S22 type (first-level energy efficiency) three-dimensional wound core series distribution transformer
The oil-immersed three-dimensional wound core transformer is a high-efficiency and energy-saving power transformer. It adopts advanced three-dimensional wound core technology. The core is assembled from three identical frames. When the silicon steel is slit, nearly 100% utilization can be achieved through nesting, and there is less leftover material.
Specifications
GB 10230.1 Tap changer Part 1Performance requirements and test methods
Details
Product Overview
The oil-immersed three-dimensional wound core transformer is a high-efficiency and energy-saving power transformer. It adopts advanced three-dimensional wound core technology. The core is assembled from three identical frames. When the silicon steel is slit, nearly 100% utilization can be achieved through nesting, and there is less leftover material. The silicon steel sheets are tightly wound and have no seams. The core filling coefficient is high and the magnetic resistance is small. Continuous winding can ensure that the magnetic conductivity direction of silicon steel is consistent with the actual magnetic flux direction. The length of the three-phase magnetic circuits of the three-dimensional wound core is the same, which can achieve the balance of the three-phase magnetic circuits. The no-load loss and no-load current are greatly reduced, and the noise is reduced by more than 10dB. The product is widely used.
Model meaning
Product features
High efficiency and energy saving: It adopts a three-dimensional rolled core structure with even magnetic circuit distribution, which reduces the joint loss of the traditional laminated core. The no-load loss and load loss are significantly reduced. The energy efficiency level reaches S20 standard and above, and the energy saving effect is obvious.
Low-noise operation: The three-dimensional rolled iron core has fewer seams and small magnetic resistance. The vibration and noise are greatly reduced during operation. It is suitable for noise-sensitive environments, such as residential areas, hospitals and schools.
Oil-immersed cooling: Using mineral oil as the cooling and insulating medium, it has excellent heat dissipation performance and can effectively reduce the operating temperature of the transformer. It is suitable for long-term high-load operation and extends the life of the equipment.
High reliability: optimized insulation and heat dissipation design, strong short-circuit resistance, stable and reliable operation, adaptable to various complex working conditions, and reduced failure rate.
Environmentally friendly design: using environmentally friendly materials and processes, complying with green manufacturing standards, reducing the impact on the environment, and meeting the environmental protection requirements of modern power systems.
Compact structure: The three-dimensional rolled iron core design makes the transformer small and light, easy to transport and install, saving space, and is especially suitable for places with limited space.
Easy maintenance: The oil-immersed design facilitates internal inspection and maintenance, reduces operation and maintenance costs, and extends the service life of the transformer.
Strong short-circuit resistance: the three-dimensional wound iron core has a solid structure and reasonable winding design, which can withstand large short-circuit current impacts and ensure safe operation of the equipment.
Low temperature rise: Oil-immersed cooling and the optimized design of the three-dimensional wound core make the temperature rise lower when the transformer is running, improving the reliability and life of the equipment.
Strong adaptability: It can adapt to various complex environments and working conditions, such as high temperature, high humidity, high altitude, etc., and is widely used in power systems, industrial and mining enterprises, urban power grids, rural power grids and other scenarios.
Good economy: Although the initial investment is high, due to its high efficiency, energy saving and low maintenance costs, the long-term operation economy is significant and the overall cost is low.
Intelligent optional: can integrate intelligent monitoring system to monitor current, voltage, temperature and other parameters in real time, support remote control and fault diagnosis, and improve operation and maintenance efficiency.
Usage environment
Serial number
Name
Unit
Required value
1
Ambient temperature
Maximum daily temperature
℃
45
Minimum daily temperature
-45
Maximum daily temperature difference
K
25
2
elevation
m
≤1000
3
Solar radiation intensity
W∕cm2
0.1
4
Maximum ice thickness
mm
20
5
Seismic resistance
Ground horizontal acceleration
ms-2
3
Sinusoidal resonance three period safety factor
≥1.67
6
Installation location
Indoor/outdoor
Application environment
Oil-immersed laminated core transformer is suitable for the following scenarios:
Used as a boost or step-down device in power systems
Power distribution and transmission in industrial areas
Electricity supply and backup power in commercial buildings
Other places that require stable and reliable power supply
10kV oil-immersed three-dimensional wound core distribution transformer standardized design test plan
Technical parameters
Model
Rated Capacity (kVA)
Typical voltage combination (kV)
Connection group Label
Impedance Voltage (%)
Total weight (t)
Reference size (mm) L*W*H
No load Loss (W)
Load loss (W)
S22-M.RL-30/10
30
High Voltage H.V. style="mso-pagination:widow-orphan;text-align:center;vertical-align:bottom;">6.3,
10,
10.5
Low voltage L.V.
0.4
Dyn11
YynO
4
0.5
720*480*850
65
455/430
S22-M.RL-50/10
50
0.55
750*500*900
80
655/625
S22-M.RL-63/10
63
0.65
800*600*950
90
785/745
S22-M.RL-80/10
80
0.7
1000*720*980
105
945/900
S22-M.RL-100/10
100
0.8
1050*750*1000
120
1140/1080
S22-M.RL-125/10
125
0.95
1100*760*1050
135
1360/1295
S22-M.RL-160/10
160
1
1120*770*1070
160
1665/1585
S22-M.RL-200/10
200
1.1
1150*800*1100
190
1970/1870
S22-M.RL-250/10
250
1.3
1300*950*1100
230
2300/2195
S22-M.RL-315/10
315
1.55
1400*1000*1100
270
2760/2630
S22-M.RL-400/10
400
1.8
1400*1000*1200
330
3250/3095
S22-M.RL-500/10
500
2.65
1700*1200*1400
385
3900/3710
S22-M.RL-630/10
630
4.5
3.3
1800*1300*1500
460
4460
S22-M.RL-800/10
800
3.65
2150*1950*2000
560
5400
S22-M.RL-1000/10
1000
4.3
2200*2000*2050
665
7415
S22-M.RL-1250/10
1250
4.85
2300*2100*2100
780
8640
S22-M.RL-1600/10
1600
5.95
2400*2200*2200
940
10440
S22-M.RL-2000/10
2000
5
7.3
2500*2400*2300
1085
13180
S22-M.RL-2500/10
2500
8.5
2700*2600*2500
1280
13360
Reference standard application environment
GB/T 1094.1 Power Transformers Part 1: General Provisions
GB/T 1094.2 Power transformer Part 2: Temperature rise of liquid-immersed transformer
GB/T 1094.3 Power transformer Part 3: Insulation level, insulation test and external insulation air gap
GB/T 1094.4 Power Transformers Part 4: Guidelines for Lightning Impact and Operational Impact Tests of Power Transformers and Reactors
GB/T 1094.5 Power transformer Part 5: Ability to withstand short circuit
GB/T 1094.7 Power Transformers Part 7: Loading Guidelines for Oil-immersed Power Transformers
GB/T 1094.10 Power transformers Part 10: Sound level determination
GB 2536 Unused mineral insulating oil for electrical fluid transformers and switches
GB/T 2900.95 Electrical Terminology Transformers, Voltage Regulators and Reactors
GB/T 4109 Insulating bushings with AC voltage higher than 1000V
GB/T 5273 Terminal blocks for transformers, high-voltage electrical appliances and bushings
GB/T 6451 Technical parameters and requirements for oil-immersed power transformers
GB/T 7595 Transformer oil quality during operation
GB/T 8287.1 Indoor and outdoor post insulators for systems with nominal voltages above 1000V Part 1: Tests of porcelain or glass insulators
GB/T 8287.2 Indoor and outdoor post insulators for systems with nominal voltages higher than 1000V Part 2: Dimensions and characteristics
GB 10230.1 Tap changer Part 1: Performance requirements and test methods
GB/T 10230.2 Tap-changer Part 2: Application Guidelines
GB/T 11022 Common technical requirements for high-voltage switchgear and control equipment standards
GB/T 13912 Metal covering layer Technical requirements and test methods for hot-dip galvanizing of steel parts
GB/T 13499 Guidelines for application of power transformers
GB/T 15153.1 Telecontrol equipment and systems Part 2: Working conditions Part 1: Power supply and electromagnetic compatibility
GB/T 16927.1 High voltage test technology Part 1: General definition and test requirements
GB/T 16927.2 High Voltage Test Technology Part 2: Measurement System
GB/T 17468 Guidelines for Selection of Power Transformers
GB 20052 Energy efficiency limit value and energy efficiency grade of power transformer
Product features
