The YB6-12/0.4pre-fabricated substation is used as assembly device of power transformation,power distribution,compensation,and protection equipment in the ring network of12kv,double power supply and terminal power supply system rated 12kv. Berides transformer,there is 4-position or 2-position load switch ,protection fuse and plug type fuse on HV side ,there is control and distribution device,compensation device and meters on the LV side,the insulation and arc extinction medium are transformer oil .The transformer and the HV switch equipment are installed inside different oil-cases. The two kinds of equipments is only connected electrically，but separated by different oil-cases. The arc of load switch just make the oil inside the oil-case become blacker or carbonized ,won’t effect the quality of the oil.
The transformer adopts the model S10.This product is equipped with lose-phase protection device .When the lose-phase occurs,it can simultaneously auto-break the incoming load switch of transformer and LV side circuit breaker (general switch),Breaking any of the HV side load switch or LV side load circuit breaker is also permissible ..It has features as small volume,convenient installation and maintenance ,low noise, low consumption,theft guard ,high overload capability and full protection ,etc.it is applicable for those sites as residential areas,city green belt ,park,station,dock,hotel and airport,etc.
Normal working conditions
Environment temperature: -25℃~+40℃,average shall not be higher than +30℃ within 24h.
Relative humidity: daily average shall not exceed 95%, and
monthly average shall not exceed 90%
Earthquake intensity:not beyond 0.4m/s² in horizontal direction not beyond 0.2m/s² in vertical direction.
nstallation & operation:location for installing shall be no fire or
explosion danger, no corrosive gas or dust, no sharp impact.
If you have any requirement,please contact with us and negotiate