110kV 3상 부하 시 탭 체인저가 장착된 계통 연계 변압기

SSZ20-50000/110-NX2
This product is a 110kV three-phase three-winding oil-immersed on-load tap-changer tie transformer, independently developed and designed by TBEA. It is one of the key equipment in 110kV voltage level power transmission and transformation projects, serving to connect power grids of different voltage levels and meet the needs of the power system by adjusting the output voltage.

Product Advantages
Adopting advanced simulation verification technology, it boasts strong short-circuit resistance.
Advanced magnetic flux leakage control measures are adopted to reduce load losses.
Adopting a mature design scheme, the product boasts stable performance.
It is safe and energy-efficient, with simple operation and maintenance.
Application Scenarios
This product can be applied to 110kV voltage level transmission and transformation lines, providing strong support for long-distance, cross-regional, and large-capacity energy transmission.
Technical Specifications

Product Model	–	SSZ20-50000/110-NX2
Rated capacity	KVA	50000/50000/50000
Rated voltage ratio	KV	(110±8×1.25%)/(38.5±2×2.5%)/10.5
short-circuit impedance	%	L-M: 6.5%(±5%) H-M: 10.5%(±3%) L-H: 18%(±5%)
rated frequency	Hz	50
Connection group label	–	YNyn0d11
Insulation level	KV	LI480AC200-LI325AC140 LI200AC85-LI200AC85 LI75AC35
cooling method	–	ONAN
No-load loss	KW	≤29.6
load loss	KW	≤192
Temperature Rise Limit	K	Top oil layer: 50 Winding hot spot: 60
Noise (sound pressure level)	dB(A)	≤60