33/11kv 2.5mA Oil Immersed Power Distribution Transformer

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PRODUCTS DETAILS

Basic Info.

Model NO.
S9
Usage
Power Transformer
Frequency Characteristics
Power Frequency
Shape of Core
Ring
Brand
Rockwell
Color
Gray, Green or Customized
Transport Package
Wooden Packing
Specification
IEC/ANSI/IEEE
Trademark
Rockwell
Origin
China
HS Code
8504330000
Production Capacity
20000

Product Description

Medium Voltage Three Phase Oil Immersed Power Transformer
Distribution Transformer

Description

Distribution transformer oil-immersed with power rating from 25 to 2500 kVA and Voltage 6-36/0,4 (0.23)kV. In 50/60 Hz power transmission and distribution system for power supply and lighting in industrial and agricultural field. Distribution transformers are produced with nominal Voltage in primary winding 6 up to 36 kV. Nominal Voltage in secondary winding is 0,4 or 0,23 kV. Scheme and connection group of windings U/Un-0 or D/Un-11, etc.

On the customer demand it is possible to make transformers with different connection of the Voltage s and other construction solution. Regulating the Voltage is made as a result of moving the switch, by the transformer detached from the net both high (HV) and low (LV) Voltage s.
The Voltage is being regulated on the side of HV for ±2x2,5% value from nominal value. Exterior introductions HV and LV are removable and passers-by are made from china insulators. At great current 1000 A and more on the hard core current are contact clamps screwed properly with the spatula which connecting the track or the cable attachment assures. The expandability of oil assures appropriate works of the transformer at different weather conditions and fluctuations of the temperature. The dehumidifier is installed to provide dry air in transformer. For measuring the temperature of upper layers of oil on the casing a thermometer is installed. Transformers with power rating from 400 to 2500 kVA are occupied with wells to install in base.


Features

1. Energy saved :
Compared with old type S7, no-load loss decreases 10.25% averagely and on-load current decreases 37.9%, which means 18.39% operation cost is reduced.
2. Long-term reliable service life:
Fully enclosed transformer tank and rim shall be bolted together or welded firmly. Isolation between oil and air keeps insulation away from moisture, which lowers insulation aging and improves service life.
3. Free from untanking:
Free from untanking before operation, so its cost is saved.
4. Free from maintenance
5. Low noise:
Impacted structure in design, new material and new technology adopted and low noise.
6. Small size and artistic appearance:
Owing to the corrugated plate used for radiation, oil volume is changed by adjustment and compensation through expansion and shrinkage of corrugated plate when the temperature of oil is changed. Corrugated tank is small size in good looking.

Transformer order information

a. Rated capacity
b. High and low rated voltage
c. Vector group
d. Impedance voltage
e. Tapping range
f.  Frequency
g. Other(special)require


Main Technical Datas
 

Rated Capacity (KVA)
Voltage combination Connection
Symbol
load loss (W) No-load loss(w) 75 No-load
Current (%)
Shirt-circuit Impedance
(%)
HV (kv) LV (kv)
30 6
6.3
10
10.5
11
0.4 Yyn0
Dyn11
100 600 2.1 4
50 130 870 2
63 150 1040 1.9
80 180 1250 1.8
100 200 1500 1.6
125 240 1800 1.5
160 270 2200 1.4
200 330 2600 1.3
250 400 3050 1.2
315 480 3650 1.1
400 570 4300 1
500 680 5100 1
630 810 6200 0.9 4.5
800 980 7500 0.8
1000 1150 10300 0.7
1250 1360 12000 0.6
1600 1640 14500 0.6
2000 1960 18000 0.5
Note: we can design and manufacture special transformer as customers' requirements.


33/11kv 2.5mA Oil Immersed Power Distribution Transformer


33/11kv 2.5mA Oil Immersed Power Distribution Transformer


33/11kv 2.5mA Oil Immersed Power Distribution Transformer
33/11kv 2.5mA Oil Immersed Power Distribution Transformer 33/11kv 2.5mA Oil Immersed Power Distribution Transformer


33/11kv 2.5mA Oil Immersed Power Distribution Transformer
33/11kv 2.5mA Oil Immersed Power Distribution Transformer

33/11kv 2.5mA Oil Immersed Power Distribution Transformer
33/11kv 2.5mA Oil Immersed Power Distribution Transformer
33/11kv 2.5mA Oil Immersed Power Distribution Transformer


 

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