35kV offshore wind turbine dry-type transformer

SCSB-F-7400/35
This product is the first batch of self-developed dry-type transformers for offshore wind turbine towers that have achieved grid-connected operation. It predominantly employs air-water cooling for heat dissipation. The transformer indirectly exchanges heat with the external air through a cooling system. Its function is to step up the 690V or 1140V electrical energy generated by the wind turbine and convert it to 35kV, which is then transmitted to the wind farm step-up station via submarine cables.

Product Advantages
The shell has a high level of protection and efficient heat dissipation.
Strong resistance to corrosion and vibration.
The structure is compact, meeting the requirements for space utilization.
F1-level flame retardant performance, meeting climate C4 and environmental E4 standards.
Special cooling method, optimizing dedicated cooling air ducts.
Application scenario
This product is primarily utilized in offshore wind power projects and is capable of withstanding the harsh climatic and environmental conditions at sea.
Technical Specifications

parameter name	unit	parameter value
Product Model	–	SCSB-F-7400/35
Rated capacity	KVA	7400
Rated voltage ratio	KV	35/0.69
short-circuit impedance	%	10
rated frequency	Hz	50
Connection group label	–	Dy11y11
Insulation level	KV	LI170AC70/AC5
cooling method	–	AFWF
No-load loss	KW	10
load loss	KW	54
Temperature Rise Limit	K	≤100
Noise (sound pressure level)	dB(A)	<60

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