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ANSI C57 Residential Pad Mounted Transformer 750kVA Multi Protection Oil Filled
| MOQ: | 1unit |
| Price: | $1000-$10000 |
| Standard Packaging: | 1000set/month |
| Delivery Period: | 30days |
| Payment Method: | T/T |
| Supply Capacity: | Plywood case |
Detail Information
Place of Origin
CHINA
Brand Name
Leilang Electric
Certification
UL/CUL,ISO
Model Number
ZGS-750
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
Highlight:
ANSI C57 residential pad mounted transformer
,residential pad mounted transformer 750kVA
,120V oil filled pad mounted transformer
Product 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
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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