European Box-Type Distribution Power Transformer Substation From China Manufacturer

Prod Model:	ZBW
Connection Symbol:	Yd11 Ynd11 Dyn11 or Others
Frequency:	50/60Hz
Enclosure Material:	Optional
Application:	Electronic
Phase:	Three
Coil:	Core-type Transformer
Cooling Method:	Oil-immersed Type Transformer
Winding Type:	Two-winding Transformer
Brand:	Zhongyi

Product Description

ZBW European-Type Prefabricated Substation
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The ZBW European-style prefabricated substation, is made up of the high-voltage switchgear, low-voltage power distribution panel, distribution transformer and shell. The high-voltage switchgear comprises air load switch and the transformer is dry-type or oil immersed transformer. The cabinet body adopts good ventilation structure with elegant appearance and good heat-insulating performance. The temperature rise of the transformer room and the HV/IV rooms caused by the outdoor solar radiation can be reduced to within the lowest limits on account of the upper and lower ventilation pipes. The forced ventilation device and the temperature auto-controlled device should be installed in the cabinet. The systems of control, protect, display and the lighting that installed in every unit will be complete.
 

Item		Unit	Data
HV	Rated Frequency	Hz	50
	Rated voltage	kV	6      10      35
	Max working voltage	kV	6.9     11.5   40.5
	Power frequency withstand voltage /  Between poles to earth/lsolating distance	kV	32/36 42/48 95/118
	lightning impulse withstand voltage / Between poles to earth/Isolating distance	kV	60/70   75/85   185/215
	Rated current	A	400    630
	Rated short-time withstand current	kA	12.5(2S)   16(2S)    20(2S)
	Rated peak withstand current	kA	32.5  40  50
LV	Rated voltage	V	380   200
	Rated current of main circuit	A	100~3200
	Rated short-time withstand current	kA	15  30  50
	Rated peak withstand current	kA	30  63  110
	Branch  circuit	A	10 ~ 800
	Number of branch circuit	/	1 ~ 12
	Compensation capacity	kVAR	0 ~ 360
TRANSFORMER	Rated capacity	kVA	50~2000
	Short-circuit impedance	%	4   6
	Scope of branch connection	/	±2×2.5% ±5%
	Connection  group symbol	/	Yyn0   Dyn11

Application
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The type of transformers are applicable to 35KV and below, the small unattended substation, with main interior capacity of 5000KVA and below, is widely used in urban industrial substation, 10KV switch stations, ring network system, rural power grid 35KV substation and other occasions.




Main Function
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To complete the conversion, distribution, transmission, measuring, compensation and the system control of the electrical energy, meanwhile, realizing the functions of protection and communication.



Main Characters
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The preliminary and secondary equipments are pre-installed in the cabinet which is removable, whole-sealed, temperature automatic controlled, antiseptic, damp proof and rustproof, it only needs to be installed on the cement basis after arriving at the scene. This kind of transformers have the advantages of low investment, short construction period, small floor space and easy environmental coordination.





Notes to the ordering of the Europe Prefabricated Substation
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1   High voltage
Way of incoming line: terminal type, looped network type or double power in.
With the high pressure measurement or not. The position of the measurement(front of the switch or behind the switch), the requirement of the meter gauge and its supplier.
Type of the HV switch, one way is using the high voltage vacuum load switch and the fuse-combination unit which is the mainly used and its price is more economical; the other is adopting the disconnector switch and the vacuum breaker which is used in the high capacity transformer with higher price.

2    Transformer,: the transformer type, serial-number, the connection symbol group, capacity and the impedance voltage of the transformer.

3    Low voltageGrade of the switch(Supplier).The number of the outlet and the rated current value of every outlet switch.With the compensation or not, and the capacity of the compensation.With the measurement or not and the position.

4    Type of the busbar(copper or aluminum)

5    Layout of the transformer substation(with the operation corridor or not)
 
6   The material of transformer shell: composite board (commonly used), steel plate, stainless board or cement.

7    Delivery Period for European-type prefabricated substation