Factory direct sales YBM-12/0.4 prefabricated community box transformer with reliable quality

额定电压：

12KV

额定电流：

630A

额定频率：

50HZ

& Overview of residential box transformer products:
Among European box transformers, the transformer can be either an oil-immersed transformer or a dry-type transformer. However, due to the higher price of dry-type transformers, if the user does not have special requirements, , oil-immersed transformers should be preferred to reduce manufacturing costs. The transformer capacity is generally suitable and the maximum should not be exceeded.
Residential box transformer product uses:
Urban power grid transformation, residential quarters, high-rise buildings, industries and mines, hotels, shopping malls, airports, railways, oil fields, docks, highways and temporary power facilities and other indoor and outdoor places .
Community box transformer
Conditions of use:
. Altitude does not exceed
. Ambient temperature: + degrees Celsius
. Relative humidity: daily average value is not greater than %, monthly average The value is not greater than %
. Installation place: a place without fire, explosion hazard, conductive dust, chemical corrosive gas and severe vibration. If the above conditions are exceeded, the user can negotiate with our company.
Product structure of residential box transformer:
Transformer:
The intelligent integrated substation uses low-loss, oil-immersed, fully sealed series transformers, and resin insulated or paper insulated environmentally friendly dry-type transformers can also be used. The transformer can be equipped with a trolley at the bottom, so that the transformer can be easily entered and exited.
High voltage side:
The high voltage of intelligent integrated substations is generally protected by a load switch fuse combination. After the fuse phase is blown, the three-phase linkage will trip. The load switches include compressed air, vacuum, and hexafluoride. Sulfur and other types are optional, and can be equipped with an electric operating mechanism to realize automated upgrades. The fuse is a high-voltage current-limiting fuse with an impactor, reliable action, and large breaking capacity.
Low-voltage side:
The main switch on the low-voltage side adopts a universal or intelligent circuit breaker, and the selective protection outlet switch cabinet adopts a new type of plastic case that is small in size and has short arcing. It can achieve up to 100 loops, intelligent automatic tracking, and no The power compensation device has two switching modes: contactor and non-contact for users to choose.
Community box transformer
Technical parameters:
Serial number
Name
Unit
Load switch
Vacuum load switch

Rated voltage

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Maximum operating voltage

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Rated frequency
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Rated current

c=>

Rated breaking load current

c= >

Thermal stable current (effective value)
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Dynamic stable current




Short-circuit making current (peak value)




Number of full-load breaking times
times< br/>


Mechanical life
Times



Power frequency withstand voltage




Lightning impulse voltage (phase to phase and ground)