What Are 7.2–15 kV Class Pad-Mounted Transformers?

7.2–15 kV Class Pad-Mounted Transformers are compact, oil-immersed distribution transformers designed for underground or aboveground medium-voltage distribution networks. Enclosed in tamper-proof cabinets and installed at ground level, they are ideal for serving residential neighborhoods, commercial plazas, and light industrial facilities.

These transformers are commonly used in systems operating at 7.2 kV, 11 kV, 12.47 kV, 13.2 kV, 13.8 kV, or 15 kV and are built to ANSI 15 kV class standards.

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Why Use 7.2–15 kV Class Pad-Mounted Transformers?

Safety and Accessibility:
The fully enclosed design ensures public safety and allows for ground-level access by utility crews, making them ideal for urban or public-facing environments.

Outdoor Durability:
Designed with corrosion-resistant, weatherproof steel tanks, these transformers withstand rain, dust, humidity, and temperature fluctuations, ensuring 20–30 years of service life.

Space-Saving Design:
Pad-mounted transformers require no fencing or substation-style equipment. Their compact footprint makes them well-suited for sidewalk, parking lot, or building-adjacent installations.

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Key Features of 7.2–15 kV Class Pad-Mounted Transformers

Construction:
Oil-immersed, sealed tank design with radiator fins or corrugated panels for natural convection cooling (ONAN).

Voltage Ratings:
Primary: 7.2 / 11 / 12.47 / 13.2 / 13.8 / 15 kV
Secondary: 208 / 240 / 277 / 480 / 600 V (single-phase or three-phase)

Tap Changers and Accessories:
Available with off-circuit or on-load tap changers, pressure relief valves, liquid level gauges, and temperature indicators.

Protection Options:
Includes bayonet fuses, CSP (completely self-protected) features, surge arresters, and optional switchgear compartments.

Enclosure:
Tamper-resistant cabinet with dead-front or live-front access, typically meeting ANSI, IEEE, and NEMA pad-mounted specifications.

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Applications of 7.2–15 kV Class Pad-Mounted Transformers

• Residential subdivisions and apartment complexes

• Shopping centers, schools, and hospitals

• Light industrial facilities and warehouses

• Public parks and utility corridors

• Renewable energy interconnections at LV/MV level

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Standards and Compliance

International Standards:
ANSI C57.12.34, IEEE C57.12.00 / C57.12.28, IEC 60076, CSA, GB

Testing:
Routine testing per ANSI/IEEE requirements; type and special tests available

Certifications:
CE, ISO9001, ISO14001, ISO45001, RoHS (upon request)

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Advantages of 7.2–15 kV Class Pad-Mounted Transformers

• Compact and secure ground-level installation

• Oil-filled for high efficiency and low noise operation

• Minimal maintenance with sealed tank design

• Flexible configuration for various voltage requirements

• Long lifespan in outdoor environments

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Choose CHBEB

Choose CHBEB 7.2–15 kV Class Pad-Mounted Transformers for compact, reliable, and utility-ready power distribution. With over 60 years of transformer manufacturing experience, CHBEB offers proven solutions for medium-voltage networks across residential, commercial, and utility applications worldwide.

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👉 Technical Specifications:
Please refer to the table below for detailed parameters of our 7.2–15 kV Pad-Mounted Transformer Series:

Rated Capacity KVA	High Voltage KV	Low Voltage KV	Tapping Range& Vector symbol	Loss(W)
				No-load	On-load
30KVA	6.3KV 7.2KV 7.62KV 8.6KV 12.47KV 13.2KV 13.8KV 19.8KV 19.92KV 23KV 34.5KV 35KV   To be requested by customers	110V 220V 230V 240V 347V 480V 277V 600V	±5 （±2*2.5）   Yyn0 Dyn11	110	500
63KVA				200	1040
75KVA				180	1250
125KVA				220	1700
150KVA				280	2200
225KVA				400	3050
300KVA				480	3650
500KVA				680	5100
750KVA				980	7500
1000KVA				1150	10300
1500KVA				1640	14500
2000KVA				2160	20645
2500KVA				2680	27786
3000KVA				3300	30300
3750KVA				4125	37875