详情描述
SG(B)10 Series Three-Phase Open TypeDry-Type TransformerFeatures:
SG(B)10 Three-phase Open TypeDryThe transformer is an open type dry transformer made from DuPont's NOMEX (Normark) insulation material using the VPI (Vacuum Pressure Impregnation) process, with its technology originating in the United States. It does not support combustion during operation, can resist fire, will not explode or release toxic gases, and does not pose harm to the environment, other equipment, or human beings; it is insensitive to humidity, dust, and pollution. It operates without partial discharge and will never crack. It boasts high reliability, with both high and low voltage windings insulated with NOMEX material and repeatedly impregnated with Class H solvent-free varnish using VPI vacuum pressure equipment, followed by multiple high-temperature baking cures. The product is Class H (180°C), while the primary insulation material is Class C (220°C), demonstrating strong overload capacity and excellent anti-short-circuit capabilities. Under well-ventilated conditions, it is allowed to operate at an overload of 20%.
SG(B)10 Series Three-Phase Open Type Dry TypeTransformerApplication Scope:
The SG(B)10 series three-phase open dry-type transformers offer strong resistance to thermal shock, high overload capacity, flame retardancy, excellent fire resistance, and insensitivity to humidity and dust, which contribute to their wide adaptability.
SG(B)10 Series Three-Phase Open TypeDry-type TransformerIdeal for installation in humid environments and areas with high fire safety requirements and heavy loads, this power distribution equipment is suitable for high-rise buildings, airports, stations, harbors, subways, power plants, metallurgical industries, shopping centers, densely populated residential areas, as well as sites such as oil and chemical plants, nuclear power stations, and nuclear submarines.
According to customer requirements, configurable with standard steel plate, aluminum alloy, or stainless steel casings. Available protection ratings include IP20, IP23, etc. High and low voltage busbars can be configured for incoming and outgoing lines as per customer needs.

Designated Capacity | Voltage Combinations | Connector group number | Short-circuit Impedance | No-load loss | Load loss | No-load current | Sound Level | Weight | ||
High-pressure | Tap | Low-pressure | ||||||||
125 | 6 | ±5% | 0.4 | Y yn0 | 4 | 480 | 1710 | 0.9 | 45 | 750 |
160 | 550 | 1860 | 0.9 | 45 | 900 | |||||
200 | 630 | 2210 | 0.8 | 46 | 1050 | |||||
250 | 730 | 2410 | 0.8 | 47 | 1280 | |||||
315 | 890 | 3040 | 0.7 | 47 | 1550 | |||||
400 | 990 | 3490 | 0.7 | 48 | 1700 | |||||
500 | 1170 | 4280 | 0.6 | 48 | 2150 | |||||
630 | 1350 | 5150 | 0.5 | 48 | 2400 | |||||
630 | 6 | 1300 | 5220 | 0.5 | 49 | 2450 | ||||
800 | 1530 | 6100 | 0.4 | 50 | 2950 | |||||
1000 | 1790 | 7130 | 0.4 | 51 | 3500 | |||||
1250 | 2110 | 8500 | 0.3 | 52 | 3900 | |||||
1600 | 2470 | 10290 | 0.3 | 53 | 4600 | |||||
2000 | 3350 | 12690 | 0.25 | 54 | 5500 | |||||
2500 | 4000 | 15080 | 0.25 | 54 | 6200 | |||||
Normal usage conditions are met under the following usage requirements:
a. Altitude
Altitude not exceeding 1000m.
b. Environmental Temperature
To High Temperature +40℃
ToHigh Average Daily Temperature +30℃
ToAverage Annual High Temperature: +20℃
ToLow temperature -30℃ (suitable for outdoor transformers)
ToLow temperature -5℃ (suitable for indoor transformers)
c. Power voltage waveform
The waveform of the power voltage is similar to a sine wave.
d. Symmetry of multi-phase power voltage
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