Product model description

①	Combined transformer (American transformer)
②	Design No.
③	Rated Voltage
④	Main switch type of high-voltage switchgear: F-load switch; F. R-load switch + fuse
⑤	Type of operating mechanism for high-voltage switchgear: T-spring operating mechanism; S-manual mechanism
⑥	Rated capacity of transformer (kVA)

Service environment​

● Altitude: no more than 1000m;
● Ambient temperature: - 35℃~+40℃;
● Relative humidity: daily average value is not more than 95%, and monthly average value is not more than 90%;
● Installation site: no fire, explosion hazard, chemical corrosive gas and well ventilated site, and the ground inclination is not more than 3°;
Note: When ordering this product beyond the above conditions, please consult with our company.
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Technical parameter​

No.	Name	Unit	Parameter
1	Rated Voltage	kV	10/4 (HV/LV)​
2	Maximum operating voltage​	kV	12 (high voltage side)​
3	Rated frequency​	Hz	50
4	Rated capacity​	kVA	50-1600
5	1 minute power frequency withstand voltage​	kV	35
6	Lightning impulse Voltage	kV	75
7	Cooling mode​		Oil immersed self cooling​
8	Breaking current of high voltage backup fuse​	kA	50
9	Breaking current of plug-in fuse​	kA	25
10	Ambient temperature​	℃	-35~+40
11	Allowable temperature rise of coil​	℃	65
12	No-load voltage regulation​		±5%±2x2.5%
13	Noise level​	db	50
14	Degree of protection​		IP43

Installation dimension drawing

Ordering Instructions
Product operation site and special requirements:
1. The product ordering drawing should be provided. The ordering drawing shall include the wiring diagram, and shall indicate the transformer capacity, model and specification of main components, distribution branch circuit and capacity; 
2. When it is necessary to configure electric energy metering and reactive power automatic compensation devices, the configuration requirements of metering watt-hour meters and transformers shall be provided, and the capacity of compensation capacitors shall be indicated;
3. The requirements for product surface treatment should be indicated;
4. When ordering the combined transformer, please indicate the terminal type or ring network type.