Product Specifications
| Prod Model: |
SC(B) |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Transformer: |
Dry-Type Distribution Power Transformers |
| Technology: |
Vacuum Casting |
| Isulation Material: |
Epoxy Resin |
| Certificate: |
ISO 9001:2000 |
| Used Place: |
Indoor |
| Color: |
Red |
| Type: |
Transformer |
| Quality Warranty: |
18 Months |
| Phase: |
Three |
| Application: |
Instrument |
| Coil: |
Core-type Transformer |
| Winding Type: |
Two-winding Transformer |
| Cooling Method: |
Dry-type Transformer |
Product Description
Product Name:Dry-type Power Transformers & Series Reactors
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
I) For Power Transformer:
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
Ii) For Series Reactor
1).System Rated Voltage (kV):3kV up to 35kV
2).Rated Capacity:Up to 1200 kVar
3).Rated Current:Up to 4000A
4).Rated Voltage For Capacitor (kV):6.6√3, 7.2√3, 11√3, 12√3
5).Rated Frequency:50Hz (60Hz on request)
6).Installation:Indoor or outdoor
7).Series Reactor Number for Each Phase:1
8).Insulation Class:F
* Except for the technical parameters list above, we can design as per clients' requirements.
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 the impeccable 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
5.Types of Our Reactors:
1).Dry-type Air Core Reactors, including:Dry-type Air Core Series Reactors, Dry-type Air Core Current Limiting Reactors and Dry-type Air Core Shunt Reactors.
2).Core-type Reactors, including:Core-type Series Reactors, Core-type Start-up Reactors, Core-type Shunt Reactors, Arc Suppression Coils, Core-type Earthing Transformer and Filter Reactors and so on.
6.Manufacturing Standard
1) Power transformer:IEC60076-11:2004, GB1094.11-2007, GB/T10228-2008
2) Series reactor:IEC60076-6:2007, GB/T 1094.6-201
7.Minimum Oder:1 unit, delivery time:6 days
8.Production Capability:20,000 pieces per year.
9.Packing
Goods are packed in wooden cases, with foam inside for protection.And we have a team who is in charge of packing.The team consists of our experienced carpenters and skilful packing designers.These enable our packing reasonable.
Rated Voltage
(kV) | Rated Short-time Power Frequency Withstand Voltage
(r.m.s.)
(kV) | Rated Lightning Impulse Withstand Voltage (Peak)
(kV) |
| 20 | 50 | 125 |
Table 2
| Model | Rated Capacity
(kVA) | Voltage Combination | Connection Symbol* | No-load Loss
(W) | Load Loss
(W)
(120°C) | No-load Current
(%) | Impedance
(%) |
HV
(kV) | HV Tapping Range
(%) | LV
(kV) |
| SC10-30/20 | 30 | 20 | ±5
±2×2.5 | 0.4 | Yyn0
Dyn11 | 270 | 880 | 2.1 | 6 |
| SC10-50/20 | 50 | 340 | 1235 | 2.1 |
| SC10-80/20 | 80 | 470 | 1710 | 2.0 |
| SC10-100/20 | 100 | 540 | 2000 | 2.0 |
| SC10-125/20 | 125 | 600 | 2160 | 1.8 |
As a national Hi-New-Tech enterprise, Guangdong Sihui Instrument Transformer Works Co., Ltd. is professional in designing, manufacturing and selling instrument transformers, dry-type power transformers and insulating articles etc. Our products sell well in more than 20 provinces, cities and autonomous regions of China as well as Europe, America, Russia and Southeast Asia and the like. Plateau-type instrument transformers have been applied in Jiuquan Satellite Shoot Centre Power Supply System, which has contributed to the successful launching for Spaceship Shenzhou V, Shenzhou VI and Shenzhou VII.
"Instrument Transformer" and "Dry-type Power Transformer" with Sihu Brand have been awarded the title of "Guangdong Provincial Top Brand", and Sihu trademark has been authorized to be Guangdong Provincial Famous Trademark.
Provincial Enterprise Technology Centre and Guangdong Provincial High-Voltage and High-Capacity Sensors Engineering Technology Research and Development Centre have been established by our company and affirmed. Since 2003, we have developed new technologies and new products more than 80 and have gained decades of national patents, of which, 4 invention patents and 17 key technical products with self brand. What' s more, we have gained 28 national honors such as China Outstanding Private Science & Technology Enterprise Invention Prize and Contribution Prize etc, and 38 provincial honors such as Guangdong Provincial Self Innovation Model Enterprise etc in 2009.
Our company took the lead in passing ISO 9001/ISO 14001/OHSAS 18001 Quality, Environmental and Occupational Health and Safety Management Systems certification, Russia GOST certification, China Environmental Symbol Products and Guangdong Provincial Energy Saving Symbol Products in the same industry. Top brand strategy and self-brand export strategy have been carried out actively to be geared to international standards and to be advanced. Our technological economic index is top or advanced level in the same industry of China, which contributes to local economy.
