time withstand currentkA2020Auxiliary circuit rated voltageV220:110220:110Mechanical life(grade M2)times20000