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333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
Specifications
Brand Name :
Leilang Electric
Model Number :
ZGD-333
Certification :
UL/CUL,ISO
Place of Origin :
CHINA
MOQ :
1unit
Price :
$1000-$10000
Payment Terms :
T/T
Supply Ability :
Plywood case
Delivery Time :
30days
Packaging Details :
1000set/month
Transformer Type :
Pad Mounted, Compartmental-Type II
Transformer Feed Type :
Loop Feed
Phase :
Single Phase(Connects to 3-Phase electrical grid)
Capacity :
333 kVA
Vector Group :
II6
Primary Voltage :
34500GrdY/19950
Secondary Voltage :
240/120V (L-N-L)
Frequency :
60 Hz
Temperature Rise :
65°C
Insulation Rating :
Class E Insulation - 120°C, 248°F
Cooling Class :
KNAN; Self-Cooled
Efficiency Standard(s) :
Meets DOE 2016 Standards, Meets CSA Standards Meets ANSI/IEEE Standards
Winding Material :
Copper
Ambient Temperature Rating :
40°C
Efficiency :
99.2%
Ambient Operating Temperature Range :
-40°C to +40°C (-50°F to +104°F)
Sound Level :
56 dBA
K-Factor Rating (Harmonic Mitigation) :
K-1 (Standard)
Tap Changer :
5-position Tap Changer
Elevation (Altitude) :
3300ft (1000 meters) Above Sea Level or Lower
Description
333kVA Single Phase Pad Mounted Transformer | 34.5kV, Multiple Safety Protections, Low TCO
Leilang Electric 333 kVA single-phase pad-mounted transformer is a heavy-duty, high-capacity power distribution solution designed for 34.5kV (34500GrdY/19950V) utility networks, built with multiple safety protections and optimized for low total cost of ownership (Low TCO). This oil-filled, compartmental-type unit steps down 34.5kV high voltage to standard 120/240V secondary power while fully complying with ANSI/IEEE, CSA, and DOE 2016 standards. It features a comprehensive safety system including dead-front construction, pressure relief, surge protection, and tamper-proof security. With high efficiency, long service life, minimal maintenance, and energy-saving performance, it delivers ultra-low long-term operating cost and stable power for large residential, commercial, and industrial applications.
Key Specifications
Parameter Value
Rated Capacity 333 kVA
Primary Voltage 34500GrdY/19950V (34.5kV)
Secondary Voltage 120/240V (L-N-L)
Frequency 60 Hz
Efficiency 99.43%
No Load Loss 900W
Load Loss 3646W
Cooling KNAN Self-Cooled
Temperature Rise 65°C
Winding Material Copper
Sound Level 56 dBA
Structure Pad Mounted, Compartmental-Type II
Certifications ANSI/IEEE C57, CSA, DOE 2016, ISO
Operating Temp -40°C to +40°C
Altitude Up to 1000 m (3300 ft)
Weight 3637.57 lb
Core Features & Benefits
  • 34.5kV High-Voltage Compatibility - Designed for 34.5kV North American distribution grids with wide voltage compatibility (34500GrdY/19950V input), 5-position external tap changer for stable output, and support for loop feed and radial feed systems
  • Multiple Safety Protections - Dead-front fully insulated design, automatic pressure relief valve, bayonet expulsion fuses for overcurrent protection, surge arresters, tamper-proof security locking system, integrated grounding terminals, and IP33-level enclosure protection
  • Low Total Cost of Ownership (Low TCO) - 99.43% high efficiency for ultra-low energy loss, low no-load and load loss, fully sealed structure minimizes maintenance, 25+ year service life, no substation required, and copper windings for long-term reliability
  • ANSI/IEEE & DOE 2016 Compliant - Meets or exceeds ANSI/IEEE C57 standards, complies with DOE 2016 energy efficiency requirements, rugged outdoor enclosure meets IEEE C57.12.28, and factory tested for safety, loss, and thermal performance
  • Heavy-Duty Outdoor Design - Corrosion-resistant coated steel tank, welded domed top prevents water accumulation, stainless steel hardware and hinges, and all-weather stability in harsh environments
Typical Applications
  • Large residential communities & high-rise apartments
  • Shopping malls, supermarkets, and commercial complexes
  • Hospitals, data centers, and public infrastructure
  • Industrial plants and small manufacturing facilities
  • 34.5kV underground utility distribution
  • Areas requiring high capacity and high reliability
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
Frequently Asked Questions
Is this transformer designed for 34.5kV systems?
Yes. It is specially designed for 34500GrdY/19950V (34.5kV) North American utility grids.
What safety protections are included?
It provides multiple safety protections: dead-front insulation, pressure relief valve, surge arresters, bayonet fuses, tamper-proof lock, and dedicated grounding.
How does it achieve Low TCO?
High efficiency reduces power bills; fully sealed design cuts maintenance; long lifespan lowers replacement cost; no substation needed saves construction expense.
Does it meet North American standards?
Yes. It complies with ANSI/IEEE C57, CSA, and DOE 2016 efficiency standards.
Is it suitable for outdoor harsh environments?
Yes. It operates reliably from -40°C to +40°C with corrosion-resistant, waterproof, and impact-resistant construction.
What is the lead time and warranty?
Standard lead time is 15–25 business days. All Leilang Electric transformers include a 24-month warranty and professional technical support.
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333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz

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Product Detail
Brand Name :
Leilang Electric
Model Number :
ZGD-333
Certification :
UL/CUL,ISO
Place of Origin :
CHINA
MOQ :
1unit
Price :
$1000-$10000
Contact Supplier
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333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz
333kVA 56dBA Oil Filled Pad Mounted Transformer Outdoor Pad 60 Hz

Leilang Electric Group CO.,LTD

Verified Supplier
1 Years
shanghai, shanghai
Since 2007
Business Type :
Manufacturer
Main Products :
Single Phase Pad Mount Transformer, Three Phase Pad Mount Transformer, Pole Mounted Transformer
Total Annual :
100000000-100000000
Employee Number :
120~150
Certification Level :
Verified Supplier
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