Liquid Immersed Transformer
The performance of S9-M, S10-M, S11-M 22kv series fully sealed oil-immersed distribution transformers meets IEC standards. The core wire is made of high-quality cold-rolled silicon wafers with a fully exposed, non-piercing structure, and the coil is made of high-quality oxygen-free copper....
Description
Liquid Immersed Transformer
The performance of S9-M, S10-M, S11-M 22kv series fully sealed oil-immersed distribution transformers meets IEC standards. The core wire is made of high-quality cold-rolled silicon wafers with a fully exposed, non-piercing structure, and the coil is made of high-quality oxygen-free copper.
Three-phase liquid immersed transformer
S13 series oil-immersed transformers comply with the technical parameters and requirements of national standards GB1094-2013 power transformers and GB/T6451-2015 three-phase oil-immersed power transformers, and are recommended as the main equipment products for the construction of national urban and rural power grids. And reformed by the State Economic and Trade Commission.
1、 What is an oil immersed transformer?
Oil immersed transformer, also known as oil immersed transformer, is a transformer device that uses oil cooling to reduce the temperature of the transformer. Unlike dry transformers, the main body of an oil immersed transformer is installed in a welded steel oil tank filled with insulating oil. When an oil immersed transformer is in operation, the heat from the coil and iron core is first converted into insulating oil and then into cooling medium. According to the capacity, it can be divided into immersed Free cooling transformer and immersed forced air cooling transformer.
2、 The structure and working principle of oil immersed transformers
Oil immersed transformers are structurally similar to transformers It is one of the types of transformers classified according to the insulation form of the iron core. Therefore, it has recognizable features of oil immersed coils, which can reduce the heat map of the equipment inside.
The basic components of the oil immersed type are composed of magnetic cores, windings, and bushings. The magnetic core provides a path for magnetic flux. The winding creates a magnetic field consisting of a conductor coil wound around an iron core and insulated with a cardboard barrier and shielding layer. The thickness of the winding insulation layer increases with increasing voltage. The bushing connects the transformer winding to the substation.
Oil type transformers are used for power distribution or substations. Their core and coils are immersed in oil, which can cool and insulate. Oil circulates through the pipes in the coil and around the coil and iron core components through convection. The oil is cooled externally by the fuel tank at low rated values, and by an air-cooled radiator at high rated values.
3、 Types of oil immersed transformers
There are two main types of oil immersed transformers: single-phase transformer and three-phase transformer.
A. One phase oil immersed transformer
B. Three-phase oil immersed transformer
4、 Purpose of using oil immersed transformers
Oil type transformers can be installed on the ground, base, or pole for outdoor use. They provide efficient performance in various applications, including transmission and distribution networks, renewable energy generation, and small industries.
The oil transformer has a huge capacity, so it will save a lot of electricity, minimize energy loss, save energy, and reduce user costs. Not only that, the oil in the machine can also cool the internal wire cores, thereby improving the durability and electrical performance of transformer equipment.
5、 Precautions for using oil-immersed transformers
1. Oil immersed transformers use oil for operation, so the quality of the oil will significantly affect the lifespan and safety of the transformer.
2. During use, it is necessary to regularly inspect and maintain the transformer system to ensure the normal and safe operation of the machine. Otherwise, there is a high risk of problems and extreme danger.
3. The waste generated by petroleum is prone to polluting the environment and affecting the lives of surrounding people. Therefore, the gradual disposal of waste is also important
Traduction pour : Transfo H61 20KV 160kVA B2
H61 Transformer 15(20)kV 160kVA B2
Three-phase MV / LV distribution transformer with MV and LV windings in wound copper power P = 160KVA
- Compliance: NFC 52 100 - 52 112 and 52 113 standard or equivalent in substance
- Natural cooling: ONAN
- MV voltage adjustment: by switch off +/- 5% in five (5) positions
- Type: on post H61
- Nominal power: 160KVA
- Primary rated voltage: 20,000V ± 5%
- Secondary voltage: 410V off-load between phases / 240V between phase and neutral
- Frequency: 50Hz
- Short-circuit voltage: 4%
- No-load loss less than or equal to 300W
- Load loss less than or equal to 2000W
- Coupling: Dyn11 with output neutral
- MV and LV crossings: in porcelain
PRODUCT PHOTO
NO | Item | Units | Technical parameters | ||
1 | Rated voltage | KV | 12 | ||
2 | Rated short-duration power frequency withstand voltage | 42/48(Interphase, ground/fracture) | |||
3 | Rated lightning impulse withstand voltage | 42/48(Interphase, ground/fracture) | |||
4 | Rated frequency | Hz | 50 | ||
5 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 630 1250 1600 2000 2500 3150 |
6 | Rated short-circuit breaking current | KA | 20/25 | 31.5 | 40 |
7 | Rated short-time withstand voltage | 20/25 | 31.5 | 40 | |
8 | Rated short circuit duration | S | 4 | ||
9 | Rated peak withstand current | KA | 50/63 | 80 | 100 |
10 | Rated short circuit closing current | 50/63 | 80 | 100 | |
11 | Secondary circuit power frequency withstand voltage (1min) | 2000 | |||
12 | Rated single / back to back capacitor group breaking current | A | 630/400(40kA:800/400) | ||
13 | Rated capacitor bank closing current | 12.5 (frequency is not greater than) | |||
14 | Mechanical life | KA | 20000 | ||
15 | Rated current breaking times (electrical life) | 20000 | |||
16 | Rated short circuit current breaking times | times | 50(40KA≤30) | ||
17 | Dynamic and static contacts allow wear cumulative thickness | mm | 3 | ||
18 | Energy storage time | s | ≤10 | ||
19 | Contact opening distance | mm | 11±1 | ||
20 | Overtravel | 3.5±0.5 | |||
21 | Contact closing bounce time | ms | ≤2(40KA≤3) | ||
22 | Three-phase split/closed period | ≤2 | |||
23 | Average opening speed (contacts are separated by -8mm) | m/s | 1.2±0.2 | ||
24 | Main conductive loop resistance | 0.6±0.2 | |||
25 | Main conductive loop resistance | μΩ | ≤50(630A)≤45(1250A) ≤40 (1600,2000A)≤35 (2500A or more) | ||
26 | Rated operation sequence | 0-0.3s-Co-180s-Co | |||
FACTORY WORKSHOP
PACKING&DELIVERY
EXHIBITION
FAQ:
1. Technical parameters need to be provided before quotation:
A. Rated capacity (such as 100kva, 630kva, 1250kva, etc.)
B. Voltage (for example, 10KV stepped down to 0.4KV)
C. Transformer type (oil-immersed transformer or dry-type transformer)
D. Winding material (copper or aluminum)
2. Do you provide OEM service?
Yes, customers' designs and logos can be provided.
3. What is your minimum order quantity?
Our minimum order quantity is 1 set.
4. What is your delivery time?
The delivery time is usually within 25 days after payment.
5. What is the loading port?
There are Qingdao, Shanghai and Lianyungang.
6. How do we visit your company?
Our factory is located in Henan, China
This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings
Here are our customer examples for your reference
Russian clients
Data Sheet N° 1-A: Transformer H61 20kV/400V of 100kVA
DESIGNATIONS | UNITS | SPECIFIC DATA | CANDIDATE DATA |
Maker | To be indicated | ||
Reference standard | IEC 60076 | ||
Type | Phase | ||
Vat | Hermetic | ||
Execution | Tropicalized | ||
Dielectric | PCB-free oil | ||
Installation | On pole | ||
Operating ambient temperature | °C | 45 | |
Rated frequency | Hz | 50 | |
Rated power | Kva | 100 | |
Rated primary voltage | Kv | 20 | |
Isolation level assigned to primary school | Kv | 24 | |
Number of phases in primary school | 03 | ||
Secondary voltage | V | 400/230 | |
Voltage adjustment range on the M side when unladen | % | ±2.5 | |
Coupling | DYn11 | ||
Short circuit voltage | % | 4 – 4.5 | |
Neutral sized for one load | % | 100 | |
Maximum vacuum losses | W | 230 - 460 | |
Losses due to Maxi load | W | 1450 - 2350 | |
Maximum steady-state oil temperature | °C | 55 | |
Maximum temperature of the windings in steady state | °C | 60 | |
Winding material | Electrolytic copper | ||
Maximum noise level | Db | 52 | |
50Hz industrial frequency hold, 1 min | Kv | 50 – 70 | |
Shock wave resistance (1.2/50 micros) | Kv | 125 - 170 | |
Cooling | ONAN | ||
Nameplate | 01 | ||
Grounding connection | 01 | ||
Dimensions Height/width/depth | mm x mm x mm | 1200 X 1270 X 820 | |
Total mass of transformer including oil | Kg | 700 | |
Oil mass | Kg | 160 | |
PAINT | |||
§ Tropicalized and anti-rust | |||
Number | § Layers | ||
§ Binder | |||
§ Colour | |||
Plans and technical diagrams to be provided. | |||
IF NEED MORE DETAILES,PLEASE FEEL FREE YO CONTACT US
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