| Customization: | Available |
|---|---|
| Application: | Power, Instrument |
| Phase: | Three |
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Qinghao dry type distribution transformer includes cast resin insulation, amorphous alloy and on-load tap changer type, which provides general security for environment with its non-flammable, self-extinguished, toxic gas-free structure and low noise level.
SCB series epoxy resin cast dry transformer is cast under vacuum with thin insulating bands automatically. The core is made of high-permeable grain-orientated silicon sheet and cast with imported epoxy resin. It is humidity proof and suitable for operating in humid and extremely polluted environments. They are ideal transformers to work at -40°C and more than 95% humidity level. Our dry type distribution transformer primary voltage range includes 6,6.3,10.5,11,20,22,24,33, 35,38.5kV and max rating can up to be 3150kVA, which can be manufactured according to customer requirements.
Please check below quick links for other product types.
Main Characteristics:
1. The coil is reinforced with glass fiber and cast under vacuum with filler epoxy resin. It has good mechanical properties, is free of crack and inner bubble and has low local discharge, high reliability, and long service life.
2.The high and low voltage systems are cast under vacuum; thus the coil will not absorb moisture; the clamps of core are subjected to corrosion-resistant treatment and it may run under high temperature of other serious environments.
3. Flame-retardant, explosion proof and no environmental contamination. The insulating materials in the coil such as glass fiber are self-extinguishing and they will not case fire by the arc resulted from short-circuit. The resin will not generate toxic or harmful gas under high temperature.
4. Gas duct is embedded inside it to enhance the radiation power and over-load capacity.
5. Low-loss and low-noise. The core is lapped with 45°full-miter and the step-type lamination effectively improves distribution of magnetic flux at core corners, and greatly reduces the no-load loss and the noise level.
6. It highly withstands short-circuit and lightning impact.
7. Small in volume, light in weight, safe in running and free of maintenance.
8. As per user's requirements the transformer may be provided with casing and blower fan.
Advantages:
1. High mechanical strength and strong short circuit resistance ability.
2. Good moisture resistance and run with 90% humidity.
3. Advanced structure, small dimension, light weight and low partial discharge.
4. High insulation level and equal electric field distribution.
5. Strong heat dissipation, run with 150% rated load under forced air cooling.
6. Fireproof, explosion-proof, pollution-free and low-noise and able to be directly installed in the load center.
7. Easy installation, operation and maintenance.
Applications
Mainly used for infrastructure, public transportation, construction and housing, industry, information technology and new energy power transmission and distribution.
Service environment:
1. Ambient temperature: Maximum +45ºC, Minimum -30ºC
2. Altitude: less than 1000 meters.
3. Max. air relative humidity90% (±25ºC).
4. Max. Ground ramp degree 3°.
5. The earthquake: the horizontal acceleration≤0.3m/s2 ,the vertical acceleration≤0.15m/s2.
6. The installation site shall be free from explosion danger, fire, filthy material, chemical corrosion and violent vibration.
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)
| 20KV Series Resin Insulated Dry Type Distribution Transformer Performance Parameters | ||||||||||||||||
| High Voltage:20(22,24)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:LI125 AC55/AC3 |
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| Rated power (KVA) |
Short-Circuit Impedance (%) |
SC(B)14 (W) | SC(B)13 (W) | SC(B)11 (W) | No-Load Current (%) |
Sound pressure dB(A) |
Weight (kg) |
Inner Dimension(mm) | Overall Dimension(mm) | |||||||
| No-Load Loss | On-Load Loss120ºC | No-Load Loss | On-Load Loss120ºC | No-Load Loss | On-Load Loss120ºC | L | W | H | L | W | H | |||||
| 50 | 6 | 275 | 1100 | 275 | 1230 | 340 | 1230 | 2.0 | 44 | 530 | 1280 | 600 | 1040 | 1700 | 1350 | 2200 |
| 100 | 435 | 1790 | 435 | 1990 | 540 | 1990 | 1.8 | 44 | 680 | 1350 | 600 | 1320 | 1700 | 1350 | 2200 | |
| 160 | 540 | 2220 | 540 | 2470 | 670 | 2470 | 1.5 | 45 | 980 | 1380 | 600 | 1330 | 1700 | 1350 | 2200 | |
| 200 | 585 | 2650 | 585 | 2940 | 730 | 2940 | 1.5 | 46 | 1240 | 1460 | 720 | 1350 | 1900 | 1350 | 2200 | |
| 250 | 675 | 3080 | 675 | 3420 | 810 | 3420 | 1.3 | 46 | 1480 | 1490 | 720 | 1430 | 1900 | 1350 | 2200 | |
| 315 | 780 | 3670 | 780 | 4080 | 970 | 4080 | 1.3 | 47 | 1550 | 1510 | 720 | 1470 | 2100 | 1400 | 2200 | |
| 400 | 920 | 4350 | 920 | 4840 | 1150 | 4840 | 1.1 | 48 | 1730 | 1550 | 720 | 1500 | 2100 | 1400 | 2200 | |
| 500 | 1080 | 5210 | 1080 | 5790 | 1350 | 5790 | 1.1 | 48 | 1980 | 1580 | 830 | 1550 | 2100 | 1400 | 2200 | |
| 630 | 1230 | 6150 | 1230 | 6840 | 1530 | 6840 | 1.0 | 49 | 2280 | 1600 | 830 | 1600 | 2100 | 1500 | 2200 | |
| 800 | 1400 | 7430 | 1400 | 8260 | 1750 | 8260 | 1.0 | 50 | 3180 | 1730 | 830 | 1760 | 2300 | 1500 | 2200 | |
| 1000 | 1650 | 8800 | 1650 | 9780 | 2070 | 9780 | 0.85 | 50 | 3580 | 1800 | 830 | 1780 | 2300 | 1500 | 2200 | |
| 1250 | 1900 | 10400 | 1900 | 11500 | 2380 | 11500 | 0.85 | 52 | 3680 | 1820 | 900 | 1850 | 2400 | 1500 | 2200 | |
| 1600 | 2230 | 12400 | 2230 | 13800 | 2790 | 13800 | 0.85 | 52 | 4680 | 1980 | 920 | 2040 | 2500 | 1600 | 2200 | |
| 2000 | 8 | 2590 | 16010 | 2590 | 17800 | 3240 | 17800 | 0.7 | 53 | 5340 | 2200 | 960 | 2080 | 2700 | 1600 | 2200 |
| 2500 | 3100 | 19060 | 3100 | 21200 | 3870 | 21200 | 0.7 | 53 | 6480 | 2330 | 990 | 2170 | 2800 | 1700 | 2200 | |
| 3150 | 3920 | 21040 | 3920 | 23400 | 4880 | 23400 | 0.6 | 55 | 7530 | 2360 | 1020 | 2250 | 2800 | 1700 | 2200 | |
| Note: The above parameters are only for designing and selecting reference, and the final parameters are subject to the actual product. | ||||||||||||||||
Qinghao Electric Co., Ltd. (Hereinafter referred to as Qinghao Electric) is a reliable and specialized power transmission and distribution equipment manufacturer located in Wenzhou City, Zhejiang Province. We are focusing on transformer, substation, switchgear and other power related products' R&D and manufacture from 2010. Our products mainly include oil immersed transformer, dry-type transformer, amorphous alloy transformer, prefabricated substation, pad mounted substation, solar photovoltaic & wind power step-up substation, high and low voltage switchgear.
With more than 20years develop and production efforts, our products are sold to many countries all over the world. Now our products' technical performance has reached the advanced level in power industry, and our company has become a leading professional power distribution manufacturer not only in China but also in the world. With the concept of "world-class transformers, smart solutions", Qinghao Electric is devoting to provide high-quality power for customers.
Let us cooperate with a brighter future!
Q: Are you a Manufacturer, factory or Trading company?
A: Yes, we are engaging over 20years in the research and development, production and operation of distribution equipment (transformer, switchgear, substation, etc.).
Q: What's your warranty terms?
A: We offer 24 months warranty time.
Q: How long is the production time?
A: 25 to 45 days or depending on order requirements.
Q: What's your payment terms?
A: T/T, L/C or negotiation.
Q: How do you conduct quality control in your factory?
A: Qinghao transformers are manufactured in accordance with international standards and customer requirements with IEC, SGS, Intertek, CCC, CE and other international certifications. All transformers are 100% conducting routine test, type test and special test in accordance with IEC Standards and customer requests at the end of the manufacturing process to ensure every product is qualified.
Q: Do you have the products in stock?
A: Normally no, but we have raw material stock to shorten production lead time.
Q: How can I trust you?
A: Qinghao Electric has more than 20years manufacturing experience, and cooperated with many customers all over the world. We have many patent certificates, CE certificate, KEMA certificate, ISO9001, ISO14000 certificate. We are the audited supplier of TUV and Made-In-China.
Q: What should provide to make custom transformer?
A: Technical drawing and specification documents are the best, or you can list key parameters for designing.
Q: Could I have your catalog and price list?
A: Price may change based on material market. Welcome to contact for accurate price via Made-in-China or company official website.
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