S11 2000kVA Oil-Immersed Distribution Transformer | 2MVA Power Type Transformer

65+ Years of Experience

S11 2000kVA Oil-Immersed Distribution Transformer | 2MVA Power Type Transformer

High-efficiency S11 2MVA (2000kVA) oil-immersed distribution transformer by ZTelec Yuguang. Low-loss design, fully sealed tank, superior insulation and ONAN/ONAF cooling. Compliant with IEC, GB and ANSI standards.

Rated voltage:10kv/35kv
Rated capacity:2000kva/customized
Application scenarios:ower distribution places such as industrial and mining enterprises, agriculture, and civil buildings, as well as places with a lot of oil pollution and chemical substances in the petroleum and chemical industries.

S11 2MVA Oil Type Power Transformer | 2000kVA Oil-Immersed Distribution Transformer

The S11 2MVA oil type power transformer from ZTelec Yuguang is a low-loss, high-efficiency solution for distribution networks, industrial plants and commercial power systems. Engineered for stable voltage regulation, robust insulation and long-term heavy-load performance.

Overview

The S11 series adopts an optimized magnetic core constructed with premium cold-rolled silicon steel to minimize no-load losses and operational noise. Designed to meet IEC, GB and ANSI standards, this 2000kVA oil-immersed transformer delivers reliable performance across varied operating environments.

Its fully sealed oil tank prevents moisture ingress and oxidation, enabling largely maintenance-free operation. Advanced oil circulation and thermal design ensure effective heat dissipation under sustained heavy loads.

Key Features & Benefits

High efficiency and low loss: Engineered to Level 2 energy efficiency, lowering operational costs and improving ROI over lifecycle.

Fully sealed tank: Maintenance-free design that reduces risk of contamination and leakage.

Superior insulation: High-performance epoxy and aramid materials improve dielectric strength and thermal endurance.

Environmentally safer oil: Low-flammability insulating oil for improved safety and regulatory compliance.

Flexible cooling modes: Available in ONAN (Oil Natural Air Natural) and ONAF (Oil Natural Air Forced) to suit installation and load profiles.

Typical Applications

The S11 2MVA distribution transformer is ideal for urban and rural grid upgrades, industrial substations, commercial buildings, renewable energy interconnection, and large manufacturing plants requiring continuous high-load service.

Why Choose ZTelec Yuguang

ZTelec Yuguang combines strict quality control, customized engineering and global after-sales support. Our S11 series is factory-tested for dielectric strength, temperature rise and acoustic performance to ensure reliable operation throughout the product lifetime.

S11 2000kVA Oil-Immersed Transformer Technical Parameters

Item	Specification
Model	S11-2000/10
Rated Capacity	2000 kVA (2 MVA)(customized up to 31500kva)
Primary Voltage	10 kV / 11 kV / 13.8 kV /35(customized)
Secondary Voltage	0.4 kV / 0.415 kV
Frequency	50 Hz / 60 Hz
Vector Group	Dyn11 or Yyn0
Impedance Voltage	4% ±10%
No-load Loss	2.60 kW
Load Loss (75℃)	19.6 kW
No-load Current	≤ 0.8%
Cooling Method	ONAN / ONAF (Oil Natural / Air Forced)
Insulation Class	Class A (Oil-filled)
Efficiency	≥ 98.5%
Protection Level	IP23–IP54 (optional)
Oil Type	Mineral Oil / Synthetic Ester / Silicone Oil
Applicable Standards	IEC 60076 / GB 1094 / ANSI C57
Manufacturer	ZTelec Yuguang – Power & Insulation Solution Provider