SG(H)10 Dry Type Power Transformer
Briefly speaking, the Dry Type Transformer means the transformer in which the iron cores and windings are not immersed in the insulating oil.
It can be divided into two types by structure: (1) winding with solid insulation (2) winding without solid insulation. The Dry Type Transformer is used for fireproof and explosion-proof occasions. For example: general buildings, subways, etc.
Model Description:
Technical Parameters：
1. Rated Capacity: 100-2500kVA;
2. Rated Voltage: Primary Voltage of 10kV and 6KV
Secondary Voltage 0.4kV and others:
3. Rated Frequency: 50Hz;
4. Number of Phases: 3 phases;
5. Cooling Mode: AN/AF;
6. Temperature Resistance Level of the Insulation Materials: Level H;
7. For Technical Performance Data and Insulation Level, see Table 1 and 2.
Table 1 Performance Parameters of the Dry-type Transformer with Primary Rated oltage of 6kV, 10kV
Rated
Capacity
(kVA)
Voltage Combination
Connection
Unit Symbol
Loss
Impedance
Voltage (%)
No-load
Current (%)
Primary
Voltage kV
Primary Voltage
Tapping Range %
Secondary
Voltage kV
No Load W
Load W
100
6
10±5
0.4
Dyn11
405
1691
4
1.08
125
±2×2.5
Yyn0
477
1995
0.96
160
549
2290
0.9
200
630
2727
0.84
250
729
2964
0.84
315
891
3734
0.72
400
990
4294
0.72
500
1179
5254
0.72
630
1359
6327
0.6
630
1314
6413
6
0.6
800
1539
7486
0.6
1000
1791
8750
0.6
1250
2115
10431
0.6
1600
2475
12607
0.6
2000
3060
15552
0.48
2500
3600
18487
0.48
Table 2 Insulation Level
Rated Voltage (kV)
Rated Short-term Power Frequency Withstand Voltage (kV)
≤1
3
3
10
6
20
10
35
15
38
20
50
35
70
The SGH10 Series Transformer adopts an insulation system with DuPont NOMEX paper as the main insulating medium. It maintains an excellent electrical performance throughout the life of the transformer. NOMEX paper is not easy to age and has shrinkage resistance, compression resistance and strong elastic force. Therefore, it can ensure that the coil can still maintain a compact structure and withstand short circuit after using it for years. It has a high safety and overload capacity, free of flammability and toxic gas; and it doesn’t support combustion. It is convenient for repair and maintenance; and is insensitive to humidity, dust and pollution. Partial discharge is low, and there is no possibility to be 'cracked'. The coil adopts a pie type structure and a vacuum impregnation process, so as to improve mechanical strength and insulation strength of the coil. A bottom blowing structure of through-flow fan is adopted for the body, so as to improve heat emission efficiency. It is flexibly designed, and can be made of any specification required according to customer's requirements.
Capacity
L × W × H (mm)
Total Weight (kg)
100
1000×620×1080
430
200
1150×620×1145
890
315
1220×620×1280
1290
400
1260×620×1365
1530
500
1280×620×1435
1700
630
1360×700×1540
2190
800
1490×700×1390
2350
1000
1580×720×1480
2840
1250
1670×760×1555
3400
1600
1700×760×1690
3990
2000
1815×890×1690
4410
2500
1815×920×1820
5150
1. Oil-free, pollution-free, flame retardant and fireproof.
2. Low loss, high efficiency and low noise.
3. Small partial discharge capacity (generally below 10PC), high reliability. It can guarantee long-term safe operation, and the life span can be up to 30 years.
4. It can resist cracking and temperature changing, and has high mechanical strength and strong resistance to short circuit capability.
5. The moisture-proof performance is good, it can be in normal operation at the humidity of 100%, and it can be put into operation without drying after stoppage.
6. The independent transformer chamber is not required, it is not required to lift the core for maintenance, and the load bearing beam is not required, which saves floor area for civil engineering; It is oil free, will not generate toxic gas, and will not pollute the environment either. The oil sump and other auxiliary buildings are not required, and the construction cost of construction cost is reduced.
7. Installation is convenient without commissioning, and maintenance is almost not required; it is not required to replace and check oil seal, and the operation and maintenance cost is low.
1. The elevation shall not exceed 1,000m
2. Ambient Temperature Maximum temperature +40℃/104°F
Maximum daily average temperature +30℃/86°F
Maximum annual average temperature +20℃/68°F
Minimum temperature -30℃/-22°F (applicable for the outdoor transformer)
Minimum temperature -5℃/23°F (applicable for the indoor transformer)
3. The waveform of the supply voltage is similar to sine wave
4. The supply voltage connected with the multi-phase transformer shall be approximately symmetrical
-
About Huaxin
-
Follow Us
-
Share Us
©1996-2023 晉ICP備07500050號 Huaxin Copyright
©1996-2023 晉ICP備07500050號 Huaxin Copyright
