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Product Name: Single Phase Dry Power Transformer 2kVA
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
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
6. Manufacturing Standard
1) Power transformer: IEC60076-11:2004, GB1094.11-2007, GB/T10228-2008
7. Technical Parameters for DC-6~35 power transformers please see Table 1~2
Table 1
|
Voltage Class (kV) |
Rated Short-time P.F. Withstand Voltage (r.m.s.) (kV) |
Rated Lightning Impulse Withstand Voltage (Peak) (kV) |
Remarks |
6 |
20 (or 25) |
60 |
Declare clearly the withstand voltage in the parenthesis if needed while ordering, otherwise the products of 20kV or 28kV withstand voltage will be supplied. |
10 |
35 |
75 |
|
20 |
50 |
125 |
|
35 |
70 |
170 |
Table 2
Rated Voltage (kV) |
Rated Capacity (kVA) |
Connection Symbol |
The Highest Temperature Rise of Windings (k) |
Insulation Class |
Cooling Mode
HV |
|
HV |
LV |
|||||
|
6 10 20 35 |
0.4 0.23 |
1.5~30 |
II0 |
100 |
Class F |
AN |
Notes: Detailed technical data and outline drawing are provided upon request.
All our 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 skilful carpenters and experienced packing designers. These enable our packing reasonable, safe and reliable.
I. Before Sale
a. Contact with clients nearly to know their requirements exactly.
b. Express the requirements from the clients to relevant departments in quickness and exactitude.
II. During Sale
a. Ensure that the products delivered are certified (confirming to the standards of China and IEC).
b. Ensure that marks, handle, package, storage and protection are in accordance with the requirements of ISO 9001/ISO 14001 standards.
c.Transport the products to specified destination as per the contract.
III. After Sale
Our after- sales service is available anytime.
a. Three guarantees will be carried out on the products delivered (18 months quality guarantee). That is refund, replacement and repair.
b. Fittings supply shall be in time.
c. Response for the financial loss brought from the uncertified or services.
d. Product sample is available.
e. Product customization is welcome. We have professional team to meet your requirements.
(GDSH)Guangdong Shui Instrument Transformer Works Co., Ltd. has been in the field of designing and manufacturing power transformers, instrument transformers and related components for more than 24 years. GDSH has two factories based in Sihui City near Guangzhou. Sihu Brand products have the full certificates as below:
·Russia GOST certification;
·China Environmental Symbol Products;
·Guangdong Provincial Energy Saving Symbol Products;
·Excellent conduct enterprise certification with AAAA-level standard; and
·Standardized safety production enterprise with second level
And GDSH pass ISO 9001:2000, ISO 9001/ISO 14001/OHSAS 18001 Quality Environmental and Occupational Health and Safety Management Systems certification.
Our production capability is:
Power transformers 20,000 pieces per year
Voltage transformers 80,000 pieces per year
Current transformers 100,000 pieces per year
Insulating articles 400,000 pieces per year
Quality control
We have more than 50 professional quality inspectors. There are at least 2 quality inspectors distributed at each workshop to make sure every parts of our product are qualified. What’s more, our Test workshop is always capable of stopping non-conforming products to be delivered.
There are 30-45 members in our R&D team
We have a policy of continuous improvement to its product lines.
And our substantial R & D capabilities are focused on quality and functional enhancements.
Our R&D team provides innovative products to the power grid and other electrical industries.
Our main export market is South Asia, North America, Europe and South America and so on.
Payment terms: 30% deposit in advance and 70% balance paid before delivery or 100% L/C at sight
Minimum order:
For high voltage products and power transformers: 1 piece;
For medium voltage products: 3 pieces;
For low voltage products and insulating articles: 10 pieces
Delivery time: 5~30 days after receive of order
Quotation Valid Date: 90 days
Transportation methods: By air or by sea, as requested
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