DRY 10/0.4kv 3 Phase Step Up Transformer
Dry transformers with high and low voltage windings are coated by a thin layer of epoxy resin. It has the advantages of flame retardant, self-extinguishing, moisture-proof, heat dissipation and so on. It can go deep into load centers, such as high-rise buildings, airports, wharfs, power plants, residential communities or complete sets of substations.
Description
DRY 10/0.4kv 3 phase step up transformer
Dry type transformer is widely used in local lighting, high-rise buildings, airports, terminals CNC machinery equipment and other places, simply said dry type transformer refers to the iron core and windings are not impregnated in insulating oil transformer. Cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). In natural air cooling, the transformer can run continuously for a long time under the rated capacity. When forced air cooling, the transformer output capacity can be increased by 50%. Suitable for intermittent overload operation, or emergency overload operation; Due to the large increase of load loss and impedance voltage during overload, it is in non-economic operation state, so it should not be kept in continuous overload operation for a long time.
three phase dry type electric transformer
1.Safe, fireproof, no pollution, it can be installed directly in the load center.
2.Free maintenance, easy to install, low total operating costs.
3.With good moisture resistance, it can work normally under the100% humidity. After it stopped operating, the outage without pre-drying can be put into operation again.
4.Low loss, low partial discharge, low noise, good heat dissipation capacity. Under the forced air cooling conditions, it can run at 150% rated load.
5.The equipped perfect humidity protection & control system can provide reliable
Function Characteristics:
1. Flame retardant, non-pollution, it can be installed directly in the load center.
2.Maintenance-free, easy to be installed, low operating costs.
3.The enclosure can be of Good moisture resistance, transformer can be put into operation without pre-drying under 100% humidity in the normal operation.
4.Low loss, light weight and small volume, low noise, good dissipation of heat, it can be 150% rated load operation under forced air cooling conditions.
5.Equipped with a complete temperature protection control system to provide reliable protection for the safe operation of
transformers.
6.High reliability. The results of checking for the products that has been put into operation show that the reliability index has reached the international advanced level.
Structural Characteristics:
Cast-foil Coil: Adopting the entire section of copper foil, together with the F-class turn insulation, low voltage winding is wound by the special low-voltage foil winding machine. The foil coil resolves such understanding problems as large short-circuit stress, uneven ampere turn, poor heat dissipation, existing the winding spiral angle as well as unsteady manual welding quality due to low voltage and large current coil winding products. At the same time, the winding end in our company is treated with resin potting, solidification to make shape, moisture-proof and anti-fouling, the lead copper platoon is automatically welded by argon arc welding.
Temperature Control Device: the transformer adopts BWDK series of signal thermometer. The temperature components, are embedded in the upper half of the low-voltage coil, can automatically detect and dynamically display the work humidity of phase coils and also have the functions of over-temperature alarm and trip.
No. | Conditions | Units | Parameter Values | |
1 | Rated Voltage | kV | 10 | |
2 | Highest Operating Voltage | kV | 12 | |
3 | System Neutral Point Earthing Mode | Unearthed | ||
4 | Rated Frequency | Hz | 50 | |
5 | Pollution Grade | d(Ⅲ) | ||
6 | System Short Circuit Current Level (High Voltage Side) | kA | 20 | |
7 | Ambient Temperature | Maximum Daily Temperature | ℃ | 40 |
Minimum Daily Temperature | -25 | |||
Maximum Daily Temperature Difference | K | 25 | ||
Average Temperature of the Hottest Month | ℃ | 30 | ||
Maximum Annual Average Temperature | 20 | |||
8 | Humidity | Average Daily Relative Humidity | % | ≤95 |
Average Monthly Relative Humidity | ≤90 | |||
9 | Altitude | m | ≤1000 | |
10 | Solar Radiation Intensity | W/cm2 | 0.1 | |
11 | Maximum Icing Thickness | mm | 20 | |
12 | Maximum average wind speed: keeping in good conditions for 10min at 10m from the ground level | m/s | 35 | |
13 | Earthquake Resistance | Horizontal Ground Acceleration | m/s2 | 2 |
Safety Coefficient of 3 Since Resonance Cycles | ≥1.67 | |||
14 | Installation Site | Indoor | ||
Note 1: Values about temperatures in the table must be adjusted accordingly if the lowest ambient temperature is above -25℃. Note 2: Pollution grade diagram must be provided if the pollution grade is grade IV. | ||||
CERTIFICATE
EXHIBITION
COMPANY OVERVIEW
PACKING&DELIVERY
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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