Qingdao Hengfengyou Electrical Engineering Co., Ltd. |
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Product introduction
Dry-type transformer has the advantages of large short-circuit
resistance, little maintenance work, high operation efficiency,
small dimension and low noise, which is commonly used in places
with high requirements of fireproof and explosion-proof. This type
transformer is widely used in local lighting, high buildings,
airports, docks, CNC machinery and others. Its cooling methods are
divided into natural air cooling (AN) and forced air cooling (AF).
The transformer can operate continuously for a long time under
rated capacity under natural air cooling. Output capacity of the
transformer can increase by 50% under forced air cooling. It is
suitable for intermittent overload operation or emergency overload
operation. Due to the load loss and impedance voltage increase
significantly when overload, it is not suitable for long time
continuous overload operation.
·Structural features
1. Safe, fireproof and pollution-free;
2. Advanced technology, high mechanical strength, strong
short-circuit resistance, small partial discharge, good thermal
stability, high reliability and long service life;
3. Low loss, low noise, obvious energy-saving effect,
maintenance-free;
4. Good heat dispersion and strong overload capacity. Forced air
cooling can improve operation capacity;
5. Good moisture-proof performance, suitable for high-humidity and
another harsh environment;
6. The dry-type transformer can be equipped with complete
temperature detection and protection system. The intelligent signal
temperature control system, with the function of alarm and circuit
trip, can automatically detect and display the working temperature
of the three-phase winding, automatically start and stop the fan.
7. Small dimension, light weight, small floor area and low
installation cost.
Type | Rated Power | No-load | Load Loss | short circuit impedance |
SCB12-315 | 315 | 0.71 | 3.47 | 4 |
SCB12-400 | 400 | 0.79 | 3.99 | 4 |
SCB12-500 | 500 | 0.93 | 4.88 | 4 |
SCB12-630 | 630 | 1.07 | 5.88 | 4 |
SCB12-630 | 630 | 1.04 | 5.96 | 6 |
SCB12-800 | 800 | 1.22 | 6.96 | 6 |
SCB12-1000 | 1000 | 1.42 | 8.13 | 6 |
SCB12-1250 | 1250 | 1.67 | 9.69 | 6 |
SCB12-1600 | 1600 | 1.96 | 11.73 | 6 |
SCB12-2000 | 2000 | 2.44 | 14.45 | 6 |
SCB12-2500 | 2500 | 2.88 | 17.17 | 6 |
Conditions of use
* Device types: indoor type
* Normal environment conditions of use: the elevation not more than
1000 m
* Environmental highest temperature + 40℃, minimum-25 ℃
* The special environment conditions of use: elevation of more than
1000 m
* Environmental highest temperature + 40 ℃, minimum-45 ℃. (when you
order details)
* Mounting ambicnt: no corrosive gas, no obvious dirt environment
Applicable standard
* IEC60076 power transformer
* IEC723 dry power transformer
* GB6450-1986 dry power transformer
* GB/R1094-1996 power transformer
* GB4208-1993 outer shell protect grade(IP code)