2.5 MVA Oil Immersed Electrical Distribution Transformer

2.5 MVA Transformer Specification

S11-2500KVA 2.5 MVA Oil Immersed Electrical Distribution Transformer is suitable for underground central substations in coal mines, underground car yards, general air intake ducts and main air intake ducts, where there is gas but no explosion hazard. Also suitable for damp environments in tunnels.

Normal environmental use conditions: the altitude does not exceed 1000m

Ambient temperature up to +40°C, down to -25°C

Special environmental conditions of use: the altitude exceeds 1000m

The relative humidity of the surrounding air is not more than 95% (+25°C)

In an environment without strong turbulence and vibration and the inclination to the vertical plane does not exceed 350°

2.5 MVA Oil Immersed Electrical Distribution Transformer Standards

1. JB3995-2006

2.GB1094.1-1996

3.GB1094.2-1996

4.GB1094.3-2003

5.GB1094.5-2003

6.IEC60076

2.5 MVA Oil Immersed Electrical Distribution Transformer Model Parameters

The capacity of S11 oil-immersed transformer is 50KVA-3150KVA, and our factory accepts customization of products with higher capacity.

Voltage level: 11KV-0.4, common models are:

S-50/11, S-80/11, S-100/11, S-125/11, S-160/11, S-200/11

S-250/11, S-315/11, S-400/11, S-500/11, S-600/11 and so on.

2.5 MVA Transformer Datasheet

Transformer Type: Three-Phase Transformer

Capacity: 2500kVA

Primary Voltage: 13,800 volts

Secondary Voltage: 480 volts

Frequency: 50 / 60 Hz

Current Rating: HV 104.6A  LV 3007.1A

Connection: Dyn11

Winding Material: Copper

Efficiency: 98.5%

Impedance: 5%

Cooling: ONAN (Oil Natural Air Natural)

Oil Capacity: 1300 L

Weight: 5700 kg

Dimensions: 3100*1900*1800mm

Tap Changer: Off-load tap changer with 5 position taps

Standards: IEEE, KEMA, ANSI, UL, CSA

If you also need 2.5 mva transformer nameplate details, 2.5 mva transformer drawing, 2.5 mva transformer price or customized transformer, pls send inquiry to us! Our contact info as below.

Email: 18620687902@163.com

Whatsapp: +8618620687902

2.5 MVA Oil Immersed Electrical Distribution Transformer Features

1. The fuel tank has a solid structure and can withstand a pressure test of one atmosphere. There is no oil conservator on the tank cover. High and low voltage cable junction boxes are welded on both sides of the box wall for cable connection. The high-voltage coil has a rated voltage and a tap voltage of 15%. Use a tap changer to change the voltage. When changing the voltage, you must first cut off the power supply, and then remove the windshield of the tap changer on the box wall to change the tap.

2. The low-voltage side of the transformer is allowed to be connected in a "Y" shape to form a 690-volt power supply, and can also be connected to form a 400-volt power supply. In the cable junction box, the secondary terminals are directly led out to six porcelain sleeves for user modification.

3. The whole transformer is hoisted by using the lugs welded on the box wall. The bottom of the transformer box is equipped with trolley brackets, and there are mounting holes on the brackets, which can be used to install mine trolley rollers in mines.

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