7 MVA Pad Mounted Transformer

Primary Voltage Ratings: 34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2 ,44 kV or others
Secondary Voltage Ratings: 208GrdY/120;416GrdY/240,480GrdY/277,/600GrdY/347,220y/127,480V,415v,600v or others
H.V. TAP RANGE: ±2×2.5% or others
CONNECTION TYPE: Dyn11/YNyn0 or others
TYPE: Loop feed/Radial feed
BIL: 30-200kV
Standards: ANSI/IEEE, CSA
Application: BESS, Data center, Industry, Renewable energy, EV charging
Power Rating: 7 MVA (7000kVA)
Certificate: UL, cUL, CSA, SGS

Daelim Transformer is a professional manufacturer of transformers with UL listings and certifications for voltage levels up to 44kV, offering a comprehensive range of UL-certified pad-mounted transformers. Annually, we export Thousands of these transformers to the United States and Canada. Proficient in IEEE/ANSI, CSA, DOE, NEMA, and other standards, our team ensures compliance with diverse regulatory requirements. In addition to UL certification, we also hold CSA, MF, CESI certificates, and third-party SGS test reports. With extensive project experience, we understand that each project has unique requirements. That's why we offer customizable transformers, allowing adjustments to voltage, capacity, connection method, and special design to perfectly suit your needs. The 7 MVA pad-mounted transformer can be customized to fit your project requirements. Contact Daelim Transformer today to receive the parameter sheet, drawings, and quotation for the 7 MVA Pad Mounted transformer.

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7000 kVA (7 MVA) Pad Mounted Transformer Specifications

7000 kVA(7 MVA) Transformer Specifications
Phase	Three phase	Std.	CSA C227.4 & CAN/CSA 802.1 Std
Power rating	7000kVA(7MVA)	Config	Dead front/loop feed
Mounting	Pad Mount	Frequency	60Hz
HV Voltage	27600 Delta	Tap changer	5-position
LV Voltage	13800 Delta	Fluid Capacity	2820L
HV BIL	150 kV	Total weight	11600kG
LV BIL	95 kV	No load loss	6625W
Vectorgroup	Dd0	On load loss	39100W
Cooling method	ONAN	Impedance	5.75%
Winding Material	Copper	Paint Color	Munsell green
Core Construction	Three-legged core	Capacity @ 65°C Temperature Rise	7000 kVA

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Daelim Transformer Certificates

ZGS-H-7000/27.6/13.8

The ZGS-H-7000/27.6/13.8, manufactured by Daelim Transformer, is an industrial pad-mounted transformer designed as a dead-front and loop-feed type. With a robust transformer rating of 7000 kVA (equivalent to 7 MVA), this industrial transformer boasts a primary voltage of three-phase 27600 V Delta and a secondary voltage of three-phase 13800 V Delta. Notably, it features a 5-position tap changer on the primary side, offering ±2 * 2 .5% taps for fine voltage adjustments as needed.

One of the standout features of this 7000 kVA (7 MVA) transformer is its exceptional efficiency, thanks to a 65℃ temperature rise design. This reduced heat waste not only enhances its reliability but also extends its operational lifespan, ensuring optimal performance over time. Moreover, this transformer is in compliance with the energy efficiency standards outlined in CAN/CSA-C802.1.

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7000 kVA Transformer

For efficient cooling, the ZGS-H-7000/27.6/13.8 employs ASTM II mineral cooling fluid (ONAN) with a substantial capacity of 2820 liters, maintaining ideal operating temperatures.

Monitoring and safety are paramount with this transformer. It comes equipped with essential gauges, including an oil level gauge, thermometer, and vacuum gauge, all equipped with auxiliary contacts. These gauges serve as early warning systems, capable of triggering alarms or remote trips in the event of abnormal operation, ensuring seamless monitoring of the transformer's status.

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7000 kVA Transformer

Additionally, the unit features a pressure relief device that rapidly dissipates excess pressure within the transformer tank. This safeguard guarantees the normal operation of the transformer and prevents damage in case of pressure buildup.

To further enhance its versatility, the transformer boasts a four-position load-break switch that can be adjusted to meet specific application requirements, offering adaptability and convenience in various operating scenarios.

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7 MVA Pad Mounted Transformer

7 MVA Pad Mounted Transformer types

The types of 7mva pad mounted transformer have loop feed and radial feed. The radial feed transformer has 3 HV bushings, and the loop feed transformer has 6 HV bushings. Their biggest difference is the high-voltage bushings. From the figure below, it is easy to distinguish between Radial Feed and loop feed.

7 MVA Pad Mounted Transformer Standard Voltage

The following table shows the standard primary voltage of the 7 MVA pad mount transformer. Daelim's technical team can customize the design if you need other voltage or special requirements.

Standard Primary
Voltage Rating	Minimum BIL	Voltage Rating	Minimum BIL
Delta or Wye		Ground Wye
7200 V	75 kV	13800GrdY/7970	95 kV
7620 V	75 kV	22860GrdY/13200	125 kV
12000 V	95 kV	23900GrdY/13800	125 kV
12470 V	95 kV	24940GrdY/14400	125 kV
13200 V	95 kV	24940GrdY/14400	125 kV
13800 V	95 kV	34500GrdY/19920	150 kV
16340 V	95 kV	34500GrdY/19920	150 kV

Learn more about pad transformers: 3 Phase Pad Mounted Transformer

7 MVA Pad Mounted Transformer Outline Drawing

The picture below is Daelim's 27.6 kV 7 MVA pad-mounted transformer outline drawing.

7000 kva pad mounted transformer drawing

7000 kVA Pad Mounted Transformer Weight

Winding materials, number of accessories, voltage levels, and efficiency values will affect the weight of the transformer. The following table shows the weight of a 27.6/13.8 kV 7000kVA pad-mounted transformer.