China Dry Type Multi-Function General Transformer

General: H grade OVDT series SG (B) 10 open wide the ventilation type dry type transformer of our corporation research
nd development chooses H and Cs' such as Nomes, Cequin and Tufauin etc. which produced by DUPONT andQUIN-T corporation who tests the attestation by American ULinsurance, 180ºC - 220ºC insulation system who
passes optimization design possesses extinguishes and hinders to burn and hard burns even to the extent burn
and the merit of safe capacity.
At the same time, having used at present advanced VIP's vacuum impregnation technology, spool whole soaks
with ET-90 H grade modified heat-resisting not saturation polyester resin hinder to burn, so the paint
membrance is even, bright, strong adhesive force, not crack, small part discharge and high whole mechanical
strength and insulation ability, it is suitable in the environment of moist, salt and fog etc. Heavily degree pollutes,
endure waiting capability is excellent.
According to the SG (B) series OVDT products with its advanced performance standards and reliable safety
such as low loss and noise, and small part discharge etc. It is widely used in the load center who required high
fireproof safety and environmental protection, such as tour sight spot, commercial affairs center, shopping
center, resident area, high-rise, airport, subway, hospital and wharf etc.
Feature:
1. Environmental protection:
High quality H grade insulation material is used the product, there is no emission of hazardous gases under
high temperature.
Owing to the opening winding, it is convenient to take copper back for recycling after the service life.
2. Reliable insulation system:
NOMEX paper and ET-90 series H grade resin is chosen as basic insulation system, optimized design makes
insulation system 180 degrees centigrade - 220 degrees centigrade, which is safe, steady and reliable under
high temperature.
3. Advanced processing technology:
Adopting VPI technology and curing process under the high temperature, the lacquer film is bright and even, no
cracking, the partial discharge is less than 5PC, with low noise.
4. Overload capacity:
H grade Nomex paper is used for insulation of winding in opening structure. Its dissipation of heat is faster and
temperature rise is even, which shows higher overload capability.
5. Stronger withstanding short-circuit capability:
VPI process is carried out for H. V. &L. V. Coils and pre-pressing device such as disc spring and silicon
rubber is put on the end of coils to strengthen the mechanical strength for both coils and product, which
improves its withstanding short-circuit capability.
6. Weatherproof:
The whole product is coated with H grade insulation lacquer twice. Lacquer film has the good adhesion,
mechanical strength and insulation performance without cracking. Therefore, it is weatherproof such as
moisture, fog and dust, particularly in serious pollution.

Technical data:
1. Standard:
Gb6450-1986 Dry Type Power Transformer
GB/T 10228-1997 Dry Type Power Transformer Technology Data and Requirement
GB4208-1993 Shell Protection Grade IP Code
JB/T10088-1999 6-22 kV Transformer Noise Grade
JB/T 56009-1998 Dry Type Power Transformer Product Quality Grade
2. Capacity: 30 - 2500 (kVA)
3. Voltage Grade: 11, 10, 6.3/0.4 (kV)
4. Tapping Range: ±5%, ±2x2.5%
5. Frequency: 50Hz, 60Hz
6. Number of phases: three phase
7. Connection Symbol: Y yn0, Dyn11
8. Relative Humidity: 90%
9. Make Cool Type: AN/AF
10. Insulation Grade: H grade
11. Insulation Level: LI75AC35
Technical data:

Rated capacity
(kVA) H.V.
(kV) H.V. tapping range(%) L.V.
(kV) Vector groupNo-load current
(%)
Impedance
Voltage
(%)No-load
loss
(w)Load loss(w)
(145 °C)Weight
(kg)
Track gauge
(mm) 100 6
6.3
10
11
10.3
11 +/-
5%
+/-
2x2.5%
or others 0.4 Y,yn0
D,yn11 1.1 4 408 2165 550 400*400 120 1.0 480 2590 620 550*550 160 0.9 560 3100 725 200 0.9 655 3975 825 250 0.9 160 4675 950 315 0.75 880 56101140 400 0.75 1040 6630 1320 500 0.6 1200 79451700 660*660 630 0.6 1400 9265 2000 630 0.8 6 1345 9775 1700 800 0.8 1695 11560 2025 820*820 1000 0.8 1985 13345 2375 1250 0.8 2385 15640 2733 1600 0.65 2735 18105 10202000 0.65 3320 21250 3830 1070*1070 2500 0.65 4000 24735 4450

Ordering Notes:
1. Type
2. Quantity
3. No-load voltage ratio
4. Rated capacity
5. Short-circuit impedance
6. Vector group
7. Tapping range
8. Cooling mode
9. Enclosure protection class
10. Service condition
Our sales team
Our Services

1.

Pre sale service

a.

make technical solution

b.

send quotation, technical data sheet and drawing

c.

prepare power transmission plan, testing plan,and shipment plan

2.

In sale service

a.

supervise the manufacturing schedule totally in accordance with the plan

b.

send photos to customer during every manufacturing process(hold point)

c.

inform the customer one week before testinng.

3.

After sale service

a.

installation and commissioning, training the workers

b.

quick response within 12 hours any time

c.

provide 12 months gurantee period normally.

FAQ

1. Q:

What is your delivery time ?

A:

Depend on the type of transformer.

2. Q:

What is your payment term?

A:

30% advance by T/T , 70% before delivery by T/T or L/C or we can discuss about it.

3. Q:

What kind of starndard you follow?

A:

IEC, ANSI, CSA, GB, etc

4. Q:

What kind of supporting documentation you can provide normally

A:

Quotation,outline drawing,manufacturing plan, quality control plan
testing plan, financial report, type test report(KEMA, CESI),reference list,etc

5. Q:

What is your normal wanrranty period?

A:

12 months after transformer operation.

6. Q:

Can u do installation and commissioningin user's site?

A:

Yes, we can send our installation team to user's country for service.

7. Q:

Do you have any experience in this kind of transformer?

A:

Yes, we can provide reference list for check.

8. Q:

Are you manufacturer or trading company?

A:

Manufacturer with own import & export company.

Our advantages:

Quality Assurance

--From the very beginning, VILLE ensures quality in every step to achieve the best quality.

Experience Sharing

--With more than 30 years' experience in power industry, VILLE brings you an optimized solution.

Global Service

--Wherever you are, VILLE global network will support and provide you with value.

Quick Response

--In response to your needs without delay, VILLE knows the value of your time.

Thanks for choosing VILLE as your reliable partner and
please trust both of us will create a brilliant future!