138kv Electric Step Down Power Transformer Compact Substation

• Customization: Available
• Application: Power, Electronic, Lighting, Oil Filled Electrical Transformer
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC, CE/UL
• Usage: Single-phase Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Substation Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: China
• Frequency: 50/60Hz
• Rated Capacity: 30-2500kVA
• Coil Structure: Layer Coil
• Input Voltage: 110kv 121kv 132kv 220kv
• Output Voltage: 6.3/6.6/10.5/11/35/38.5kv
• Winding: Copper/Aluminum
• Cooling Way: Onan/Onaf/Odaf/Pfaf/Ofwf/Knan/Knaf
• Rated H.V.: 220kv
• Rated L.V.: 6.3kv
• Standard: IEC60076
• Vector Group: Dyn11/Yyn0
• Insulation Level: as Per IEC Standard
• Core Material: Silicon Steel
• Temperature Rise (W): 60-65K
• Warranty: 24 Months
• Transport Package: Wooden Case
• Specification: 1500.00cm * 1500.00cm * 2000.00cm
• Origin: China
• HS Code: 850434900
• Production Capacity: 6000pieces/Year
• Package Size: 260.00cm * 300.00cm * 380.00cm
• Package Gross Weight: 6800.000kg

Product Description

Oil immersed power transformer has obtained multiple certifications and its product quality is favored by customers.
If your order quantity is large, we can customize the certificate for you need certificate.

Transformers Cores Matericals,we can customized two kinds of : Amorphous Alloy Cores or Silicon Steel Cores.

Power Transformers Coil Matericals,we also can customized two kinds of : Copper Coil or Aluminum Coil.
and There are more technologies to meet your needs.
I hope recive you massage.

Why i can say this information about custom Power transformer,Distribution transformer,Subtation transformer,Special transformer?
Because our factoy have more than 300 engineering and technical personnel,more than 1200 employees,covering an area of 240000 square meters.
Of course, our prices are reasonable and cheap, guaranteed to fit your purchasing plan.Dont't worry you plan.
We very much welcome all future partners to visit our factory and office.

Believe in the quality of our products.
Our products are mainly supplied to large national enterprises in China: State Grid, China Southern Power Grid, China Railway, various types of hydropower stations, wind power stations, photovoltaic power stations, etc. Customers can be assured of product quality.

We also cooperate with large companies abroad. For example, ENERGOMAX LLC, GREENS LTD, UZTRANSFORMERLLC, Meta Power Solutions,CENTURY ENGINEERING CONTRACTOR LTD.,MALAYSIA PHASE 2 POWER STATION PROJECT,ETC.

Product Description

110KV~220KV Power transformer

   High pressure transformer ,use Japanese Toshiba analysis software and our company special calculation and validation procedure. In order to ensure the performance of product, we design and test to the transformer core, coil, the body of machine, lead wire, oil tank and other parts of machine.
 

   Our product SSZ11-40000/110 has passed the short-circuit bearing capacity and all routine type tests of the National Transformer Quality Supervision and Inspection Center.
 

  This product has the characteristics of stability, economy, reliability and environmental protection, and is suitable for power plants, substations and large industrial, mining and petrochemical enterprises.
 

Oil Immersed Power Transformer Core 

The core is beveled and stepped for maximum performance and minimal bulk. After the magnetic steel is produced by the cutting machine, it is continuously cut into specific lengths by the automatic stacking machine, and then automatically stacked. The correct size is ensured during the entire stacking and assembly process to ensure the high quality of the product.

Oil Filled Electrical Transformer Winding

The low voltage winding adopts the whole section of copper foil, which is wound on the special low-voltage foil winding machine with the F-grade insulation. The foil coil solves the outstanding problems such as low voltage, high current coil winding, high short-circuit stress, unbalanced ampere turns, poor heat dissipation effect, windingspiral angle, unstable manual welding quality and so on. At the same tim-e, the winding ends of our company aresealed with resin, cured and formed, moisture-proof and antifouling. The lead copper bar is automatically welded byargon arc welding.

Transformer Test

Transformer ratio and connection
Measurement of load losses and short circuit impedance.
Measurement of no-load losses.
Separate source withstand voltage test
Induced over-voltage test
Temperature rise test
Lighting impulse withstand voltage test
Measurement of partial discharge
Other transformers like rectifier transformer are also available on request.
 

Product Feature

1 - Low loss, low noise, low partial discharge, low temperature rise and energy-saving
2 - Adopt the latest insulatoin structure
3 - Excellent anti-short-circuit ability.

4 - As to the heat dissipating element adopts corrugated sheet or sheet radiator and other components.

5 - The iron core adopts high quality cold rolled graind oriented silicon steel sheet ,it is low loss and small magnetostriction.The whole iron core adopts the structure of 45-degree full oblique joint and round cross-section, which will not be loosened due to vibration during transportation and operation.

Oil immersed transformer ,use Japanese Toshiba analysis soft ware and our company special calculation and validation procedures to make sure the performance of products. Superior process equipment ,elaborate material selecting and efficient manufacturing make the transformer have small volume,light weight,low loss,low partial discharge,low noise characteristics.
The product is stable,reliable,economic, environmental protection.It can be applied to many places such as power plants,transformer substation ,large industrial mining and petrochemical enterprise and so on.

Advantage of materials
 
1.because we use oxygen-free copper lines of lower resistivity, which will become smoother and burr-free after series of additional surface treatment, so the load loss of our transformer is lower and the electric performance is better.
 
2.We use high-quality silicon-steel plates which are of lower unit loss, and no-load of the transformers is lower;
3.We use high-quality wooden laminating insulation pieces, which won't split or move even under the influence of short circuit;
4.We use thoroughly filtrated transformer oil containing less water ,gas and impurities, which makes our transformer work better;
5.We use high-quality rubber sealing material, which can prevent the transformers form aging or leakage;
6.All materials has passed the quality testing, and all the raw material factories has pass through the national standard ISO9000 inspection.
Advantage of technology


Temperature control device:
The transformer adopts the BWDK series signal thermometer. The temperature measuring element is embedded in the upper half of the low-voltage coil, which can automatically detect and display the respective working temperature of the phase coil, and has the function of over temperature alarm and trip.

More Product Parameters

Oil Filled Electrical Transformer

Main Technical Parameters for oil-immersed power transformer
Rated Power(kva)	High Voltage(kv)	H.V.Tap range	Low Voltage(kv)	Connection symbol	Short Circuit Impendence	No-load loss(kw)	On-load loss(kw)	No-load current(%)
6300	63 66 69 110 132 138 220	±8x 1.25%	6.3 6.6 10.5 11 33 69	YNd11  YNyn0 others	10-14	9.4	34	0.63
8000						11.2	40.4	0.63
10000						13.1	47.6	0.75
12500						15.4	56.5	0.53
16000						18.5	69.5	0.49
20000						21.8	84.2	0.49
25000						25.6	99.5	0.4
31500						30.4	120	0.4
40000						36.2	140.3	0.39
50000						42.6	174.3	0.39
63000						52	210	0.39
75000						60	238	0.49
90000						69	274	0.49
120000						85	328	0.46
150000						101	385	0.42
160000						105	404	0.42
180000						115	436	0.42
240000						144	539	0.4

 

Certifications

Customer Reviews

Company Profile

Our company has a relatively strong production capacity and efficient marketing team.Products include 110KV,220KV large ultra-high voltage transformers and 35KV below various dry transformers,oil-immersed transformers,amorphous alloy transformers,pre-installed substation and various specifications of box transformer,furnace transformer,rectifier transformer,mining transformer and other special transformers.All products of the company have passed the routine,type and special tests of the National Transformer Quality Supervision and inspection Center and wuhan High Voltage Research Institute of the State Electric Power Corporation.The enterprise has passed IS09001:2015 quality management system certification;Jiangsu province enterprise measurement certification;At the same time,10KV,35KV class power transformers,box substation and the adoption of IEC certification.Product sales cover the national market,but also exported to Australia,New Zealand,India,Madagascar,Vietnam and other countries and regions.

Transformer for On-site installation

FAQ

1.Who are we?
We are transformer company, based in Jiangsu, China, start from 2007,sell to Domestic Market(80.00%),Southeast Asia(20.00%). There are all about 1200-1500 people in our company.

2.How can we guarantee quality?
 Always make a final Inspection before shipping.
 

3.What can you buy from us?
110kV-220kV Oil-immersed Power Transformer,Dry-type Transformer,Unpacked H Grade Dry Transformer,Oil-immersed Distribution Transformer, Pad-mounted Transformer,Enameled Wire,Composite Wire,Transposed Wire,Paper Covered Wire,Film Wrapped Wire.
 

4.Why should you buy from us not from other suppliers?
As an enterprise specializing in transformer production for 31 years, we have high quality, fast delivery, guarantee after-sales service and factory price. What's more, we have ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L ,UL ,CE certificates and IEC, ANSI, KEMA, GOST standard.
 

5.What services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW; Accepted Payment Currency:USD,CNY; Accepted Payment Type: T/T,L/C; Language Spoken:English,Chinese.