1000kV on-site assembled off-circuit tap-changer single-phase autotransformer

ODFPS-JT-1500000/1000
This product is a 1000kV high-capacity UHV AC transformer independently developed and designed by TBEA. It is one of the key equipment in the UHV AC power transmission and transformation project, capable of achieving voltage conversion from high voltage to ultra-high voltage and from ultra-high voltage to UHV levels, and transmitting a large amount of power. Disassembling and transporting the transformer for on-site assembly provides a more convenient option for the transportation of UHV transformers.

Product Advantages
Large-capacity single-phase UHV disassembly and on-site assembly of transformers for transportation.
Unique mobile on-site drying technology, delivering superior on-site drying process performance.
The original frame-type iron core, body, and lead structure facilitate on-site installation.
Disassemble for transportation to meet the size and weight restrictions for large-scale transportation.
High short-circuit resistance, high mechanical strength, and explosion-proof design.
Application Scenarios
This product can be applied to UHV substation transmission and transformation lines, solving the problem of limited product transportation and providing strong support for long-distance, cross-regional, and large-capacity energy transmission.
Technical Specifications

Product Model	–	ODFPS-JT-1500000/1000
Rated capacity	KVA	1500000
Rated voltage ratio	KV	(1050/√3)/(525/√3±41.25%)/110
short-circuit impedance	%	L-M: 40% H-M: 18% H-L: 62%
rated frequency	Hz	50
Connection group label	–	Ia0i0
Insulation level	KV	SI1800LI2250AC1100（5min）-LI325AC140 SI1175LI1550AC630-LI325AC140 LI650AC275
cooling method	–	ODAF
No-load loss	KW	280
load loss	KW	2270
Temperature Rise Limit	K	Top oil layer: 55 Winding hot spot: 78
Noise (sound pressure level)	dB(A)	≤78

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