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Application: | Power, Electronic, Instrument, Lighting, Rectifier, Audio |
Phase: | Three |
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Qinghao oil distribution transformer includes hermetically sealed, amorphous alloy, conservator type and on-load tap changer type, which is usually pole mounted or installed in distribution station for daily lighting and factory power whose LV output up to 0.4kV. Our distribution transformer rating is up to 2500kVA, and primary voltage up to 35kV. The corrugated tanks as thermal expansion and contraction component enable the transformer oil completely isolated with the atmosphere. Oil distribution transformer with primary voltage range of 6,10,10.5,11,20,22,24,33, 35,38.5kV can be manufactured according to customer requirements.
High efficiency, low loss, low noise, strong load resistance and long service life.
Main Characteristics:
1. Designed by patented technology and software with premium performance.
2. Core is made of high quality cold-rolled grain-oriented silicon steel sheet which produced in step-lap technology.
3. Winding is using high strength enameled wire or paper-insulated wire or copper belt, which offers uniform distribution of ampere-turns, reasonable insulation structure with high ability to withstand short-circuit.
4. Oil tank is corrugated type with high corrosion resistance. Tank surface pre-treatment liquid and coating powder adopts international top brands. The tank is degreasing, pickling, phosphorated, electrophoresis by automatic production lines, then power spray coating and heat-solidify.
5. The active part applies core free-hanging structure. The gasket is made of high-quality acrylate rubber which can inhibit ageing caused by sun and heat.
Advantages:
1. Low loss, low noise, low partial discharge, high reliability.
2. Safety with elegant appearance.
3. Convenient installation and simple maintenance.
4. Compact with small occupied area.
Applications
1. Building Infrastructure and Industrial: Airports, hospitals, factories, shopping malls, hotels, commercial and residential towers.
2. Utility: Generation, transmission, distribution substations, water and waste water treatment plants.
3. Oil and Gas: Oil and gas plants, petrochemical plants and refineries.
Service environment:
1. Ambient temperature: Maximum +40ºC, Minimum -40ºC
2. Altitude: less than 1000 meters.
3. Seismic level: less than 3m/s2 at horizontal direction and less than 1.5m/s2 at vertical direction.
4. Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)
Please check below quick links for other product types.
High Voltage:10(6,6.3,10.5,11)KV Connection Symbol:D,yn11 or Y,yn0 Rated Frequency:50Hz/60Hz Low Voltage:0.4(0.415,0.433)KV Tapping Range of HV:±2x2.5% Insulation Level:LI75 AC35/AC3 |
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Rated power (KVA) |
Short-Circuit Impedance(%) | S18 (W) | S13 (W) | S11 (W) | No-Load Current (%) |
Sound pressure dB(A) |
Weight (kg) |
Overall Dimension(mm) | ||||||||
No-Load Loss | On-Load Loss75ºC | No-Load Loss | On-Load Loss75ºC | No-Load Loss | On-Load Loss75ºC | L | W | H | ||||||||
Dyn11 | Yyn0 | Dyn11 | Yyn0 | Dyn11 | Yyn0 | |||||||||||
30 | 4.0 | 60 | 410 | 390 | 65 | 460 | 440 | 75 | 570 | 550 | 1.50 | 50 | 400 | 750 | 560 | 850 |
50 | 75 | 600 | 570 | 85 | 660 | 630 | 90 | 830 | 790 | 1.30 | 50 | 450 | 760 | 640 | 920 | |
63 | 80 | 710 | 680 | 90 | 790 | 760 | 100 | 990 | 950 | 1.20 | 50 | 500 | 770 | 670 | 930 | |
80 | 95 | 860 | 820 | 105 | 950 | 910 | 120 | 1190 | 1140 | 1.20 | 52 | 560 | 840 | 720 | 970 | |
100 | 110 | 1040 | 980 | 125 | 1150 | 1090 | 135 | 1440 | 1360 | 1.10 | 52 | 610 | 870 | 730 | 1020 | |
125 | 120 | 1240 | 1180 | 140 | 1370 | 1310 | 155 | 1720 | 1640 | 1.10 | 54 | 760 | 1040 | 810 | 1020 | |
160 | 145 | 1510 | 1440 | 165 | 1680 | 1600 | 180 | 2100 | 2000 | 1.00 | 54 | 790 | 1100 | 830 | 1070 | |
200 | 170 | 1790 | 1700 | 195 | 1990 | 1890 | 220 | 2480 | 2360 | 1.00 | 56 | 870 | 1190 | 880 | 1070 | |
250 | 210 | 2090 | 2000 | 240 | 2330 | 2220 | 265 | 2910 | 2770 | 0.90 | 56 | 1020 | 1270 | 890 | 1070 | |
315 | 245 | 2510 | 2390 | 280 | 2790 | 2660 | 310 | 3480 | 3320 | 0.90 | 58 | 1180 | 1330 | 940 | 1140 | |
400 | 300 | 2960 | 2810 | 335 | 3290 | 3130 | 375 | 4110 | 3910 | 0.80 | 58 | 1350 | 1410 | 940 | 1210 | |
500 | 350 | 3550 | 3370 | 390 | 3940 | 3750 | 440 | 4920 | 4680 | 0.80 | 60 | 1600 | 1500 | 1050 | 1350 | |
630 | 4.5 | 420 | 4060 | 465 | 4510 | 520 | 5640 | 0.60 | 60 | 2080 | 1600 | 1100 | 1440 | |||
800 | 510 | 4910 | 575 | 5460 | 640 | 6820 | 0.60 | 62 | 2460 | 1670 | 1140 | 1460 | ||||
1000 | 604 | 6740 | 680 | 7490 | 755 | 9360 | 0.60 | 62 | 2750 | 1700 | 1200 | 1490 | ||||
1250 | 710 | 7860 | 795 | 8730 | 885 | 10910 | 0.50 | 65 | 3180 | 1870 | 1250 | 1510 | ||||
1600 | 855 | 9490 | 960 | 10550 | 1065 | 13180 | 0.50 | 65 | 3730 | 1890 | 1290 | 1750 | ||||
2000 | 5.0 | 990 | 11980 | 1115 | 13310 | 1240 | 16640 | 0.40 | 65 | 4560 | 2100 | 1300 | 1800 | |||
2500 | 1165 | 12150 | 1310 | 13490 | 1455 | 19270 | 0.40 | 67 | 5670 | 2150 | 1390 | 1980 | ||||
Note: The above parameters are only for designing and selecting reference, and the final parameters are subject to the actual product. |
Qinghao Transformer is a reliable and specialized power transmission and distribution equipment manufacturer for over 20 years with a registered capital of USD8,000,000. Except for ISO9001, ISO14001, ISO45001 certificates, we are also TUV audited suppliers with AAA enterprise and AAA products honors. All products comply with GB and IEC related standards. With the concept of "World-class transformers, smart solutions", Qinghao Transformer is devoting to provide high-quality power for customers. Let us cooperate with a brighter future! |
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Core Product Portfolio for Power Transmission & Distribution Systems: 1. 10kV-110kV Oil-Immersed Power Transformers High-Efficiency Series: S9, S11, S13, S15 with on-load voltage regulation capability. Specialized Types: Explosion-proof transformers, mining-compliant transformers, anti-theft transformers, rectifier furnace transformers for harsh industrial applications. 2. Dry-Type Transformers Fire-Safe Models: SC(B)9(10), SG(B)10 series with H-class insulation, ideal for urban grid modernization and metro light rail power supply. 3. Amorphous Alloy Transformers Energy-Saving Technology: 70%+ no-load loss reduction, certified for rural power grid transformation projects. 4. Integrated Power Distribution Solutions Prefabricated Substations: Combined transformers & box-type substations for compact deployment. Switchgear Systems: High/low voltage switchgear cabinets, circuit breakers, cable branch boxes, metering unit, recloser for grid protection. |
Application Sectors *Energy Generation: Nuclear/thermal power plants, grid transmission networks. *Industrial Facilities: Metallurgy, petrochemical plants, mining operations (high-resilience power supply). *Transportation: Electrified railways, metro systems, urban light rail traction power. *Public Infrastructure: Urban/rural grid retrofits, smart city projects, commercial complexes. |
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