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ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
Specifications
Brand Name :
Leilang Electric
Model Number :
ZGS-750
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
Number of Phases :
Three Phases
Product Name :
Deadfront Pad Mount Transformer Compact
Winding Material :
Enameled copper wire or enameled aluminum wire
Rated Power :
750kVA
Input Voltage :
6.3~66KV Or Customized
Output Voltage :
240/120V
Noise leve :
<50dB
Frequency :
50/60 Hz
Temperature Rise :
≤115K
Insulation Rating :
Class E Insulation - 120°C, 248°F
Efficiency Standard(s) :
Meets DOE 2016 Standards, Meets CSA Standards Meets ANSI/IEEE Standards
Impedance Voltage :
about 4.5%
Connection Type :
DYN11/YYN0
Insulation Level :
A/E
Enclosures Protection Level :
IP20/IP30/IP32/IP40
Operating Temperature :
-15℃～40℃ (40℃, 90%R.H., 56days)
Storage Temperature :
-25℃～100℃(40℃, 90%R.H., 56days)
Cooling Method :
KNAN/ONAN
Description
ANSI C57 Compliant Three Phase Pad Mounted Transformer | 750kVA, Multi-Protection
Product Overview

Leilang Electric 750kVA three phase pad mounted transformer is a heavy-duty distribution solution fully compliant with ANSI C57 standards for North American utility, industrial, and commercial power systems. Engineered as a 750kVA high-capacity unit, it delivers stable, high-power conversion with strong overload capability and long-term durability. Built with a complete multi-protection system including overcurrent, overvoltage, overtemperature, pressure relief, and short-circuit protection, it ensures safe, reliable operation in outdoor environments. Featuring deadfront design, fully sealed oil-immersed structure, low noise, and compact layout, this model combines strict ANSI standard compliance, large 750kVA capacity, and all-round safety protection to meet demanding grid and industrial power requirements.

Key Features & Benefits
ANSI C57 Fully Compliant
  • Strictly designed, manufactured, and tested to ANSI C57 standards
  • Meets North American utility and industrial power requirements
  • Stable performance, standardized interfaces, easy installation & maintenance
  • Widely accepted by utility companies and engineering contractors
750kVA High Capacity Output
  • 750kVA rated power for large commercial & industrial loads
  • High efficiency (≥99%), low loss, strong overload capacity
  • Suitable for continuous heavy-duty operation
  • ONAN self-cooled for reliable long-term running
Complete Multi-Protection System
  • Overcurrent & short-circuit dual fuse protection
  • Automatic pressure relief valve for internal overpressure
  • Overtemperature monitoring & protection
  • Overvoltage & lightning impulse protection
  • Fully sealed insulation to prevent moisture & contamination
  • Deadfront design eliminates exposed live parts for maximum safety
Compact & Deadfront Structure
  • Space-saving compact cabinet ideal for urban sites
  • Deadfront design enhances public & maintenance safety
  • Corrugated oil tank for breathing without a separate conservator
  • Low noise (<50dB) suitable for residential & urban areas
Maintenance-Free & Long Service Life
  • Hermetically sealed structure prevents oil oxidation & moisture
  • No regular oil changes required under normal operation
  • High mechanical strength & corrosion-resistant housing
  • 25+ years service life with minimal maintenance
Technical Specifications
Brand Leilang Electric
Type Three Phase Deadfront Pad Mounted Transformer
Rated Capacity 750 kVA
Standard ANSI C57, IEEE
Phase 3 Phase
Frequency 50 / 60 Hz
Cooling ONAN (Self-Cooled)
Efficiency ≥99%
Noise Level <50 dB
Temperature Rise ≤75 K
Protection Type Dead Front
Winding Material Copper / Aluminum
Insulation Class A / E
Protection Degree IP20 / IP30 / IP32 / IP40
Operating Temp -15℃ ~ +40℃
Certifications ANSI C57, IEEE, CE, ISO
Warranty 24 Months from B/L Date
MOQ 1 Unit
Lead Time 15-25 days
Applications
  • Utility distribution substations
  • Large commercial buildings & shopping malls
  • Industrial plants & heavy manufacturing
  • Data centers & large-scale backup power
  • Residential community power supply
  • Schools, hospitals, and public infrastructure
  • Renewable energy grid connection
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
Frequently Asked Questions
Q: Is this 750kVA transformer fully compliant with ANSI C57 standards?
A: Yes. Leilang Electric 750kVA pad mounted transformer is designed, tested, and certified to meet ANSI C57 and IEEE standards for North American market.
Q: What is the rated capacity of this transformer?
A: This model is 750kVA three phase, ideal for high-load commercial, industrial, and utility power distribution.
Q: What types of multi-protection does this transformer include?
A: It provides complete multi-protection: overcurrent, short-circuit, overvoltage, overtemperature, pressure relief, and fully sealed insulation protection.
Q: Is this a deadfront type transformer?
A: Yes. It uses deadfront design with no exposed live parts, greatly improving safety for public areas and maintenance personnel.
Q: Does this unit require frequent maintenance?
A: No. Its fully sealed corrugated oil tank isolates oil from air and moisture, enabling maintenance-free operation and long service life.
Q: What kind of cooling system does it use?
A: It uses ONAN self-cooled design, ensuring reliable heat dissipation without fans or extra power consumption.
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ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled

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Product Detail
Brand Name :
Leilang Electric
Model Number :
ZGS-750
Certification :
UL/CUL,ISO
Place of Origin :
CHINA
MOQ :
1unit
Price :
$1000-$10000
Contact Supplier
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ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled

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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