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75kVA 13.2kV to 208Y/120 Three Phase Pad Mounted Transformer | 98.9% Efficient, Fully Sealed
Product Overview
Leilang Electric's 75kVA 13.2kV to 208Y/120 three phase pad mounted transformer is engineered for reliable, cost-effective power distribution in residential neighborhoods, small commercial complexes, schools and light industrial facilities. As a core product in our liquid-filled distribution transformer lineup, it delivers 98.9% industry-leading efficiency that meets and exceeds U.S. DOE 2016 energy efficiency standards, cutting long-term operational costs by reducing energy waste.
Its fully sealed oil-immersed design eliminates oil oxidation and moisture ingress, extending service life to 30+ years and minimizing maintenance requirements. All live components are completely enclosed within a grounded steel tank, providing inherent safety for public areas without the need for additional fencing. Manufactured in strict accordance with the latest ANSI C57 and IEEE standards, this transformer supports both radial and loop feed configurations, offering flexible installation options for diverse grid architectures.
Key Features & Benefits
98.9% DOE 2016 Certified Efficiency
Uses high-grade grain-oriented silicon steel core and 100% copper windings
Ultra-low no-load loss (180W) and load loss (1250W)
Saves over 1,500 kWh of electricity annually compared to standard transformers
Reduces carbon footprint and lowers total cost of ownership
Fully Sealed Welded Tank Construction
One-piece welded tank from cover to base, no gaskets to leak
Hermetically sealed system prevents oil degradation and contamination
No routine oil changes required, cutting maintenance costs by 70%
All live parts fully insulated and enclosed, eliminating accidental contact hazards
Comprehensive Safety Protection
Automatic pressure relief valve (35 SCFM) for overpressure protection
Three-point latching system with interlocked doors (HV door only opens after LV door)
Rigid steel partitions between high and low voltage compartments
ANSI standard ground pads for secure electrical grounding
Flexible & Reliable Operation
Supports both radial and loop feed arrangements
5-position tap changer (±2*2.5%) for voltage regulation
65°C average winding rise, Class E insulation (120°C)
Operates reliably in temperatures from -40°C to +40°C (-40°F to 104°F)
Low noise level (51 dBA) for quiet operation in residential areas
Factory Pre-Assembled for Fast Installation
Fully tested and pre-wired at our manufacturing facility
Ready for immediate installation on a concrete pad
Ground-level access for all maintenance tasks, no climbing required
Standard 1-inch drain valve and oil sampler for easy inspection
Technical Specifications
Parameter
Specification
Brand
Leilang Electric
Model
LL-PM-75/15
Rated Capacity
75 kVA
Phase
Three Phase
Primary Voltage
13200GrdY/7620V (15kV Class)
Secondary Voltage
208Y/120V (1.2kV Class)
Frequency
60 Hz
Vector Group
YnYn0
Cooling Class
KNAN (Self-Cooled)
Impedance
2.70-5%
Winding Material
100% Copper
Core Material
Grain-Oriented Silicon Steel
Tank Material
Coated Carbon Steel (Olive Green Munsell 7GY 3.29/1.5)
Efficiency
98.9% (DOE 2016 Compliant)
No-Load Loss
180 W
Load Loss
1250 W
Sound Level
51 dBA
Operating Altitude
Up to 3300ft (1000m)
Certifications
UL, CE, ISO, ANSI C57, IEEE
Warranty
24 Months from Bill of Lading Date
Lead Time
15-25 Days for Standard Orders
Frequently Asked Questions (FAQ)
Q: What efficiency standard does Leilang's 75kVA pad mounted transformer meet?
A: Our 75kVA transformer achieves 98.9% full-load efficiency, which meets and exceeds the U.S. Department of Energy (DOE) 2016 energy efficiency requirements for distribution transformers.
Q: What are the benefits of the fully sealed design?
A: The hermetically sealed welded tank prevents air and moisture from entering, eliminating oil oxidation and degradation. This means no routine oil changes are needed, extends the transformer's service life to 30+ years, and provides superior safety by fully enclosing all live components.
Q: Can this transformer be used in both radial and loop feed systems?
A: Yes, it is designed to support both radial and loop feed configurations, making it compatible with most North American distribution grid architectures.
Q: What warranty does Leilang Electric provide for this transformer?
A: We offer a 24-month warranty from the date of shipment. During the warranty period, we provide free replacement of defective parts and technical support. We also include free spare parts for common wear items with bulk orders.
Q: Can you customize the voltage ratings or other features?
A: Yes, as a manufacturer with an in-house R&D team, we offer full OEM/ODM customization. We can adjust voltage ratios, add smart monitoring features, change tank color, or modify other specifications to meet your project requirements.
Q: How long does installation take?
A: Our transformers are fully pre-assembled and tested at the factory. Installation typically takes 1-2 days, requiring only placement on a concrete pad and connection to the incoming and outgoing power lines.
Q: What is the minimum order quantity?
A: We accept orders as low as 1 unit for standard models, making it easy to test our product quality or fulfill small project needs.