Dry type transformer
SCB Dry Type power distribution transformer
Product Description
1. Application
1). Our power transformers are especially suitable for installation
in draw-out type or fixing type switchgears as well as for power
plants, substation, self-consumption transformers, power
distribution, transmitter system, earthing system, community power
supply system, subway, or those places where small space,
fire-control, moisture-proof, are needed. Those up to 10kV can be
installed in 650 ~ 1200 mm wide switchgear, up to 20kV in a 1000mm
wide switchgear and 35kV in 1400 ~ 1600 mm wide switchgear.
2).Our series reactors are suitable for a power system of
6~10kV.They are connected serially with high voltage parallel
capacitor group to depress a wave deformation in the system.
2.Technical Parameters
1).Rated Primary Voltage: 6kV up to 35kV
2).Rated Secondary Voltage: 0.4kV
3).Rated Capacity: 3kVA up to 2500kVA
4).Rated Short-time P. F. Withstand Voltage (r.m.s.) (kV): 20, 25,
35, 50, 70
5).Rated Lightning Impulse Withstand Voltage (Peak) (kV): 60, 75,
125, 170
6).Phase No.: single phase or three phases
7).The Highest Temperature Rise of Windings: 100K
8).Insulation Class: F
9).Cooling Mode: AN or FN
10).Enclosure Protection: IP00, IP20 or custom specified
11).Connection Symbol: Yyn0, Dyn11or II0 or custom specified
12).HV Tapping Range (%): ±5 or ±2×2.5
3. Main Features
1).Low loss, low noise, high operation efficiency
2).High ability of protection against short circuit
3).High mechanical strength
4).Pre-galvanized steel frame, flame-resistant, against corrosion
5).With outstanding fire-proof capability: the epoxy resin is
difficult to flame and self-extinguished. So it won’t lead to the
second disasters, such as an explosion.
6).Cast epoxy resin with high dielectric strength 18~22kV/mm in
vacuum process
7).Superior in environmental performance: the epoxy resin is very
stable, moisture-proof and dust-proof. It enables dry-type power
transformers to run with high reliability under abominable
environment.
8) With theimpeccable temperature control and indicating system,
dry-type power transformers can be maintenance free. And this
offers a great reduction of operation cost.
9).With small volume, light and convenient for installation and
alignment
10).No need of a separated room
4. Materials
1).Insulation Material: epoxy resin
2).Winding Material: Aluminum wire or high quality enameled copper
wire (foil winding is available for power transformer)
3).Core: core lamination, low loss, cold rolled grain oriented
silicon steel
4.This products is especially suitable to be mounted in the movable
or firm switch cabinet, whose width is 650-1200mm. SC10-6(10) (IV)
is small,fire-proof and wet-proof.
5.The highest temperature rise of the products’ windings is 100K,
their insulation class is F class, and their cooling mode is AN.
Application
SC(B) Series DRY EPOXY RESIN DISTRIBUTION POWER TRANSFORMER is
widely applied in hotels, high buildings, business centers,
residence community, gymnasium, Petrochemical plant, airport,
harbor, metro, mine, drillic.
Technical data
| Type | Rated capacity (KVA) | Connection groupgrade | Voltagecombination(KV) | Noloadloss (W) | loadloss(W) DyYy | No-load current(%) | Short-circuit resistance(%) |
| HighvoltageTappingrang | eLowvoltage |
| SC12-30 | 30 | YynO . Dyn11 | 10 6.3 6 | 土5% +2x2.5% +x2.5% | 0.4 | 150 | 710 | 2.3 | 4.0 |
| SC12-50 | 50 | 215 | 1000 | 2.2 |
| SC12-80 | 80 | 295 | 1380 | 1.7 |
| SC12-100 | 100 | 320 | 1570 | 1.7 |
| SC12-125 | 125 | 375 | 1850 | 1.5 |
| SC(B)12-160 | 160 | 430 | 2130 | 1.5 |
| SC(B)12-200 | 200 | 495 | 2530 | 1.3 |
| SC(B)12-250 | 250 | 575 | 2760 | 1.3 |
| SC(B)12-315 | 315 | 705 | 3470 | 1.1 |
| SC(B)12--400 | 400 | 785 | 3990 | 1.1 |
| SC(B)12-500 | 500 | 930 | 4880 | 1.1 |
| SC(B)12-630 | 630 | 1070 | 5880 | 0.9 |
| SC(B)12-630 | 630 | 1040 | 5960 | 0.9 | |
| SC(B)12-800 | 800 | 1215 | 6960 | 0.9 |
| SC(B)12-1000 | 1000 | 1415 | 8130 | 0.9 |
| SC(B)12-1250 | 1250 | 1670 | 9690 | 0.9 |
| SC(B)12-1600 | 1600 | 1960 | 11730 | 0.9 |
| SC(B)12-2000 | 2000 | 2440 | 14450 | 0.7 |
| SC(B)12-2500 | 2500 | 2880 | 17170 | 0.7 |
Product details
Points to note
1.working condition
* 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
2.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)
Qualification Centre
All products of the company have passed the national type test like
CCC, CQC , CTQC and other
national mandatory product certification, and has a perfect
quality, occupational health and
environmental management system certification system. Our products
have passed ISO9001, 2000
and other international quality system certification.
SCOPE of application
None of the dry-type transformers we see today are installed in a
separate, tightly enclosed room, as in
the oil-immersed type, but only in a relatively dry and clean room.
In addition to this, it is also very convenient
to transport or carry, no matter what kind of transport vehicles,
trains, cars or other non-motor vehicles can be,
but it is best to keep the car dry, clean and the product itself in
good packaging. Practice has proved that really
good products will always be more and more marketable. As dry-type
transformers have very good fire-proof
performance and are easy to install and maintain, they are also
used more and more widely Especially in the
modern commercial downtown, residential areas, hospitals, airports,
stations, subways, theaters, schools,
public places and other places with high requirements on fire
protection.
