Dry SCBH15 Power Distribution Transformer

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.

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Description

dry type transformer (2)

dry type transformer (3)

dry type transformer

(2)

(3)

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.

Working Conditions:

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
8	Humidity	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
13	Earthquake Resistance	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.