Three Phase Pad Mounted Transformer

Pad Mounted Transformer

The pad mounted transformer serves as a grounded power distribution system utilized outdoors or underground. Enclosed within pad-mounted units, these distribution systems eliminate exposed wires or cables, making them ideal for deployment in high-traffic and communal areas. This design feature not only eliminates the need for fencing but also reduces wiring needs, resulting in cost savings and more dependable power connections. With a service life of 25-30 years, these transformers offer long-lasting reliability.

The pad-mounted transformers engineered and manufactured by Daelim Transformer adhere to stringent standards such as IEEE C57.12.4 and CSA C227.4, while also meeting efficiency requirements set by DOE and CSA. Customizable according to project specifications, our transformers can withstand harsh environments, including corrosion protection, low-temperature rise, and other demanding conditions, along with accommodating special design requirements.

Certificates

The 3-phase pad-mounted transformers manufactured by Daelim have successfully undergone testing and certification by authoritative organizations such as UL, CSA, CESI, SGS, and others.

Daelim’s UL cUL Certificate 3-phase pad-mounted transformer series includes the following power ratings:

15kV with a power rating of up to 4000kVA
25kV with a power rating of up to 20MVA
35kV with a power rating of up to 10MVA
44kV with a power rating of up to 20MVA

Daelim three phase pad mounted transformers fully meet or exceed ANSI/IEEE, CSA, IEC, DOE, and other standards, these certifications ensure compliance with safety and performance standards, assuring customers worldwide.

3-Phase Pad mounted transformer Specification

kVA	HV	LV	Total weight	oil weight
75 kVA	25000Delta	480GrdY/277	1,400Kg	540KG
100 kVA	24900GrdY/14400	600V	729KG	138KG
150 kVA	14400V	600GrdY/347	2400kg	750L
200 kVA	13800V	380GrdY/220	2000kg	250kg
225 kVA	4160Delta	347GrdY/600V	2500KG	850L
300 kVA	34500V	208GrdY/120	2300kg	1025L
500 kVA	24940×12470DELTA	208GrdY/120	3050kg	1170L
625 kVA	13,800Delta	480GrdY/277V	2000KG	520KG
750 kVA	24940GrdY/14400	800GrdY/462	3100Kg	920L
1,000 kVA	13,200DELTA	480GrdY/277	8,360lbs	310GAL
1,250 kVA	25000V	416V	4000kg	1250L
1,500 kVA	4160GRDY/2400	600GrdY/347	4300kg	1400L

Three Phase Pad mounted transformer Specification

kVA	HV	LV	Total weight	oil weight
1,700 kVA	13,800Delta	480GrdY/277V	4600kg	1050L
2,000 kVA	4160DELTA	415GrdY/240	4600kg	1280L
2,500 kVA	25000DELTA	600GrdY/347	5850kg	1680L
2,550 kVA	12470DELTA	415GrdY/240	5800kg	1750L
2600 kVA	34500DELTA	416GrdY/240	6350kg	1940L
2800 kVA	21000V	480V	13669lb	489gal
3000 kVA	13800V	415V	6700kg	1885L
4000 kVA	34,500DELTA	12,470DELTA	9,500kg	3560L
5000 kVA	22860GrdY/13200	4160GrdY/2400	9100kg	2435L
7000 kVA	27,600DELTA	13,800DELTA	11600kg	2820L
7500 kVA	249400DELTA	4.16kv Wye	12000 kg	3000kg
10000 kVA	24900GrdY/14400	600V	15000kg	3000L

Pad Mounted Transformer Tests & QC

After each unit of Daelim Transformer’s pad-mounted transformer is produced, routine tests/FAT will be conducted following the requirements of ANSI/IEEEC57.12.90 and C57.12.00. The test report complying with IEEE/CSA standards will then be issued.

We offer both online and offline test supervision options for our customers. You can choose to have a third party, such as SGS, CSA, or UL, visit the Daelim Transformer factory during the testing phase to witness the tests being conducted and receive a report that fully complies with standard requirements. Alternatively, you can opt for online video monitoring to observe the testing process in real-time. Ensuring transparency and confidence in the testing procedures.

Our production and testing equipment undergo professional calibration every year. The UL agency also supervises and inspects our factory every three months. These measures ensure that Daelim Transformer produces high-quality, safe, and reliable transformers.

Factory Production Photos

Shipping Photos

Why Choose Daelim 3 Phase Pad Mounted Transformers

1. Daelim offers a comprehensive range of UL-listed pad-mounted transformers with a capacity range of 15-35kV and up to 20MVA.

2. Customized service, 24-month warranty

3. Experience fast turnaround times with Daelim’s 3-phase pad mounted transformer drawings, typically provided within 1-2 weeks.

4. Daelim’s local after-sales service teams are available in the United States, Canada, Mexico, Ecuador, and other countries.

5. Fast delivery of three-phase pad mounted transformer(6-8weeks)

6. Pad Mounted Transformer In Stock

Daelim Pad Mounted Transformer Projects

2550 kVA Pad Mounted Transformer For Data Center in Mexico, Missouri

Daelim Transformer Custom 1500 kVA Pad Mounted Transformer for Canada

Pad Mounted Transformer for BESS System 4.0 MVA in California

2 MVA Pad Mounted Transformer for Utility

Loop Feed Transformer Diagram

Radial Feed Transformer Diagram

Live front & Dead front transformer

Daelim Transformer offers the flexibility to design and produce both live front and dead front pad-mounted transformers to suit your specific requirements.
Dead Front Transformer: In a dead front transformer, the high-voltage bushing is separate, comprising a bushing well and a load break bushing insert, both insulated. High-voltage cables connect to the transformer using a dead break elbow connector, ensuring no exposed electrical components in the energized high-voltage section. This design significantly reduces the risk of accidental contact or electric shock.
Live Front Transformer: In a live front transformer, the high-voltage bushing typically consists of a one-piece spade type made of materials like porcelain or epoxy, often with 2-4 holes at the end. High voltage cables connect to these holes using a mechanical lug or a crim plug. Unlike dead front transformers, the high-voltage bushing in live front transformers is fully exposed, potentially leading to safety concerns if moisture, oil, or dust is present, increasing the risk of arc generation.
Based on our extensive experience, most customers opt for the dead front pad-mounted transformer due to its superior safety features. However, the choice ultimately depends on your specific needs and preferences. Rest assured, Daelim Transformer can tailor our solutions to meet your project requirements.