11kv Oil-Immersed Transformer with Advanced Cooling System for Substations

• Customization: Available
• Application: Power
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000
• Usage: Single-phase Transformer, Rectifier Transformer, Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Coil Number: Autotransformer
• Winding Material: Copper/Aluminium
• Frequency: 50Hz/60Hz
• Output Voltage: 220V, 380V, 400V, Customized
• Input Voltage: Customized, 15kv 20kv 22kv 24kv
• Transport Package: Wooden Box/Pallet
• Specification: Customized
• Origin: Hangzhou
• Production Capacity: 600pieces/Month

Product Description

Product Description

 

S11-M Series Fully Sealed Oil-Immersed Power Transformers

The S11-M series fully sealed oil-immersed power transformers, developed and manufactured by our company, offer advantages such as low energy loss, low noise, and high efficiency. These features ensure excellent energy-saving performance and reduced environmental impact.

Unlike conventional oil-immersed transformers, the fully sealed design eliminates the need for an oil conservator. Variations in oil volume are automatically adjusted and compensated by the elasticity of the corrugated fins on the tank. This design isolates the transformer from air, preventing oil degradation and insulation aging, thereby enhancing operational reliability and enabling maintenance-free operation under normal conditions.

Product Features

1. Low Core Loss and Noise Reduction

   • The transformer core is made of imported cold-rolled silicon steel sheets, significantly reducing no-load loss and no-load current.
   • The core is securely clamped to ensure tightness, further minimizing noise levels.

2. High-Quality Winding Materials

   • The high- and low-voltage windings are made of oxygen-free copper.
   • Low-voltage windings up to 500 kVA adopt a double-layer cylindrical structure, while those of 630 kVA and above use double- or quadruple-helical structures.
   • High-voltage windings feature a multi-layer cylindrical structure for enhanced performance.

3. Improved Power Quality

   • The transformer uses a Dyn11 connection group to reduce harmonic interference and improve the quality of power supply.

4. Fully Sealed Structure

   • The fully sealed design extends the transformer's service life, eliminating the need for core inspection or maintenance.

5. Low Noise Compliance

   • Measured noise levels are below industry standards, ensuring quiet operation.

 

Product Parameters

 

Type	Rated capacity(KVA)	Association group label	Voltage combination(KV)	No-load loss(W)	Load loss(W)	No-load current(%)	short circuit impedance(%)
S11-M-30	30	Yyn0 or  Dyn11	high voltage:6,6.3,10,10.5,11 Tap range:±5% or ±2×2.5% Low voltage:0.4	100	630/600	1.5	4.0
S11-M-50	50			130	910/870	1.3	4.0
S11-M-63	63			150	1090/1040	1.2	4.0
S11-M-80	80			180	1310/1250	1.2	4.0
S11-M-100	100			200	1580/1500	1.1	4.0
S11-M-125	125			240	1890/1800	1.1	4.0
S11-M-160	160			280	2310/2200	1.0	4.0
S11-M-200	200			340	2730/2600	1.0	4.0
S11-M-250	250			400	3200/3050	0.9	4.0
S11-M-315	315			480	3830/3650	0.9	4.0
S11-M-400	400			570	4520/4300	0.8	4.0
S11-M-500	500			680	5410/5150	0.8	4.0
S11-M-630	630			810	6200	0.6	4.5
S11-M-800	800			980	7500	0.6	4.5
S11-M-1000	1000			1150	10300	0.6	4.5
S11-M-1250	1250			1360	12000	0.5	4.5
S11-M-1600	1600			1640	14500	0.5	4.5
S11-M-2000	2000			1940	18300	0.4	5.0
S11-M-2500	2500			2290	21200	0.4	5.0

Detailed Photos

 

 

Factory detail

 

 

Certifications

 

Company Profile

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