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24940GrdY 14400 Single Phase Pad Mounted Residential Transformer IEEE C57
| 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
ZGD-10
Transformer Type:
Pad Mounted, Compartmental-Type II
Transformer Feed Type:
Loop Feed
Phase:
Single Phase
Capacity:
10 KVA
Vector Group:
II6
Primary Voltage:
25000GrdY/14400
Secondary Voltage:
120/240 (L-N-L)
Secondary Phasor:
Dual Winding Single Phase
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:
98.30%
No Load Loss (in Watts)*:
+/- 47W
Load Loss (in Watts)*:
+/- 156W
Highlight:
24940GrdY Single Phase Pad Mounted Transformer
,14400 Single Phase Pad Mounted Transformer
,pad mounted residential transformer IEEE C57
Product Description
10 kVA Single Phase Pad Mounted Transformer | 24940GrdY/14400, Low No-Load Loss
Product Overview
Leilang Electric 10 kVA single-phase pad-mounted transformer is a utility-grade power distribution solution engineered exclusively for North American markets, delivering industry-leading safety, energy efficiency and reliability. Designed to step down 24940GrdY/14400V primary voltage to standard 120/240V secondary power, this unit features an ultra-low no-load loss of only 47W and a fully enclosed dead-front construction that eliminates all exposed live parts, ensuring zero electrocution risk in public areas.
Fully certified to UL/cUL standards and compliant with ANSI/IEEE C57, CSA and DOE 2016 efficiency requirements, it achieves an impressive 98.3% overall efficiency, significantly reducing long-term energy costs. Built with high-purity copper windings and a robust compartmental-type II steel enclosure, it provides maintenance-free operation for over 20 years in extreme outdoor conditions. Ideal for residential neighborhoods, light commercial facilities and rural electrification projects, it offers fast ground-level installation without the need for dedicated substations or high-altitude maintenance.
Specifications
| Rated Capacity (kVA) |
High voltage (kV) |
No Load Loss (W) |
On load Loss (W) |
Height (mm) |
Depth (mm) |
Width (mm) |
Weight (kg) |
| 15 kVA | 34.5/19.92 13.8/7.96 13.2/7.6 12.47/7.2 or others |
50 | 195 | 840 | 740 | 610 | 294 |
| 25 kVA | 80 | 290 | 840 | 740 | 610 | 362 | |
| 37.5 kVA | 106 | 360 | 840 | 760 | 610 | 476 | |
| 50kVA | 135 | 500 | 840 | 810 | 610 | 553 | |
| 75 kVA | 190 | 650 | 840 | 860 | 610 | 672 | |
| 100 kVA | 280 | 1010 | 910 | 1200 | 965 | 714 | |
| 167 kVA | 435 | 1530 | 1000 | 1200 | 965 | 913 | |
| 250 kVA | 550 | 2230 | 1250 | 1300 | 1430 | 1106 |
Core Features & Benefits
Fully Enclosed Zero-Risk Safety Design
- Dead-front construction: All high-voltage components are completely sealed within a steel cabinet, eliminating any exposed live parts
- Tamper-proof locking system: Prevents unauthorized access and vandalism in public spaces
- Multi-layer protection: Integrated pressure relief valve, bayonet expulsion fuses and surge arresters for fail-safe operation
- IP54 weatherproof rating: Withstands rain, snow, dust and extreme temperature fluctuations
Ultra-Low Loss Energy Efficiency
- Industry-leading 47W no-load loss: 15% lower than standard equivalents, cutting idle energy consumption
- 98.3% overall efficiency: Meets and exceeds DOE 2016 mandatory efficiency standards
- Grain-oriented silicon steel core: Minimizes core losses and reduces operating temperatures
- Long-term energy savings: Pays for itself in reduced electricity bills over its 20+ year lifespan
North American Full Compliance
- UL/cUL listed: Third-party tested and certified for safety and performance
- ANSI/IEEE C57 compliant: Built to North American utility industry standards
- CSA approved: Suitable for installation across Canada and the United States
- DOE 2016 certified: Meets the latest federal energy efficiency requirements
Low-Maintenance Durable Construction
- 100% copper windings: Superior conductivity and corrosion resistance compared to aluminum
- Galvanized steel enclosure: Rust-proof and corrosion-resistant for outdoor use
- KNAN self-cooling system: No moving parts, eliminating fan maintenance
- Ground-level accessibility: All components can be serviced from the ground without aerial equipment
Flexible & Easy Installation
- Factory pre-wired and tested: Ready for immediate connection on-site
- Compact pad-mounted design: Requires minimal space and no dedicated substation building
- 5-position tap changer: Allows voltage adjustment to compensate for line voltage variations
- Loop feed configuration: Supports both radial and loop distribution networks
Typical Applications
- Residential neighborhoods and housing developments
- Light commercial facilities: convenience stores, small offices, retail shops
- Rural electrification and farm service
- Street lighting and traffic signal systems
- Underground utility distribution networks
- Renovation and expansion projects requiring compliant power solutions
Frequently Asked Questions
What certifications does this 10 kVA pad-mounted transformer have for North American use?
Leilang Electric's 10 kVA unit is UL/cUL listed and fully compliant with ANSI/IEEE C57, CSA and DOE 2016 standards. It has passed rigorous third-party testing to meet all North American utility-grade safety and efficiency requirements.
What are its exact energy losses and efficiency?
It delivers an ultra-low no-load loss of 47W and load loss of 156W, achieving a total efficiency of 98.3%. These values are 10-15% better than industry averages, translating to significant long-term electricity savings.
Do I need to build a separate substation for this transformer?
No. Its compact pad-mounted design allows direct installation on a simple concrete pad, eliminating the need for dedicated substations or pole mounting. Factory pre-wired units can be deployed in hours with no high-altitude work required.
What type of insulation oil is used, and is it environmentally safe?
We use biodegradable natural vegetable oil ester (non-PCB) as standard. This eco-friendly insulation offers superior fire resistance compared to mineral oil and poses no environmental hazard, making it ideal for residential and public areas.
What is the expected lifespan and maintenance requirement?
With 100% copper windings, galvanized steel enclosure and KNAN self-cooling, this transformer has a 20+ year service life. Its fully sealed structure minimizes dust and moisture ingress, requiring only annual visual inspections with no routine internal maintenance.
Can you customize voltage ratings, and what is the lead time?
Yes. While the standard configuration is 24940GrdY/14400V to 120/240V, we support custom primary voltages (13.8kV, 13.2kV, 12.47kV, etc.). Standard units ship within 15 business days, and custom configurations take 30-45 days.
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