Pad-Mounted Transformer

Performance characteristics

●Ambient temperature: Maximum temperature +40 ℃, minimum temperature -30 ℃; -Altitude: ≤1000m.
-Altitude: ≤1000m
●Wind speed: equivalent to 34m/s (not more than 700pa); -Humidity: average of daily relative humidity not more than 95%, average of monthly relative humidity not more than 95%.

●Humidity: average daily relative humidity not more than 95%, average monthly relative humidity not more than 90%; -Altitude: ≤1000m -Wind speed: equivalent to 34m/s (not more than 700pa)

●Seismic: Horizontal acceleration not greater than 0.4m/s; vertical acceleration not greater than 0.15m/s; installation address inclination: not greater than 0.4m/s; vertical acceleration not greater than 0.15m/s.

●Installation address inclination: not more than 3°; Installation environment: the surrounding air is not more than 0.4m/s.

●Installation environment: the surrounding air is not subject to corrosive, flammable gas and other obvious pollution, the installation site without severe vibration;
-If the order exceeds the above conditions, please consult with us.

Structural characteristics

●Compact structure, small volume, only about 1/3 to 1/5 of the same capacity of China’s European box variable, greatly reducing the floor space;

●Fully sealed, fully insulated structure, no need for insulation distance, reliable protection of personal safety;

●The high-voltage connection can be used for both ring network and terminal, which makes the power supply flexible and highly reliable;

●Excellent transformer performance: low loss, low noise, low temperature rise, strong overload capacity, short-circuit resistance, high impact resistance;

●Meet all kinds of low-voltage feeder requirements, can be selected according to the program, can also be designed;

●There are two types of cable head: 200A elbow-type plug and 600A “T” type fixed cable connector, both of which can be equipped with fully insulated zinc oxide lightning arrester, and the 200A cable head can be plugged and unplugged with load, and also can be designed by itself.
●The 200A type cable head can be plugged and pulled with load, and can also play the role of isolation shutdown

Implementation standards

●The high voltage load switch and high voltage fuse are placed in the transformer oil.
It is available in a common or separate case with the transformer body. Oil
●The tank type adopts a fully sealed structure, equipped with oil temperature gauge, oil level gauge, pressure gauge, pressure relief valve, oil drain valve and other components.
●The tank type adopts a fully sealed structure, equipped with an oil temperature gauge, an oil level gauge, a pressure gauge, a pressure relief valve, an oil drain valve and other components to monitor the transformer operating conditions.
●The product is divided into the ring network type, the oil tank type, the oil tank type, and the oil tank type. The product is divided into ring network type, terminal type and power supply type.
●In order to make this product more suitable for the actual requirements of China’s power grid, the company has also launched the plug-in fusion type.
●In order to make this product more suitable for the actual requirements of China’s power grids, the company has also introduced plug-in and pull-out dry fuses, which do not affect the performance of the transformer oil.
●The melting of the fuse does not affect the performance of the transformer oil. According to the complexity of the low-voltage feedthrough requirements, the YB-type 12/0.4 finished product is more suitable for the actual requirements of China’s power grid.
12/0.4-type products are divided into standard, reinforced and integrated three shells
Forms, so that users and design units in the selection of type, to achieve more flexible, more economical.
Economy

Model number and meaning

Model Number: YB□-12/0.4-□

Technical parameters

-Rated voltage: 10KV/0.4KV.
Rated voltage on high voltage side: 10KV; – Maximum voltage on high voltage side: 12KV.

Maximum voltage of HV side: 12KV.
Rated voltage of low voltage side: 0.4KV; -Rated voltage of high voltage side: 10KV; Maximum voltage of high voltage side: 12KV.

Rated frequency: 50HZ.
-Thermal stabilization capacity of HV switch: 20KA.

Rated short-circuit breaking capacity of LV main circuit switch: 35kA; – Rated short-circuit breaking capacity of LV outlet circuit switch: 35kA

Rated short-circuit breaking capacity of LV outlet circuit switch: 35kA; – Rated short-circuit breaking capacity of HV load switch: >1500kA.

Transfer current of HV load switch: >1500A; Noise level: <50dB; <50dB; >1500A.

Noise level: <50dB.
-Enclosure protection level: not less than IP3X; Insulation level: not less than IP3X; Noise level: <50dB

Insulation level: