Product introduction
* This model is produced in accordance with Chinese national GB standards and the international IEC standards.
* It uses oil as the main insulation means of the transformer, and relies on oil as the cooling medium, such as oil-immersed natural cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation, etc.
* The main components: iron core, winding, fuel tank, oil pillow, breathing apparatus, explosion-proof tube (pressure release valve), radiator, insulating casing, tap switch, gas relay, thermometer, oil purifier, etc.
* Widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms and oil production platforms; especially suitable for use in flammable, explosive and other harsh environments.
Product features* This model is produced in accordance with Chinese national GB standards and the international IEC standards.
* It uses oil as the main insulation means of the transformer, and relies on oil as the cooling medium, such as oil-immersed natural cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation, etc.
* The main components: iron core, winding, fuel tank, oil pillow, breathing apparatus, explosion-proof tube (pressure release valve), radiator, insulating casing, tap switch, gas relay, thermometer, oil purifier, etc.
* Widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms and oil production platforms; especially suitable for use in flammable, explosive and other harsh environments.
Transformer Structure
33kv to 35kv Transformer Structure
| Rated Capacity (kVA) | H.V. winding (kV) | Tapping range of high voltage (%) | L.V. winding (kV) | Vector Group | No-Load Loss(W) | Load Loss (W) | No-load current (%) | Short-circuit impedance (%) |
| 50 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 | 33 | ±5% ±2x2.5% | 0.4 | Dyn11 Yyn0 | 130 185 215 225 270 320 385 465 545 665 785 920 1120 1350 1590 1890 | 1200/1140 2010/1910 2370/2260 2820/2680 3320/3160 3950/3760 4750/4530 5740/5470 6910/6580 7860 9400 11500 13900 16600 19700 23200 | 1.3 1.10 1.10 1.00 1.00 0.95 0.95 0.85 0.85 0.65 0.65 0.65 0.6 0.6 0.55 0.55 | 6.5 |
Company Introduction 
At present, the company's products mainly cover the oil immersed transformer below 35kV, dry type transformer;Medium voltage switchgear and low voltage switchgear below 40.5KV;Intelligent box type substation;Distribution box, cable and other electrical equipment;Existing technology research and development team of more than 50 people, 15 doctors, all from the domestic well-known electrical major graduates;The company's products have passed ISO, CE, CB, SGS, STL, CQC, CCC and other international authority certification, has been exported to more than 50 countries and regions, the main market in Southeast Asia, Africa, the Middle East, the Americas and other regions and countries.
HFY Certification
Our Services
We have established strict working procedures and standards in the development, production, sales and after-sales of electrical products, so as to provide customers with first-class products and the best service.
1. Our electrical engineer has more than 10 years of working experience
2.Our workshop workers are all skilled industrial workers who have received three months 'pre-job training
3. Our sales team has been extensively trained by management consultants to provide professional solutions for customers
4. Our technical team can provide customers with 24-hour technical support world wide
5. Our customer service team ensures that orders are delivered on time.
6.We strictly implement the ISO9001 quality standard
FAQ
Q1: Is OEM/ODM available?
A1: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.
Q2: What's your MOQ?
A2: One Set.
Q3: How is the delivery time?
A3: It depends your order quantity and it normally takes about 15-20 days.
Q4: How do you control the quality?
A4: We have QC team comply with TQM to ensure the quality. Each step is in compliance to the standards. At the same time, we will take photos and shoot video for you if you need.Every product will be fully assembled and carefully tested before packing and shipping.
Q5: How long is the warranty?
A5: Within one year from the sale date, if there are any accessory problems, you just provide the photos of damaged accessory, then we will provide free accessory. According to the number of products, we will provide easily damaged accessories for free. We also can provide technical support if you need.