4000 kVA (4 MVA) Substation Transformer

Primary Voltage Ratings: Up to 44 kV
Secondary Voltage Ratings: 600V/480V/240/2.4kV/12.47kV,etc.
CONNECTION TYPE: Dyn1,YNd1,Dy11y11,YNyn0
TYPE: Substation
BIL: 30-125kV
Standards: CSA C88, IEEE C57
Application: Distribution system
Power Rating: 4000kVA/ 4MVA
Certificate: UL, cUL, CSA

Daelim Transformer's 4000 kVA (4 MVA) substation transformer offers low discharge, low loss, low noise, and high reliability. Flexible core/coil construction meets dimensional requirements. Customizable with cover-mounted or side-mounted bushings. Complies with UL/cUL, CSA standards, and third-party test reports. At Daelim Transformer, we understand that every project comes with unique requirements. That's why we offer customizable transformers, allowing you to adjust voltage, capacity, and parameters to perfectly align with your needs.

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4000 kVA Transformer Specifications
4000 kVA Transformer Video

Daelim Transformer is a professional manufacturer of transformers with extensive project experience in North America. Our team is proficient in IEEE, CSA, DOE, NEMA, and other standards, as well as local laws and regulations. We export thousands of transformers to North America every year. Daelim's UL-listed transformers are up to 44kV, making us the transformer manufacturer with the most UL certificates in China.

4000 kVA (4 MVA) Substation Transformer Specifications
Standard	CSA C88	Width(mm)	2250
Method	ONAN/ONAF	Length(mm)	2850
Power rating	3000/4000kVA	Height(mm)	1980
Winding material	ALUMINIUM	Oil weight	1370KG
No. OF TAP POSITION	5	Total weight	6600KG
Vector Group	Dyn1	Efficiency	99.37%
HV	25000V	Impedance	5.75%
LV	600V	Color	ANSI Grey 70

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The SFL-3000(4000)/25/0.6 transformer is designed according to the CSA C88 and c802.3 standards, which is a recognized CSA standard for transformers. The transformer is intended for use in the Canadian market and holds a cUL(CSA) certificate, indicating compliance with safety standards in Canada.

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Check Daelim Transformer Projects: 4000 kVA Three Phase Power Transformer For Canada

4000 kVA Substation Transformer

The substation transformer has a primary voltage of 25kV and a secondary voltage of 600V. It has a capacity of 3000 kVA for ONAN (Oil Natural Air Natural Cooling) cooling and 4000 kVA for ONAF (Oil Natural Air Forced) cooling. The Dyn1 connection group specifies the winding connections of the transformer, and the outlet structure is designed for high and low voltage side-mounting.

The transformer features a sealed cover for protection and safety. It uses regular mineral oil (45#) as the insulating liquid. The cooling method employed is ONAN/ONAF, combining natural cooling with forced air cooling based on operating conditions.

The conductor material for the high voltage (HV) winding and low voltage (LV) winding is aluminum. The transformer will be filled with Type II mineral oil containing less than 2 ppm PCB. The liquid level at 25℃ is 270 mm below the top of the highest manhole flange, with a 10 mm change per 10℃ change in average liquid temperature.

The transformer tank is designed to withstand complete vacuum and internal pressure of 7 psi. It must not be energized from any voltage source when de-energized tap changers are operated. The transformer is designed for operation between pressure limits of 10 psi positive and 8 psi negative. It meets the energy efficiency requirements of CAN/CSA-C802.3 and is built to CSAC88 standards.

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4000kVA Substation Transformer

4000 kVA Transformer Package

4000 kVA Transformer Drawing

4000 kVA Transformer Windings

Other 4000 kVA Substation Transformer

33(13.2) kV 4000 kVA Transformer

The SL-4000-33(13.2)-0.6 is a dual high voltage transformer with voltage levels of 33kV and 13.2kV. It features a dual voltage switch and five adjustable voltage gears. The cooling method is ONAN, and its capacity is 4000kVA. The high and low voltage windings are made of aluminum. The low voltage is 600Y/347V, and the connection group is Dyn11.

Specifications:

Tank & accessories weight: 2450kg
Oil weight: 2300L
Total weight: 9000kg
Transformer dimensions: Length 2350mm, Width 2150mm, Height 2290mm
Built to IEEE C57.12.36 standard
UL listed
Efficiency: 99.37%
Impedance value: 5.75%
Color: ANSI Grey70#
Number of tap positions: 5
Maximum tank pressure: 10 psi positive, 8 psi negative
Fluid level: 10.0 inches from the top of the hand hole at 25℃
Fluid level change: 0.4 inches per 10°C
Tank designed for 7 psi vacuum filling
Installation and operating manual: DBT-22001M
Designed for 4000 kVA at 33000 (13200) volts with tap changer in the 33000 (13200) volt position for 600Y/347 secondary voltage
Contains no detectable levels of PCB (less than 1 ppm) at the time of manufacture.

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4000（5333）kVA Transformer

The SL-4000 (5333)-25-0.6 is a sidewall-mounted bushing transformer designed to meet CSA standards for use in the Canadian market. It has a power rating of 4000kVA for self-cooling (ONAN) and 5333kVA for air-cooling (ONAF). The HV bushing is rated at 25kV and 208A with a spade 4 Hole configuration, while the LV bushing has 10 holes. The transformer includes two sets of fans for cooling.

Transformer technical data specifications

Standard	CSA C88	Width(mm)	2260
Method	ALUMINIUM	Length(mm)	2950
Power rating	4000/5333kVA	Height(mm)	2200
Vector Group	Dyn1	Efficiency	99.40%
HV	25000V	Impedance	5.75%
LV	600V	Color	ANSI Grey 70
Oil weight	1590KG	Winding material	ALUMINIUM
Total weight	7600KG	No. OF TAP POSITION	5