S11 Series 33kv/400kVA Oil Immersed Transformer with off-Circuit Tap-Changer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier
• Phase: Three
• Model NO.: S11-400/33
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Coil Structure: Layer Coil
• Rated Primary Voltage: 10 or Others
• Rated Secondary Voltage: 0.4 or Others
• Rated Capacity: 1250kVA or Others
• Type: Distribution Transformer
• Winding Material: Copper/Aluminum
• Connection Symbol: Dyn11,Yyn0,Yzn11
• Input Voltage: 10kv,11kv,15kv,22kv,30kv
• Output Voltage: 380V,400V
• Transport Package: Standard Export Case
• Specification: 870*730*1020
• Trademark: XH
• Origin: Zhejiang, China
• HS Code: 8504231100
• Production Capacity: 1200 Sets Per Month
• Package Size: 1000.00cm * 1000.00cm * 1000.00cm
• Package Gross Weight: 1000.000kg

Product Description

 

Products Description

Introducing the S22-M(30-2500)/10: a superbly engineered 3-phase oil-immersed distribution transformer, designed to deliver unparalleled performance and reliability.

The oil-immersed transformer is an essential power equipment, prevalently utilized in the power system for its reliability and efficiency.

Basic Structure:
The oil-immersed transformer is comprised of several key components including the core, windings, oil tank, insulation bushings, radiators, and more. The core, constructed from laminated silicon steel sheets, minimizes eddy current losses, while the windings, made from copper or aluminum wires, facilitate voltage transformation through electromagnetic induction. The oil tank houses the transformer oil, which is vital for insulation, cooling, and heat dissipation. Working Principle:
Operating on the law of electromagnetic induction, the transformer alters AC voltage based on the turns ratio between the primary and secondary windings. When the primary winding is energized by an AC power source, an alternating magnetic flux is created in the core, thereby inducing the appropriate voltage in the secondary winding. Features:

1. Exceptional insulation performance: The transformer oil provides excellent insulation, significantly reducing the risk of short circuits between the windings and the core.
2. Superior heat dissipation: The oil's excellent fluidity rapidly dissipates heat generated during operation, ensuring the transformer remains within optimal temperature ranges.
3. Robust overload capacity: The transformer can endure short-term overloads, making it adaptable to unexpected power system conditions.

Application Fields:
Oil-immersed transformers are integral to power plants, substations, and industrial and mining enterprises, providing suitable voltage levels for power transmission, distribution, and utilization.

For instance, in large-scale industrial production, these transformers supply stable power to high-power equipment, while in urban grids, they convert transmission voltage to levels appropriate for residential and commercial use.

 

Mainly Components:
The mainly parts of this transformer include Oil Tank, Conservator, Buchholz Relay, Breather Unit, Oil Indicator, Temperature Detector, Pressure Relief Device, Thermal Relay, Radiator, and Bushing.
1.  The oil tank is used to soak the windings by placing it in.
2.  Comply with IEC standards with CE/ISO certificates
3.  be easily contacted & enlarge throughout loading so that the temperature of the oil can be increased and decrease.
4.  Buchholz relay is used when a conservator tank is used.  Because it indicates errors like loss of oil once it goes low, improper flow of oil between the tank & transformer.
5.  Breather Unit includes silica gel that absorbs moisture in the oil.  It changes its color from blue color to pink color it is not capable to absorb moisture in the oil.
6.  The oil indicator indicates the level of the oil within the conservatory unit.
7.  The temperature detector monitors the temperature of the oil.  If the temperature of the oil increases to a certain level then the transformer will be disconnected from the service.
8.  Pressure relief device decreases the pressure within the transformer to avoid an explosion of the transformer.
9.  Thermal relay is used as an indicator for the temperature of the winding
10.  Full galvanized coating   no rust
11.  The bushing is used to connect the internal windings of the transformer with the help of an exterior electrical network.
The rated voltage can be customized as customers' requirements.
Product parameters

Rated capacity(kVA)	High voltage(kV)	High voltage  tapping range (%)	Low voltage(kV)	Vector Group symbol	No-load Loss (kW)	On-load Loss(kW)	No-load Loss (kW)	On-load Loss (kW)	Short-circuit resistance (%)
					Model 11		Model 13
30	6 6.3 10 10.5 11	±2 × 2.5 or ±5	0.4	Dyn11 or Yyn0	0.1	0.63/0.6	0.08	0.63/0.6	4.0
50					0.13	0.91/0.87	0.1	0.91/0.87
63					0.15	1.09/1.04	0.11	1.09/1.04
80					0.18	1.31/1.25	0.13	1.31/1.25
100					0.2	1.58/1.5	0.15	1.58/1.5
125					0.24	1.89/1.8	0.17	1.89/1.8
160					0.28	2.31/2.2	0.2	2.31/2.2
200					0.34	2.73/2.6	0.24	2.73/2.6
250					0.4	3.2/3.05	0.29	3.2/3.05
315					0.48	3.83/3.65	0.34	3.83/3.65
400					0.57	4.52/4.3	0.41	4.52/4.3
500					0.68	5.41/5.15	0.48	5.41/5.15
630					0.81	6.2	0.57	6.2	4.5
800					0.98	7.5	0.7	7.5
1000					1.15	10.3	0.83	10.3
1250					1.36	12	0.97	12
1600					1.64	14.5	1.17	14.5
2000					1.94	18.3	1.36	18.3	5

 

PRODUCTS CATEGORIES

 

 

Company Profile

is a professional manufacturer of high and low voltage switch transmission and distribution equipment and high and low voltage electrical components, the production of fully insulated fully sealed inflatable cabinets, intelligent solid insulated ring host units, outdoor high voltage cable branch box, box-type substation, etc Product quality is stable, reliable, It is deeply trusted and approved by the customers. Our proudly exports its high-quality productsto a myriad of global destinations, with a significant presence in diverse and dynamic countries such as Ghana, Gambia, Ethiopia, the Philippines, South Korea, Bangladesh, Australia, Pakistan, Azerbaijan, Myanmar, and beyond. Our 11kV Current Transformer with 50Hz Frequency for Indoor Use has consistently garnered rave reviews for its impeccable quality and outstanding performance.

Our dedicated team excels in crafting the most cost-effective and innovative power solutions, tailored precisely for our clients' needs. We actively contribute to the design of sophisticated substation and distribution plans and engage in competitive overseas bidding. We have triumphantly addressed and resolved intricate product requirements, ensuring our clients' utmost satisfaction.

PRODUCT WORKSHOP

Certifications

Our credentials are bolstered by the acclaimed ISO certification . Additionally, we possess an extensive collection of diverse type test reports that exemplify the unparalleled quality and reliability of our products.

Packaging & Shipping

Our dedicated packaging team excels in customizing exquisite wooden boxes, crafting distinctive logos, selecting vibrant colors, and designing unique labels tailored precisely to meet your requirements. We ensure that each product is impeccably packaged, safeguarding its integrity, and is dispatched with precision to reach you promptly.

FAQ

Q1: Are you a trading company or manufacturer ?
A1: We are a professional factory with 7 years experience in the field of high and low voltage power transformers, substation, vacuum circuit breaker, power equipment.

Q2: Do you accept customized serveice ?
A2: We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied project according to your drawing and parameters .
 

Q3: What is your MOQ?
A3: Our MOQ is 1 piece.

Q4: How long is your delivery lead time ?
A4: It depends on your product requirement and quantity . Generally , 5~10 working days is avaliable .
 

Q5: How do you solve quality problems?
A5: Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make asatisfied soluton within 2 days .

 

Q6: What is the price of shipping?
A6: Depending upon the port of delivery, prices varies.

Q7: What is your payment terms ?
A7: 30%T/T in adcance,70% before shipment . West union , L/C are also acceptable .