Payment & Shipping Terms:
|Model Number:||FN12-12(D)||Type:||High Voltage Load Break Switch|
|Rated Voltage:||12kV||Rated Current Major Loop(A):||630A 100A|
|Lighting Impulse Resisting Voltage:||75/85 KV||Poles Number:||3|
It is a three phase H.V. switch equipment of 12KV, 50Hz for breaking or closing load current., no-load transformer cable charging current and closing short-circuit current. The load switch with earth switch can bear short-circuit current. It is made up of FN12-12D load switch and S()LAJ-12(XRNT()-10) H.V. current-limiting fuse box. It can break any current, load switch breaking working current and fuse box breaking short-circuit current, jointly breaking any current between short-circuit current. Meantime, fuse box make the switch off of with the striker.
a. GB3804-90 <<3-63KV AC H.V load switch>>.
b. GB16926-1997 <>(eqv, IEC62271-2002).
c. GB1995-89 <>.
Environmental conditions for operation
A. The ambient air temperature: Max.: +40 °C. Min: -10 °C.
B. The altitude ≤ 1000m.
C. The relative humidity of air. daily average ≤ 90%. monthly average ≤ 95%.
D. The ambient air should not be obviously polluted by corrosively or the flammability gas and gleam. etc.
E. Without frequent shake.
F. Environment degree: grade Ⅱ.
If requirements are not mentioned above, users can fix them with the manufacturer.
Model and Meaning
Technical Parameter and Performances
|4||Lighting impulse resisting voltage||kV||75/85|
|5||1min power frequency with stand voltage||kV||42/48|
|6||Rated heat - stability current||kA||20(4S)|
|7||Rated machine-stability current||kA||50|
|8||Rated closing current (peak)||kA||50|
|9||Rated short-circuit breaking current||kA||31.5|
|10||Rated transfer current||kA||1.5|
|11||Max. breaking current||kA||1.8|
|12||Breaking no-load transformer capacity||Kva||1250|
|13||Rated cable charging current||A||10|
|14||Rated power load current breaking times||time||>100|
|15||Switch-off time of rated power load current switch on-and-off||S||>0.06|
|16||Earth switch heat-stability current||kA||20(2S)||20(2S)|
|17||Earth switch heat-stability current (peak)||kA||50||50|
|18||Motor operating power voltage||V||AC220,DC48|
Contour and installation dimension