Product Description
The 24kV three-phase oil-immersed transformer applies new type insulation structure and improves the ability of short-circuit resistance. The iron core is made of high-quality cold-rolled silicon-steel plate. High-voltage winding group is made of high quality copper wires and it adopts multilayer cylindrical structure. All fasteners have been processed with special treatment to prevent them from loosening.
The use of the environment
Device types: outdoor type
Normal environment conditions of use: the elevation not more than 1000 m
Environmental highest temperature + 40°C, minimum-25°C
The special environment conditions of use: elevation of more than 1000 m
Environmental highest temperature + 40°C, minimum-45°C. (when you order details)
Mounting ambicnt: no corrosive gas, no obvious dirt environment
Carries out the standard
ISO 1461: Hot dip galvanized coatings on fabricated iron and steel articles –Specifications and test methods
IEC 60076: Power transformers.
IEC 60044: Instrument transformers.
IEC 60296: Specification for unused mineral insulating oil for transformers and switchgear.
IEC 60354: Loading guide for oil – immersed power transformers.
IEC 60214: Tap-changers - Part 1: Performance requirements and test methods,
Part 2: Application guide.
IEC 60512: Connectors for electronic equipment.
IEC 60137 Insulated Bushings for Alternating Voltages Above 1 kV
Performance characteristics
Low loss and noisy
Compared with normal oil immersed power transformer has no oil storage box and adopts the corrugations on the oil tank as its heat-radiation parts
Oil tank is made by fine cold-rolled steel on an exclusive production-line
Corrugations can expand or contract according to the change of oil volume
Thus the inner space of transformer can be isolated from the air which can reduce the aging speed of oil and prevent the insulation materials from damping
Oil-immersed transformer possesses a reliable operation and is free from maintenance
Tank
1. Continuing12hours under 20Kpa air pressure, it is no leakage and permanent distortion.
2. Each transformer shall be enclosed in a suitable stiffened welded steel tank of 3 mm thickness minimum
3. The construction employs wieldable steel of an approved grade and shall withstand an internal pressure of 30KN/㎡ without permanent deformation
4. The transformer tank is vacuum-proof and suitable for outdoor installation.
5. Hermetically sealed transformers with fins.
The tank will be equipped with standard accessories as follows:
-Oil drain valve fitted at the lowest point of the tank at one of the narrow sides,with oil filling facility.
-Oil filter valve located near to the top of the tank.
-2 earthing stainless steel M10 studs with nut and washer.
-Suitable no of lifting lugs.
-Suitable no of pulling lugs.
-1 thermometer pocket.
-Rating plate and connection diagram.
|
Capacity |
Voltage |
Vector |
No-load loss (W) |
Load loss (W) |
Impedance voltage (%) |
No-load |
Gross |
Dimension |
||
|
High voltage (KV) |
High voltage tapping range |
Low voltage (KV) |
(75°C) |
L*W*H (mm) |
||||||
|
30 |
20kV |
±5%, ±2×2.5% |
0.4 |
Yyn0 Dyn11 |
90 |
630 |
5.5 |
1.7 |
500 |
700*650*900 |
|
50 |
120 |
910 |
1.9 |
600 |
730*690*950 |
|||||
|
80 |
170 |
1300 |
1.7 |
700 |
770*720*1000 |
|||||
|
100 |
190 |
1570 |
1.5 |
750 |
820*715*1030 |
|||||
|
125 |
230 |
1880 |
1.4 |
820 |
1005*635*1045 |
|||||
|
160 |
270 |
2300 |
1.3 |
855 |
1080*690*1095 |
|||||
|
200 |
320 |
2720 |
1.2 |
1050 |
1230*815*1110 |
|||||
|
250 |
380 |
3180 |
1.1 |
1090 |
1260*825*1160 |
|||||
|
315 |
460 |
3810 |
1 |
1280 |
1270*830*1205 |
|||||
|
400 |
540 |
4500 |
0.9 |
1455 |
1385*895*1260 |
|||||
|
500 |
650 |
5380 |
0.9 |
1850 |
1435*945*1300 |
|||||
|
630 |
770 |
6480 |
6 |
0.8 |
2135 |
1560*1015*1335 |
||||
|
800 |
930 |
7840 |
0.7 |
2550 |
1625*1060*1400 |
|||||
|
1000 |
1090 |
10760 |
0.6 |
2700 |
1800*1200*1700 |
|||||
|
1250 |
129 |
12540 |
0.5 |
3000 |
1820*1265*1580 |
|||||
|
1600 |
1560 |
15150 |
0.5 |
3400 |
1860*1290*1730 |
|||||
|
2000 |
1850 |
18180 |
0.5 |
4050 |
1950*1290*1900 |
|||||
|
2500 |
2220 |
21100 |
0.5 |
5500 |
2190*2450*2500 |
|||||
Company Information
Currently our company mainly produces HV/LV power distribution cabinets, pre-fabricated substations, power distribution transformers, HV/LV switches and other products.
The products cover the national market of China. And the products are exported to Central Asia, Africa, Southeast Asia, the Middle East, South America and other countries and regions as well.
Based on its complete marketing and service networks, Zhejiang ROOQ Electric Co., Ltd will further expand into the domestic and foreign markets. The company implements a "7*24 service mechanism" and an after-service policy with life-long warranty to actively provide its customers with timely, warm and total services, enhance the product utilization value and premium services and free its customers from any after-sales concerns.
