SCB10 Cast Resin Transformer
The Cast Resin Transformer is a power transformer of which winding is enveloped with solid insulation. The epoxy resin is taken as the insulation material for the Epoxy Resin Dry-type Transformer. The high- and low-voltage windings are wound with the copper strip (foil), and epoxy resin is cast in vacuum for curing, constituting the high-strength fiber reinforced plastics structure. The insulation class includes Class F and Class H. The Epoxy Resin Dry-type Transformer has the features of good electrical performance, strong resistance to lightning shock, strong anti-short circuit ability, small volume, light weight, etc. The temperature display controller can be installed, and the operating temperature of the transformer winding is displayed and controlled, so as to guarantee normal service life of the transformer.
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 F
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 Voltage 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±2×2.5
±50.4
Dyn11 Yyn0
400
1570
4
1.8
125
470
1850
1.6
160
540
2130
200
620
2530
1.4
250
720
2760
315
880
3470
1.2
400
980
3990
500
1160
4880
630
1300
5960
6
1
800
1520
6960
1000
1770
8130
1250
2090
9690
1600
2450
11700
2000
3050
14400
0.8
2500
3600
17100
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
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 capability to short circuit.
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. An independent transformer chamber is not required, it is not required to lift the core for maintenance, and the load bearing beam is not required as well, which saves floor area for civil engineering; It is oil free, which will neither generate toxic gas nor pollute the environment. The oil sump and other auxiliary buildings are not required, so the construction cost is reduced.
7. Installation is convenient and commissioning free, and maintenance is almost not required; it is not required to replace and check oil seal, so the operation and maintenance cost is low.
Capacity
L × W × H (mm)
Total Weight (kg)
100
1080×740×950
520
200
1090×760×1160
930
315
1200×850×1180
1250
400
1410×900×1373
1460
500
1280×830×1470
1740
630
1550×850×1270
1780
800
1320×920×1350
2020
1000
1500×960×1395
2380
1250
1600×1000×1560
3310
1600
1600×1210×1700
3230
2000
1670×1150×1680
4250
2500
1670×1210×1820
4670
It is safe, flame-resisting, fireproof and free of pollution, and can be directly installed at the load center. It is maintenance-free, installation is simple and convenient, and the comprehensive operating cost is low. 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 pre-drying after stoppage. The loss is low, the partial discharge is low, the noise is small, the heat-sinking capability is strong, and it can operate at 150% rated load at the forced air cooling conditions.
It is equipped with a perfect temperature protection control system, which provides reliable guarantee for safe operation and high reliability. According to the research on the products that have been put into operation, the product reliability indicators have reached the international advanced level.
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
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