H59 Type 20/0.4kv Padmount Oil Transformers
Distribution transformers 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) Voltages. 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.
Description
H59 type 20/0.4kv Padmount oil Transformers
Advantage
1.Dielectric Strength
Our transformers guarantee dielectric strength to withstand impulse voltage thanks to high-technology design which ensures low capacitance between winding and the ground and proper coordination of insulating material and solves creepage problem. |
2.Thermal Capability
Heat generated from coils which form electric circuit inside the transformer and heat from iron cores form magnetic circuit and is transmitted to insulating oil. Heat transmitted to insulating oil radiates to the air through the cooler. Cooling effect is very important as it is directly linked to insulation life and the capacity of the transformer. Our transformers lay emphasis on improving cooling performance and regulating temperature of the hottest spots by using an effective cooling system |
3.Mechanical Strength
| Reliability of transformers manufactured by us is excellent because of winding and tank design which distributes mechanical force evenly in case of short circuit and supports short-circuit strength effectively. |
Oil immersed Power Distribution transformer
Technical parameter
Description | Unit | |
Type | NA | H59 |
Catalog No. | NA | 250kVA/15-0.4kV |
Insulation Type | NA | Oil |
Cooling Method | NA | ONAN |
Coil Configuration | NA | 2 Winding |
Rating | kVA | 250 |
Vector Group | NA | Dyn11,Yyn0 |
Tapping Range | % | ±2×2.5 |
Primary Voltage | kV | 15 |
Secondary Voltage | V | 400/380 |
No-load loss | kW | 0.4 |
Load-loss(75℃) | kW | 3.35 |
Impedance | % | 5.5 |
Short circuit current | % | 1.2 |
Primary Insulation Level | kV | LI95 AC38 |
Secondary Insulation Level | kV | AC10 |
Temperature rise | ||
Oil | ℃ | 60℃ |
| Windings | ℃ | 65℃ |
WORKSHOP
CERTIFICATE
EXHIBITION
COMPANY OVERVIEW
FAQ
Q5 : Is OEM/ODM available?
A: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.
Q6 : You are manufacturer or trading company?
A: We are factory, As a 100% professional manufacturer with 20 year's manufacturer experience, we could produce products according to customers' requirements and we could also control the quality of products 100%.
Q7 : Can the price be negotiated?
A: Yes, the price is negotiable. It can be changed according to your quantity or package
Q8 : How about inspection?
A: We have the whole inspection system from raw material to end products include temperature rise test,salt spraying test conductor type test,mechanical life test.
Q9 : What is payment terms?
A: T.T, Paypal,Western Union,Alibaba trade assurance and L/C is acceptable. 30% T/T in advance ,70% balance before shipment.
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Welcome to inquiry
Contact information:
Jiyuan Fengyuan Electrical Equipment Co., Ltd
Sales Department
Contact person:Mr Charles Du
E-mail:fengyuan800@outlook.com
Mobile:+8618639199897(Available for whatsapp,wechat,skype)
Add:Huling industrial zone,jiyuancity,henan province,China
TEL:+86-0391-2180800
FAX:+86-0391-2180818
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