Customized Three Phase Distribution Transformer 250kva 500kva 11kv 220V/480V Cooper/Aluminum Winding ONAN for Industrial Use

Product Description

Products Description
Product Advantages

Prolonged Service Life

Hermetic sealing shields internal parts from moisture and contaminants, extending lifespan by 30%+ compared to open-type models.

Minimal Maintenance

Sealed design eliminates needs for regular moisture checks or contamination cleanup, cutting maintenance workload by 50%.

Operational Reliability

Reduced exposure to external factors minimizes failure risks in critical applications like power grids and industrial plants.

Environmental Protection

Prevents oil leaks that could contaminate soil/water, aligning with EPA standards for eco-friendly operation.

S11-M Series 10kV Oil-Immersed Transformer Parameters
Rated Capacity (kVA) Voltage Combinations (kV) Connection Method No-load Loss (W) Load Loss (W) No-load Current (%) Short-circuit Impedance (%)
HV LV
306.3 / 10 / 10.5 / 110.4Dyn11 or Yyn01006301.54
501309101.34
10020015801.14
20034027301.04
31548038300.94
50068054100.84
63081062000.64.5
10001150103000.64.5
16001640145000.54.5
25002290212000.45
Company Profile & Manufacturing
Applications
Certifications & Delivery
Frequently Asked Questions
Who are we?
We are a leading professional manufacturer of transformers, substations, and high/low voltage switchgear, supported by a team of over 10 expert engineers and 150 dedicated employees.
How do you guarantee product quality?
Quality is ensured through a rigorous process: we always provide a pre-production sample before mass production and conduct a 100% final inspection before every shipment.
Do you accept Factory Acceptance Tests (FAT)?
Yes, FAT is fully available. We take complete responsibility for the testing of each transformer set to meet your requirements.
What standards do your products follow?
Our products are manufactured to match IEC, IEEE, ANSI, and GOST standards. We hold ISO9001, OHSAS 18001, CE, UL, and CSA certifications, along with comprehensive type test reports.
Are OEM and ODM services available?
Yes, we provide customized solutions including OEM and ODM services to meet the specific technical needs of our clients.
How long is the delivery lead time?
Lead time depends on product requirements and quantity. Generally, standard orders are fulfilled within 5 to 15 working days.

Related Products